:root {
    --moon-hanji: #F7EEDC;
    --wet-ink: #17120E;
    --cinnabar: #B8322A;
    --indigo: #233B6E;
    --mugwort: #6F7F55;
    --brass: #D8A642;
    --celadon: #C9D8C0;
    --paper-shadow: rgba(23, 18, 14, 0.18);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    color: var(--wet-ink);
    background: var(--moon-hanji);
    font-family: "Gowun Batang", serif;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(circle at var(--lantern-x, 72%) var(--lantern-y, 22%), rgba(216, 166, 66, 0.36), transparent 28vw),
        radial-gradient(circle at 18% 78%, rgba(201, 216, 192, 0.58), transparent 32vw),
        linear-gradient(90deg, rgba(111, 127, 85, 0.16), transparent 13%, transparent 87%, rgba(35, 59, 110, 0.12));
    mix-blend-mode: multiply;
}

.name-scroll {
    position: relative;
    isolation: isolate;
}

.paper-field {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background:
        repeating-linear-gradient(88deg, rgba(23, 18, 14, 0.025) 0 1px, transparent 1px 9px),
        repeating-linear-gradient(176deg, rgba(111, 127, 85, 0.035) 0 1px, transparent 1px 13px),
        var(--moon-hanji);
}

.paper-field::before,
.paper-field::after {
    content: "";
    position: absolute;
    inset: -15%;
    background-image:
        radial-gradient(circle, rgba(23, 18, 14, 0.08) 0 1px, transparent 1.5px),
        radial-gradient(circle, rgba(111, 127, 85, 0.09) 0 0.8px, transparent 1.3px);
    background-size: 31px 29px, 43px 37px;
    opacity: 0.35;
    animation: paperMotes 22s linear infinite;
}

.paper-field::after {
    transform: rotate(7deg);
    opacity: 0.2;
    animation-duration: 36s;
}

.fiber {
    position: absolute;
    height: 1px;
    width: 44vw;
    background: linear-gradient(90deg, transparent, rgba(111, 127, 85, 0.36), transparent);
    transform-origin: left center;
}

.fiber-a { top: 18%; left: 8%; transform: rotate(-8deg); }
.fiber-b { top: 57%; right: 5%; transform: rotate(4deg); }
.fiber-c { bottom: 14%; left: 24%; transform: rotate(12deg); }

.registry-spine {
    position: fixed;
    left: clamp(18px, 3vw, 48px);
    top: 8vh;
    bottom: 8vh;
    z-index: 4;
    width: 42px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
    border-left: 1px solid rgba(111, 127, 85, 0.44);
    border-right: 1px solid rgba(111, 127, 85, 0.16);
    color: var(--mugwort);
    font-family: "Noto Sans KR", sans-serif;
    font-size: 12px;
    letter-spacing: 0.18em;
    writing-mode: vertical-rl;
}

.seal-orbit {
    position: fixed;
    right: clamp(18px, 4vw, 58px);
    top: clamp(18px, 5vh, 48px);
    z-index: 8;
    width: 74px;
    height: 74px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(184, 50, 42, 0.24);
    border-radius: 50%;
    animation: orbitTurn 18s linear infinite;
}

.corner-seal,
.large-seal,
.certificate-seal {
    font-family: "Song Myung", serif;
    color: var(--cinnabar);
    border: 3px solid var(--cinnabar);
    background:
        radial-gradient(circle, rgba(184, 50, 42, 0.16), transparent 58%),
        rgba(247, 238, 220, 0.72);
    box-shadow: inset 0 0 18px rgba(184, 50, 42, 0.14);
}

.corner-seal {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    font-size: 28px;
    transform: rotate(-8deg);
}

.persistent-name {
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 3;
    width: min(52vw, 620px);
    aspect-ratio: 1;
    transform: translate(-50%, -50%) scale(var(--name-scale, 1));
    opacity: var(--name-opacity, 0.94);
    pointer-events: none;
    transition: opacity 350ms ease;
}

.chamber-grid {
    position: absolute;
    inset: 10%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    border: 1px solid rgba(35, 59, 110, 0.28);
    background:
        linear-gradient(90deg, transparent calc(50% - 0.5px), rgba(35, 59, 110, 0.24) calc(50% - 0.5px) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
        linear-gradient(0deg, transparent calc(50% - 0.5px), rgba(35, 59, 110, 0.24) calc(50% - 0.5px) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
        rgba(201, 216, 192, 0.24);
    box-shadow: 0 28px 80px rgba(35, 59, 110, 0.11);
}

.jamo {
    display: grid;
    place-items: center;
    color: var(--wet-ink);
    font-family: "Song Myung", serif;
    font-size: clamp(5rem, 15vw, 13rem);
    line-height: 0.85;
    filter: blur(var(--ink-blur, 1.5px));
    transform: translate(var(--drift-x, 0), var(--drift-y, 0)) rotate(var(--jamo-rot, 0deg));
    opacity: 0.86;
    transition: filter 700ms ease, transform 900ms cubic-bezier(.2,1.45,.31,1), opacity 600ms ease;
}

.jamo-geul {
    font-size: clamp(3.8rem, 9vw, 8rem);
}

.name-caption {
    position: absolute;
    left: 50%;
    bottom: 2%;
    transform: translateX(-50%);
    margin: 0;
    font-family: "Cormorant Garamond", "Inter", serif;
    color: var(--indigo);
    font-variant: small-caps;
    letter-spacing: 0.3em;
    font-size: clamp(0.8rem, 1.2vw, 1rem);
    white-space: nowrap;
}

.ink-dots {
    position: fixed;
    left: 50%;
    bottom: 24px;
    z-index: 9;
    transform: translateX(-50%);
    display: flex;
    gap: 14px;
    align-items: center;
}

.ink-dots button {
    width: 13px;
    height: 13px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(23, 18, 14, 0.36);
    cursor: pointer;
    position: relative;
    transition: transform 300ms ease, background 300ms ease;
}

.ink-dots button.active {
    background: var(--cinnabar);
    transform: scale(1.55);
}

.ink-dots span {
    position: absolute;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%);
    font-family: "Noto Sans KR", sans-serif;
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--indigo);
    opacity: 0;
    transition: opacity 250ms ease;
    white-space: nowrap;
}

.ink-dots button.active span,
.ink-dots button:hover span {
    opacity: 1;
}

.scene {
    min-height: 100vh;
    position: relative;
    display: grid;
    align-items: center;
    padding: 11vh clamp(24px, 7vw, 110px);
    overflow: hidden;
}

.scene::after {
    content: "";
    position: absolute;
    inset: 5vh clamp(12px, 5vw, 82px);
    border: 1px solid rgba(111, 127, 85, 0.18);
    pointer-events: none;
    clip-path: polygon(0 0, 98% 0, 100% 8%, 100% 100%, 2% 100%, 0 92%);
}

.ceremony-text {
    position: relative;
    z-index: 5;
    max-width: 610px;
    padding: clamp(20px, 3vw, 42px);
    background: rgba(247, 238, 220, 0.68);
    box-shadow: 0 24px 70px rgba(23, 18, 14, 0.08);
    backdrop-filter: blur(2px);
}

.ceremony-text.narrow {
    margin-left: clamp(48px, 11vw, 160px);
    align-self: end;
    margin-bottom: 7vh;
    background: transparent;
    box-shadow: none;
}

.left-tab {
    margin-left: auto;
    margin-right: 7vw;
    transform: rotate(-1.4deg);
}

.right-tab {
    justify-self: end;
    margin-right: 5vw;
    transform: rotate(1.2deg);
}

.sound-panel {
    margin-left: 11vw;
    max-width: 540px;
}

.seal-text {
    margin-left: 7vw;
}

.final-note {
    justify-self: end;
    align-self: end;
    margin-right: 7vw;
    margin-bottom: 12vh;
    background: transparent;
    box-shadow: none;
}

.kicker {
    margin: 0 0 16px;
    color: var(--mugwort);
    font-family: "Noto Sans KR", "Inter", sans-serif;
    font-size: 12px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

h1,
h2 {
    margin: 0;
    font-family: "Song Myung", "Gowun Batang", serif;
    font-weight: 400;
    letter-spacing: -0.04em;
    color: var(--wet-ink);
}

h1 {
    max-width: 980px;
    font-size: clamp(4rem, 11vw, 10rem);
    line-height: 0.83;
}

h2 {
    font-size: clamp(2.2rem, 5.7vw, 6.6rem);
    line-height: 0.9;
}

.ceremony-text p:not(.kicker) {
    max-width: 520px;
    font-size: clamp(1rem, 1.45vw, 1.35rem);
    line-height: 1.85;
    color: rgba(23, 18, 14, 0.78);
}

.breath-ring {
    position: absolute;
    left: 50%;
    top: 42%;
    width: 42vw;
    height: 42vw;
    min-width: 330px;
    min-height: 330px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, transparent 0 54%, rgba(201, 216, 192, 0.36) 55%, transparent 65%);
    animation: breathe 6s ease-in-out infinite;
}

.brush-dot {
    position: absolute;
    left: 50%;
    top: 44%;
    z-index: 6;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--wet-ink);
    box-shadow: 0 0 0 9px rgba(23, 18, 14, 0.08), 0 0 38px rgba(23, 18, 14, 0.28);
    transform: translate(-50%, -50%) scaleX(var(--dot-stretch, 1));
    animation: blinkInk 2.4s ease-in-out infinite;
}

.vertical-note {
    position: absolute;
    right: 13vw;
    top: 19vh;
    z-index: 5;
    writing-mode: vertical-rl;
    font-family: "Song Myung", serif;
    font-size: clamp(2.5rem, 6vw, 6rem);
    color: rgba(35, 59, 110, 0.34);
}

.brush-trail {
    position: absolute;
    inset: 18vh 6vw auto 9vw;
    height: 42vh;
    z-index: 2;
    filter: drop-shadow(0 16px 18px rgba(23, 18, 14, 0.1));
}

.brush-trail path {
    fill: none;
    stroke: var(--wet-ink);
    stroke-width: 38;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 980;
    stroke-dashoffset: var(--path-offset, 980);
    opacity: 0.82;
}

.floating-jamo {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-jamo span {
    position: absolute;
    font-family: "Song Myung", serif;
    font-size: clamp(4rem, 10vw, 10rem);
    color: rgba(23, 18, 14, 0.26);
    animation: driftJamo 12s ease-in-out infinite;
}

.floating-jamo span:nth-child(1) { left: 12%; top: 18%; animation-delay: -2s; }
.floating-jamo span:nth-child(2) { right: 14%; top: 15%; animation-delay: -5s; }
.floating-jamo span:nth-child(3) { left: 22%; bottom: 12%; animation-delay: -7s; }
.floating-jamo span:nth-child(4) { right: 24%; bottom: 18%; animation-delay: -1s; }
.floating-jamo span:nth-child(5) { left: 4%; top: 54%; animation-delay: -9s; }
.floating-jamo span:nth-child(6) { right: 6%; top: 48%; animation-delay: -4s; }

.house-diagram {
    position: absolute;
    left: 12vw;
    top: 18vh;
    width: min(48vw, 580px);
    aspect-ratio: 1;
    z-index: 4;
}

.syllable-square {
    position: absolute;
    inset: 16%;
    display: grid;
    place-items: center;
    background: rgba(201, 216, 192, 0.52);
    border: 2px solid rgba(35, 59, 110, 0.56);
    box-shadow: 22px 22px 0 rgba(111, 127, 85, 0.12), -18px -18px 0 rgba(216, 166, 66, 0.12);
}

.syllable-square span {
    font-family: "Song Myung", serif;
    font-size: clamp(8rem, 25vw, 20rem);
    line-height: 0.8;
}

.beam {
    position: absolute;
    padding: 8px 14px;
    font-family: "Noto Sans KR", sans-serif;
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--indigo);
    background: rgba(247, 238, 220, 0.72);
    border: 1px solid rgba(35, 59, 110, 0.2);
}

.roof { left: 11%; top: 7%; width: 67%; transform: rotate(-6deg); }
.wall { right: 2%; top: 31%; writing-mode: vertical-rl; transform: rotate(4deg); }
.floor { left: 19%; bottom: 7%; width: 58%; transform: rotate(3deg); }

.paper-tabs {
    position: absolute;
    right: 10vw;
    bottom: 12vh;
    z-index: 5;
    display: grid;
    gap: 12px;
}

.paper-tabs span,
.pronunciation-ribbon {
    display: inline-block;
    padding: 10px 18px;
    color: var(--indigo);
    background: rgba(201, 216, 192, 0.68);
    border-left: 3px solid var(--mugwort);
    font-family: "Noto Sans KR", "Inter", sans-serif;
    font-size: 13px;
    letter-spacing: 0.05em;
    box-shadow: 0 12px 32px rgba(35, 59, 110, 0.1);
}

.ribbon-field {
    position: absolute;
    right: 9vw;
    top: 22vh;
    z-index: 5;
    display: grid;
    gap: 24px;
    transform: rotate(-2deg);
}

.pronunciation-ribbon {
    min-width: 280px;
    border-left-color: var(--brass);
    animation: ribbonFloat 5s ease-in-out infinite;
}

.pronunciation-ribbon:nth-child(2) { margin-left: 70px; animation-delay: -1.6s; }
.pronunciation-ribbon:nth-child(3) { margin-left: 18px; animation-delay: -3.2s; }

.moon-window {
    position: absolute;
    right: 15vw;
    bottom: 12vh;
    width: 28vw;
    height: 28vw;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(247, 238, 220, 0.9), rgba(216, 166, 66, 0.12) 58%, transparent 60%);
    color: rgba(35, 59, 110, 0.22);
    font-family: "Song Myung", serif;
    font-size: 24vw;
}

.seal-button {
    margin-top: 20px;
    padding: 12px 18px;
    border: 1px solid var(--cinnabar);
    background: rgba(184, 50, 42, 0.08);
    color: var(--cinnabar);
    font-family: "Cormorant Garamond", "Inter", serif;
    font-size: 18px;
    font-variant: small-caps;
    letter-spacing: 0.16em;
    cursor: pointer;
}

.seal-stage {
    position: absolute;
    right: 13vw;
    top: 18vh;
    z-index: 5;
    width: min(42vw, 520px);
    height: min(42vw, 520px);
    display: grid;
    place-items: center;
}

.large-seal {
    width: 46%;
    height: 46%;
    display: grid;
    place-items: center;
    font-size: clamp(5rem, 12vw, 11rem);
    transform: translateY(var(--seal-y, -72px)) scale(var(--seal-scale, 1));
    transition: transform 380ms cubic-bezier(.2,1.35,.3,1), filter 280ms ease;
    z-index: 2;
}

.seal-stage.pressing .large-seal {
    filter: blur(0.5px);
}

.seal-shadow {
    position: absolute;
    left: 50%;
    top: 58%;
    width: 35%;
    height: 12%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: rgba(23, 18, 14, 0.16);
    filter: blur(18px);
}

.seal-impression {
    position: absolute;
    left: 50%;
    top: 58%;
    width: 42%;
    height: 42%;
    display: grid;
    place-items: center;
    transform: translate(-50%, -50%) rotate(-4deg) scale(var(--impression-scale, 0.2));
    opacity: var(--impression-opacity, 0);
    color: var(--cinnabar);
    border: 5px double var(--cinnabar);
    font-family: "Song Myung", serif;
    font-size: clamp(2.6rem, 7vw, 6rem);
    background-image: radial-gradient(circle, rgba(184, 50, 42, 0.22), transparent 68%);
    filter: url(#none) blur(var(--impression-blur, 9px));
    transition: transform 650ms ease, opacity 650ms ease, filter 850ms ease;
}

.seal-stage.stamped .seal-impression {
    --impression-scale: 1;
    --impression-opacity: 0.9;
    --impression-blur: 0.4px;
}

.certificate {
    position: absolute;
    left: 13vw;
    top: 10vh;
    z-index: 5;
    width: min(35vw, 430px);
    min-height: 74vh;
    padding: 56px 38px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background:
        linear-gradient(90deg, rgba(111, 127, 85, 0.16), transparent 8%, transparent 92%, rgba(111, 127, 85, 0.1)),
        rgba(247, 238, 220, 0.82);
    border: 1px solid rgba(35, 59, 110, 0.22);
    box-shadow: 0 34px 90px rgba(23, 18, 14, 0.18);
    transform: rotate(-1.1deg);
}

.certificate::before {
    content: "";
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(184, 50, 42, 0.24);
}

.certificate-label {
    font-family: "Cormorant Garamond", "Inter", serif;
    font-variant: small-caps;
    letter-spacing: 0.22em;
    color: var(--mugwort);
}

.certificate h2 {
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-size: clamp(4rem, 8vw, 8rem);
    letter-spacing: 0.04em;
}

.certificate-seal {
    width: 72px;
    height: 72px;
    display: grid;
    place-items: center;
    margin-top: 24px;
    font-size: 42px;
    transform: rotate(8deg);
}

.fold {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(23, 18, 14, 0.18);
}

.fold-top { top: 18%; }

.domain-mark {
    position: absolute;
    right: 8vw;
    top: 16vh;
    z-index: 5;
    font-family: "Cormorant Garamond", "Inter", serif;
    font-size: clamp(2rem, 5vw, 5.8rem);
    font-variant: small-caps;
    letter-spacing: 0.18em;
    color: var(--indigo);
    transform: rotate(90deg);
    transform-origin: right top;
}

@keyframes paperMotes {
    from { transform: translate3d(0, 0, 0); }
    to { transform: translate3d(38px, 27px, 0); }
}

@keyframes orbitTurn {
    to { transform: rotate(360deg); }
}

@keyframes breathe {
    0%, 100% { transform: translate(-50%, -50%) scale(0.88); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.12); opacity: 0.9; }
}

@keyframes blinkInk {
    0%, 100% { opacity: 0.35; transform: translate(-50%, -50%) scale(0.72); }
    50% { opacity: 1; transform: translate(-50%, -50%) scaleX(var(--dot-stretch, 1)) scaleY(1.18); }
}

@keyframes driftJamo {
    0%, 100% { transform: translate3d(0, 0, 0) rotate(-9deg); }
    50% { transform: translate3d(18px, -34px, 0) rotate(11deg); }
}

@keyframes ribbonFloat {
    0%, 100% { transform: translateY(0) rotate(1deg); }
    50% { transform: translateY(-14px) rotate(-1deg); }
}

@media (max-width: 820px) {
    .registry-spine { display: none; }
    .persistent-name { width: 82vw; opacity: 0.28; }
    .scene { padding: 10vh 22px 16vh; }
    .ceremony-text,
    .ceremony-text.narrow,
    .left-tab,
    .right-tab,
    .sound-panel,
    .seal-text,
    .final-note {
        margin: 0;
        justify-self: stretch;
        transform: none;
    }
    h1 { font-size: clamp(3.4rem, 18vw, 5.5rem); }
    h2 { font-size: clamp(2.4rem, 12vw, 4rem); }
    .vertical-note,
    .ribbon-field,
    .paper-tabs,
    .domain-mark { display: none; }
    .house-diagram,
    .seal-stage,
    .certificate {
        position: relative;
        left: auto;
        right: auto;
        top: auto;
        width: 86vw;
        margin: 4vh auto;
    }
    .certificate { min-height: 58vh; }
    .moon-window { width: 62vw; height: 62vw; right: -12vw; }
}