/* ==========================================================
   footprint.market — biomorphic tidepool bazaar
   palette: #d8e7e0 #c2d6cb #e8d8b8 #a8554a #f1ece1 #5c7167 #1e2823 #7a8b80
   fonts: Cormorant Garamond, IBM Plex Sans, IBM Plex Sans Condensed, DM Mono
   ========================================================== */

:root {
    --brackish-jade: #d8e7e0;
    --deeper-jade: #c2d6cb;
    --kelp-ink: #1e2823;
    --mineral-grey-green: #7a8b80;
    --sand-line: #e8d8b8;
    --vermillion: #a8554a;
    --muted-seaweed: #5c7167;
    --dried-agar: #f1ece1;

    --font-display: "Cormorant Garamond", "Lora", Georgia, serif;
    --font-body: "IBM Plex Sans", "Inter", system-ui, sans-serif;
    --font-cond: "IBM Plex Sans Condensed", "IBM Plex Sans", sans-serif;
    --font-mono: "DM Mono", "Space Mono", "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    width: 100%;
    overflow-x: hidden;
}

html { scroll-behavior: smooth; }

body {
    background: var(--brackish-jade);
    color: var(--kelp-ink);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.74;
    letter-spacing: -0.003em;
    cursor: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
}

a, button { cursor: none; }

.svg-defs { position: absolute; width: 0; height: 0; pointer-events: none; }

/* paper-grain overlay */
#paper-grain-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9000;
    mix-blend-mode: multiply;
    opacity: 0.5;
    background-image:
        radial-gradient(circle at 17% 23%, rgba(30,40,35,0.06) 0 0.5px, transparent 1.5px),
        radial-gradient(circle at 47% 71%, rgba(30,40,35,0.05) 0 0.5px, transparent 1.5px),
        radial-gradient(circle at 83% 31%, rgba(30,40,35,0.06) 0 0.5px, transparent 1.5px),
        radial-gradient(circle at 31% 89%, rgba(30,40,35,0.04) 0 0.5px, transparent 1.5px),
        radial-gradient(circle at 67% 11%, rgba(30,40,35,0.05) 0 0.5px, transparent 1.5px);
    background-size: 240px 240px, 320px 320px, 280px 280px, 360px 360px, 220px 220px;
}

/* =====================================================
   Cursor creature
   ===================================================== */
#cursor-creature {
    position: fixed;
    top: 0; left: 0;
    width: 48px; height: 48px;
    pointer-events: none;
    transform: translate3d(-100px, -100px, 0);
    z-index: 10000;
    will-change: transform;
    mix-blend-mode: multiply;
}
#cursor-creature svg { display: block; }

#tide-rings {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 8500;
}
.tide-ring {
    position: absolute;
    width: 14px; height: 14px;
    border: 1px solid var(--deeper-jade);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.6;
    pointer-events: none;
    animation: tide-expand 1800ms cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}
@keyframes tide-expand {
    0%   { transform: translate(-50%, -50%) scale(0.4); opacity: 0.6; border-color: var(--deeper-jade); }
    100% { transform: translate(-50%, -50%) scale(8.0); opacity: 0;   border-color: var(--brackish-jade); }
}

/* =====================================================
   Chambers — base
   ===================================================== */
#lagoon { position: relative; width: 100%; }

.chamber {
    position: relative;
    width: 100%;
    overflow: hidden;
    isolation: isolate;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 1400ms cubic-bezier(0.4, 0, 0.2, 1),
                transform 1400ms cubic-bezier(0.4, 0, 0.2, 1);
}
.chamber.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.chamber-numeral {
    position: absolute;
    top: 32px;
    left: 36px;
    font-family: var(--font-cond);
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--mineral-grey-green);
    z-index: 5;
    opacity: 0.78;
}

.cormorant-italic {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    letter-spacing: -0.012em;
}
.vermillion { color: var(--vermillion); }
.mono {
    font-family: var(--font-mono);
    font-weight: 400;
    color: var(--muted-seaweed);
    opacity: 0.78;
    font-size: 13px;
    letter-spacing: 0.02em;
}

/* =====================================================
   Chamber 1 — The Surface Tension
   ===================================================== */
.chamber-1 {
    height: 100vh;
    min-height: 720px;
    background: var(--brackish-jade);
    display: flex;
    align-items: center;
    justify-content: center;
}

.surface-blob {
    position: relative;
    width: 64vw;
    max-width: 820px;
    aspect-ratio: 6 / 5.2;
    display: flex;
    align-items: center;
    justify-content: center;
    will-change: transform;
    filter: drop-shadow(0 36px 60px rgba(30, 40, 35, 0.12));
}
.surface-blob-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}
.breathing-blob {
    transform-origin: 50% 50%;
    transform-box: fill-box;
    animation: breathe 14s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
    will-change: transform;
}
@keyframes breathe {
    0%   { transform: scale(1.0)  translate(0, 0); }
    50%  { transform: scale(1.04) translate(0, 4px); }
    100% { transform: scale(1.0)  translate(0, 0); }
}

.surface-phrase {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--vermillion);
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    line-height: 1.06;
    letter-spacing: -0.012em;
    font-size: clamp(2.4rem, 5.4vw, 4.8rem);
    padding: 0 6vw;
}
.phrase-line { display: block; }

.surface-caption {
    position: absolute;
    bottom: 6vh;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-cond);
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: lowercase;
    color: var(--mineral-grey-green);
    opacity: 0.84;
}

.lagoon-floor-shadow {
    position: absolute;
    inset: -10% -10% 0 -10%;
    background:
        radial-gradient(80% 50% at 50% 80%, rgba(30,40,35,0.10) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* Bleed gradient between 1 and 2 */
.chamber-1::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 38vh;
    background: linear-gradient(to bottom, rgba(216,231,224,0) 0%, var(--deeper-jade) 100%);
    pointer-events: none;
    z-index: 1;
}

/* =====================================================
   Chamber 2 — The Specimen Chart
   ===================================================== */
.chamber-2 {
    background: var(--deeper-jade);
    min-height: 180vh;
    padding-top: 12vh;
    padding-bottom: 12vh;
    position: relative;
}

.chamber-2-intro {
    position: relative;
    z-index: 4;
    max-width: 720px;
    margin: 0 auto 6vh auto;
    padding: 0 6vw;
    text-align: center;
}
.chamber-2-intro p {
    font-size: clamp(1.4rem, 2.8vw, 2.2rem);
    line-height: 1.18;
}

.aquarium {
    position: relative;
    height: 150vh;
    width: 100%;
    overflow: hidden;
}

.vertical-rule {
    position: absolute;
    top: 0;
    right: 6vw;
    height: 100%;
    width: 4px;
    z-index: 1;
    pointer-events: none;
}
.vertical-rule svg {
    height: 100%;
    overflow: visible;
}

.specimen-pod {
    position: absolute;
    width: 240px;
    height: 180px;
    will-change: transform;
    pointer-events: none;
    transform: translate3d(0,0,0);
    z-index: 2;
    filter: drop-shadow(0 22px 36px rgba(30,40,35,0.10));
}
.specimen-pod-blob {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
}
.specimen-pod-creature {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.specimen-pod-creature svg { width: 60%; height: 60%; }

.specimen-label {
    position: absolute;
    top: 50%;
    left: calc(100% + 14px);
    transform: translateY(-50%);
    width: 220px;
    font-family: var(--font-cond);
    color: var(--kelp-ink);
}
.specimen-label .binomial {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    font-size: 18px;
    letter-spacing: -0.01em;
    color: var(--kelp-ink);
    display: block;
    margin-bottom: 4px;
}
.specimen-label .kg {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 13px;
    color: var(--muted-seaweed);
    opacity: 0.78;
    letter-spacing: 0.02em;
    display: block;
    margin-bottom: 6px;
}
.specimen-label .note {
    font-family: var(--font-cond);
    font-weight: 400;
    font-size: 12px;
    line-height: 1.4;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--mineral-grey-green);
}
.specimen-pod.label-left .specimen-label {
    left: auto;
    right: calc(100% + 14px);
    text-align: right;
}

.chamber-2::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 24vh;
    background: linear-gradient(to bottom, rgba(194,214,203,0) 0%, var(--brackish-jade) 100%);
    pointer-events: none;
    z-index: 5;
}

/* =====================================================
   Chamber 3 — The Membrane
   ===================================================== */
.chamber-3 {
    background: var(--brackish-jade);
    min-height: 140vh;
    padding-top: 14vh;
    padding-bottom: 14vh;
}

.chamber-3-intro {
    max-width: 760px;
    margin: 0 auto 6vh auto;
    padding: 0 6vw;
    text-align: center;
}
.chamber-3-intro p {
    font-size: clamp(1.2rem, 2.4vw, 1.8rem);
    line-height: 1.34;
    color: var(--kelp-ink);
}
.chamber-3-intro p:first-child { font-size: clamp(1.4rem, 2.8vw, 2.0rem); }

.membrane-stage {
    position: relative;
    width: 92vw;
    max-width: 1320px;
    margin: 0 auto;
    aspect-ratio: 12 / 7;
    min-height: 64vh;
}
.membrane-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.bubble-field {
    position: absolute;
    inset: 0;
    z-index: 3;
}

.bubble {
    position: absolute;
    transform: translate(-50%, -50%);
    cursor: none;
    will-change: transform, clip-path;
    transition: transform 280ms cubic-bezier(0.34, 1.56, 0.64, 1),
                filter 280ms ease;
    filter: drop-shadow(0 18px 32px rgba(30,40,35,0.12));
}
.bubble svg {
    display: block;
    width: 100%;
    height: 100%;
}
.bubble .bubble-fill {
    transition: fill 320ms ease;
}
.bubble:hover { transform: translate(-50%, -50%) scale(1.06); }
.bubble:hover .bubble-fill { fill: var(--dried-agar); }

.bubble-label {
    position: absolute;
    bottom: 8%;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-cond);
    font-weight: 500;
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--kelp-ink);
    opacity: 0.84;
    pointer-events: none;
    white-space: nowrap;
}

.museum-card {
    position: absolute;
    left: 50%;
    bottom: -120px;
    transform: translateX(-50%) translateY(20px);
    width: min(540px, 78%);
    background: var(--dried-agar);
    border-radius: 42% 58% 71% 29% / 38% 64% 36% 62%;
    padding: 28px 36px 30px 36px;
    box-shadow: 0 30px 60px rgba(30,40,35,0.14);
    opacity: 0;
    pointer-events: none;
    transition: opacity 320ms ease, transform 360ms cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 6;
}
.museum-card.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.museum-card-rule {
    width: 60px;
    height: 1px;
    background: var(--mineral-grey-green);
    margin-bottom: 12px;
    opacity: 0.5;
}
.museum-card-binomial {
    font-size: 22px;
    color: var(--kelp-ink);
    margin-bottom: 6px;
    line-height: 1.16;
}
.museum-card-note {
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.6;
    color: var(--kelp-ink);
    margin-bottom: 8px;
}
.museum-card-meta {
    font-size: 12px;
}

.chamber-3::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 22vh;
    background: linear-gradient(to bottom, rgba(216,231,224,0) 0%, var(--deeper-jade) 100%);
    pointer-events: none;
    z-index: 5;
}

/* =====================================================
   Chamber 4 — The Ledger Pool
   ===================================================== */
.chamber-4 {
    background: var(--deeper-jade);
    min-height: 100vh;
    padding-top: 10vh;
    padding-bottom: 10vh;
    position: relative;
}

.chamber-4-intro {
    max-width: 720px;
    margin: 0 auto 4vh auto;
    padding: 0 6vw;
    text-align: center;
}
.chamber-4-intro p {
    font-size: clamp(1.2rem, 2.4vw, 1.8rem);
    line-height: 1.34;
}

.ledger-lagoon {
    position: relative;
    width: 92vw;
    max-width: 1320px;
    margin: 0 auto;
    aspect-ratio: 12 / 7;
    min-height: 56vh;
}
.ledger-lagoon-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.ledger-intaglio {
    position: absolute;
    top: 18%;
    left: 16%;
    width: 68%;
    height: 64%;
    background: var(--kelp-ink);
    color: var(--brackish-jade);
    z-index: 2;
    overflow: hidden;
    box-shadow:
        inset 0 0 0 1px rgba(216,231,224,0.06),
        0 22px 40px rgba(30,40,35,0.34);
}
.ledger-edge {
    position: absolute;
    background: var(--kelp-ink);
    z-index: 1;
}

.ledger-header {
    position: relative;
    z-index: 3;
    padding: 14px 22px 10px 22px;
    color: var(--brackish-jade);
    opacity: 0.6;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: lowercase;
    border-bottom: 1px solid rgba(216,231,224,0.18);
}
.ledger-marquee {
    position: absolute;
    top: 44px;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 3;
}
.ledger-row {
    position: absolute;
    width: 100%;
    padding: 6px 22px;
    display: grid;
    grid-template-columns: 50px 1.6fr 0.8fr 1fr 0.6fr;
    column-gap: 18px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--brackish-jade);
    opacity: 0.78;
    letter-spacing: 0.02em;
    will-change: transform;
}
.ledger-row .col-trace { color: var(--mineral-grey-green); }
.ledger-row .col-binomial {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    color: var(--brackish-jade);
    opacity: 0.92;
    font-size: 13px;
    letter-spacing: 0;
}
.ledger-row .col-kg { text-align: right; color: var(--sand-line); }
.ledger-row .col-trader { color: var(--brackish-jade); opacity: 0.74; }
.ledger-row .col-time { text-align: right; color: var(--mineral-grey-green); }

.ledger-wave {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -6px;
    width: 100%;
    height: 14px;
    z-index: 2;
    opacity: 0.4;
}

.chamber-4::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 20vh;
    background: linear-gradient(to bottom, rgba(194,214,203,0) 0%, var(--brackish-jade) 100%);
    pointer-events: none;
    z-index: 5;
}

/* =====================================================
   Chamber 5 — The Release
   ===================================================== */
.chamber-5 {
    background: var(--brackish-jade);
    min-height: 120vh;
    padding-top: 10vh;
    padding-bottom: 14vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.release-stage {
    position: relative;
    width: 86vw;
    max-width: 1100px;
    aspect-ratio: 9 / 7;
    display: flex;
    align-items: center;
    justify-content: center;
}
.release-blob-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 50px 80px rgba(30,40,35,0.14));
}

.release-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 64%;
    max-width: 560px;
    padding: 4vh 2vw;
}
.release-prelude {
    font-size: clamp(1.2rem, 2.4vw, 1.8rem);
    line-height: 1.24;
    margin-bottom: 18px;
}
.release-name {
    font-size: clamp(1.6rem, 3.4vw, 2.6rem);
    line-height: 1.1;
    margin-bottom: 10px;
    color: var(--kelp-ink);
}
.release-name .binomial { color: var(--kelp-ink); font-weight: 500; font-style: italic; }
.release-detail { margin-bottom: 24px; }

.release-creature {
    margin: 8px auto 24px auto;
    width: 200px;
    height: 200px;
    will-change: transform;
}
.release-creature svg { display: block; }

.release-button {
    appearance: none;
    border: none;
    background: transparent;
    padding: 0;
    margin: 0 auto;
    font: inherit;
    color: inherit;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.release-button::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 48% 52% 47% 53% / 51% 49% 51% 49%;
    background: var(--deeper-jade);
    transition: transform 360ms cubic-bezier(0.4, 0, 0.2, 1),
                background 320ms ease,
                border-radius 600ms ease;
    box-shadow:
        inset 0 -10px 20px rgba(30,40,35,0.10),
        0 30px 50px rgba(30,40,35,0.14);
}
.release-button:hover::before {
    transform: scale(1.04);
    background: var(--dried-agar);
    border-radius: 52% 48% 53% 47% / 47% 53% 47% 53%;
}
.release-button:active::before {
    transform: scale(0.98);
}
.release-button-inner {
    position: relative;
    z-index: 1;
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    font-size: clamp(1.1rem, 2.2vw, 1.6rem);
    color: var(--kelp-ink);
    letter-spacing: -0.01em;
    line-height: 1.0;
    text-transform: lowercase;
}
.release-button.is-released {
    pointer-events: none;
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 800ms ease, transform 800ms ease;
}

.release-thanks {
    margin-top: -200px;
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    font-size: 12px;
    color: var(--mineral-grey-green);
    opacity: 0;
    pointer-events: none;
    transition: opacity 1200ms ease;
}
.release-thanks.is-visible {
    opacity: 1;
}

.release-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 4;
    overflow: visible;
}
.release-particle {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--muted-seaweed);
    opacity: 0.7;
    will-change: transform, opacity;
    pointer-events: none;
    mix-blend-mode: multiply;
}

.chamber-5::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 18vh;
    background: linear-gradient(to bottom, rgba(216,231,224,0) 0%, var(--sand-line) 100%);
    pointer-events: none;
    z-index: 5;
}

/* =====================================================
   Chamber 6 — The Tidemark
   ===================================================== */
.chamber-6 {
    background: var(--sand-line);
    min-height: 50vh;
    padding: 12vh 6vw 8vh 6vw;
    position: relative;
    display: block;
}

.tidemark-line {
    position: absolute;
    top: 8vh;
    left: 0;
    right: 0;
    height: 18px;
    background:
        linear-gradient(to bottom, rgba(216,231,224,0.0) 0%, rgba(216,231,224,0.6) 60%, rgba(216,231,224,0) 100%);
    pointer-events: none;
}

.sand-band {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 20px 32px;
    padding-top: 4vh;
}
.driftwood {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 13px;
    letter-spacing: 0.04em;
    color: var(--kelp-ink);
    opacity: 0.78;
    transform: translateX(var(--ofs)) translateY(var(--ofs-y, 0));
    line-height: 1.6;
}
.driftwood:nth-child(odd)  { --ofs-y:  4px; }
.driftwood:nth-child(even) { --ofs-y: -3px; }
.driftwood:nth-child(3n)   { --ofs-y:  7px; }
.driftwood:nth-child(5n)   { --ofs-y: -6px; }

/* =====================================================
   Helpers / responsive
   ===================================================== */
@media (max-width: 800px) {
    .surface-blob { width: 86vw; }
    .specimen-pod { width: 200px; height: 150px; }
    .specimen-label { width: 160px; font-size: 12px; }
    .ledger-intaglio { left: 8%; width: 84%; }
    .release-button { width: 200px; height: 200px; }
    .museum-card { width: 86%; }
}

@media (prefers-reduced-motion: reduce) {
    .breathing-blob { animation: none; }
}