/* ============================================================
   20241204.com — "A Day Remembered"
   Palette: December Twilight Gradient
   Fonts: Cormorant Garamond (Google Fonts), Source Sans 3" (Google Fonts), Caveat (Google Fonts)
   Motion: IntersectionObserver fallback for scroll-driven color journey
   ============================================================ */

:root {
    /* December Twilight Gradient */
    --midnight-ink:     #1a1a2e;
    --dusky-mauve:      #6b4c6e;
    --fading-coral:     #d4a0a0;
    --morning-mist:     #f0e6e0;
    --amber-hour:       #c8956c;
    --charcoal-veil:    #2c2c3a;
    --pale-whisper:     #e8ddd5;

    /* Fonts */
    --font-heading: "Cormorant Garamond", "Cormorant", Georgia, serif;
    --font-body:    "Source Sans 3", "Inter", system-ui, sans-serif;
    --font-accent:  "Caveat", "Source Sans 3", cursive;

    /* Rhythm */
    --phi: 1.618;
    --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-soft: cubic-bezier(0.22, 0.61, 0.36, 1);

    /* Ambient background — modulated by JS */
    --ambient-from: #f0e6e0;
    --ambient-to:   #d4a0a0;
    --ambient-mid:  #f0e6e0;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--charcoal-veil);
    background: var(--morning-mist);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

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

/* ------------------------------------------------------------
   Ambient wash (scroll-driven color journey)
   ------------------------------------------------------------ */
.ambient-wash {
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(120% 90% at 30% 10%, var(--ambient-mid) 0%, transparent 60%),
        linear-gradient(180deg, var(--ambient-from) 0%, var(--ambient-to) 100%);
    transition: background 900ms var(--ease-soft);
    pointer-events: none;
}

.ambient-wash::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(80% 50% at 85% 40%, rgba(200, 149, 108, 0.12) 0%, transparent 55%),
        radial-gradient(60% 60% at 15% 80%, rgba(107, 76, 110, 0.18) 0%, transparent 60%);
    mix-blend-mode: soft-light;
    pointer-events: none;
}

/* ------------------------------------------------------------
   Film grain overlay
   ------------------------------------------------------------ */
.grain-overlay {
    position: fixed;
    inset: -5%;
    z-index: 40;
    pointer-events: none;
    opacity: 0.28;
    mix-blend-mode: soft-light;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='300'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/><feColorMatrix type='matrix' values='0 0 0 0 0.17  0 0 0 0 0.17  0 0 0 0 0.22  0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
    animation: grain-drift 9s steps(6) infinite;
}

@keyframes grain-drift {
    0%   { transform: translate(0, 0); }
    20%  { transform: translate(-2%, 1%); }
    40%  { transform: translate(1%, -2%); }
    60%  { transform: translate(-1%, 2%); }
    80%  { transform: translate(2%, 1%); }
    100% { transform: translate(0, 0); }
}

/* ------------------------------------------------------------
   Floating field (calendar numbers, clock hands, torn stamps)
   ------------------------------------------------------------ */
.floating-field {
    position: fixed;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    perspective: 900px;
    perspective-origin: 50% 40%;
}

.float-el {
    position: absolute;
    opacity: 0;
    mix-blend-mode: soft-light;
    will-change: transform, opacity;
    transition: opacity 1200ms var(--ease-soft);
    transform-style: preserve-3d;
}

.float-el.visible {
    opacity: var(--target-op, 0.7);
}

.float-el .float-inner {
    display: block;
    animation-name: spring-oscillate;
    animation-iteration-count: infinite;
    animation-timing-function: var(--spring);
    animation-direction: alternate;
}

@keyframes spring-oscillate {
    0%   { transform: translate3d(0, 0, 0) rotate(0deg); }
    50%  { transform: translate3d(var(--amp-x, 10px), var(--amp-y, -14px), 0) rotate(var(--amp-r, 3deg)); }
    100% { transform: translate3d(calc(var(--amp-x, 10px) * -0.6), calc(var(--amp-y, -14px) * 0.8), 0) rotate(calc(var(--amp-r, 3deg) * -1)); }
}

.float-num {
    font-family: var(--font-heading);
    font-style: italic;
    font-weight: 400;
    color: var(--amber-hour);
    text-shadow: 0 2px 18px rgba(200, 149, 108, 0.25);
    letter-spacing: -0.02em;
}

.float-word {
    font-family: var(--font-heading);
    font-weight: 300;
    letter-spacing: 0.4em;
    color: var(--dusky-mauve);
    text-transform: uppercase;
}

.float-caveat {
    font-family: var(--font-accent);
    color: var(--amber-hour);
}

.float-shape {
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, rgba(212, 160, 160, 0.55), rgba(212, 160, 160, 0) 70%);
    filter: blur(2px);
}

.float-hand {
    color: var(--dusky-mauve);
    opacity: 0.85;
}

.float-torn {
    background: var(--pale-whisper);
    color: var(--charcoal-veil);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    padding: 0.5em 1em;
    -webkit-mask-image: radial-gradient(circle at 10% 50%, transparent 2px, black 3px), radial-gradient(circle at 30% 10%, transparent 3px, black 4px), radial-gradient(circle at 70% 90%, transparent 3px, black 4px), linear-gradient(black, black);
    mask-image: radial-gradient(circle at 10% 50%, transparent 2px, black 3px), radial-gradient(circle at 30% 10%, transparent 3px, black 4px), radial-gradient(circle at 70% 90%, transparent 3px, black 4px), linear-gradient(black, black);
    box-shadow: 0 10px 40px rgba(26, 26, 46, 0.12);
    transform: rotate(-6deg);
    text-transform: uppercase;
    border-top: 1px dashed rgba(44, 44, 58, 0.25);
    border-bottom: 1px dashed rgba(44, 44, 58, 0.25);
}

/* ------------------------------------------------------------
   Timeline (right edge, whisper of passage)
   ------------------------------------------------------------ */
.timeline {
    position: fixed;
    top: 50%;
    right: clamp(14px, 2vw, 32px);
    transform: translateY(-50%);
    z-index: 30;
    pointer-events: none;
    font-family: var(--font-body);
    font-size: 0.68rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--dusky-mauve);
    mix-blend-mode: multiply;
}

.timeline-track {
    position: relative;
    width: 1px;
    height: 44vh;
    background: linear-gradient(180deg, transparent 0%, rgba(107, 76, 110, 0.5) 15%, rgba(107, 76, 110, 0.5) 85%, transparent 100%);
}

.timeline-fill {
    position: absolute;
    top: 0;
    left: -0.5px;
    width: 2px;
    height: 0%;
    background: linear-gradient(180deg, var(--amber-hour), var(--dusky-mauve));
    opacity: 0.85;
    transition: height 180ms linear;
}

.timeline-marks {
    list-style: none;
    position: absolute;
    inset: 0;
    margin: 0;
    padding: 0;
}

.mark {
    position: absolute;
    left: -6px;
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateY(-50%);
    opacity: 0.55;
    transition: opacity 600ms var(--ease-soft), color 600ms var(--ease-soft);
}

.mark.active {
    opacity: 1;
    color: var(--amber-hour);
}

.mark-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    border: 1px solid currentColor;
    background: transparent;
    transition: background 400ms var(--ease-soft), transform 500ms var(--spring);
}

.mark.active .mark-dot {
    background: currentColor;
    transform: scale(1.4);
}

.mark-label {
    transform: translateX(-110%) translateX(-14px);
    white-space: nowrap;
    font-size: 0.62rem;
    opacity: 0;
    transition: opacity 500ms var(--ease-soft);
}

.mark.active .mark-label {
    opacity: 0.85;
}

.mark[data-hour="dawn"]      { top: 4%; }
.mark[data-hour="morning"]   { top: 22%; }
.mark[data-hour="midday"]    { top: 40%; }
.mark[data-hour="afternoon"] { top: 58%; }
.mark[data-hour="dusk"]      { top: 76%; }
.mark[data-hour="night"]     { top: 94%; }

/* ------------------------------------------------------------
   Mute / ambient toggle
   ------------------------------------------------------------ */
.mute-toggle {
    position: fixed;
    bottom: 22px;
    left: 22px;
    z-index: 50;
    border: none;
    background: transparent;
    padding: 10px 14px 10px 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    color: var(--dusky-mauve);
    font-family: var(--font-body);
    font-size: 0.7rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    opacity: 0.75;
    transition: opacity 400ms var(--ease-soft), transform 500ms var(--spring);
}

.mute-toggle:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.pulse-circle {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--amber-hour) 0%, rgba(200, 149, 108, 0.35) 70%, transparent 100%);
    box-shadow: 0 0 0 0 rgba(200, 149, 108, 0.6);
    animation: pulse-soft 3.2s var(--ease-soft) infinite;
}

.mute-toggle.on .pulse-circle {
    background: radial-gradient(circle, var(--fading-coral) 0%, rgba(212, 160, 160, 0.4) 70%, transparent 100%);
}

@keyframes pulse-soft {
    0%   { box-shadow: 0 0 0 0 rgba(200, 149, 108, 0.55); transform: scale(1); }
    70%  { box-shadow: 0 0 0 14px rgba(200, 149, 108, 0); transform: scale(1.08); }
    100% { box-shadow: 0 0 0 0 rgba(200, 149, 108, 0); transform: scale(1); }
}

.mute-label {
    opacity: 0.8;
}

/* ------------------------------------------------------------
   Narrative container
   ------------------------------------------------------------ */
.narrative {
    position: relative;
    z-index: 4;
}

.chapter {
    position: relative;
    min-height: 100vh;
    padding: calc(10vh * var(--phi) / var(--phi)) 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
}

.chapter-inner {
    position: relative;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 8vh clamp(24px, 6vw, 90px);
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: clamp(16px, 2vw, 32px);
    align-items: start;
}

/* Diagonal / tilted planes */
.tilt-left {
    transform: rotate(-1.4deg);
    transform-origin: 15% 50%;
}

.tilt-right {
    transform: rotate(1.2deg);
    transform-origin: 85% 50%;
}

/* Diagonal clip-paths alternating direction */
.chapter-dawn,
.chapter-midday,
.chapter-dusk {
    clip-path: polygon(0 5%, 100% 0%, 100% 95%, 0 100%);
}

.chapter-morning,
.chapter-afternoon,
.chapter-night {
    clip-path: polygon(0 0%, 100% 5%, 100% 100%, 0 95%);
}

.chapter-open,
.chapter-close {
    clip-path: none;
}

.chapter + .chapter {
    margin-top: -90px;
}

/* ------------------------------------------------------------
   Chapter backgrounds (per-hour gradients)
   ------------------------------------------------------------ */
.chapter-open {
    background: linear-gradient(180deg, var(--morning-mist) 0%, #f7ede5 100%);
    color: var(--charcoal-veil);
}

.chapter-dawn {
    background:
        radial-gradient(60% 70% at 20% 30%, rgba(212, 160, 160, 0.35), transparent 70%),
        linear-gradient(160deg, var(--morning-mist) 0%, #eed6c9 100%);
    color: var(--charcoal-veil);
}

.chapter-morning {
    background:
        radial-gradient(70% 60% at 80% 25%, rgba(200, 149, 108, 0.25), transparent 70%),
        linear-gradient(175deg, #f4e6d6 0%, var(--fading-coral) 100%);
    color: var(--charcoal-veil);
}

.chapter-midday {
    background:
        radial-gradient(50% 50% at 50% 35%, rgba(255, 236, 214, 0.55), transparent 70%),
        linear-gradient(180deg, var(--fading-coral) 0%, #c29099 100%);
    color: var(--charcoal-veil);
}

.chapter-afternoon {
    background:
        radial-gradient(70% 60% at 30% 60%, rgba(200, 149, 108, 0.3), transparent 70%),
        linear-gradient(190deg, #b98c94 0%, var(--dusky-mauve) 100%);
    color: var(--pale-whisper);
}

.chapter-dusk {
    background:
        radial-gradient(60% 70% at 80% 20%, rgba(200, 149, 108, 0.35), transparent 70%),
        linear-gradient(200deg, var(--dusky-mauve) 0%, #3f3048 100%);
    color: var(--pale-whisper);
}

.chapter-night {
    background:
        radial-gradient(50% 60% at 20% 70%, rgba(107, 76, 110, 0.5), transparent 70%),
        linear-gradient(200deg, #2a2240 0%, var(--midnight-ink) 100%);
    color: var(--pale-whisper);
}

.chapter-close {
    background: linear-gradient(180deg, var(--midnight-ink) 0%, #0f0f1c 100%);
    color: var(--pale-whisper);
}

/* Dark chapters — adjust ambient child tones */
.chapter-afternoon .timestamp,
.chapter-dusk .timestamp,
.chapter-night .timestamp {
    color: var(--amber-hour);
}

.chapter-afternoon .caveat,
.chapter-dusk .caveat,
.chapter-night .caveat {
    color: var(--amber-hour);
}

/* ------------------------------------------------------------
   Opening chapter
   ------------------------------------------------------------ */
.chapter-open {
    min-height: 100vh;
    align-items: center;
    justify-content: center;
}

.open-inner {
    position: relative;
    text-align: center;
    padding: 0 6vw;
    width: 100%;
    max-width: 1400px;
}

.eyebrow {
    font-family: var(--font-body);
    font-weight: 400;
    letter-spacing: 0.55em;
    text-transform: uppercase;
    font-size: 0.72rem;
    color: var(--dusky-mauve);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 1400ms var(--ease-soft) 200ms, transform 1400ms var(--ease-soft) 200ms;
    margin-bottom: clamp(20px, 4vh, 48px);
}

.chapter-open.revealed .eyebrow {
    opacity: 0.85;
    transform: translateY(0);
}

.date-colossus {
    font-family: var(--font-heading);
    font-weight: 300;
    font-style: italic;
    line-height: 0.96;
    letter-spacing: -0.02em;
    color: var(--charcoal-veil);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.08em;
}

.dc-line {
    display: flex;
    justify-content: center;
    gap: 0.02em;
}

.dc-day {
    font-size: clamp(7rem, 15vw, 16rem);
}

.dc-month {
    font-size: clamp(1.8rem, 4.5vw, 4.5rem);
    letter-spacing: 0.35em;
    font-style: normal;
    font-weight: 400;
    color: var(--dusky-mauve);
    margin-top: -0.3em;
    margin-bottom: -0.1em;
}

.dc-month .ch {
    width: auto;
}

.dc-year {
    font-size: clamp(2rem, 5vw, 5rem);
    font-style: italic;
    color: var(--amber-hour);
}

.ch {
    display: inline-block;
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 900ms var(--ease-soft), transform 900ms var(--spring);
}

.chapter-open.revealed .ch {
    opacity: 1;
    transform: translateY(0);
}

.scroll-whisper {
    margin-top: clamp(60px, 12vh, 140px);
    font-family: var(--font-accent);
    color: var(--dusky-mauve);
    font-size: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    opacity: 0;
    transition: opacity 1600ms var(--ease-soft) 1200ms;
}

.chapter-open.revealed .scroll-whisper {
    opacity: 0.7;
    animation: whisper-breath 4s ease-in-out infinite 1600ms;
}

@keyframes whisper-breath {
    0%, 100% { opacity: 0.55; transform: translateY(0); }
    50%      { opacity: 0.9;  transform: translateY(4px); }
}

.whisper-line {
    width: 42px;
    height: 1px;
    background: currentColor;
    opacity: 0.5;
}

/* ------------------------------------------------------------
   Chapter content
   ------------------------------------------------------------ */
.timestamp {
    grid-column: 2 / span 6;
    font-family: var(--font-accent);
    font-size: 1.15rem;
    color: var(--amber-hour);
    letter-spacing: 0.02em;
    margin-bottom: 18px;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 900ms var(--ease-soft), transform 900ms var(--ease-soft);
}

.chapter-title {
    grid-column: 2 / span 6;
    font-family: var(--font-heading);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(2.5rem, 5.2vw, 5.2rem);
    line-height: 1.04;
    letter-spacing: -0.012em;
    margin-bottom: calc(1rem * var(--phi));
    max-width: 14ch;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 1100ms var(--ease-soft) 100ms, transform 1100ms var(--spring) 100ms;
}

.chapter-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 1px;
    margin-top: 0.6em;
    background: currentColor;
    opacity: 0.35;
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 1200ms var(--ease-soft) 400ms;
}

.chapter.in-view .chapter-title::after {
    transform: scaleX(1);
}

.prose {
    grid-column: 2 / span 5;
    font-size: 1.125rem;
    line-height: 1.75;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 900ms var(--ease-soft) 300ms, transform 900ms var(--ease-soft) 300ms;
}

.prose p {
    margin-bottom: 1.1em;
    text-shadow: 0 1px 18px rgba(240, 230, 224, 0.25);
}

.chapter-afternoon .prose p,
.chapter-dusk .prose p,
.chapter-night .prose p,
.chapter-close .prose p {
    text-shadow: 0 1px 24px rgba(26, 26, 46, 0.45);
}

.accent {
    font-family: var(--font-accent);
    color: var(--amber-hour);
    font-size: 1.2em;
    padding: 0 0.08em;
}

/* Reveal in view */
.chapter.in-view .timestamp,
.chapter.in-view .chapter-title,
.chapter.in-view .prose {
    opacity: 1;
    transform: translateY(0);
}

/* ------------------------------------------------------------
   Photo frames
   ------------------------------------------------------------ */
.photo-frame {
    grid-column: 8 / span 4;
    grid-row: 1 / span 4;
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 5;
    padding: 14px 14px 42px;
    background: rgba(240, 230, 224, 0.7);
    box-shadow:
        0 30px 70px -24px rgba(26, 26, 46, 0.35),
        0 6px 18px -8px rgba(26, 26, 46, 0.2);
    filter: saturate(0.72);
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 900ms var(--ease-soft) 200ms, transform 900ms var(--spring) 200ms;
    -webkit-mask-image: radial-gradient(circle at 3% 12%, transparent 3px, black 5px),
                       radial-gradient(circle at 97% 8%, transparent 4px, black 6px),
                       radial-gradient(circle at 6% 96%, transparent 3px, black 5px),
                       radial-gradient(circle at 94% 94%, transparent 5px, black 7px),
                       linear-gradient(black, black);
            mask-image: radial-gradient(circle at 3% 12%, transparent 3px, black 5px),
                       radial-gradient(circle at 97% 8%, transparent 4px, black 6px),
                       radial-gradient(circle at 6% 96%, transparent 3px, black 5px),
                       radial-gradient(circle at 94% 94%, transparent 5px, black 7px),
                       linear-gradient(black, black);
}

.chapter.in-view .photo-frame {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.tilt-1 { rotate: -2.3deg; }
.tilt-2 { rotate:  1.8deg; }
.tilt-3 { rotate: -1.2deg; }

.photo {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: saturate(0.7) blur(0.4px);
    position: relative;
}

.photo::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(200, 149, 108, 0.12);
    mix-blend-mode: overlay;
    pointer-events: none;
}

/* Gradient-painted "photos" (no external assets) */
.photo-dawn {
    background:
        radial-gradient(60% 50% at 50% 70%, rgba(255, 236, 214, 0.9), transparent 80%),
        linear-gradient(180deg, #b8a3b0 0%, #d4a0a0 40%, #e8c9a9 100%);
}

.photo-morning {
    background:
        radial-gradient(50% 40% at 70% 30%, rgba(255, 230, 200, 0.8), transparent 70%),
        linear-gradient(180deg, #e8d6c2 0%, #c9957d 70%, #6b4c6e 100%);
}

.photo-midday {
    background:
        radial-gradient(80% 60% at 50% 20%, rgba(255, 244, 220, 0.85), transparent 70%),
        linear-gradient(200deg, #f0e6d2 0%, #d4a0a0 60%, #a7808c 100%);
}

.photo-afternoon {
    background:
        radial-gradient(60% 50% at 40% 60%, rgba(200, 149, 108, 0.55), transparent 70%),
        linear-gradient(180deg, #a67d86 0%, #6b4c6e 70%, #3a2d48 100%);
}

.photo-dusk {
    background:
        radial-gradient(70% 60% at 75% 40%, rgba(200, 149, 108, 0.55), transparent 70%),
        linear-gradient(200deg, #6b4c6e 0%, #3a2d48 60%, #1a1a2e 100%);
}

.photo-night {
    background:
        radial-gradient(35% 45% at 30% 70%, rgba(255, 210, 150, 0.55), transparent 70%),
        linear-gradient(180deg, #1a1a2e 0%, #12121f 100%);
}

.photo-frame figcaption {
    position: absolute;
    bottom: 8px;
    left: 0;
    right: 0;
    text-align: center;
    font-family: var(--font-accent);
    font-size: 1.05rem;
    color: var(--charcoal-veil);
    opacity: 0.8;
}

/* ------------------------------------------------------------
   Margin notes (journal-edge annotations)
   ------------------------------------------------------------ */
.margin-note {
    grid-column: 1 / span 1;
    grid-row: 2 / span 1;
    font-family: var(--font-accent);
    color: var(--amber-hour);
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-size: 1rem;
    letter-spacing: 0.08em;
    opacity: 0.7;
    padding-top: 12px;
}

.margin-note.right {
    grid-column: 12 / span 1;
    grid-row: 3 / span 1;
    transform: rotate(0deg);
    writing-mode: vertical-rl;
}

/* ------------------------------------------------------------
   Decorative dot grid
   ------------------------------------------------------------ */
.dotgrid {
    grid-column: 8 / span 4;
    grid-row: 5 / span 1;
    height: 120px;
    background-image: radial-gradient(currentColor 1px, transparent 1.2px);
    background-size: 14px 14px;
    opacity: 0.08;
    color: var(--dusky-mauve);
    margin-top: 24px;
}

/* ------------------------------------------------------------
   Closing chapter
   ------------------------------------------------------------ */
.chapter-close {
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.close-inner {
    text-align: center;
    padding: 0 6vw;
    width: 100%;
    max-width: 900px;
}

.close-title {
    font-family: var(--font-heading);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(2rem, 4.5vw, 4.5rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--pale-whisper);
    margin-bottom: clamp(30px, 6vh, 60px);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1200ms var(--ease-soft), transform 1200ms var(--spring);
}

.chapter-close.in-view .close-title {
    opacity: 1;
    transform: translateY(0);
}

.close-sign {
    font-size: 1.5rem;
    color: var(--amber-hour);
    letter-spacing: 0.04em;
    opacity: 0;
    transition: opacity 1400ms var(--ease-soft) 400ms;
}

.chapter-close.in-view .close-sign {
    opacity: 0.9;
}

.clockface {
    margin: clamp(40px, 8vh, 90px) auto 0;
    width: clamp(100px, 14vw, 160px);
    color: var(--amber-hour);
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 1400ms var(--ease-soft) 600ms, transform 1400ms var(--spring) 600ms;
}

.chapter-close.in-view .clockface {
    opacity: 0.85;
    transform: scale(1);
}

.clock-svg {
    width: 100%;
    height: auto;
}

#clockHand {
    transform-origin: 60px 60px;
    animation: clock-sway 7s ease-in-out infinite alternate;
}

@keyframes clock-sway {
    0%   { transform: rotate(-6deg); }
    100% { transform: rotate(4deg); }
}

/* ------------------------------------------------------------
   Responsive
   ------------------------------------------------------------ */
@media (max-width: 900px) {
    .chapter-inner {
        grid-template-columns: repeat(6, 1fr);
        padding: 6vh clamp(20px, 5vw, 40px);
    }
    .timestamp,
    .chapter-title,
    .prose {
        grid-column: 1 / span 6;
    }
    .photo-frame {
        grid-column: 1 / span 6;
        grid-row: auto;
        max-width: 420px;
        margin: 20px 0 10px;
    }
    .dotgrid {
        grid-column: 1 / span 6;
    }
    .margin-note,
    .margin-note.right {
        writing-mode: horizontal-tb;
        transform: none;
        grid-column: 1 / span 6;
        grid-row: auto;
        opacity: 0.6;
    }
    .timeline {
        display: none;
    }
    .tilt-left,
    .tilt-right {
        transform: none;
    }
    .chapter-dawn, .chapter-midday, .chapter-dusk,
    .chapter-morning, .chapter-afternoon, .chapter-night {
        clip-path: none;
    }
    .chapter + .chapter {
        margin-top: 0;
    }
}

@media (max-width: 560px) {
    body {
        font-size: 1rem;
    }
    .dc-day { font-size: clamp(5rem, 22vw, 10rem); }
    .dc-month { font-size: clamp(1.2rem, 5.5vw, 2.5rem); letter-spacing: 0.25em; }
    .dc-year { font-size: clamp(1.6rem, 6vw, 3rem); }
    .mute-toggle .mute-label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.2s !important;
    }
}