/* undo.systems — light-academia broken-grid */

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

:root {
    --honey: #f0e8d8;
    --surface: #e8dcc8;
    --border: #b8a888;
    --teal: #5a8a88;
    --ink: #2a2418;
    --muted: #6a5e48;
    --pattern: #c8b898;
    --amber: #d8a848;
}

html, body {
    background: var(--honey);
    color: var(--ink);
    font-family: "Spectral", Georgia, serif;
    font-size: 17px;
    line-height: 1.8;
    overflow-x: hidden;
}

.page {
    width: 100%;
}

/* Entrance */
.entrance {
    min-height: 100vh;
    position: relative;
    padding: 80px 24px 120px;
    max-width: 1100px;
    margin: 0 auto;
}

.initial-cap {
    position: absolute;
    top: 80px;
    right: 8%;
    font-family: "JetBrains Mono", monospace;
    font-size: 200px;
    font-weight: 700;
    line-height: 0.85;
    color: var(--ink);
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid var(--border);
    background:
        repeating-linear-gradient(45deg, var(--pattern) 0 2px, transparent 0 20px),
        repeating-linear-gradient(-45deg, var(--pattern) 0 2px, transparent 0 20px),
        var(--surface);
    z-index: 1;
}

.title-block {
    position: absolute;
    left: 15%;
    top: 35%;
    font-family: "JetBrains Mono", monospace;
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    z-index: 2;
}

.title-line {
    display: inline-block;
}

.title-dot {
    color: var(--amber);
    display: inline-block;
}

.entrance-tagline {
    position: absolute;
    left: 15%;
    top: calc(35% + 120px);
    font-family: "EB Garamond", "Spectral", serif;
    font-style: italic;
    font-size: clamp(16px, 2vw, 22px);
    color: var(--muted);
    line-height: 1.5;
    max-width: 460px;
    z-index: 2;
}

.entrance-meta {
    position: absolute;
    left: 15%;
    bottom: 200px;
    font-family: "JetBrains Mono", monospace;
    font-size: 13px;
    color: var(--muted);
    letter-spacing: 0.08em;
    z-index: 2;
}

.meta-sep {
    margin: 0 10px;
    color: var(--border);
}

.tangle-line {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 60px;
    width: 100%;
    height: 100px;
    z-index: 0;
}

/* Cultural pattern divider */
.pattern-band {
    height: 80px;
    background:
        repeating-linear-gradient(45deg, var(--pattern) 0 2px, transparent 0 20px),
        repeating-linear-gradient(-45deg, var(--pattern) 0 2px, transparent 0 20px);
    background-color: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.pattern-band-alt {
    background:
        radial-gradient(circle at 50% 50%, var(--pattern) 2px, transparent 3px),
        radial-gradient(circle at 0% 0%, var(--pattern) 2px, transparent 3px),
        radial-gradient(circle at 100% 100%, var(--pattern) 2px, transparent 3px);
    background-size: 24px 24px;
    background-color: var(--honey);
}

/* Broken-grid sections */
.grid-section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 24px;
}

.grid-12 {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 0;
    position: relative;
}

.block {
    background: var(--honey);
    border: 1px solid var(--border);
    padding: 28px;
    position: relative;
    transition: border-radius 800ms ease;
    border-radius: 4px;
}

.block.morphed {
    border-radius: 20% 5% 15% 8% / 8% 15% 5% 20%;
}

/* Section: thesis */
.section-thesis .block-thesis {
    grid-column: 2 / span 6;
    grid-row: 1;
    background: var(--surface);
    z-index: 2;
}

.section-thesis .block-quote {
    grid-column: 6 / span 6;
    grid-row: 1;
    margin-top: 60px;
    background: var(--honey);
    border-color: var(--teal);
    z-index: 1;
}

.section-thesis .block-figure {
    grid-column: 4 / span 5;
    grid-row: 2;
    margin-top: -40px;
    background: var(--honey);
    z-index: 3;
}

/* Section: principles */
.section-principles .block-section-header {
    grid-column: 1 / span 5;
    grid-row: 1;
    background: transparent;
    border: none;
    padding: 0;
}

.section-principles .block-principle {
    grid-column: span 4;
    grid-row: 2;
    background: var(--surface);
}

.section-principles .block-principle[data-num="i"] {
    grid-column: 1 / span 5;
    grid-row: 2;
    background: var(--honey);
    z-index: 2;
}

.section-principles .block-principle[data-num="ii"] {
    grid-column: 5 / span 5;
    grid-row: 2;
    margin-top: 50px;
    background: var(--surface);
    z-index: 1;
}

.section-principles .block-principle[data-num="iii"] {
    grid-column: 3 / span 6;
    grid-row: 3;
    margin-top: -30px;
    background: var(--honey);
    z-index: 3;
}

.section-principles .block-margin {
    grid-column: 9 / span 4;
    grid-row: 3;
    background: transparent;
    border: none;
    border-left: 2px solid var(--border);
    padding-left: 16px;
    align-self: end;
    margin-bottom: 12px;
}

/* Section: code */
.section-code .block-code-header {
    grid-column: 2 / span 5;
    grid-row: 1;
    background: transparent;
    border: none;
    padding: 0;
}

.section-code .block-code {
    grid-column: 2 / span 7;
    grid-row: 2;
    background: var(--ink);
    color: var(--honey);
    font-family: "JetBrains Mono", monospace;
    font-size: 14px;
    line-height: 1.7;
    padding: 28px 32px;
    overflow-x: auto;
    z-index: 2;
    white-space: pre;
}

.section-code .block-side-note {
    grid-column: 7 / span 5;
    grid-row: 2;
    margin-top: 80px;
    background: var(--surface);
    z-index: 1;
}

.block-code .kw { color: var(--amber); }
.block-code .ty { color: var(--teal); }

/* Block content */
.block-eyebrow {
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.block-body {
    font-size: 17px;
    line-height: 1.8;
    color: var(--ink);
}

.block-body em {
    font-style: italic;
    color: var(--teal);
    font-weight: 600;
}

.block-body code {
    font-family: "JetBrains Mono", monospace;
    font-size: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 3px;
    color: var(--ink);
}

.drop-cap::first-letter {
    float: left;
    font-family: "EB Garamond", serif;
    font-size: 4em;
    line-height: 0.8;
    padding: 8px 12px;
    margin-right: 8px;
    margin-top: 4px;
    border: 2px solid var(--border);
    background: var(--surface);
    color: var(--ink);
    font-weight: 400;
}

.pull-quote {
    font-family: "EB Garamond", serif;
    font-style: italic;
    font-size: clamp(20px, 2.4vw, 26px);
    line-height: 1.5;
    color: var(--ink);
    margin-bottom: 12px;
}

.pull-attribution {
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.05em;
}

.figure-svg {
    width: 100%;
    height: auto;
    max-height: 200px;
    margin: 12px 0;
}

.figure-label {
    display: block;
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 8px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.figure-caption {
    font-family: "EB Garamond", serif;
    font-style: italic;
    font-size: 14px;
    color: var(--muted);
    margin-top: 8px;
}

.section-roman {
    font-family: "JetBrains Mono", monospace;
    font-size: 14px;
    color: var(--amber);
    margin-bottom: 8px;
    letter-spacing: 0.1em;
}

.section-title {
    font-family: "JetBrains Mono", monospace;
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.01em;
}

.principle-num {
    font-family: "EB Garamond", serif;
    font-style: italic;
    font-size: 28px;
    color: var(--teal);
    margin-bottom: 8px;
}

.principle-title {
    font-family: "JetBrains Mono", monospace;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--ink);
}

.margin-note {
    font-family: "EB Garamond", serif;
    font-style: italic;
    color: var(--muted);
    font-size: 14px;
}

.side-note-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    color: var(--amber);
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

/* Colophon */
.colophon {
    background: var(--surface);
    padding: 80px 24px 100px;
    border-top: 1px solid var(--border);
}

.colophon-inner {
    max-width: 800px;
    margin: 0 auto;
}

.colophon-title {
    font-family: "JetBrains Mono", monospace;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--ink);
}

.reading-list {
    list-style: none;
    border-top: 1px solid var(--border);
}

.reading-list li {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    align-items: baseline;
    transition: background 200ms ease;
    cursor: default;
}

.reading-list li:hover {
    background: var(--honey);
    padding-left: 8px;
    padding-right: 8px;
}

.reading-num {
    font-family: "JetBrains Mono", monospace;
    font-size: 13px;
    color: var(--amber);
}

.reading-title {
    font-family: "Spectral", serif;
    font-size: 18px;
    font-weight: 600;
}

.reading-attr {
    font-family: "EB Garamond", serif;
    font-style: italic;
    color: var(--muted);
    font-size: 15px;
}

.colophon-meta {
    margin-top: 40px;
    font-family: "EB Garamond", serif;
    font-style: italic;
    color: var(--muted);
    font-size: 14px;
    text-align: center;
}

/* Responsive */
@media (max-width: 860px) {
    .entrance {
        padding: 60px 24px 80px;
    }
    .initial-cap {
        position: relative;
        top: 0;
        right: 0;
        font-size: 120px;
        width: 140px;
        height: 140px;
        margin-bottom: 24px;
    }
    .title-block,
    .entrance-tagline,
    .entrance-meta {
        position: relative;
        left: 0;
        top: 0;
        margin-top: 24px;
    }
    .grid-12 {
        grid-template-columns: 1fr;
    }
    .block,
    .section-thesis .block-thesis,
    .section-thesis .block-quote,
    .section-thesis .block-figure,
    .section-principles .block-section-header,
    .section-principles .block-principle[data-num="i"],
    .section-principles .block-principle[data-num="ii"],
    .section-principles .block-principle[data-num="iii"],
    .section-principles .block-margin,
    .section-code .block-code-header,
    .section-code .block-code,
    .section-code .block-side-note {
        grid-column: 1 / -1;
        grid-row: auto;
        margin-top: 16px;
    }
}