:root {
    --denim-deep:   #14243a;
    --denim:        #24466f;
    --denim-light:  #6f94bd;
    --denim-stitch: #eef3f8;

    /* paper */
    --paper:        #f6f2e7;
    --paper-edge:   #e8e0cc;
    --paper-line:   #cdd7e2;

    /* ink */
    --ink:          #1c2a41;
    --ink-soft:     #43567a;
    --cream:        #f4f0e4;

    /* accents */
    --accent-rose:      #e6a7c4;
    --accent-lavender:  #b39ce8;
    --accent-sky:       #b7ddf2;
    --accent-gold:      #cfa85e;

    /* fabric texture + name-patch gradient (swapped per theme) */
    --texture-image: url("assets/img/denim-tile-denim.jpg");
    --patch-a: #33578a;
    --patch-b: #1c3355;

    /* type */
    --font-display: 'Caveat', cursive;
    --font-body: 'Kalam', cursive;
    --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* motion */
    --ease-soft: cubic-bezier(.22,.61,.36,1);
    --dur-slow: 900ms;
    --dur-med: 550ms;
}

@media (prefers-reduced-motion: reduce) {
    :root { --dur-slow: 1ms; --dur-med: 1ms; }
}

:root[data-theme="rose"] {
    --denim-deep:   #2f1a24;
    --denim:        #6d3650;
    --denim-light:  #c98fa6;
    --paper:        #faeef1;
    --paper-edge:   #f0d9de;
    --paper-line:   #e6c6cf;
    --ink:          #3a1f2b;
    --ink-soft:     #6b4152;
    --cream:        #fbeef0;
    --accent-rose:      #d98fa6;
    --accent-lavender:  #c9a0c9;
    --accent-sky:       #f0c4d4;
    --accent-gold:      #caa06a;
    --texture-image: url("assets/img/denim-tile-rose.jpg");
    --patch-a: #8a4a63;
    --patch-b: #3d1f2a;
}

:root[data-theme="sage"] {
    --denim-deep:   #1c2a1f;
    --denim:        #3c5c40;
    --denim-light:  #93b28f;
    --paper:        #f3f4ea;
    --paper-edge:   #e4e8d4;
    --paper-line:   #d2dcc6;
    --ink:          #263626;
    --ink-soft:     #4c5f4a;
    --cream:        #f5f6ec;
    --accent-rose:      #d99b9b;
    --accent-lavender:  #a7b98f;
    --accent-sky:       #bcd3c1;
    --accent-gold:      #c2a25e;
    --texture-image: url("assets/img/denim-tile-sage.jpg");
    --patch-a: #4c6f4f;
    --patch-b: #1f2f22;
}

:root[data-theme="ivory"] {
    --denim-deep:   #241f1a;
    --denim:        #5c4c3a;
    --denim-light:  #a89680;
    --paper:        #faf6ec;
    --paper-edge:   #efe6d2;
    --paper-line:   #ded0b3;
    --ink:          #2b2620;
    --ink-soft:     #5c5040;
    --cream:        #faf6ec;
    --accent-rose:      #d9b48f;
    --accent-lavender:  #cbb896;
    --accent-sky:       #e3d5b8;
    --accent-gold:      #c9a24a;
    --texture-image: url("assets/img/denim-tile-ivory.jpg");
    --patch-a: #6b5a44;
    --patch-b: #2b2620;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--denim-deep);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
h1, h2 { margin: 0; font-family: var(--font-display); }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }
[hidden] { display: none !important; }
.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.denim-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image:
        linear-gradient(180deg, rgba(10,18,30,.35), rgba(10,18,30,.55)),
        var(--texture-image);
    background-size: 480px 480px, 480px 480px;
    background-repeat: repeat, repeat;
    background-blend-mode: normal;
}
.denim-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(120% 90% at 50% 0%, rgba(255,255,255,.06), transparent 55%);
    pointer-events: none;
}

.spiral-rail {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: 18px;
    z-index: 40;
    pointer-events: none;
    background-image: radial-gradient(circle at 9px 12px, transparent 4.5px, var(--denim-deep) 5px 6px, transparent 6.5px);
    background-size: 18px 26px;
    opacity: .85;
    display: none;
}
@media (min-width: 720px) {
    .spiral-rail { display: block; }
}

.spread, .closing, .cover {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: clamp(1.5rem, 6vw, 4rem) clamp(1.25rem, 6vw, 4rem);
    overflow: hidden;
}
@media (min-width: 720px) {
    .spread { padding-left: clamp(2.5rem, 8vw, 6rem); }
}


.sticker { position: absolute; width: 56px; height: 56px; filter: drop-shadow(0 4px 8px rgba(0,0,0,.25)); z-index: 3; }
.sticker--heart use { fill: var(--accent-rose); }
.sticker--star use { fill: var(--paper); stroke: var(--ink); stroke-width: 3; }
.sticker--flower use { fill: var(--accent-lavender); }
.sticker--cloud use { fill: var(--accent-sky); }

/* per-spread accent coloring */
.spread[data-accent="rose"] .sticker--star use,
.gallery-spread[data-accent="rose"] .sticker--heart use { fill: var(--accent-rose); }
.gallery-spread[data-accent="lavender"] .sticker--heart use,
.gallery-spread[data-accent="lavender"] .sticker--star use { fill: var(--accent-lavender); }
.gallery-spread[data-accent="sky"] .sticker--heart use,
.gallery-spread[data-accent="sky"] .sticker--star use { fill: var(--accent-sky); }

.cover { text-align: center; z-index: 10; }
.cover-inner {
    position: relative;
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.1rem;
    max-width: 30rem;
}
.eyebrow {
    font-family: var(--font-ui);
    text-transform: uppercase;
    letter-spacing: .22em;
    font-size: .72rem;
    color: var(--denim-light);
    margin: 0;
}
.name-patch {
    position: relative;
    padding: clamp(1.4rem, 5vw, 2.2rem) clamp(2rem, 8vw, 3.5rem);
    background:
        repeating-linear-gradient(115deg, rgba(255,255,255,.05) 0 2px, transparent 2px 6px),
        linear-gradient(160deg, var(--patch-a), var(--patch-b));
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,.35), inset 0 0 0 1px rgba(255,255,255,.06);
}
.patch-stitch {
    position: absolute;
    inset: 8px;
    border: 2px dashed rgba(238,243,248,.55);
    border-radius: 6px;
    pointer-events: none;
}
.name-patch h1 {
    font-size: clamp(2.6rem, 11vw, 4.4rem);
    line-height: 1;
    color: var(--cream);
    text-shadow: 0 3px 0 rgba(0,0,0,.25);
}
.name-patch h2 {
    font-size: clamp(1.4rem, 5vw, 1.8rem);
    color: var(--paper-line);
    margin-bottom: .3rem;
}
.cover-hint {
    font-family: var(--font-body);
    font-style: italic;
    color: var(--paper-line);
    font-size: clamp(.95rem, 3vw, 1.05rem);
}
.sound-note {
    font-family: var(--font-ui);
    font-size: .75rem;
    color: rgba(238,243,248,.55);
}

.paper-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--paper);
    color: var(--ink);
    border: none;
    padding: .9rem 2.1rem;
    font-family: var(--font-display);
    font-size: clamp(1.15rem, 4vw, 1.4rem);
    border-radius: 3px 10px 4px 9px / 9px 4px 10px 3px;
    box-shadow: 0 10px 22px rgba(0,0,0,.3);
    transition: transform var(--dur-med) var(--ease-soft), box-shadow var(--dur-med) var(--ease-soft);
}
.paper-button::before {
    content: "";
    position: absolute;
    inset: 6px;
    border: 1.5px dashed rgba(28,42,65,.35);
    border-radius: inherit;
    pointer-events: none;
}
.paper-button:hover { transform: translateY(-3px); box-shadow: 0 16px 28px rgba(0,0,0,.35); }
.paper-button:active { transform: translateY(0); }
.paper-button--ghost {
    background: transparent;
    color: var(--cream);
    box-shadow: none;
    border: 1.5px dashed rgba(244,240,228,.55);
}
.paper-button--ghost::before { display: none; }

.cover-star1 { top: 14%; left: 12%; width: 40px; height: 40px; }
.cover-heart1 { bottom: 16%; right: 14%; width: 44px; height: 44px; }
.cover-flower1 { top: 22%; right: 10%; width: 34px; height: 34px; }
.cover-cloud1 { bottom: 22%; left: 8%; width: 46px; height: 46px; }

/* cover exit */
.cover.is-leaving { animation: coverLeave var(--dur-slow) var(--ease-soft) forwards; }
@keyframes coverLeave {
    to { opacity: 0; transform: scale(1.015); visibility: hidden; }
}

.calendar-spread { text-align: center; }
.calendar-card {
    max-width: 26rem;
    text-align: center;
}
.calendar-card h2 {
    font-size: clamp(1.8rem, 6vw, 2.4rem);
    color: var(--ink);
    margin-bottom: 1.1rem;
}
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: clamp(3px, 1vw, 6px);
    margin: 0 auto;
}
.calendar-weekday {
    font-family: var(--font-ui);
    font-size: .62rem;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--ink-soft);
    padding-bottom: .4rem;
}
.calendar-day {
    position: relative;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-ui);
    font-size: clamp(.72rem, 2.6vw, .85rem);
    color: var(--ink-soft);
    border-radius: 4px;
}
.calendar-day.is-empty { visibility: hidden; }
.calendar-day.is-birthday {
    color: var(--cream);
    font-weight: 700;
    z-index: 1;
}
.calendar-heart-mark {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    animation: birthdayPulse 2.4s ease-in-out infinite;
}
.calendar-heart-mark use { fill: var(--accent-rose); }
.calendar-day.is-birthday span,
.calendar-day.is-birthday { text-shadow: 0 1px 2px rgba(0,0,0,.25); }
@keyframes birthdayPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.12); opacity: .85; }
}
@media (prefers-reduced-motion: reduce) {
    .calendar-heart-mark { animation: none; }
}
.calendar-caption {
    margin-top: 1.2rem;
}
.calendar-heart { top: -14px; left: -12px; }

.paper-note {
    position: relative;
    min-width: 0;
    background:
        repeating-linear-gradient(var(--paper-line) 0 1px, transparent 1px 34px),
        repeating-linear-gradient(90deg, var(--paper-line) 0 1px, transparent 1px 34px),
        var(--paper);
    background-size: 100% 34px, 34px 100%, 100% 100%;
    padding: clamp(1.6rem, 6vw, 3rem) clamp(1.5rem, 6vw, 3rem);
    max-width: 30rem;
    width: 100%;
    box-shadow: 0 18px 40px rgba(5,12,25,.4);
    clip-path: polygon(
        0% 2%, 4% 0%, 9% 1.6%, 15% 0.2%, 21% 1.4%, 27% 0%, 34% 1.2%, 41% 0.3%,
        48% 1.6%, 55% 0%, 62% 1.1%, 69% 0.2%, 76% 1.5%, 83% 0%, 90% 1.2%, 96% 0.3%, 100% 1.6%,
        100% 100%, 0% 100%
    );
    z-index: 2;
}
.paper-note .clip {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%) rotate(-3deg);
    width: 46px;
    height: 26px;
    background: linear-gradient(160deg, #cfd6df, #8f99a6);
    border-radius: 3px;
    box-shadow: 0 4px 8px rgba(0,0,0,.35);
}
.paper-note .clip::after {
    content: "";
    position: absolute;
    left: 50%; top: 50%;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: #454f5c;
    transform: translate(-50%,-50%);
}
.note-eyebrow {
    font-family: var(--font-ui);
    font-size: .7rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: .5rem;
}
.paper-note h2 {
    font-size: clamp(2rem, 7vw, 2.9rem);
    line-height: 1.05;
    color: var(--ink);
    margin-bottom: .8rem;
}
.note-text {
    font-size: clamp(1rem, 3.4vw, 1.15rem);
    line-height: 1.6;
    color: var(--ink-soft);
    font-style: italic;
}
.paper-note .sticker { top: -14px; right: -10px; }

.polaroid {
    position: relative;
    min-width: 0;
    background: var(--paper-edge);
    padding: .8rem .8rem 2.6rem;
    width: min(78vw, 320px);
    box-shadow: 0 20px 40px rgba(5,12,25,.45);
    z-index: 2;
    margin: 0;
}
.polaroid img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    background: var(--denim);
}
.polaroid figcaption {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--ink);
    text-align: center;
    padding-top: .5rem;
}
.polaroid .pin {
    position: absolute;
    top: -16px; left: 50%;
    transform: translateX(-50%);
    width: 22px; height: 22px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #f4efe6, #b9ad92 65%, #8c7f61);
    box-shadow: 0 4px 8px rgba(0,0,0,.4);
}
.polaroid--hero { width: min(82vw, 380px); }

.hero-spread {
    display: flex;
    flex-direction: column;
    gap: clamp(2rem, 8vw, 3rem);
    text-align: left;
}
.hero-spread .paper-note { order: 1; }
.hero-spread .polaroid { order: 2; align-self: center; }
.scroll-cue {
    position: absolute;
    left: 50%;
    bottom: clamp(1rem, 4vh, 2.2rem);
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .35rem;
    color: var(--paper-line);
    font-family: var(--font-ui);
    font-size: .68rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    z-index: 4;
    opacity: 0;
    animation: cueIn 1s var(--ease-soft) 1.8s forwards;
    transition: opacity .5s ease;
}
.scroll-cue.is-hidden { opacity: 0 !important; }
.scroll-cue svg {
    width: 16px; height: 16px;
    animation: cueBounce 1.8s ease-in-out infinite;
}
@keyframes cueIn { to { opacity: .85; } }
@keyframes cueBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}
@media (prefers-reduced-motion: reduce) {
    .scroll-cue svg { animation: none; }
}
@media (min-width: 860px) {
    .hero-spread {
        display: grid;
        grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
        align-items: center;
        justify-items: center;
        gap: clamp(2rem, 6vw, 6rem);
    }
    .hero-spread .paper-note,
    .hero-spread .polaroid { justify-self: center; }
}

.gallery-spread {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(2rem, 8vw, 3rem);
    padding: clamp(1.5rem, 6vw, 4rem) clamp(1.25rem, 6vw, 4rem);
    overflow: hidden;
}
@media (min-width: 860px) {
    .gallery-spread {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
        align-items: center;
        justify-items: center;
        gap: clamp(2rem, 6vw, 6rem);
        padding-left: clamp(3rem, 8vw, 6rem);
    }
    .gallery-spread[data-layout="right"] .paper-note { order: 2; }
    .gallery-spread[data-layout="right"] .gallery-photos { order: 1; }
}
.gallery-photos {
    position: relative;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.6rem;
}
@media (min-width: 540px) {
    .gallery-photos { flex-direction: row; align-items: flex-end; }
    .gallery-photos .polaroid:nth-child(2) { transform: rotate(3deg) translateY(-10px); }
    .gallery-photos .polaroid:nth-child(1) { transform: rotate(-3deg); }
}
.gallery-photos .polaroid { width: min(64vw, 260px); }

.letter-spread { text-align: left; }
.letter-note { max-width: 34rem; }
.letter-greeting {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 5vw, 1.8rem);
    color: var(--ink);
    margin-bottom: 1rem;
}
.letter-body p {
    font-size: clamp(1rem, 3.2vw, 1.1rem);
    line-height: 1.75;
    color: var(--ink-soft);
    margin-bottom: 1rem;
}
.letter-signoff {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--ink);
    margin-top: 1.2rem;
}

.wishes-spread { text-align: center; gap: 2.2rem; }
.wishes-title {
    font-size: clamp(2.2rem, 8vw, 3.2rem);
    color: var(--cream);
    text-shadow: 0 3px 10px rgba(0,0,0,.35);
}
.wishes-list {
    display: grid;
    gap: 1.1rem;
    width: 100%;
    max-width: 34rem;
}
.wish-item {
    position: relative;
    background: var(--paper);
    color: var(--ink-soft);
    font-family: var(--font-body);
    font-size: clamp(.98rem, 3.2vw, 1.08rem);
    line-height: 1.5;
    padding: 1.1rem 1.4rem;
    border-radius: 2px 8px 2px 8px;
    box-shadow: 0 10px 24px rgba(5,12,25,.35);
    text-align: left;
}
.wish-item::before {
    content: "";
    position: absolute;
    top: -8px; left: 18px;
    width: 20px; height: 20px;
    background: var(--accent-rose);
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    opacity: .9;
}
.wish-item:nth-child(3n+2)::before { background: var(--accent-lavender); }
.wish-item:nth-child(3n)::before { background: var(--accent-sky); }

.closing { text-align: center; }
.closing-inner {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.4rem;
    max-width: 32rem;
}
.closing-inner .name-patch { padding: clamp(1.6rem, 6vw, 2.6rem) clamp(2.2rem, 9vw, 4rem); }
.closing-inner .name-patch h2 {
    font-size: clamp(1.6rem, 6vw, 2.1rem);
    color: var(--paper-line);
}
.closing-inner .name-patch h1 {
    font-size: clamp(2.8rem, 12vw, 4.8rem);
}
.closing-message {
    font-family: var(--font-body);
    font-style: italic;
    font-size: clamp(1.05rem, 3.6vw, 1.3rem);
    color: var(--paper-line);
}
.closing-star { top: -6%; left: 6%; }
.closing-cloud { top: -8%; right: 4%; width: 68px; height: 68px; }
.closing-heart { bottom: 8%; right: 8%; }

[data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity var(--dur-slow) var(--ease-soft), transform var(--dur-slow) var(--ease-soft);
}
[data-reveal].in-view { opacity: 1; transform: translateY(0); }
.reveal-ready { opacity: 1; }


.polaroid--hero img { transition: transform 6s var(--ease-soft); }
.polaroid--hero.in-view img { transform: scale(1.06); }


.sticker { animation: floaty 6s ease-in-out infinite; }
.sticker--flower, .cover-heart1 { animation-delay: .8s; }
.sticker--star, .cover-star1 { animation-delay: 1.6s; }
@keyframes floaty {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(4deg); }
}


.theme-switcher {
    position: fixed;
    bottom: clamp(1rem, 4vw, 1.6rem);
    left: clamp(1rem, 4vw, 1.6rem);
    z-index: 50;
    display: flex;
    gap: 8px;
    background: var(--paper);
    padding: 8px;
    border-radius: 999px;
    box-shadow: 0 10px 24px rgba(0,0,0,.35);
}
.theme-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: var(--dot-color);
    padding: 0;
    transition: transform var(--dur-med) var(--ease-soft), border-color var(--dur-med) var(--ease-soft);
}
.theme-dot:hover { transform: scale(1.12); }
.theme-dot.is-active {
    border-color: var(--ink);
    transform: scale(1.15);
}

.music-toggle {
    position: fixed;
    bottom: clamp(1rem, 4vw, 1.6rem);
    right: clamp(1rem, 4vw, 1.6rem);
    z-index: 50;
    width: 52px; height: 52px;
    border-radius: 50%;
    border: none;
    background: var(--paper);
    box-shadow: 0 10px 24px rgba(0,0,0,.35);
    display: flex;
    align-items: center;
    justify-content: center;
}
.music-ring {
    position: absolute;
    inset: 4px;
    border: 1.5px dashed var(--ink-soft);
    border-radius: 50%;
    animation: spin 14s linear infinite;
}
.music-toggle.is-paused .music-ring { animation-play-state: paused; }
.music-icon { width: 20px; height: 20px; fill: var(--ink); position: relative; z-index: 1; }
.music-toggle.is-paused .music-icon { opacity: .45; }
@keyframes spin { to { transform: rotate(360deg); } }


.confetti-particle {
    position: fixed;
    top: 0; left: 0;
    z-index: 60;
    pointer-events: none;
    will-change: transform, opacity;
}

@media (min-width: 720px) {
    .spread, .gallery-spread, .closing, .cover { padding-left: clamp(3rem, 9vw, 7rem); }
}