/* =========================================================
   double-standard.org
   Brutalist tribunal / stacked monoliths / warm earth palette
   ========================================================= */

:root {
    /* Palette (from DESIGN.md) */
    --concrete:   #E8DCCF;   /* primary surface  - Raw Concrete */
    --carbon:     #1E1E1E;   /* counter surface  - Carbon Slab */
    --oxide:      #C1440E;   /* accent           - Oxide Red */
    --foundry:    #1A1714;   /* text on light    - Foundry Black */
    --bleached:   #F2EDE7;   /* text on dark     - Bleached Stone */
    --sienna:     #9B4D2B;   /* secondary accent - Burnt Sienna */
    --ash:        #6B6158;   /* muted/metadata   - Kiln Ash */
    --ochre:      #D4943A;   /* highlight        - Desert Ochre */
    --rule:       #2C2C2C;   /* hard borders */

    /* Type stack */
    --font-display: "Zilla Slab", Georgia, serif;
    --font-body:    "Roboto Slab", Georgia, serif;
    --font-label:   "Roboto Condensed", "Arial Narrow", sans-serif;

    /* Grid */
    --grid-cols: 12;
    --gutter: 24px;
    --pad-x: clamp(24px, 5vw, 80px);
}

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

html, body {
    background: var(--concrete);
    color: var(--foundry);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.65;
    letter-spacing: 0.01em;
    overflow-x: hidden;
}

body {
    position: relative;
    min-height: 100vh;
}

/* Concrete grit -- SVG noise overlay */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 100;
    opacity: 0.08;
    filter: url(#concrete-noise);
    background: #fff;
    mix-blend-mode: multiply;
}

/* =========================================================
   Scroll progress bar (left edge, oxide red)
   ========================================================= */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 3px;
    height: 0%;
    background: var(--oxide);
    z-index: 200;
    transition: height 80ms linear;
}

/* =========================================================
   Brand stamp (top-left fixed label)
   ========================================================= */
.brand-stamp {
    position: fixed;
    top: 18px;
    left: 24px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--bleached);
    mix-blend-mode: difference;
    z-index: 150;
    pointer-events: none;
}

/* =========================================================
   Slab / monolith shell
   ========================================================= */
.slab {
    position: relative;
    width: 100%;
    min-height: 90vh;
    border-bottom: 4px solid var(--rule);
    padding: clamp(60px, 9vh, 120px) var(--pad-x);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.slab-inner {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(var(--grid-cols), 1fr);
    gap: var(--gutter);
}

/* Light slabs */
.slab-monument,
.slab-declaration,
.slab-evidence,
.slab-weight {
    background: var(--concrete);
    color: var(--foundry);
}

/* Dark slabs */
.slab-contradiction,
.slab-verdict {
    background: var(--carbon);
    color: var(--bleached);
}

/* =========================================================
   Section labels (institutional stamp / accent type)
   ========================================================= */
.section-label {
    display: inline-block;
    font-family: var(--font-label);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--oxide);
    margin-bottom: 24px;
}

/* =========================================================
   Geometric primitives
   1. circle           - "the standard"
   2. broken-circle    - "the double standard" (45deg arc removed)
   3. rectangle        - structure / authority
   ========================================================= */
.shape { display: block; }

.shape.circle {
    width: var(--size, 200px);
    height: var(--size, 200px);
    border: var(--stroke, 2px) solid var(--oxide);
    border-radius: 50%;
    background: transparent;
}

.shape.broken-circle {
    width: var(--size, 200px);
    height: var(--size, 200px);
    border: var(--stroke, 2px) solid var(--oxide);
    border-radius: 50%;
    background: transparent;
    /* 45-degree wedge removed (gap faces lower-left, toward text) */
    -webkit-mask: conic-gradient(from 202.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
            mask: conic-gradient(from 202.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
}

.shape.rectangle {
    width: var(--w, 100px);
    height: var(--h, 4px);
    background: var(--oxide);
}

/* Absolutely placed accent rectangles */
.accent-rect,
.weight-rect {
    position: absolute;
    top: var(--top, 0);
    left: var(--left, 0);
}
.shape.rectangle.alt { background: var(--sienna); }

/* The ONLY animation: zoom-focus on entry */
.shape-zoom {
    transform: scale(0.85);
    transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}
.shape-zoom.in-view { transform: scale(1.0); }

/* =========================================================
   1. OPENING MONUMENT
   ========================================================= */
.slab-monument { min-height: 100vh; }

.monument-grid { align-items: center; }

.monument-text  { grid-column: 1 / span 8; }
.monument-shape {
    grid-column: 9 / span 4;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    position: relative;
}

.monument-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3rem, 10vw, 8rem);
    line-height: 0.95;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--foundry);
}
.monument-title .dot { color: var(--oxide); }

.monument-sub {
    margin-top: clamp(20px, 3vh, 40px);
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    max-width: 38ch;
    color: var(--ash);
}

/* =========================================================
   2 / 3. DECLARATION & CONTRADICTION PAIR
   ========================================================= */
.pair-grid { align-items: center; }

.pair-text  { grid-column: 1 / span 8; }
.pair-shape {
    grid-column: 9 / span 4;
    position: relative;
    height: clamp(220px, 32vw, 460px);
}

.pair-shape .shape.circle,
.pair-shape .shape.broken-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: center;
    transform: translate(-50%, -50%) scale(0.85);
}
.pair-shape .shape-zoom.in-view {
    transform: translate(-50%, -50%) scale(1);
}

.pair-heading {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2rem, 6vw, 4.5rem);
    line-height: 0.98;
    letter-spacing: 0.02em;
}
.pair-body {
    margin-top: clamp(20px, 3vh, 36px);
    max-width: 48ch;
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    color: var(--ash);
}
.slab-contradiction .pair-body { color: #c9c2b9; }

/* Mirror the broken-circle gap so it faces text on contradiction slab */
.slab-contradiction .pair-shape .shape.broken-circle {
    -webkit-mask: conic-gradient(from 112.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
            mask: conic-gradient(from 112.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
}

/* =========================================================
   4. EVIDENCE WALL
   ========================================================= */
.slab-evidence { min-height: 100vh; }

.evidence-grid { align-items: start; }

.evidence-header {
    grid-column: 1 / span 8;
    margin-bottom: 40px;
}
.evidence-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.75rem, 4.5vw, 3.25rem);
    line-height: 1;
    letter-spacing: 0.02em;
}
.evidence-list {
    grid-column: 1 / span 8;
    list-style: none;
}
.evidence-list li {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: clamp(10px, 1.6vh, 18px) 0;
    border-bottom: 1px solid var(--ash);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.4rem, 3.4vw, 2.4rem);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.05;
}
.evidence-list li:last-child { border-bottom: none; }
.bullet-rect {
    display: inline-block;
    width: clamp(28px, 4vw, 56px);
    height: 4px;
    background: var(--oxide);
    flex-shrink: 0;
}
.evidence-text { color: var(--foundry); }
.evidence-shape {
    grid-column: 9 / span 4;
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* =========================================================
   5. THE WEIGHT
   ========================================================= */
.slab-weight { min-height: 80vh; }

.weight-grid {
    grid-template-columns: 1fr;
    text-align: left;
    align-items: center;
}
.weight-grid .section-label { grid-column: 1; }

.weight-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3.5rem, 14vw, 11rem);
    line-height: 0.9;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--foundry);
    margin-top: 12px;
}

.weight-frame {
    position: relative;
    margin-top: clamp(40px, 6vh, 80px);
    width: 100%;
    height: clamp(180px, 22vh, 260px);
}

/* =========================================================
   6. THE MIRROR (split halves, no slab-inner)
   ========================================================= */
.slab-mirror {
    padding: 0;
    min-height: 90vh;
    display: flex;
    align-items: stretch;
    flex-direction: row;
    border-bottom: 4px solid var(--rule);
}
.mirror-half {
    flex: 1 1 50%;
    padding: clamp(60px, 8vh, 100px) var(--pad-x);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    min-height: 90vh;
}
.mirror-light {
    background: var(--concrete);
    color: var(--foundry);
    border-right: 4px solid var(--rule);
}
.mirror-dark {
    background: var(--carbon);
    color: var(--bleached);
}
.mirror-heading {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: 0.95;
    letter-spacing: 0.02em;
    margin-bottom: 24px;
}
.mirror-body {
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    max-width: 32ch;
    color: var(--ash);
}
.mirror-dark .mirror-body { color: #c9c2b9; }
.mirror-shape {
    margin-top: clamp(40px, 6vh, 80px);
    align-self: flex-end;
}
.mirror-dark .mirror-shape .shape.broken-circle {
    -webkit-mask: conic-gradient(from 112.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
            mask: conic-gradient(from 112.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
}

/* =========================================================
   7. THE VERDICT
   ========================================================= */
.slab-verdict {
    min-height: 100vh;
    border-bottom: none;
}
.verdict-grid { align-items: center; }
.verdict-text  { grid-column: 1 / span 8; }
.verdict-shape {
    grid-column: 9 / span 4;
    position: relative;
    height: clamp(280px, 40vw, 600px);
}
.verdict-shape .shape {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.85);
}
.verdict-shape .shape-zoom.in-view {
    transform: translate(-50%, -50%) scale(1);
}
.verdict-shape .shape.broken-circle {
    -webkit-mask: conic-gradient(from 112.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
            mask: conic-gradient(from 112.5deg, transparent 0deg, transparent 45deg, #000 45deg, #000 360deg);
}
.verdict-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.4rem, 6.5vw, 5rem);
    line-height: 0.98;
    letter-spacing: 0.02em;
    color: var(--bleached);
}
.verdict-body {
    margin-top: clamp(24px, 3vh, 36px);
    max-width: 48ch;
    color: #c9c2b9;
    font-size: clamp(1rem, 1.4vw, 1.2rem);
}
.verdict-rule {
    margin-top: clamp(40px, 5vh, 60px);
    width: clamp(120px, 18vw, 240px);
    height: 4px;
    background: var(--oxide);
}
.verdict-foot {
    margin-top: 18px;
    font-family: var(--font-label);
    font-size: 11px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--ochre);
}

/* Return-to-top triangle (sole nav affordance) */
.return-top {
    position: absolute;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: transparent;
    border: 2px solid var(--oxide);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background 120ms linear;
}
.return-top:hover {
    background: var(--sienna);
}
.return-triangle {
    display: block;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 12px solid var(--oxide);
}

/* =========================================================
   Responsive: collapse 12-col grid on small screens
   ========================================================= */
@media (max-width: 820px) {
    .monument-text,
    .monument-shape,
    .pair-text,
    .pair-shape,
    .evidence-header,
    .evidence-list,
    .evidence-shape,
    .verdict-text,
    .verdict-shape {
        grid-column: 1 / -1;
    }
    .monument-shape,
    .pair-shape,
    .evidence-shape,
    .verdict-shape {
        margin-top: 40px;
        justify-content: flex-start;
        height: auto;
        min-height: 240px;
    }
    .pair-shape .shape.circle,
    .pair-shape .shape.broken-circle,
    .verdict-shape .shape {
        position: relative;
        top: auto;
        left: auto;
        transform: scale(0.85);
    }
    .pair-shape .shape-zoom.in-view,
    .verdict-shape .shape-zoom.in-view {
        transform: scale(1);
    }
    .slab-mirror { flex-direction: column; }
    .mirror-light {
        border-right: none;
        border-bottom: 4px solid var(--rule);
    }
    .mirror-half { min-height: 70vh; }
    .weight-title { font-size: clamp(2.5rem, 16vw, 6rem); }
}