:root {
    --bg: #0a0a0a;
    --bg-2: #111111;
    --fg: #f5f5f5;
    --muted: #8a8a8a;
    --rule: #1f1f1f;
    --max: 1100px;

    /* Class colors */
    --c-bud: #65d697;
    --c-flower: #c084fc;
    --c-green_fruit: #facc15;
    --c-red_fruit: #f87171;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg);
    color: var(--fg);
    font-family: 'Avenir', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

h1, h2, h3 {
    font-weight: 400;
    letter-spacing: -0.01em;
    margin: 0;
}

/* ---------- HERO ---------- */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 32px 24px 60px;
    position: relative;
    text-align: center;
}

.eyebrow {
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    margin: 0 0 14px;
    font-weight: 400;
}

.hero h1 {
    font-size: clamp(2.2rem, 4.5vw, 3rem);
    font-weight: 300;
    line-height: 1.05;
    margin: 0;
}

.tagline {
    max-width: 600px;
    margin: 14px auto 0;
    color: #cfcfcf;
    font-size: 0.9rem;
    font-weight: 300;
    line-height: 1.5;
}

.stage {
    margin-top: 22px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.stage-frame {
    position: relative;
    width: min(420px, 75vw);
    aspect-ratio: 1 / 1;
    border: 1px solid var(--rule);
    overflow: hidden;
    background: #000;
}

.stage-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.45s ease;
}

.stage-frame svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
    transition: opacity 0.45s ease;
}

.legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 16px;
    font-size: 0.78rem;
    color: #d0d0d0;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 2px 0;
}

.chip i {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.chip[data-cls="bud"] i { background: var(--c-bud); }
.chip[data-cls="flower"] i { background: var(--c-flower); }
.chip[data-cls="green_fruit"] i { background: var(--c-green_fruit); }
.chip[data-cls="red_fruit"] i { background: var(--c-red_fruit); }

/* ---------- SVG BOX STYLES ---------- */

.detection {
    opacity: 0;
    transform-origin: center;
    transform-box: fill-box;
    animation: detPop 320ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.detection.static {
    opacity: 1;
    animation: none;
}

.bbox {
    fill: none;
    stroke-width: 4;
}

.bbox-chip {
    rx: 2;
    stroke: rgba(0,0,0,0.25);
    stroke-width: 0.5;
}

.bbox-text {
    font-family: 'Inter', 'Avenir', sans-serif;
    font-size: 22px;
    font-weight: 600;
    fill: #0a0a0a;
    dominant-baseline: alphabetic;
}

.bbox[data-cls="bud"] { stroke: var(--c-bud); }
.bbox[data-cls="flower"] { stroke: var(--c-flower); }
.bbox[data-cls="green_fruit"] { stroke: var(--c-green_fruit); }
.bbox[data-cls="red_fruit"] { stroke: var(--c-red_fruit); }

.bbox-chip[data-cls="bud"] { fill: var(--c-bud); }
.bbox-chip[data-cls="flower"] { fill: var(--c-flower); }
.bbox-chip[data-cls="green_fruit"] { fill: var(--c-green_fruit); }
.bbox-chip[data-cls="red_fruit"] { fill: var(--c-red_fruit); }

@keyframes detPop {
    0%   { opacity: 0; transform: scale(0.7); }
    60%  { opacity: 1; transform: scale(1.04); }
    100% { opacity: 1; transform: scale(1); }
}

/* ---------- SCROLL CUE ---------- */

.scroll-cue {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.55);
    transition: color 0.25s ease;
}

.scroll-cue:hover { color: #fff; }

.scroll-label {
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

/* ---------- MAIN ---------- */

main {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 80px 0;
    border-top: 1px solid var(--rule);
}

section:first-child {
    border-top: none;
}

.prose h2 {
    font-size: 1.6rem;
    margin: 0 0 24px;
    font-weight: 400;
}

.prose p {
    font-size: 1rem;
    color: #dcdcdc;
    margin: 0 0 18px;
    max-width: 720px;
    line-height: 1.7;
    font-weight: 300;
}

.prose em { color: #f5f5f5; font-style: italic; }
.prose strong { color: #f5f5f5; font-weight: 500; }

.caption {
    font-size: 0.85rem !important;
    color: var(--muted) !important;
    margin-top: 16px !important;
}

/* ---------- STATS ---------- */

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-num {
    font-size: 2.4rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1;
}

.stat-label {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.4;
}

/* ---------- METRICS ---------- */

.metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
    padding: 28px;
    border: 1px solid var(--rule);
    background: var(--bg-2);
}

.metric {
    text-align: center;
}

.metric-val {
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 8px;
}

.metric-label {
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.4;
}

/* ---------- CHARTS ---------- */

.chart {
    margin: 32px 0 8px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.chart-canvas {
    width: 100%;
    background: transparent;
}

.chart-canvas .phen-chart {
    display: block;
    width: 100%;
    height: auto;
    overflow: visible;
}

.chart figcaption {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.5;
    text-align: left;
    font-weight: 300;
    padding: 0;
    max-width: 720px;
}

/* SVG element styles */
.phen-chart .grid {
    stroke: #232323;
    stroke-width: 1;
    shape-rendering: crispEdges;
}
.phen-chart .grid-base { stroke: #3a3a3a; }
.phen-chart .grid-vert { stroke: #1a1a1a; }

.phen-chart .axis-label {
    font-family: 'Inter', 'Avenir', sans-serif;
    font-size: 11px;
    fill: #8a8a8a;
    font-weight: 400;
}
.phen-chart .axis-month {
    font-size: 12px;
    letter-spacing: 0.04em;
    text-anchor: middle;
}

.phen-chart .series-label {
    font-family: 'Inter', 'Avenir', sans-serif;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.01em;
}
.phen-chart .series-sub {
    font-family: 'Inter', 'Avenir', sans-serif;
    font-size: 10.5px;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    fill-opacity: 0.75;
}
.phen-chart .series-label-sm {
    font-family: 'Inter', 'Avenir', sans-serif;
    font-size: 11px;
    font-weight: 600;
}
.phen-chart .panel-title {
    font-family: 'Avenir', 'Inter', sans-serif;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
}
.phen-chart .annotation {
    font-family: 'Inter', 'Avenir', sans-serif;
    font-size: 11.5px;
    fill: #cfcfcf;
    font-style: italic;
}

/* ---------- GALLERY ---------- */

.gallery h2 {
    font-size: 1.6rem;
    margin: 0 0 12px;
    font-weight: 400;
}

.gallery-intro {
    color: #cfcfcf;
    font-size: 0.95rem;
    font-weight: 300;
    margin: 0 0 32px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-card {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-frame {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border: 1px solid var(--rule);
    background: #000;
}

.card-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.card-frame svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
}

.gallery-card figcaption {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.45;
}

/* ---------- LINKS ---------- */

.links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.link-card {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 4px 12px;
    padding: 22px 24px;
    border: 1px solid var(--rule);
    background: var(--bg-2);
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.link-card:hover {
    border-color: #444;
    transform: translateY(-1px);
}

.link-eyebrow {
    grid-column: 1;
    grid-row: 1;
    color: var(--muted);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.link-title {
    grid-column: 1;
    grid-row: 2;
    font-size: 1rem;
}

.link-arrow {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
    color: var(--muted);
    font-size: 1.2rem;
}

/* ---------- FOOTER ---------- */

footer {
    max-width: var(--max);
    margin: 0 auto;
    padding: 40px 24px 60px;
    color: var(--muted);
    font-size: 0.8rem;
    text-align: center;
    border-top: 1px solid var(--rule);
    margin-top: 40px;
}

/* ---------- RESPONSIVE ---------- */

@media (max-width: 820px) {
    .stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .metrics { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; }
    .links { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .stage-frame { width: 92vw; }
    .hero { padding: 40px 16px 80px; }
    .stat-num { font-size: 2rem; }
    section { padding: 60px 0; }
}