:root {
    --linen: #f4f0e8;
    --soot: #1c1a17;
    --iron-gall: #7a7062;
    --vermillion: #c4432a;
    --seal-red: #8b2515;
    --ledger-blue: #2b4a6e;
    --gold-leaf: #b8943e;
    --walnut: #3d2e1f;
}

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

html {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--linen);
    color: var(--soot);
    font-family: 'Libre Baskerville', Georgia, serif;
    font-weight: 400;
    font-size: clamp(1rem, 1.2vw, 1.15rem);
    line-height: 1.85;
    overflow-x: hidden;
    position: relative;
}

/* Ink bleed texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    opacity: 0.03;
    filter: url(#inkBleed);
    background-color: var(--linen);
    mix-blend-mode: multiply;
}

.svg-filters {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* ===================== RULES ===================== */
.rule {
    width: 100%;
    height: 1px;
    background-color: var(--iron-gall);
}

.rule--solid {
    border: none;
    background-color: var(--iron-gall);
}

.rule--dashed {
    background: none;
    border: none;
    height: 1px;
    background-image: repeating-linear-gradient(
        to right,
        var(--iron-gall) 0,
        var(--iron-gall) 8px,
        transparent 8px,
        transparent 14px
    );
}

.rule--heavy {
    height: 2px;
    margin-bottom: 2rem;
}

.rule--full {
    width: 100%;
}

/* ===================== LEDGER OPENING ===================== */
.ledger-opening {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
}

.opening-domain {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(1rem, 2vw, 1.4rem);
    font-weight: 400;
    letter-spacing: 0.04em;
    font-variant: small-caps;
    color: var(--soot);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, calc(-50% - 2rem));
}

.opening-rule {
    width: 80%;
    height: 2px;
    position: absolute;
    top: 50%;
    left: 10%;
}

.opening-rule .rule-line {
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: drawLine 2.5s cubic-bezier(0.25, 0.1, 0.25, 1.0) forwards;
    animation-delay: 0.3s;
}

@keyframes drawLine {
    to {
        stroke-dashoffset: 0;
    }
}

.opening-character {
    font-family: 'Noto Serif KR', serif;
    font-weight: 700;
    font-size: 8vw;
    color: var(--soot);
    position: absolute;
    top: 50%;
    left: 15%;
    transform: translateY(1rem);
}

/* Border trace around character */
.opening-character::after {
    content: '';
    position: absolute;
    top: -0.15em;
    left: -0.2em;
    right: -0.2em;
    bottom: -0.1em;
    border: 1px solid transparent;
    animation: borderTrace 3s ease forwards;
    animation-delay: 1s;
}

@keyframes borderTrace {
    0% { border-color: transparent; }
    25% { border-top-color: var(--iron-gall); border-right-color: transparent; border-bottom-color: transparent; border-left-color: transparent; }
    50% { border-top-color: var(--iron-gall); border-right-color: var(--iron-gall); border-bottom-color: transparent; border-left-color: transparent; }
    75% { border-top-color: var(--iron-gall); border-right-color: var(--iron-gall); border-bottom-color: var(--iron-gall); border-left-color: transparent; }
    100% { border-color: var(--iron-gall); }
}

/* ===================== INDEX CORRIDOR ===================== */
.index-corridor {
    padding: 8rem 6rem;
}

.index-entry {
    margin-bottom: 4rem;
    cursor: default;
    position: relative;
}

.index-entry .index-summary {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 300;
    font-size: 0.78rem;
    color: var(--iron-gall);
    opacity: 0;
    transition: opacity 300ms ease 100ms;
    margin-top: 0.8rem;
    letter-spacing: 0.02em;
}

.index-entry:hover .index-summary {
    opacity: 1;
}

.index-entry:hover {
    margin-bottom: 6rem;
    transition: margin-bottom 400ms ease-out;
}

.index-line {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.8rem;
}

.index-subject {
    font-family: 'DM Serif Display', serif;
    font-weight: 400;
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    letter-spacing: 0.04em;
    color: var(--soot);
}

.index-date {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 400;
    font-size: 0.78rem;
    letter-spacing: 0.02em;
    color: var(--iron-gall);
}

/* ===================== WEIGHING CHAMBER ===================== */
.weighing-chamber {
    padding: 8rem 0;
}

.chamber-grid {
    display: grid;
    grid-template-columns: 20% 55% 25%;
    min-height: 100vh;
}

.chamber-margin-left {
    padding: 2rem 1.5rem;
}

.margin-annotation {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 3rem;
}

.annotation-dot {
    display: inline-block;
    width: 4px;
    height: 4px;
    min-width: 4px;
    background-color: var(--vermillion);
    border-radius: 50%;
    margin-top: 0.5rem;
}

.annotation-text {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 300;
    font-size: 0.78rem;
    letter-spacing: 0.02em;
    color: var(--iron-gall);
    line-height: 1.5;
}

.chamber-content {
    padding: 0 3rem;
}

.review-heading {
    font-family: 'DM Serif Display', serif;
    font-weight: 400;
    font-size: clamp(1.5rem, 4vw, 3.5rem);
    letter-spacing: 0.04em;
    color: var(--soot);
    margin-bottom: 1.5rem;
}

.review-paragraph {
    margin-bottom: 2.4em;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 400ms ease, transform 400ms ease;
}

.review-paragraph.visible {
    opacity: 1;
    transform: translateY(0);
}

.chamber-verdict {
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding-top: 4rem;
}

.verdict-stamp {
    opacity: 0;
    transform: scale(0.92);
    filter: blur(1px);
    transition: opacity 350ms ease, transform 350ms ease, filter 350ms ease;
}

.verdict-stamp.stamped {
    opacity: 1;
    transform: scale(1.0);
    filter: blur(0px);
}

.weight-mark {
    font-family: 'DM Serif Display', serif;
    font-weight: 400;
    font-size: 12vw;
    color: var(--soot);
    opacity: 0.08;
    line-height: 1;
    text-align: right;
    width: 100%;
    overflow: hidden;
    direction: rtl;
}

/* ===================== SECTION RULE ===================== */
.section-rule-container {
    padding: 0 6rem;
}

/* ===================== SEAL SECTION ===================== */
.seal-section {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.seal-mark {
    opacity: 0.7;
}

.seal-meta {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.02em;
    color: var(--iron-gall);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
    .chamber-grid {
        grid-template-columns: 65% 35%;
    }

    .chamber-margin-left {
        display: none;
    }
}

@media (max-width: 768px) {
    .chamber-grid {
        grid-template-columns: 1fr;
    }

    .chamber-margin-left {
        display: block;
        padding: 2rem;
    }

    .chamber-verdict {
        flex-direction: row;
        justify-content: center;
        padding: 2rem;
    }

    .weight-mark {
        font-size: 20vw;
    }

    .index-corridor {
        padding: 4rem 2rem;
    }

    .section-rule-container {
        padding: 0 2rem;
    }

    .chamber-content {
        padding: 0 2rem;
    }
}