/* ═══════════════════════════════════════════════════════════════
   FLOODPLAIN FUTURES — styles.css
   Single stylesheet for all pages.
   Sections:
     1. TOKENS & FONTS
     2. HARD RESET
     3. HOME PAGE (index.html)
     4. SHARED NAV / HEADER COMPONENTS
     5. CONTEXT PAGE
     6. MAP PAGE
     7. SYSTEMS PAGE
     8. OBSERVATIONS PAGE
     9. RESPONSIVE — projector + mobile
═══════════════════════════════════════════════════════════════ */




/* ─────────────────────────────────────────────────────────────
   1. TOKENS & FONTS
───────────────────────────────────────────────────────────── */
:root {
    --whitebeige:  #fffdf2;
    --blackblue:   #0f1b3d;
    --darkblue:    #2e557c;
    --lightblue:   #7292cb;
    --olivegreen:  #bda543;
    --pink:        #f06896;
    --red:         #ef6244;
    --purple:      #bd7bcf;
    --yellow:      #f1b93f;

    /* grid tints */
    --grid:        rgba(15,27,61,.06);
    --grid-strong: rgba(15,27,61,.14);

    /* dark-surface utility */
    --surface:     #17254f;
    --border:      rgba(255,255,255,.1);
    --border-strong: rgba(255,255,255,.18);
    --ink:         #fffdf2;
    --ink-dim:     rgba(255,255,255,.55);
    --ink-faint:   rgba(255,255,255,.28);
}

@font-face {
    font-family: "Montreal";
    src: url("fonts/neuemontreal/PPNeueMontreal-Book.otf") format("opentype");
    font-display: swap;
}
@font-face {
    font-family: "Montreal Italic";
    src: url("fonts/neuemontreal/PPNeueMontreal-Italic.otf") format("opentype");
    font-display: swap;
}
@font-face {
    font-family: "DM Mono";
    src: url("fonts/DM_Mono/DMMono-Regular.ttf") format("truetype");
    font-display: swap;
}


/* ─────────────────────────────────────────────────────────────
   2. HARD RESET
───────────────────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    width: 100%;
    font-family: "Montreal", sans-serif;
    -webkit-text-size-adjust: 100%;
}

/* Default: overflow locked (home page). Sub-pages override below. */
html, body { 
    overflow: hidden; 
}


/* ─────────────────────────────────────────────────────────────
   3. HOME PAGE  (index.html)
───────────────────────────────────────────────────────────── */

/* VIDEO */
#myVideo {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    opacity: 0;
    transition: opacity 1s ease;
}
#myVideo.visible { 
    opacity: 1; 
}

/* LOADING SCREEN */
#loadingScreen {
    position: fixed;
    inset: 0;
    background-color: var(--blackblue);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 20;
    transition: opacity 0.6s ease;
    gap: 1rem;
}
#loadingScreen.hidden {
    opacity: 0;
    pointer-events: none;
}
#loadingText,
#loadingPercent {
    font-family: "Montreal", sans-serif;
    font-size: 1.5rem;
    color: var(--pink);
}

/* LANDING */
#landing {
    position: fixed;
    inset: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 8vw;
}
#landing.state-intro { justify-content: center; }
#landing.state-open {
    justify-content: space-between;
    padding: 0 8vw;
}
#landing.state-open .begin-link {
    opacity: 0;
    transform: translateX(1rem);
    pointer-events: none;
}

.title-block {
    max-width: 420px;
    text-align: left;
    transform: translateX(0);
    transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}
#landing.state-open .title-block { transform: translateX(-50px); }

.title-block h1 {
    font-family: "Montreal", sans-serif;
    font-size: 1.7rem;
    text-transform: lowercase;
    color: var(--whitebeige);
    margin-bottom: 0.5rem;
}

.spark {
    font-size: 2rem;
    color: var(--pink);
}

.material-symbols-outlined {
    font-size: 20px;
    vertical-align: middle;
    margin-right: 6px;
}

.menu a {
    display: flex;
    align-items: center;
    gap: 6px;
}

.begin-link {
    background: none;
    border: none;
    font-family: "Montreal", sans-serif;
    font-size: 1.8rem;
    color: var(--whitebeige);
    cursor: pointer;
    padding: 0;
    display: inline-flex;
    align-items: center;
    opacity: 1;
    transform: translateX(0);
    transition: opacity .4s ease, transform .6s ease, color .2s;
}
.begin-link:hover { color: var(--pink); }
.arrow {
    display: inline-block;
    transition: transform 0.3s ease;
    position: relative;
    top: 0.12em;
}
.begin-link:hover .arrow { transform: translateX(0.25em); }

/* NAV MENU */
.menu {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    opacity: 0;
    transform: translateX(2rem);
    pointer-events: none;
    transition: opacity 0.6s ease 0.6s, transform 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.6s;
}
#landing.state-open .menu {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}
.menu a {
    font-family: "Montreal", sans-serif;
    font-size: 1.6rem;
    color: var(--whitebeige);
    text-decoration: none;
    padding: 0.55rem 1.1rem;
    border-radius: 999px;
    width: fit-content;
    display: inline-flex;
    align-items: center;
    transition: background-color 0.25s ease, color 0.25s ease;
}
.menu a.cAbout:hover  { background-color: var(--pink);       color: var(--blackblue); }
.menu a.cMap:hover    { background-color: var(--olivegreen);  color: var(--blackblue); }
.menu a.cResearch:hover{ background-color: var(--red);        color: var(--blackblue); }
.menu a.cNotes:hover  { background-color: var(--yellow);      color: var(--blackblue); }


/* ─────────────────────────────────────────────────────────────
   4. SHARED NAV / HEADER COMPONENTS
   Used across context, systems, observations, map pages
───────────────────────────────────────────────────────────── */

/* Shared progress bar */
.ff-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0%;
    background: var(--pink);
    z-index: 1000;
    transition: width .1s linear;
    pointer-events: none;
}

/* Shared sub-page header */
.ff-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 200;
    height: 48px;
    background: rgba(15,27,61,.97);
    border-bottom: 1px solid rgba(255,255,255,.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    padding: 0 5vw;
    gap: 2rem;
}

.ff-header-back {
    font-family: "Montreal", sans-serif;
    font-size: .82rem;
    color: var(--whitebeige);
    opacity: .3;
    text-decoration: none;
    transition: opacity .2s, color .2s;
    white-space: nowrap;
    letter-spacing: .02em;
}
.ff-header-back:hover { 
    opacity: 1; color: var(--pink); 
}

.ff-header-title {
    font-family: "DM Mono", monospace;
    font-size: .58rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--whitebeige);
    opacity: .25;
    flex: 1;
    text-align: center;
}

.ff-header-meta {
    font-family: "DM Mono", monospace;
    font-size: .54rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--whitebeige);
    opacity: .2;
    white-space: nowrap;
}

/* Header prev/next nav */
.ff-header-nav {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    flex-shrink: 0;
}
.ff-header-nav-link {
    font-family: "Montreal", sans-serif;
    font-size: .82rem;
    color: var(--whitebeige);
    opacity: .3;
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: .02em;
    transition: opacity .2s, color .2s;
}
.ff-header-nav-link:hover { opacity: 1; color: var(--pink); }

/* Shared page footer */
.ff-footer {
    padding: 4rem 6vw 5rem;
    background: rgba(0,0,0,.18);
}
.ff-footer-rule {
    height: 1px;
    background: rgba(255,255,255,.07);
    margin-bottom: 2rem;
}
.ff-footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}
.ff-footer-credit {
    font-family: "DM Mono", monospace;
    font-size: .54rem;
    letter-spacing: .1em;
    color: var(--whitebeige);
    opacity: .18;
}
.ff-footer-nav {
    display: flex;
    gap: 2rem;
}
.ff-footer-nav a {
    font-family: "Montreal", sans-serif;
    font-size: .85rem;
    color: var(--whitebeige);
    opacity: .28;
    text-decoration: none;
    transition: opacity .2s, color .2s;
    letter-spacing: .02em;
}
.ff-footer-nav a:hover { opacity: 1; color: var(--pink); }

/* Shared section divider mark */
.ff-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}
.ff-divider-mark {
    font-size: 1rem;
    color: var(--yellow);
    opacity: .35;
}


/* ─────────────────────────────────────────────────────────────
   5. CONTEXT PAGE  — flowing layout
───────────────────────────────────────────────────────────── */

html:has(body.context-page) {
    overflow-y: auto;
    overflow-x: hidden;
    height: auto;
}
body.context-page {
    overflow-y: auto;
    overflow-x: hidden;
    height: auto;
    background-color: var(--blackblue);
    color: var(--whitebeige);
    min-height: 100vh;
}

/* ── PROGRESS BAR ── */
.ctx-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0%;
    background: var(--pink);
    z-index: 1000;
    transition: width .1s linear;
    pointer-events: none;
}

/* ── HERO ── */
.ctx-hero {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: clip;
    background: var(--blackblue);
}
.ctx-hero-photo {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.ctx-hero-photo img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center 40%;
    display: block;
}
.ctx-hero-photo::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom, rgba(15,27,61,.5) 0%, rgba(15,27,61,.1) 30%, rgba(15,27,61,.55) 70%, rgba(15,27,61,.95) 100%),
        linear-gradient(to right, rgba(15,27,61,.25) 0%, transparent 55%);
}

/* floating meta labels */
.ctx-hero-float {
    position: absolute;
    z-index: 10;
    display: flex;
    gap: .7rem;
    align-items: center;
    opacity: 0;
    animation: heroFade .6s ease forwards;
}
.ctx-hero-float--topleft  { top: 72px; left: 6vw;  animation-delay: .3s; }
.ctx-hero-float--topright { top: 72px; right: 6vw; animation-delay: .45s; }
@keyframes heroFade { to { opacity: 1; } }

.ctx-label {
    font-family: "DM Mono", monospace;
    font-size: .55rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--whitebeige);
    opacity: .55;
}
.ctx-label-sep {
    font-family: "DM Mono", monospace;
    font-size: .55rem;
    color: var(--whitebeige);
    opacity: .25;
}

/* the two big title words — independently placed */
.ctx-hero-word-big {
    position: absolute;
    z-index: 10;
    font-family: "Montreal", sans-serif;
    font-weight: 400;
    text-transform: lowercase;
    letter-spacing: -.04em;
    line-height: .9;
    opacity: 0;
}
/* FLOODPLAIN — large, left, upper-mid */
.ctx-hero-word-big--1 {
    font-size: clamp(5rem, 14vw, 13rem);
    color: var(--whitebeige);
    left: 5vw;
    top: 26%;
    animation: wordSlideUp .9s cubic-bezier(.22,1,.36,1) .2s forwards;
}
/* FUTURES — offset right, lower, pink */
.ctx-hero-word-big--2 {
    font-size: clamp(4rem, 11vw, 10rem);
    color: var(--pink);
    left: 20vw;
    top: 50%;
    animation: wordSlideUp .9s cubic-bezier(.22,1,.36,1) .38s forwards;
}
@keyframes wordSlideUp {
    from { opacity: 0; transform: translateY(36px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* subtitle — small annotation, bottom right */
.ctx-hero-sub-float {
    position: absolute;
    z-index: 10;
    bottom: 10vh;
    right: 6vw;
    font-family: "DM Mono", monospace;
    font-size: clamp(.58rem, .8vw, .72rem);
    line-height: 2;
    color: var(--whitebeige);
    opacity: 0;
    text-align: right;
    animation: heroFade .7s ease .72s forwards;
}

/* location annotation, mid-right */
.ctx-hero-ann {
    position: absolute;
    z-index: 12;
    right: 6vw;
    top: 36%;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .4rem;
    opacity: 0;
    animation: heroFade .6s ease .88s forwards;
}
.ctx-ann-line {
    display: block;
    width: 1px;
    height: 32px;
    background: rgba(255,255,255,.2);
    align-self: center;
}
.ctx-ann-text {
    font-family: "DM Mono", monospace;
    font-size: .46rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--whitebeige);
    opacity: .38;
    text-align: right;
    line-height: 1.7;
}

/* scroll nudge — bottom left */
.ctx-hero-scroll {
    position: absolute;
    bottom: 2.5rem;
    left: 6vw;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .4rem;
    opacity: 0;
    animation: heroFade .6s ease 1.05s forwards;
}
.ctx-scroll-line {
    display: block;
    width: 1px;
    height: 28px;
    background: rgba(255,255,255,.18);
}
.ctx-scroll-label {
    font-family: "DM Mono", monospace;
    font-size: .42rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--whitebeige);
    opacity: .25;
}

/* ── FLOW CONTAINER ── */
.ctx-flow {
    padding: 0 0 6rem;
    position: relative;
}

/* ── SECTION BASE ── */
.cfs {
    position: relative;
    padding: 7rem 8vw 5rem;
    overflow: visible;
}

/* huge ghost number behind each section */
.cfs-num-bg {
    position: absolute;
    top: 2rem;
    right: 5vw;
    font-family: "Montreal", sans-serif;
    font-size: clamp(8rem, 18vw, 16rem);
    font-weight: 400;
    letter-spacing: -.06em;
    color: var(--whitebeige);
    opacity: .025;
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

/* section number + title floated left */
.cfs-header-float {
    display: flex;
    align-items: baseline;
    gap: 1.2rem;
    margin-bottom: 3rem;
}
.cfs-num-sm {
    font-family: "DM Mono", monospace;
    font-size: .56rem;
    letter-spacing: .22em;
    color: var(--pink);
    opacity: .6;
    flex-shrink: 0;
}
.cfs-title {
    font-family: "Montreal", sans-serif;
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 400;
    text-transform: lowercase;
    letter-spacing: -.04em;
    color: var(--whitebeige);
    line-height: .95;
}

/* ── BODY TEXT ── */
.cfs-lede {
    font-family: "Montreal", sans-serif;
    font-size: clamp(1.05rem, 1.6vw, 1.25rem);
    line-height: 1.75;
    color: var(--whitebeige);
    opacity: .75;
    max-width: 640px;
    margin-bottom: 2rem;
}
.cfs-body-p {
    font-family: "Montreal", sans-serif;
    font-size: clamp(.9rem, 1.1vw, 1rem);
    line-height: 1.85;
    color: var(--whitebeige);
    opacity: .5;
    max-width: 580px;
    margin-bottom: 1.5rem;
}
.cfs-body-p--indent { margin-left: clamp(1rem, 5vw, 5rem); }

/* ── ASIDE (floats right, slightly offset) ── */
.cfs-aside-right {
    float: right;
    clear: right;
    width: clamp(180px, 28%, 260px);
    margin: 0 0 2rem 3rem;
    padding: 1.2rem 1.2rem 1.2rem 1rem;
    border-left: 2px solid var(--pink);
    background: rgba(240,104,150,.05);
    transform: rotate(.4deg);
    position: relative;
}
.cfs-aside-right::before {
    content: '';
    position: absolute;
    top: -4px; left: 12px;
    width: 20px; height: 7px;
    background: var(--pink);
    opacity: .3;
    clip-path: polygon(0 0,100% 0,88% 100%,12% 100%);
}
.cfs-aside-label {
    display: block;
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--pink);
    opacity: .7;
    margin-bottom: .6rem;
}
.cfs-aside-right p {
    font-family: "DM Mono", monospace;
    font-size: .68rem;
    line-height: 1.75;
    color: var(--whitebeige);
    opacity: .55;
}

/* ── PULL QUOTE — breaks left margin ── */
.cfs-pullquote {
    margin: 2.5rem 0 2.5rem clamp(-2rem, -4vw, -3rem);
    padding: 1.2rem 0 1.2rem 2rem;
    border-left: 3px solid var(--olivegreen);
    max-width: 520px;
    clear: both;
}
.cfs-pullquote p {
    font-family: "Montreal", sans-serif;
    font-size: clamp(1.05rem, 1.7vw, 1.3rem);
    line-height: 1.6;
    color: var(--olivegreen);
    font-style: italic;
    margin-bottom: .6rem;
}
.cfs-pullquote cite {
    font-family: "DM Mono", monospace;
    font-size: .52rem;
    letter-spacing: .1em;
    color: var(--whitebeige);
    opacity: .28;
    font-style: normal;
}

/* ── SCATTERED STATS ── */
.cfs-stats-scatter {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    margin-bottom: 3rem;
    clear: both;
}
.cfs-stat-pill {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    padding: 1rem 1.4rem;
    border: 1px solid rgba(255,255,255,.08);
    background: rgba(255,255,255,.02);
    transform: rotate(var(--rot, 0deg));
    transition: transform .2s;
    cursor: default;
}
.cfs-stat-pill:hover { transform: rotate(0deg) scale(1.02); }
.csp-n {
    font-family: "Montreal", sans-serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--clr, var(--pink));
    letter-spacing: -.04em;
    line-height: 1;
}
.csp-l {
    font-family: "DM Mono", monospace;
    font-size: .48rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--whitebeige);
    opacity: .28;
}

/* ── TILES — four roles as scattered inline labels ── */
.cfs-tiles {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin: 3rem -8vw;
    clear: both;
}
.cfs-tile {
    flex: 1 1 calc(25% - 1px);
    min-width: 160px;
    padding: 2rem 1.8rem;
    border-right: 1px solid rgba(255,255,255,.06);
    border-top: 1px solid rgba(255,255,255,.06);
    transform: rotate(var(--rot, 0deg));
    transition: background .2s, transform .2s;
    background: transparent;
}
.cfs-tile:hover {
    background: rgba(255,255,255,.02);
    transform: rotate(0deg);
}
.cfs-tile:last-child { border-right: none; }
.cft-label {
    display: block;
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    margin-bottom: .8rem;
    opacity: .85;
}
.cfs-tile p {
    font-family: "DM Mono", monospace;
    font-size: .65rem;
    line-height: 1.82;
    color: var(--whitebeige);
    opacity: .35;
}

/* ── TRAIL TEXT ── */
.cfs-trail {
    font-family: "DM Mono", monospace;
    font-size: .72rem;
    line-height: 1.85;
    color: var(--whitebeige);
    opacity: .32;
    max-width: 420px;
    margin: 2rem 0 0 clamp(2rem, 8vw, 8rem);
    clear: both;
}
.cfs-trail--right {
    margin-left: auto;
    margin-right: 0;
    text-align: right;
}

/* ── IMAGE SLOTS ── */
.cfs-img-slot {
    position: relative;
    background: rgba(255,255,255,.03);
    border: 1px dashed rgba(255,255,255,.08);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 220px;
}
.cfs-img-slot::after {
    content: attr(data-label);
    position: absolute;
    bottom: .7rem; left: 50%;
    transform: translateX(-50%);
    font-family: "DM Mono", monospace;
    font-size: .44rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.15);
    white-space: nowrap;
    pointer-events: none;
}
.cfs-img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* tall — first-visit photo, sits right of intro text */
.cfs-img-slot--tall { min-height: 380px; }

/* wide — full bleed past margins */
.cfs-img-slot--wide {
    margin: 2.5rem -8vw;
    min-height: clamp(220px, 38vw, 480px);
    border-left: none; border-right: none;
}

/* map — large, bleeds left */
.cfs-img-slot--map {
    min-height: clamp(260px, 36vw, 460px);
    margin-left: -8vw;
}

/* diagram */
.cfs-img-slot--diagram { min-height: 280px; }

/* ── PREMISE: text floats right of tall photo ── */
.cfs-col2 {
    display: flex;
    align-items: flex-start;
    gap: 3vw;
    margin-bottom: 0;
}
/* photo takes 55% */
.cfs-col2 .cfs-img-slot--tall {
    flex: 0 0 55%;
    margin-left: -8vw;   /* bleeds left past section padding */
}
.cfs-col2-text {
    flex: 1;
    padding-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}
/* demote body text to annotation weight inside col2 */
.cfs-col2-text .cfs-lede {
    font-size: clamp(.88rem, 1.2vw, 1rem);
    opacity: .65;
    max-width: none;
    margin-bottom: 0;
}
.cfs-col2-text .cfs-body-p {
    font-family: "DM Mono", monospace;
    font-size: .68rem;
    opacity: .38;
    max-width: none;
    margin-bottom: 0;
}

/* ── PLACE: map bleeds left, caption annotation beside it ── */
.cfs-map-row {
    display: flex;
    align-items: flex-start;
    gap: 3vw;
    margin: 2.5rem 0;
}
.cfs-map-row .cfs-img-slot--map {
    flex: 0 0 58%;
}
.cfs-map-caption {
    flex: 1;
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}
/* annotation weight */
.cfs-map-caption .cfs-lede {
    font-size: clamp(.82rem, 1.1vw, .95rem);
    opacity: .6;
    max-width: none;
    margin-bottom: 0;
}
.cfs-map-caption .cfs-body-p {
    font-family: "DM Mono", monospace;
    font-size: .65rem;
    line-height: 1.82;
    opacity: .35;
    max-width: none;
    margin-bottom: 0;
}

/* ── PHOTO PAIR: unequal, offset vertically ── */
.cfs-photo-pair {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin: 2rem -4vw 0;
}
.cfs-photo-pair .cfs-img-slot:first-child {
    flex: 0 0 58%;
    min-height: 280px;
    margin-top: 0;
}
.cfs-photo-pair .cfs-img-slot:last-child {
    flex: 1;
    min-height: 200px;
    margin-top: 3rem; /* vertical offset — the "non-boxy" key */
}

/* ── METHOD LAYOUT: steps flow, diagram floats right ── */
.cfs-method-layout {
    display: flex;
    align-items: flex-start;
    gap: 4vw;
    margin: 2rem 0;
}
.cfs-method-layout .cfs-steps {
    flex: 1;
}
.cfs-method-layout .cfs-img-slot--diagram {
    flex: 0 0 38%;
    min-height: 320px;
    margin-top: 2rem;
    margin-right: -8vw;
    align-self: flex-start;
}

/* ── THESIS FOOTNOTES ── */
.cfs-thesis-footnotes {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
    max-width: 600px;
}

/* ── BIG QUESTION CALLOUT ── */
.cfs-big-q {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin: 3rem 0;
    padding: 2rem 2rem 2rem 1.5rem;
    border: 1px solid rgba(240,104,150,.2);
    background: rgba(240,104,150,.03);
    position: relative;
    /* slightly tilt */
    transform: rotate(-.3deg);
    transition: transform .3s;
}
.cfs-big-q:hover { transform: rotate(0deg); }
.cbq-mark {
    font-family: "Montreal", sans-serif;
    font-size: clamp(3rem, 6vw, 5rem);
    color: var(--pink);
    opacity: .25;
    line-height: 1;
    flex-shrink: 0;
    margin-top: -.3rem;
}
.cbq-text {
    font-family: "Montreal", sans-serif;
    font-size: clamp(1.05rem, 1.8vw, 1.35rem);
    line-height: 1.6;
    color: var(--whitebeige);
    opacity: .7;
    font-style: italic;
}

/* ── STAIRCASE STEPS ── */
.cfs-steps {
    list-style: none;
    margin: 2.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}
.cfs-step {
    display: flex;
    align-items: baseline;
    gap: 1.4rem;
    padding: 1.4rem 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
    padding-left: var(--nudge, 0rem);
    transition: padding-left .25s cubic-bezier(.22,1,.36,1);
}
.cfs-step:hover { padding-left: calc(var(--nudge, 0rem) + .6rem); }
.cfs-step-n {
    font-family: "DM Mono", monospace;
    font-size: .54rem;
    letter-spacing: .16em;
    color: var(--pink);
    opacity: .45;
    flex-shrink: 0;
    min-width: 22px;
}
.cfs-step-body { display: flex; flex-direction: column; gap: .35rem; }
.cfs-step-body strong {
    font-family: "Montreal", sans-serif;
    font-size: .98rem;
    font-weight: 400;
    color: var(--whitebeige);
    opacity: .8;
    text-transform: lowercase;
    letter-spacing: -.01em;
}
.cfs-step-body p {
    font-family: "DM Mono", monospace;
    font-size: .68rem;
    line-height: 1.75;
    color: var(--whitebeige);
    opacity: .3;
}

/* ── THESIS CARD ── */
.cfs-thesis-card {
    position: relative;
    border: 1px solid rgba(240,104,150,.22);
    padding: 2.8rem 2.8rem 2.4rem;
    margin: 2.5rem 0 2.5rem clamp(-1rem, -2vw, -1.5rem);
    background: rgba(240,104,150,.03);
    transform: rotate(-.15deg);
    transition: transform .3s;
}
.cfs-thesis-card:hover { transform: rotate(0deg); }
.ctc-label {
    display: block;
    font-family: "DM Mono", monospace;
    font-size: .48rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--pink);
    opacity: .55;
    margin-bottom: 1.2rem;
}
.ctc-text {
    font-family: "Montreal", sans-serif;
    font-size: clamp(1rem, 1.5vw, 1.18rem);
    line-height: 1.72;
    color: var(--whitebeige);
    opacity: .8;
}
.ctc-corner {
    position: absolute;
    bottom: 1rem; right: 1.2rem;
    font-size: .8rem;
    color: var(--pink);
    opacity: .2;
}

/* ── SECTION RULE ── */
.cfs-rule {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 8vw;
    position: relative;
}
.cfs-rule::before,
.cfs-rule::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,.06);
}
.cfs-rule span {
    font-size: .85rem;
    color: var(--yellow);
    opacity: .3;
    padding: 0 1.2rem;
}

/* ── FOOTER ── */
.ctx-footer { padding: 2rem 8vw 5rem; }
.ctx-footer-rule { height: 1px; background: rgba(255,255,255,.07); margin-bottom: 2rem; }
.ctx-footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.ctx-footer-credit {
    font-family: "DM Mono", monospace;
    font-size: .54rem;
    letter-spacing: .1em;
    color: var(--whitebeige);
    opacity: .18;
}
.ctx-footer-nav { display: flex; gap: 2rem; }
.ctx-footer-nav a {
    font-family: "Montreal", sans-serif;
    font-size: .82rem;
    color: var(--whitebeige);
    opacity: .28;
    text-decoration: none;
    transition: opacity .2s, color .2s;
}
.ctx-footer-nav a:hover { opacity: 1; color: var(--pink); }

/* ── SCROLL REVEALS ── */
[data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .85s cubic-bezier(.22,1,.36,1), transform .85s cubic-bezier(.22,1,.36,1);
}
[data-reveal].visible { opacity: 1; transform: none; }

/* ── MOBILE ── */
@media (max-width: 700px) {
    .cfs { padding: 4rem 6vw 3rem; }
    .cfs-num-bg { font-size: 8rem; opacity: .02; }
    .cfs-col2,
    .cfs-map-row,
    .cfs-method-layout { flex-direction: column; }
    .cfs-col2 .cfs-img-slot--tall,
    .cfs-map-row .cfs-img-slot--map { flex: none; width: 100%; margin-left: 0; }
    .cfs-method-layout .cfs-img-slot--diagram { flex: none; width: 100%; margin-right: 0; }
    .cfs-photo-pair { flex-direction: column; margin-left: 0; margin-right: 0; }
    .cfs-photo-pair .cfs-img-slot:last-child { margin-top: 0; }
    .cfs-tiles { margin-left: 0; margin-right: 0; }
    .cfs-tile { flex: 1 1 calc(50% - 1px); }
    .cfs-img-slot--wide { margin: 2rem -6vw; }
    .cfs-img-slot--map  { margin-left: 0; }
    .cfs-pullquote { margin-left: 0; }
    .cfs-tiles { grid-template-columns: 1fr; }
    .cfs-trail { margin-left: 0; }
    .cfs-trail--right { text-align: left; }
    .cfs-thesis-card { margin-left: 0; }
    .ctx-hero-ann { display: none; }
    .ctx-footer-inner { flex-direction: column; text-align: center; }
    .ctx-hero-text { padding: 0 6vw 8vh; }
    .cfs-step { padding-left: 0 !important; }
}


/* ─────────────────────────────────────────────────────────────
   6. MAP PAGE
───────────────────────────────────────────────────────────── */

body.map-page {
    overflow: hidden;
    height: 100%;
    background: var(--whitebeige);
    color: var(--blackblue);
}
html:has(body.map-page) { overflow: hidden; height: 100%; }

.map-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 300;
    height: 48px;
    background: var(--whitebeige);
    border-bottom: 1px solid var(--grid-strong);
    display: flex;
    align-items: center;
    padding: 0 4vw;
    gap: 3vw;
}
.mh-item {
    font-family: "DM Mono", monospace;
    font-size: .72rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--blackblue);
    opacity: .7;
    white-space: nowrap;
}
.mh-item.accent {
    color: var(--olivegreen);
    opacity: 1;
    font-family: "DM Mono", monospace;
    font-size: .72rem;
    font-weight: 400;
    letter-spacing: .1em;
}
.mh-divider {
    width: 1px; height: 10px;
    background: var(--grid-strong);
    flex-shrink: 0;
}
.mh-spacer { flex: 1; }
.mh-back {
    font-family: "DM Mono", monospace;
    font-size: .72rem;
    letter-spacing: .08em;
    color: var(--blackblue);
    opacity: .6;
    text-decoration: none;
    padding: .6rem 0;
    transition: opacity .2s, color .2s;
}
.mh-back:hover { opacity: 1; color: var(--pink); }

.panel-toggle-btn {
    display: none;
    align-items: center;
    gap: .45rem;
    background: rgba(255,253,242,.92);
    border: 1px solid var(--grid-strong);
    padding: .35rem .7rem;
    cursor: pointer;
    font-family: "DM Mono", monospace;
    font-size: .65rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--blackblue);
    opacity: .7;
    transition: opacity .2s, border-color .2s;
    white-space: nowrap;
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 50;
}
.panel-toggle-btn:hover,
.panel-toggle-btn.active { opacity: 1; border-color: var(--pink); color: var(--pink); }
.ptb-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--pink);
    opacity: .7;
    flex-shrink: 0;
}

.map-layout {
    position: fixed;
    inset: 48px 0 0 0;
    display: grid;
    grid-template-columns: 280px 1fr;
}

.map-panel {
    background: var(--whitebeige);
    border-right: 1px solid var(--grid-strong);
    overflow-y: auto;
    padding: 1.6rem 1.4rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
}

/* mobile drag handle */
.panel-drag-handle {
    display: none;
    width: 36px; height: 4px;
    background: var(--grid-strong);
    border-radius: 2px;
    margin: 0 auto .5rem;
    cursor: grab;
}

.panel-title {
    font-family: "Montreal", sans-serif;
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 400;
    text-transform: lowercase;
    letter-spacing: -.04em;
    line-height: .92;
    color: var(--blackblue);
}
.panel-rule {
    height: 1px;
    background: var(--grid-strong);
}
.panel-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--grid-strong);
    border: 1px solid var(--grid-strong);
}
.p-stat {
    background: var(--whitebeige);
    padding: .9rem .8rem;
    display: flex;
    flex-direction: column;
    gap: .25rem;
}
.stat-lbl {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--blackblue);
    opacity: .35;
}
.stat-val {
    font-family: "Montreal", sans-serif;
    font-size: 1.1rem;
    letter-spacing: -.02em;
    color: var(--blackblue);
    line-height: 1;
}
.stat-val.pink  { color: var(--pink); }
.stat-val.blue  { color: var(--lightblue); }
.stat-val.olive { color: var(--olivegreen); }

.layers-wrap { display: flex; flex-direction: column; gap: .3rem; }
.layers-title {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--blackblue);
    opacity: .3;
    margin-bottom: .4rem;
}
.layer-row {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .6rem .8rem;
    border: 1px solid var(--grid-strong);
    cursor: pointer;
    transition: background .15s;
    user-select: none;
}
.layer-row:hover { background: var(--grid); }
.layer-row.active { background: var(--grid); }
.l-swatch {
    width: 10px; height: 10px;
    border-radius: 2px;
    border: 1px solid;
    flex-shrink: 0;
}
.layer-name {
    font-family: "DM Mono", monospace;
    font-size: .8rem;
    letter-spacing: .06em;
    color: var(--blackblue);
    opacity: .65;
    flex: 1;
}
.l-toggle {
    width: 22px; height: 12px;
    border-radius: 6px;
    background: var(--grid-strong);
    flex-shrink: 0;
    position: relative;
    transition: background .2s;
}
.l-toggle::after {
    content: '';
    position: absolute;
    top: 2px; left: 2px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--blackblue);
    opacity: .3;
    transition: transform .2s, opacity .2s, background .2s;
}
.layer-row.active .l-toggle { background: var(--pink); }
.layer-row.active .l-toggle::after {
    transform: translateX(10px);
    opacity: 1;
    background: white;
}

.annotation-card {
    padding: .9rem 1rem;
    border: 1px solid var(--grid-strong);
    background: var(--grid);
}
.annotation-card p {
    font-family: "DM Mono", monospace;
    font-size: .8rem;
    line-height: 1.75;
    color: var(--blackblue);
    opacity: .5;
    text-transform: lowercase;
}

.conditions { display: flex; flex-direction: column; gap: .15rem; margin-top: .4rem; }
.cond-title {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--blackblue);
    opacity: .28;
    margin-bottom: .4rem;
}
.cond-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: .35rem 0;
    border-bottom: 1px solid var(--grid);
}
.cond-row:last-child { border-bottom: none; }
.ck {
    font-family: "DM Mono", monospace;
    font-size: .58rem;
    letter-spacing: .08em;
    color: var(--blackblue);
    opacity: .35;
}
.cv {
    font-family: "DM Mono", monospace;
    font-size: .6rem;
    color: var(--blackblue);
    opacity: .7;
    text-align: right;
}

/* MAP AREA */
.map-right {
    position: relative;
    overflow: hidden;
}
#leafletMap {
    position: absolute;
    inset: 0;
}

/* Map overlays */
.map-tag {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    pointer-events: none;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
}
.map-tag-big {
    font-family: "Montreal", sans-serif;
    font-size: clamp(2.5rem, 7vw, 6rem);
    font-weight: 400;
    letter-spacing: .18em;
    color: var(--blackblue);
    opacity: .06;
    line-height: 1;
}
.map-tag-line {
    font-family: "DM Mono", monospace;
    font-size: .52rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--blackblue);
    opacity: .2;
}
.map-north {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    z-index: 10;
    pointer-events: none;
    opacity: .6;
}
.map-sheet {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .18rem;
    pointer-events: none;
}
.map-sheet span {
    font-family: "DM Mono", monospace;
    font-size: .44rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--blackblue);
    opacity: .2;
}
.coord-readout {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    font-family: "DM Mono", monospace;
    font-size: .52rem;
    letter-spacing: .12em;
    color: var(--blackblue);
    opacity: .25;
    pointer-events: none;
    white-space: nowrap;
}
.hide-mobile { /* shown by default, hidden in mobile media query */ }


/* ─────────────────────────────────────────────────────────────
   7. SYSTEMS PAGE
───────────────────────────────────────────────────────────── */

body.systems-page {
    overflow-y: auto;
    overflow-x: hidden;
    height: auto;
    background: var(--blackblue);
    color: white;
    min-height: 100vh;
}
html:has(body.systems-page) { overflow-y: auto; height: auto; }

/* PROGRESS */
.sys-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0;
    background: var(--pink);
    z-index: 1000;
    transition: width .1s linear;
    pointer-events: none;
}

/* MAIN */
.sys-main { padding-top: 48px; }

/* HERO */
.sys-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6vw;
    padding: 8vh 6vw 7vh;
    border-bottom: 1px solid rgba(255,255,255,.07);
    align-items: center;
}
.sys-eyebrow {
    font-family: "DM Mono", monospace;
    font-size: .56rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--pink);
    opacity: .65;
    margin-bottom: 1.4rem;
}
.sys-hero-title {
    font-family: "Montreal", sans-serif;
    font-size: clamp(3.5rem, 8vw, 7rem);
    font-weight: 400;
    line-height: .92;
    letter-spacing: -.04em;
    text-transform: lowercase;
    color: white;
    margin-bottom: 2rem;
}
.sys-hero-body {
    font-family: "DM Mono", monospace;
    font-size: clamp(.75rem, 1vw, .88rem);
    line-height: 1.85;
    color: rgba(255,255,255,.45);
    max-width: 420px;
}

/* IMAGE SLOTS */
.sys-hero-img-slot,
.sys-section-img-slot {
    position: relative;
    width: 100%;
    background: rgba(255,255,255,.025);
    border: 1px dashed rgba(255,255,255,.1);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    overflow: hidden;
}
.sys-section-img-slot { margin-bottom: 2.5rem; min-height: 200px; }
.sys-section-img-slot--wide { min-height: 260px; margin-bottom: 3rem; }
.sys-hero-img, .sys-section-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.img-missing .sys-hero-img,
.img-missing .sys-section-img { display: none; }
.img-placeholder-label {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.15);
    position: absolute;
    bottom: .8rem;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    pointer-events: none;
}
.sys-hero-img-slot:not(.img-missing) .img-placeholder-label,
.sys-section-img-slot:not(.img-missing) .img-placeholder-label { opacity: 0; }

/* TOGGLE CONTROLS */
.sys-controls {
    background: rgba(255,255,255,.03);
    border: 1px solid rgba(255,255,255,.07);
    padding: 1.2rem 1.6rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}
.sys-controls-label {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: white;
    opacity: .25;
    white-space: nowrap;
    flex-shrink: 0;
}
.sys-toggles { display: flex; flex-direction: row; gap: .5rem; flex-wrap: wrap; flex: 1; }
.sys-toggle {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .6rem .9rem;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.07);
    cursor: pointer;
    text-align: left;
    transition: background .2s, border-color .2s, opacity .2s;
}
.sys-toggle:hover { background: rgba(255,255,255,.07); }
.sys-toggle.inactive { opacity: .3; border-color: rgba(255,255,255,.03); }
.toggle-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: opacity .2s;
}
.sys-toggle.inactive .toggle-dot { opacity: .25; }
.toggle-name {
    font-family: "Montreal", sans-serif;
    font-size: .88rem;
    color: white;
    text-transform: lowercase;
}
.toggle-desc {
    font-family: "DM Mono", monospace;
    font-size: .52rem;
    letter-spacing: .05em;
    color: white;
    opacity: .28;
}

/* SECTIONS */
.sys-section { padding: 6rem 6vw; border-bottom: 1px solid rgba(255,255,255,.06); }
.sys-section-header { margin-bottom: 2.5rem; }
.sys-section-num {
    font-family: "DM Mono", monospace;
    font-size: .52rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--pink);
    opacity: .5;
    display: block;
    margin-bottom: .6rem;
}
.sys-section-title {
    font-family: "Montreal", sans-serif;
    font-size: clamp(1.8rem, 3.5vw, 3rem);
    font-weight: 400;
    text-transform: lowercase;
    letter-spacing: -.03em;
    color: white;
    margin-bottom: .8rem;
    line-height: 1;
}
.sys-section-desc {
    font-family: "DM Mono", monospace;
    font-size: .75rem;
    line-height: 1.75;
    color: rgba(255,255,255,.35);
    max-width: 600px;
}

/* ANNUAL CHART */
.sys-chart-wrap { position: relative; margin-bottom: 2.5rem; }
.sys-chart {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
    height: 300px;
    align-items: end;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.sys-chart-year {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    justify-content: flex-end;
    cursor: pointer;
}
.sys-bar-group {
    display: flex;
    gap: 3px;
    align-items: flex-end;
    width: 100%;
    justify-content: center;
}
.sys-bar {
    border-radius: 2px 2px 0 0;
    width: 100%;
    max-width: 24px;
    min-height: 2px;
    transition: height .6s cubic-bezier(.22,1,.36,1), opacity .3s, filter .2s;
    cursor: pointer;
}
.sys-bar.flood-bar  { background: var(--lightblue); opacity: .8; }
.sys-bar.birds-bar  { background: var(--pink);      opacity: .8; }
.sys-bar.rice-bar   { background: var(--olivegreen); opacity: .8; }
.sys-bar.dim        { opacity: .15; }
.sys-chart-year:hover .sys-bar:not(.dim) { filter: brightness(1.2); }
.sys-chart-labels-x {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
    margin-top: .6rem;
}
.sys-chart-labels-x span {
    font-family: "DM Mono", monospace;
    font-size: .6rem;
    letter-spacing: .1em;
    color: rgba(255,255,255,.3);
    text-align: center;
}

/* LEGEND */
.sys-legend { display: flex; flex-direction: column; gap: .6rem; margin-bottom: 2rem; }
.sys-legend-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .7rem 1rem;
    border: 1px solid rgba(255,255,255,.04);
}
.sys-legend-item[data-system="flood"] { border-left: 2px solid var(--lightblue); }
.sys-legend-item[data-system="birds"] { border-left: 2px solid var(--pink); }
.sys-legend-item[data-system="rice"]  { border-left: 2px solid var(--olivegreen); }
.sys-legend-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.sys-legend-name {
    font-family: "Montreal", sans-serif;
    font-size: .85rem;
    color: white;
    opacity: .72;
    display: block;
    margin-bottom: .15rem;
}
.sys-legend-src {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .05em;
    color: rgba(255,255,255,.25);
    display: block;
}
.sys-legend-unit {
    font-family: "DM Mono", monospace;
    font-size: .55rem;
    letter-spacing: .07em;
    color: rgba(255,255,255,.2);
    margin-left: auto;
    white-space: nowrap;
}

/* TOOLTIP */
.sys-tooltip {
    position: fixed;
    z-index: 500;
    background: rgba(15,27,61,.97);
    border: 1px solid rgba(255,255,255,.12);
    padding: 1rem 1.2rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity .15s;
    max-width: 240px;
    backdrop-filter: blur(8px);
}
.sys-tooltip.visible { opacity: 1; }
.sys-tooltip-year {
    font-family: "DM Mono", monospace;
    font-size: .56rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--yellow);
    display: block;
    margin-bottom: .65rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.sys-tooltip-row { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: .2rem 0; }
.sys-tooltip-label {
    font-family: "DM Mono", monospace;
    font-size: .52rem;
    letter-spacing: .08em;
    color: rgba(255,255,255,.38);
    text-transform: uppercase;
}
.sys-tooltip-val { font-family: "Montreal", sans-serif; font-size: .85rem; color: white; }

/* CALLOUT */
.sys-callout {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
    padding: 1.4rem 1.8rem;
    border: 1px solid rgba(255,255,255,.06);
    background: rgba(255,255,255,.02);
    margin-top: 2rem;
}
.sys-callout-mark {
    font-family: "DM Mono", monospace;
    font-size: 1rem;
    color: var(--yellow);
    opacity: .5;
    flex-shrink: 0;
    margin-top: .05rem;
}
.sys-callout p { font-family: "DM Mono", monospace; font-size: .72rem; line-height: 1.82; color: rgba(255,255,255,.48); }
.sys-callout strong { color: white; font-weight: 400; }

/* SEASONAL WHEEL */
.sys-wheel-wrap { display: grid; grid-template-columns: 400px 1fr; gap: 5vw; align-items: start; }
.sys-wheel { position: relative; width: 100%; max-width: 400px; }
.sys-wheel svg { width: 100%; height: auto; }
.sys-wheel svg .month-slice { transition: opacity .15s; cursor: pointer; }
.sys-wheel-detail { padding-top: .5rem; }
.wheel-prompt {
    font-family: "DM Mono", monospace;
    font-size: .6rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.18);
    margin-bottom: 1rem;
}
.wheel-detail-month {
    font-family: "Montreal", sans-serif;
    font-size: 2.5rem;
    font-weight: 400;
    text-transform: lowercase;
    letter-spacing: -.04em;
    color: white;
    margin-bottom: 1.4rem;
    line-height: 1;
    min-height: 2.5rem;
}
.wheel-detail-row { display: flex; gap: 1rem; align-items: flex-start; padding: 1rem 0; border-bottom: 1px solid rgba(255,255,255,.06); }
.wheel-detail-row:last-child { border-bottom: none; }
.wdr-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; margin-top: .4rem; }
.wdr-system {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: rgba(255,255,255,.25);
    display: block;
    margin-bottom: .3rem;
}
.wdr-desc { font-family: "DM Mono", monospace; font-size: .68rem; line-height: 1.72; color: rgba(255,255,255,.55); }

/* BIRD GRID */
.sys-bird-filters { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: 2rem; }
.sys-bird-filter {
    font-family: "DM Mono", monospace;
    font-size: .56rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .38rem .9rem;
    background: none;
    border: 1px solid rgba(255,255,255,.1);
    color: rgba(255,255,255,.38);
    cursor: pointer;
    transition: background .2s, color .2s, border-color .2s;
}
.sys-bird-filter:hover { color: white; border-color: rgba(255,255,255,.28); }
.sys-bird-filter.active { background: rgba(255,255,255,.05); border-color: var(--pink); color: var(--pink); }
.sys-bird-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-auto-rows: 1fr;
    gap: 1px;
    background: rgba(255,255,255,.06);
    margin-bottom: 2rem;
    align-items: stretch;
}
.bird-card {
    background: var(--blackblue);
    padding: 0;
    display: flex;
    flex-direction: column;
    transition: background .2s;
    min-width: 0;
    overflow: hidden;
}
.bird-card:hover { background: rgba(255,255,255,.025); }
.bird-card.hidden { display: none; }
.bird-card-img-slot {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background: rgba(255,255,255,.03);
    border-bottom: 1px solid rgba(255,255,255,.05);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.bird-card-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bird-img-missing .bird-card-img { display: none; }
.bird-img-label {
    font-family: "DM Mono", monospace;
    font-size: .46rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(255,255,255,.12);
    position: absolute;
    bottom: .5rem;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    pointer-events: none;
}
.bird-card-img-slot:not(.bird-img-missing) .bird-img-label { opacity: 0; }
.bird-card-content { padding: 1.4rem; display: flex; flex-direction: column; gap: .65rem; flex: 1; min-width: 0; overflow: hidden; }
.bird-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: .8rem; flex-shrink: 0; }
.bird-card-num { font-family: "DM Mono", monospace; font-size: .5rem; letter-spacing: .14em; color: rgba(255,255,255,.18); }
.bird-card-season { font-family: "DM Mono", monospace; font-size: .48rem; letter-spacing: .12em; text-transform: uppercase; padding: .16rem .48rem; border: 1px solid currentColor; flex-shrink: 0; }
.season-winter   { color: var(--lightblue); }
.season-spring   { color: var(--olivegreen); }
.season-summer   { color: var(--yellow); }
.season-fall     { color: var(--pink); }
.season-yearround{ color: rgba(255,255,255,.35); }
.bird-card-name { font-family: "Montreal", sans-serif; font-size: 1rem; color: white; font-weight: 400; text-transform: lowercase; letter-spacing: -.01em; line-height: 1.2; }
.bird-card-sci { font-family: "DM Mono", monospace; font-size: .52rem; font-style: italic; color: rgba(255,255,255,.2); letter-spacing: .03em; }
.bird-card-bar { height: 2px; background: rgba(255,255,255,.06); border-radius: 1px; position: relative; overflow: hidden; }
.bird-card-bar-fill { position: absolute; top: 0; left: 0; bottom: 0; border-radius: 1px; transition: width .8s cubic-bezier(.22,1,.36,1); }
.bird-card-stat { font-family: "DM Mono", monospace; font-size: .56rem; letter-spacing: .05em; color: rgba(255,255,255,.28); }
.bird-card-stat strong { font-weight: 400; color: rgba(255,255,255,.6); }
.bird-card-connection { font-family: "DM Mono", monospace; font-size: .62rem; line-height: 1.72; color: rgba(255,255,255,.36); border-top: 1px solid rgba(255,255,255,.05); padding-top: .7rem; margin-top: .2rem; overflow: hidden; word-break: break-word; }

/* RICE TABLE */
.sys-table-wrap { overflow-x: auto; margin-bottom: 2rem; }
.sys-table { width: 100%; border-collapse: collapse; }
.sys-table th {
    font-family: "DM Mono", monospace;
    font-size: .5rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: rgba(255,255,255,.22);
    padding: .8rem 1.2rem;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,.1);
    white-space: nowrap;
}
.sys-table td {
    font-family: "DM Mono", monospace;
    font-size: .7rem;
    color: rgba(255,255,255,.6);
    padding: .9rem 1.2rem;
    border-bottom: 1px solid rgba(255,255,255,.05);
    vertical-align: top;
    line-height: 1.5;
}
.sys-table tr:hover td { background: rgba(255,255,255,.02); }
.sys-table td.year-col { font-family: "Montreal", sans-serif; font-size: 1.1rem; color: white; letter-spacing: -.02em; }
.sys-table td.acres-col strong { font-family: "Montreal", sans-serif; font-size: 1rem; color: var(--olivegreen); font-weight: 400; letter-spacing: -.02em; }
.flood-badge { font-family: "DM Mono", monospace; font-size: .48rem; letter-spacing: .12em; text-transform: uppercase; padding: .15rem .48rem; border: 1px solid var(--lightblue); color: var(--lightblue); white-space: nowrap; }
.drought-badge { font-family: "DM Mono", monospace; font-size: .48rem; letter-spacing: .12em; text-transform: uppercase; padding: .15rem .48rem; border: 1px solid rgba(255,255,255,.15); color: rgba(255,255,255,.3); white-space: nowrap; }
.sys-rice-note { margin-bottom: 2rem; }
.sys-rice-note-inner { padding: 1.4rem 1.8rem; border: 1px solid rgba(189,165,67,.18); background: rgba(189,165,67,.03); }
.sys-rice-note-inner p { font-family: "DM Mono", monospace; font-size: .72rem; line-height: 1.8; color: rgba(255,255,255,.45); }

/* ─────────────────────────────────────────────────────────────
   BUBBLE NETWORK CHART (Section 01 replacement)
───────────────────────────────────────────────────────────── */
#annualChart {
    width: 100%;
    aspect-ratio: 1000 / 520;
    position: relative;
    border-bottom: 1px solid rgba(255,255,255,.07);
    margin-bottom: 1rem;
}
#annualChart svg {
    display: block;
    width: 100%;
    height: 100%;
}
.net-bubble {
    transition: fill-opacity .25s;
    cursor: pointer;
}
.sys-bubble-key {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: .5rem;
    margin-bottom: 2rem;
}
.sys-bubble-key-label {
    font-family: "DM Mono", monospace;
    font-size: .48rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.18);
}

/* ─────────────────────────────────────────────────────────────
   RADIAL BIRD FREQUENCY (Section 03 upgrade)
───────────────────────────────────────────────────────────── */
.bird-card-radial-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .4rem 0;
}
.bird-card-radial-svg {
    flex-shrink: 0;
}
.bird-card-stat-block {
    display: flex;
    flex-direction: column;
    gap: .2rem;
}
.bird-card-stat-freq {
    font-family: "Montreal", sans-serif;
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: -.03em;
    line-height: 1;
}
.bird-card-stat-label {
    font-family: "DM Mono", monospace;
    font-size: .46rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(255,255,255,.2);
}
.bird-card-stat-peak {
    font-family: "DM Mono", monospace;
    font-size: .55rem;
    line-height: 1.5;
    color: rgba(255,255,255,.28);
    margin-top: .2rem;
}

/* ─────────────────────────────────────────────────────────────
   RICE VISUAL TIMELINE (Section 04 replacement)
───────────────────────────────────────────────────────────── */
.rice-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 2rem;
}
.rice-entry {
    display: grid;
    grid-template-columns: 60px 56px 1fr;
    gap: 1.2rem;
    align-items: start;
    padding: 1.2rem 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
    transition: background .2s;
}
.rice-entry:hover {
    background: rgba(255,255,255,.015);
    margin: 0 -.8rem;
    padding-left: .8rem;
    padding-right: .8rem;
}
.rice-year {
    font-family: "Montreal", sans-serif;
    font-size: 1.4rem;
    font-weight: 400;
    letter-spacing: -.04em;
    color: white;
    padding-top: .15rem;
}
.rice-water-tag {
    font-family: "DM Mono", monospace;
    font-size: .46rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: .22rem .5rem;
    border: 1px solid;
    align-self: start;
    margin-top: .4rem;
    white-space: nowrap;
}
.rice-wet { color: var(--lightblue); border-color: var(--lightblue); }
.rice-dry { color: rgba(255,255,255,.25); border-color: rgba(255,255,255,.12); }
.rice-content {
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.rice-bar-wrap {
    height: 6px;
    background: rgba(255,255,255,.05);
    border-radius: 3px;
    overflow: visible;
    position: relative;
    margin-top: .6rem;
}
.rice-bar-fill {
    height: 100%;
    border-radius: 3px;
    position: relative;
    min-width: 4px;
    transition: width .8s cubic-bezier(.22,1,.36,1);
}
.rice-bar-dot {
    position: absolute;
    right: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1.5px solid var(--blackblue);
}
.rice-nums {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-wrap: wrap;
}
.rice-acres {
    font-family: "Montreal", sans-serif;
    font-size: 1rem;
    color: var(--olivegreen);
    letter-spacing: -.02em;
}
.rice-divider {
    color: rgba(255,255,255,.15);
    font-family: "DM Mono", monospace;
}
.rice-tons, .rice-value {
    font-family: "DM Mono", monospace;
    font-size: .62rem;
    letter-spacing: .04em;
    color: rgba(255,255,255,.35);
}
.rice-context {
    font-family: "DM Mono", monospace;
    font-size: .6rem;
    line-height: 1.72;
    color: rgba(255,255,255,.28);
    max-width: 520px;
}

/* CONNECTION */
.sys-connection { border-bottom: none; }
.sys-connection-grid { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 0; align-items: center; margin-bottom: 2.5rem; }
.sys-conn-arrow { font-family: "Montreal", sans-serif; font-size: 1.4rem; color: rgba(255,255,255,.18); padding: 0 1.2rem; text-align: center; flex-shrink: 0; }
.sys-conn-card { padding: 2rem 1.6rem; border: 1px solid rgba(255,255,255,.06); display: flex; flex-direction: column; gap: .8rem; align-self: stretch; }
.sys-conn-flood { border-top: 2px solid var(--lightblue); }
.sys-conn-birds { border-top: 2px solid var(--pink); }
.sys-conn-rice  { border-top: 2px solid var(--olivegreen); }
.sys-conn-num { font-family: "DM Mono", monospace; font-size: .48rem; letter-spacing: .2em; color: rgba(255,255,255,.18); }
.sys-conn-card h3 { font-family: "Montreal", sans-serif; font-size: .95rem; font-weight: 400; text-transform: lowercase; letter-spacing: -.01em; color: white; line-height: 1.25; }
.sys-conn-card p { font-family: "DM Mono", monospace; font-size: .64rem; line-height: 1.78; color: rgba(255,255,255,.36); flex: 1; }
.sys-conn-tag { font-family: "DM Mono", monospace; font-size: .46rem; letter-spacing: .2em; text-transform: uppercase; align-self: flex-start; margin-top: auto; padding-top: .8rem; }
.sys-conn-flood .sys-conn-tag { color: var(--lightblue); }
.sys-conn-birds .sys-conn-tag { color: var(--pink); }
.sys-conn-rice  .sys-conn-tag { color: var(--olivegreen); }
.sys-connection-note { padding: 1.8rem 2.2rem; border: 1px solid rgba(255,255,255,.06); background: rgba(255,255,255,.02); }
.sys-connection-note p { font-family: "DM Mono", monospace; font-size: .72rem; line-height: 1.82; color: rgba(255,255,255,.48); }

/* DATA NOTE */
.sys-data-note { font-family: "DM Mono", monospace; font-size: .55rem; letter-spacing: .05em; color: rgba(255,255,255,.2); line-height: 1.75; margin-top: .5rem; }
.sys-data-note a { color: var(--lightblue); text-decoration: underline; text-underline-offset: 3px; }

/* SYSTEMS FOOTER */
.sys-footer { padding: 4rem 6vw; background: rgba(0,0,0,.25); }
.sys-footer-rule { height: 1px; background: rgba(255,255,255,.07); margin-bottom: 2.5rem; }
.sys-footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 4rem; align-items: start; }
.sys-footer-label { font-family: "DM Mono", monospace; font-size: .5rem; letter-spacing: .2em; text-transform: uppercase; color: rgba(255,255,255,.22); margin-bottom: 1rem; }
.sys-footer-sources ul { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.sys-footer-sources a { font-family: "DM Mono", monospace; font-size: .58rem; letter-spacing: .03em; color: rgba(255,255,255,.28); text-decoration: none; line-height: 1.6; transition: color .2s; }
.sys-footer-sources a:hover { color: var(--lightblue); }
.sys-footer-nav { display: flex; flex-direction: column; gap: .8rem; align-items: flex-end; }
.sys-footer-nav a { font-family: "Montreal", sans-serif; font-size: .82rem; color: rgba(255,255,255,.25); text-decoration: none; transition: color .2s; white-space: nowrap; }
.sys-footer-nav a:hover { color: var(--pink); }


/* ─────────────────────────────────────────────────────────────
   8. OBSERVATIONS PAGE
───────────────────────────────────────────────────────────── */

body.observations-page {
    overflow: hidden;
    height: 100%;
    background: var(--blackblue);
    color: var(--ink);
}
html:has(body.observations-page) { overflow: hidden; height: 100%; }

.obs-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 300;
    height: 48px;
    background: var(--blackblue);
    border-bottom: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    padding: 0 4vw;
    gap: 2vw;
}
.oh-accent {
    font-family: "DM Mono", monospace;
    font-size: .72rem;
    letter-spacing: .1em;
    color: var(--olivegreen);
    white-space: nowrap;
}
.oh-meta {
    font-family: "DM Mono", monospace;
    font-size: .7rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ink-dim);
    white-space: nowrap;
}
.oh-divider { width: 1px; height: 10px; background: var(--border-strong); flex-shrink: 0; }
.oh-spacer { flex: 1; }
.oh-back {
    font-family: "DM Mono", monospace;
    font-size: .7rem;
    letter-spacing: .08em;
    color: var(--ink-dim);
    text-decoration: none;
    padding: .5rem 0;
    transition: color .2s;
}
.oh-back:hover { color: var(--pink); }
.oh-index-btn {
    display: none;
    background: none;
    border: 1px solid var(--border-strong);
    color: var(--ink-dim);
    font-family: "DM Mono", monospace;
    font-size: .68rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: .3rem .65rem;
    cursor: pointer;
    transition: color .2s, border-color .2s;
    white-space: nowrap;
}
.oh-index-btn:hover { color: var(--olivegreen); border-color: var(--olivegreen); }

/* MAIN LAYOUT */
.obs-main {
    position: fixed;
    inset: 48px 0 0 0;
    display: grid;
    grid-template-columns: 220px 1fr;
}

/* INDEX SIDEBAR */
.obs-index {
    background: var(--surface);
    border-right: 1px solid var(--border-strong);
    display: flex;
    flex-direction: column;
    padding: 1.4rem 0;
    overflow: hidden;
    position: relative;
}
/* torn edge */
.obs-index::after {
    content: '';
    position: absolute;
    top: 0; right: -8px; bottom: 0;
    width: 16px;
    background: var(--surface);
    z-index: 5;
    clip-path: polygon(
        0 0,100% 2%,0 5%,100% 9%,0 12%,100% 16%,0 20%,100% 24%,0 28%,
        100% 32%,0 36%,100% 40%,0 44%,100% 48%,0 52%,100% 56%,0 60%,
        100% 64%,0 68%,100% 72%,0 76%,100% 80%,0 84%,100% 88%,0 92%,
        100% 96%,0 100%,0 0
    );
    pointer-events: none;
}
.index-label {
    font-family: "DM Mono", monospace;
    font-size: .62rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--pink);
    opacity: .8;
    padding: 0 1.4rem .9rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: .5rem;
}
.index-nav { flex: 1; overflow-y: auto; padding: .3rem 0; -webkit-overflow-scrolling: touch; }
.index-link {
    display: flex;
    align-items: baseline;
    gap: .65rem;
    padding: .7rem 1.4rem;
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: background .15s, border-color .2s;
    -webkit-tap-highlight-color: transparent;
}
.index-link:hover { background: rgba(255,255,255,.04); }
.index-link.active { border-left-color: var(--olivegreen); background: rgba(189,165,67,.08); }
.il-num { font-family: "DM Mono", monospace; font-size: .6rem; color: var(--ink-faint); flex-shrink: 0; transition: color .2s; }
.index-link.active .il-num { color: var(--olivegreen); }
.il-title { font-family: "DM Mono", monospace; font-size: .68rem; letter-spacing: .04em; color: var(--ink-dim); line-height: 1.4; transition: color .2s; }
.index-link.active .il-title,
.index-link:hover .il-title { color: var(--ink); }
.index-meta { padding: 1rem 1.4rem 0; border-top: 1px solid var(--border); margin-top: .5rem; }
.im-row { display: flex; justify-content: space-between; padding: .28rem 0; border-bottom: 1px solid rgba(255,255,255,.05); }
.im-row:last-child { border-bottom: none; }
.im-k { font-size: .58rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); font-family: "DM Mono", monospace; }
.im-v { font-size: .65rem; color: var(--ink-dim); text-align: right; font-family: "DM Mono", monospace; }

/* SCROLL AREA */
.obs-scroll { overflow-y: auto; -webkit-overflow-scrolling: touch; padding: 2.5rem 3vw 4rem; scroll-behavior: smooth; }

/* ENTRY */
.entry { max-width: 680px; margin: 0 auto; }
.entry-header { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; }
.entry-num { font-family: "DM Mono", monospace; font-size: 2.8rem; line-height: 1; color: var(--ink); opacity: .1; letter-spacing: -.04em; flex-shrink: 0; user-select: none; }
.entry-meta-block { display: flex; flex-direction: column; gap: .2rem; padding-top: .3rem; flex: 1; }
.entry-date { font-family: "DM Mono", monospace; font-size: .7rem; letter-spacing: .08em; color: var(--ink); opacity: .75; }
.entry-weather { font-family: "DM Mono", monospace; font-size: .62rem; letter-spacing: .06em; color: var(--ink-dim); font-style: italic; }
.entry-tag {
    font-family: "DM Mono", monospace;
    font-size: .58rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--tag-color, var(--olivegreen));
    border: 1px solid var(--tag-color, var(--olivegreen));
    padding: .22rem .55rem;
    opacity: .85;
    white-space: nowrap;
    align-self: flex-start;
    margin-top: .35rem;
    transform: rotate(.6deg);
}
.entry-title { font-family: "Montreal", sans-serif; font-size: 2rem; color: var(--ink); letter-spacing: -.03em; line-height: 1.05; margin-bottom: 1.2rem; }
.entry-body p { font-family: "DM Mono", monospace; font-size: .8rem; line-height: 1.85; color: var(--ink); opacity: .8; margin-bottom: 1rem; letter-spacing: .02em; }
.entry-body p:last-child { margin-bottom: 0; }
.entry-aside {
    margin: 1.2rem 0;
    padding: .9rem 1rem .9rem 1.2rem;
    border-left: 2px solid var(--pink);
    background: rgba(240,104,150,.06);
    position: relative;
    transform: rotate(-.2deg);
}
.entry-aside::before {
    content: '';
    position: absolute;
    top: -5px; right: 16px;
    width: 22px; height: 9px;
    background: var(--pink);
    opacity: .4;
    clip-path: polygon(0 0, 100% 0, 88% 100%, 12% 100%);
}
.ea-label { display: block; font-family: "DM Mono", monospace; font-size: .58rem; letter-spacing: .2em; text-transform: uppercase; color: var(--pink); margin-bottom: .45rem; }
.entry-aside p { font-size: .72rem !important; opacity: .7 !important; margin-bottom: 0 !important; font-style: italic; }
.entry-pullquote {
    margin: 1.4rem 0;
    padding: 1rem 0 1rem 1.4rem;
    border-left: 3px solid var(--olivegreen);
    font-family: "Montreal", sans-serif;
    font-size: 1.05rem;
    color: var(--olivegreen);
    line-height: 1.5;
    letter-spacing: -.01em;
    position: relative;
}
.entry-pullquote::before {
    content: '"';
    position: absolute;
    top: -.5rem; left: -.1rem;
    font-size: 3rem;
    color: var(--olivegreen);
    opacity: .2;
    line-height: 1;
    font-family: "Montreal", sans-serif;
}
.entry-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1.4rem; }
.etag {
    font-family: "DM Mono", monospace;
    font-size: .58rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ink-faint);
    border: 1px solid var(--border);
    padding: .2rem .5rem;
}
.entry-divider {
    max-width: 680px;
    margin: 2.5rem auto;
    height: 1px;
    background: var(--border);
    position: relative;
}
.entry-divider::after {
    content: '✦';
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    background: var(--blackblue);
    padding: 0 .8rem;
    font-size: .65rem;
    color: var(--ink-faint);
}

.observation-photos {
  gap: 1rem;
}

.observation-photos img {
  width: 100%;
}

.observation-photos figure {
  margin: 0;
}

.observation-photos figcaption {
  font-size: 0.8rem;
  margin-top: 0.3rem;
  color: #555;
}

.film-caption {
  font-style: italic;
  letter-spacing: 0.02em;
}


/* MOBILE INDEX DRAWER */
.mob-index-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,27,61,.7);
    z-index: 400;
    opacity: 0;
    transition: opacity .3s;
}
.mob-index-overlay.visible { opacity: 1; }
.mob-index-drawer {
    display: none;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--surface);
    border-top: 1px solid var(--border-strong);
    z-index: 500;
    padding: 0 0 2rem;
    transform: translateY(100%);
    transition: transform .4s cubic-bezier(0.22, 1, 0.36, 1);
    max-height: 70vh;
    overflow-y: auto;
}
.mob-index-drawer.open { transform: translateY(0); }
.mob-drawer-handle { width: 36px; height: 4px; background: var(--border-strong); border-radius: 2px; margin: 12px auto 16px; }
.mob-index-drawer .index-label { padding: 0 1.4rem .8rem; }
.mob-index-drawer .index-link { padding: .85rem 1.4rem; min-height: 48px; }

/* FADE IN */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.obs-header { animation: fadeUp .4s ease both; }
.obs-index  { animation: fadeUp .5s ease .05s both; }
.obs-scroll { animation: fadeUp .6s ease .1s both; }


/* ─────────────────────────────────────────────────────────────
   9. RESPONSIVE — mobile & projector
───────────────────────────────────────────────────────────── */

/* ── PROJECTOR / LARGE SCREEN (≥1600px) ──────────────────── */
@media (min-width: 1600px) {
    /* Home */
    .title-block h1  { font-size: 2.2rem; }
    .begin-link      { font-size: 2.2rem; }
    .menu a          { font-size: 2rem; }

    /* Context */
    .ctx-hero-title   { font-size: 10rem; }
    .ctx-hero-sub     { font-size: 1.1rem; max-width: 640px; }
    .ctx-text-col p   { font-size: 1.1rem; }
    .ctx-lede         { font-size: 1.3rem !important; }

    /* Systems */
    .sys-hero-title  { font-size: 8rem; }
    .sys-hero-body   { font-size: .95rem; }
    .sys-section-title { font-size: 3.2rem; }
    .sys-section-desc  { font-size: .85rem; }

    /* Observations */
    .entry-title { font-size: 2.4rem; }
    .entry-body p { font-size: .92rem; }

    /* Map panel */
    .map-layout { grid-template-columns: 340px 1fr; }
    .panel-title { font-size: 3.5rem; }
}

/* ── TABLET (≤900px) ─────────────────────────────────────── */
@media (max-width: 900px) {
    /* Context */
    .ctx-section { grid-template-columns: 1fr; gap: 1rem; }
    .ctx-section-num { text-align: left; padding-top: 0; }
    .ctx-stats { grid-template-columns: 1fr 1fr; }
    .ctx-stat { border-bottom: 1px solid rgba(255,255,255,.06); }
    .ctx-twocol { grid-template-columns: 1fr; }
    .ctx-twocol-item:nth-child(even) { padding-left: 0; border-left: none; }
    .ctx-nav-sections { display: none; }

    /* Systems */
    .sys-hero { grid-template-columns: 1fr; }
    .sys-wheel-wrap { grid-template-columns: 1fr; }
    .sys-connection-grid { grid-template-columns: 1fr; }
    .sys-conn-arrow { display: none; }
    .sys-footer-inner { grid-template-columns: 1fr; }
    .sys-footer-nav { align-items: flex-start; }

    /* Observations */
    .obs-main { grid-template-columns: 190px 1fr; }
    .oh-meta { display: none; }
    .oh-divider { display: none; }
    .entry-title { font-size: 1.7rem; }
    .obs-scroll { padding: 2rem 2.5vw 3rem; }

    /* Map */
    .mh-item.hide-mobile,
    .mh-divider.hide-mobile { display: none; }
}

/* ── MOBILE (≤600px) ─────────────────────────────────────── */
@media (max-width: 600px) {
    /* Shared header */
    .ff-header { padding: 0 5vw; gap: 1.5rem; }
    .ff-header-meta { display: none; }

    /* Context */
    .ctx-hero { padding-top: 14vh; }
    .ctx-hero-title { font-size: clamp(3rem, 18vw, 5rem); }
    .ctx-hero-sub { font-size: .85rem; }
    .ctx-section { padding: 4rem 0; gap: .8rem; }
    .ff-footer-inner { flex-direction: column; text-align: center; }
    .ff-footer-nav { flex-direction: column; gap: 1rem; align-items: center; }

    /* Systems */
    .sys-controls { flex-direction: column; align-items: flex-start; }
    .sys-toggles { flex-direction: column; width: 100%; }
    .sys-chart { gap: .4rem; }
    .sys-bar { max-width: 16px; }
    .sys-section { padding: 3.5rem 5vw; }
    .toggle-desc { display: none; }
    .sys-legend-unit { display: none; }

    /* Observations */
    .obs-main { grid-template-columns: 1fr; }
    .obs-index { display: none; }
    .oh-index-btn { display: block; }
    .mob-index-overlay, .mob-index-drawer { display: block; }
    .obs-scroll { padding: 1.5rem 5vw 3rem; }
    .entry-num { font-size: 2rem; }
    .entry-title { font-size: 1.5rem; }
    .entry-body p { font-size: .78rem; }
    .entry-pullquote { font-size: .92rem; }
    .obs-header { padding: 0 5vw; gap: 2.5vw; }

    /* Map */
    .panel-toggle-btn { display: flex; }
    .map-layout { grid-template-columns: 1fr; }
    .map-panel {
        position: absolute;
        bottom: 0; left: 0; right: 0;
        top: auto;
        border-right: none;
        border-top: 1px solid var(--grid-strong);
        max-height: 60vh;
        transform: translateY(100%);
        transition: transform .4s cubic-bezier(.22,1,.36,1);
        z-index: 50;
        overflow-y: auto;
        padding-top: .5rem;
    }
    .map-panel.panel-open { transform: translateY(0); }
    .panel-drag-handle { display: block; }
    .map-right { position: absolute; inset: 0; }

    /* Home */
    #landing.state-open {
        flex-direction: column;
        justify-content: center;
        gap: 3rem;
        padding: 0 8vw;
    }
    #landing.state-open .title-block { transform: none; }
    .title-block h1 { font-size: 1.4rem; }
    .menu a { font-size: 1.3rem; }
    .begin-link { font-size: 1.5rem; }
}

/* ── LANDSCAPE PHONE ─────────────────────────────────────── */
@media (max-width: 900px) and (max-height: 480px) {
    .obs-main { grid-template-columns: 170px 1fr; }
    .obs-index { padding: .8rem 0; }
    .index-meta { display: none; }
    .obs-scroll { padding: 1.2rem 2vw 2rem; }
    .entry-title { font-size: 1.4rem; }
    .sys-section { padding: 2.5rem 4vw; }
    .sys-hero { padding: 4vh 4vw; }
}
/* ════════════════════════════════════════════════════════════════
   BIRD AUDIO PLAYER
════════════════════════════════════════════════════════════════ */

.bird-audio-wrap {
    display: flex;
    align-items: center;
    gap: .9rem;
    margin-top: auto;
    padding-top: .9rem;
    border-top: 1px solid rgba(255,255,255,.07);
    flex-shrink: 0;
    min-width: 0;
}

.bird-audio-btn {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    color: rgba(255,255,255,.6);
    padding: .38rem .65rem .38rem .55rem;
    cursor: pointer;
    transition: background .2s, border-color .2s, color .2s;
    flex-shrink: 0;
    line-height: 1;
}
.bird-audio-btn:hover {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.22);
    color: white;
}
.bird-audio-btn.playing {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.2);
    color: white;
}

.bird-audio-icon { display: flex; align-items: center; flex-shrink: 0; }
.icon-play  { display: block; }
.icon-pause { display: none; }
.bird-audio-btn.playing .icon-play  { display: none; }
.bird-audio-btn.playing .icon-pause { display: block; }

.bird-audio-bars {
    display: flex;
    align-items: center;
    gap: 2px;
    height: 16px;
    flex-shrink: 0;
}
.bird-audio-bars .bar {
    display: block;
    width: 2px;
    border-radius: 1px;
    background: rgba(255,255,255,.25);
    transition: background .3s;
}
.bar.b1 { height: 5px; }
.bar.b2 { height: 9px; }
.bar.b3 { height: 13px; }
.bar.b4 { height: 7px; }
.bar.b5 { height: 4px; }

.bird-audio-btn.playing .bar {
    animation-duration: .9s;
    animation-iteration-count: infinite;
    animation-timing-function: ease-in-out;
    animation-direction: alternate;
}
.bird-audio-btn.playing .bar.b1 { animation-name: xcwave1; animation-delay: 0s; }
.bird-audio-btn.playing .bar.b2 { animation-name: xcwave2; animation-delay: .12s; }
.bird-audio-btn.playing .bar.b3 { animation-name: xcwave3; animation-delay: .06s; }
.bird-audio-btn.playing .bar.b4 { animation-name: xcwave2; animation-delay: .18s; }
.bird-audio-btn.playing .bar.b5 { animation-name: xcwave1; animation-delay: .09s; }

@keyframes xcwave1 { from { height: 3px; } to { height: 10px; } }
@keyframes xcwave2 { from { height: 5px; } to { height: 15px; } }
@keyframes xcwave3 { from { height: 8px; } to { height: 16px; } }

.bird-audio-meta {
    display: flex;
    flex-direction: column;
    gap: .2rem;
    min-width: 0;
    overflow: hidden;
}
.bird-audio-id {
    font-family: "DM Mono", monospace;
    font-size: .52rem;
    letter-spacing: .1em;
    color: rgba(255,255,255,.45);
    text-decoration: none;
    transition: color .2s;
}
.bird-audio-id:hover { color: rgba(255,255,255,.8); }
.bird-audio-credit {
    font-family: "DM Mono", monospace;
    font-size: .46rem;
    letter-spacing: .03em;
    color: rgba(255,255,255,.2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.bird-xc-link,
.bird-cc-link {
    color: rgba(255,255,255,.3);
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-color: rgba(255,255,255,.12);
    transition: color .2s;
}
.bird-xc-link:hover,
.bird-cc-link:hover { color: rgba(255,255,255,.65); }

/* ─────────────────────────────────────────────────────────────
   IDLE TIMEOUT MODAL — all pages
───────────────────────────────────────────────────────────── */
#idle-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(15, 27, 61, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    align-items: center;
    justify-content: center;
}
#idle-overlay.idle-visible {
    display: flex;
    animation: idle-fade-in 0.35s ease forwards;
}
@keyframes idle-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}
#idle-modal {
    background: var(--blackblue, #0f1b3d);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 4px;
    padding: 2.4rem 2.8rem 2rem;
    text-align: center;
    max-width: 320px;
    width: 88%;
    animation: idle-slide-up 0.35s ease forwards;
    box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
@keyframes idle-slide-up {
    from { transform: translateY(18px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}
.idle-icon {
    font-size: 1.4rem;
    font-variation-settings: 'wght' 300;
    color: var(--pink, #f06896);
    margin-bottom: .8rem;
    opacity: .8;
}
.idle-heading {
    font-family: "DM Mono", monospace;
    font-size: 1.15rem;
    color: var(--whitebeige, #fffdf2);
    margin: 0 0 .5rem;
    letter-spacing: .04em;
}
.idle-sub {
    font-family: "DM Mono", monospace;
    font-size: .78rem;
    color: rgba(255,253,242,.5);
    margin: 0 0 1.6rem;
    letter-spacing: .03em;
}
#idle-count {
    color: var(--pink, #f06896);
    font-weight: 600;
}
#idle-stay {
    display: inline-block;
    font-family: "DM Mono", monospace;
    font-size: .78rem;
    letter-spacing: .08em;
    text-transform: lowercase;
    color: var(--blackblue, #0f1b3d);
    background: var(--whitebeige, #fffdf2);
    border: none;
    border-radius: 2px;
    padding: .55rem 1.4rem;
    cursor: pointer;
    transition: background .2s, color .2s;
}
#idle-stay:hover {
    background: var(--olivegreen, #bda543);
    color: var(--blackblue, #0f1b3d);
}

/* idle-icon override: size the Material Symbol raven correctly */
.idle-icon .material-symbols-outlined {
    font-size: 2.4rem;
    display: block;
}