/* ═══════════════════════════════════════════════════════════
   SHELTERS · shelters.space — Swiss brutalist scanner app
   ─ Continuity with ITAP 2084 (black/orange/#FF6B00)
   ─ Optimized for mobile-first touch targets
   ═══════════════════════════════════════════════════════════ */

:root {
  --ink: #000000;
  --paper: #ffffff;
  --accent: #FF6B00;
  --accent-dim: #b24b00;
  --gray-1: #f5f5f5;
  --gray-2: #e0e0e0;
  --gray-3: #666666;
  --gray-4: #1a1a1a;
  --success: #00c853;
  --warning: #ffb300;
  --error: #ff3d00;
  --font-display: "Barlow Condensed", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", Menlo, monospace;
  --safe-top: env(safe-area-inset-top, 0);
  --safe-bot: env(safe-area-inset-bottom, 0);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior: none;
}
body {
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bot);
  min-height: 100vh;
  min-height: 100dvh;
}

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
.hidden { display: none !important; }

/* ─── HEADER ─── */
.sc-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 2px solid var(--accent);
}
.sc-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.sc-brand:hover { text-decoration: none; }
.sc-brand-mark { color: var(--accent); font-size: 16px; }
.sc-brand-year { color: var(--accent); font-weight: 700; font-size: 14px; }
.sc-back {
  color: var(--paper);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--paper);
}
.sc-back:hover { background: var(--accent); color: var(--ink); border-color: var(--accent); text-decoration: none; }

/* ─── MAIN / HERO ─── */
.sc-main {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}
.sc-hero { margin: 24px 0 32px; }
.sc-hero-code {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gray-3);
  margin-bottom: 12px;
}
.sc-hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.9;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.sc-hero-line-1, .sc-hero-line-2, .sc-hero-line-3 {
  display: block;
  font-size: clamp(42px, 10vw, 72px);
}
.sc-hero-line-2 { color: var(--accent); }
.sc-hero-line-3 { font-weight: 700; font-size: clamp(20px, 4vw, 28px); color: var(--gray-3); margin-top: 8px; }
.sc-hero-subtitle {
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray-4);
  max-width: 560px;
}
.sc-hero-subtitle a { font-weight: 600; }

/* ─── DEVICE STATUS ─── */
.sc-device {
  border: 2px solid var(--ink);
  padding: 14px 16px;
  margin-bottom: 20px;
  background: var(--gray-1);
}
.sc-device-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}
.sc-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--warning);
  animation: sc-pulse 1.4s ease-in-out infinite;
}
.sc-status-dot.sc-ok { background: var(--success); animation: none; }
.sc-status-dot.sc-warn { background: var(--warning); animation: none; }
.sc-status-dot.sc-err { background: var(--error); animation: none; }
@keyframes sc-pulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
.sc-device-info {
  margin-top: 8px;
  font-size: 11px;
  color: var(--gray-3);
  line-height: 1.5;
}

/* ─── CTA ─── */
.sc-cta-wrap { margin-bottom: 32px; }

.sc-cta {
  display: block;
  width: 100%;
  background: var(--accent);
  color: var(--ink);
  border: 3px solid var(--ink);
  padding: 28px 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 28px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
  box-shadow: 6px 6px 0 var(--ink);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  text-decoration: none;
  cursor: pointer;
  min-height: 72px;
}
.sc-cta:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--ink);
  text-decoration: none;
}
.sc-cta:active {
  transform: translate(4px, 4px);
  box-shadow: 2px 2px 0 var(--ink);
}
.sc-cta:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
.sc-cta-note {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-top: 8px;
  opacity: 0.75;
}

.sc-cta-secondary {
  background: var(--paper);
  color: var(--ink);
}

/* QR code block (desktop) */
.sc-qr-block {
  border: 3px solid var(--ink);
  padding: 24px;
  text-align: center;
  background: var(--paper);
}
.sc-qr-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 24px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.sc-qr-sub {
  font-size: 12px;
  color: var(--gray-3);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.sc-qr-code-wrap {
  display: inline-block;
  padding: 12px;
  background: var(--paper);
  border: 2px solid var(--ink);
  margin-bottom: 16px;
}
.sc-qr-code-wrap svg, .sc-qr-code-wrap canvas {
  display: block;
  width: 220px;
  height: 220px;
}
.sc-qr-url {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
  padding: 6px 12px;
  background: var(--ink);
  display: inline-block;
}

/* ─── STEPS ─── */
.sc-steps {
  margin: 32px 0;
  border-top: 2px solid var(--ink);
  padding-top: 24px;
}
.sc-steps-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--accent);
}
.sc-steps-list { list-style: none; }
.sc-steps-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  grid-template-rows: auto auto;
  grid-column-gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-2);
}
.sc-steps-list li:last-child { border-bottom: none; }
.sc-step-num {
  grid-row: 1 / 3;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 28px;
  color: var(--accent);
  align-self: start;
  line-height: 1;
}
.sc-step-label {
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 13px;
}
.sc-step-desc {
  font-size: 12px;
  color: var(--gray-3);
  margin-top: 2px;
}

/* ─── COMPAT ─── */
.sc-compat {
  margin: 32px 0;
  border-top: 2px solid var(--ink);
  padding-top: 24px;
}
.sc-compat-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--accent);
}
.sc-compat-list { display: flex; flex-direction: column; gap: 10px; }
.sc-compat-item {
  display: grid;
  grid-template-columns: minmax(140px, 180px) 1fr;
  gap: 12px;
  padding: 12px;
  border-left: 4px solid var(--gray-3);
  background: var(--gray-1);
  align-items: center;
}
.sc-compat-item dt {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}
.sc-compat-item dd {
  font-size: 12px;
  color: var(--gray-3);
}
.sc-compat-best { border-left-color: var(--success); }
.sc-compat-good { border-left-color: var(--warning); }
.sc-compat-limited { border-left-color: var(--gray-3); }

/* ─── FOOTER ─── */
.sc-footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 2px solid var(--ink);
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-3);
}
.sc-footer-line { margin-bottom: 4px; }
.sc-footer a { color: var(--gray-4); }

/* ═══════════════════════════════════════════════════════════
   SCAN VIEW — WebXR AR mode (fullscreen camera overlay)
   ═══════════════════════════════════════════════════════════ */
.sc-scan {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: #000;
  overflow: hidden;
}
#sc-ar-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
}
.sc-scan-ui {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
  padding-top: calc(var(--safe-top) + 12px);
  padding-bottom: calc(var(--safe-bot) + 20px);
}
.sc-scan-ui > * { pointer-events: auto; }

.sc-scan-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 16px;
}
.sc-scan-exit {
  background: rgba(0, 0, 0, 0.7);
  color: var(--paper);
  border: 2px solid var(--paper);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.sc-scan-step {
  background: var(--accent);
  color: var(--ink);
  padding: 10px 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 2px solid var(--ink);
}

.sc-scan-reticle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}
.sc-reticle-inner {
  width: 72px;
  height: 72px;
  border: 3px solid var(--accent);
  border-radius: 50%;
  position: relative;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.5), 0 0 24px rgba(255, 107, 0, 0.6);
  animation: sc-reticle-breathe 2s ease-in-out infinite;
}
.sc-reticle-inner::before,
.sc-reticle-inner::after {
  content: '';
  position: absolute;
  background: var(--accent);
}
.sc-reticle-inner::before {
  top: 50%; left: -12px; right: -12px; height: 2px; transform: translateY(-50%);
}
.sc-reticle-inner::after {
  left: 50%; top: -12px; bottom: -12px; width: 2px; transform: translateX(-50%);
}
@keyframes sc-reticle-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}
.sc-reticle-hint {
  margin-top: 16px;
  background: rgba(0, 0, 0, 0.75);
  color: var(--paper);
  padding: 8px 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.sc-scan-points {
  position: absolute;
  left: 16px;
  bottom: calc(var(--safe-bot) + 130px);
  display: flex;
  gap: 6px;
}
.sc-point-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.75);
  border: 2px solid var(--paper);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.sc-point-chip.sc-set { border-color: var(--success); color: var(--success); }

.sc-scan-capture {
  align-self: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: transparent;
  border: 4px solid var(--paper);
  position: relative;
  padding: 0;
  transition: transform 0.12s ease;
}
.sc-scan-capture:active { transform: scale(0.9); }
.sc-capture-ring {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0.6;
}
.sc-capture-dot {
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: var(--accent);
  transition: background 0.15s ease;
}
.sc-scan-capture:active .sc-capture-dot {
  background: var(--paper);
}

/* ═══════════════════════════════════════════════════════════
   MANUAL VIEW — Camera + inputs
   ═══════════════════════════════════════════════════════════ */
.sc-manual {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--ink);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bot);
}
#sc-manual-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.35;
}

/* No-camera variant: brutalist grid pattern background, no webcam request */
.sc-manual--no-cam {
  /* Fine grid: two SVG lines at 1px, repeated every 40px */
  background-color: #0a0a0a;
  background-image:
    linear-gradient(rgba(255,107,0,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,107,0,0.07) 1px, transparent 1px);
  background-size: 40px 40px;
}
/* In no-cam mode, no backdrop blur needed — the bg is static */
.sc-manual--no-cam .sc-manual-ui {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.sc-manual-ui {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 16px;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.sc-manual-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.sc-manual-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--paper);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.sc-manual-inputs {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
  flex-grow: 1;
}
.sc-input-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sc-input-row label {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.sc-input-row input {
  width: 100%;
  padding: 18px 16px;
  background: rgba(0, 0, 0, 0.75);
  border: 2px solid var(--accent);
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 32px;
  letter-spacing: 0.02em;
  text-align: center;
  -webkit-appearance: none;
  appearance: none;
}
.sc-input-row input:focus {
  outline: none;
  background: var(--ink);
  border-color: var(--paper);
}

.sc-manual-hint {
  padding: 12px 14px;
  background: rgba(255, 107, 0, 0.1);
  border-left: 4px solid var(--accent);
  color: var(--paper);
  font-size: 12px;
  line-height: 1.5;
}
.sc-manual-hint strong { color: var(--accent); letter-spacing: 0.1em; }

.sc-manual-submit {
  width: 100%;
  padding: 22px;
  background: var(--accent);
  color: var(--ink);
  border: 3px solid var(--paper);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.12s ease;
}
.sc-manual-submit:active { transform: scale(0.98); }

/* ═══════════════════════════════════════════════════════════
   RESULT VIEW
   ═══════════════════════════════════════════════════════════ */
.sc-result {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
}
.sc-result-inner {
  max-width: 480px;
  width: 100%;
  text-align: center;
  padding: 32px 16px;
}
.sc-result-check {
  font-size: 72px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  animation: sc-check-pop 0.4s ease-out;
}
@keyframes sc-check-pop {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
.sc-result-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 40px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.sc-result-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gray-3);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.sc-result-dims {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.sc-dim-card {
  border: 2px solid var(--ink);
  padding: 14px 8px;
  background: var(--gray-1);
}
.sc-dim-label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gray-3);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.sc-dim-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 28px;
  color: var(--ink);
  line-height: 1;
}
.sc-dim-unit { font-size: 14px; color: var(--accent); }

/* Derived stats (surface / volume / capacity / air) */
.sc-result-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.sc-stat-card {
  border: 2px solid var(--ink);
  padding: 12px 6px;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.sc-stat-card--accent { background: var(--ink); color: var(--paper); }
.sc-stat-card--accent .sc-stat-label { color: var(--accent); }
.sc-stat-value {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  line-height: 1;
}
.sc-stat-unit {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.sc-stat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gray-3);
  text-transform: uppercase;
  margin-top: 4px;
}

/* SIA/OFPP interpretation card */
.sc-result-sia {
  border: 2px solid var(--ink);
  background: var(--gray-1);
  padding: 14px 14px 12px;
  margin-bottom: 24px;
  text-align: left;
}
.sc-sia-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.sc-sia-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--ink);
  padding: 4px 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 2px solid var(--ink);
}
.sc-sia-norm {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gray-3);
  text-transform: uppercase;
}
.sc-sia-desc {
  font-size: 13px;
  line-height: 1.45;
  margin: 0 0 6px;
  color: var(--ink);
}
.sc-sia-hint {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--gray-3);
  margin: 0;
}

/* Actions stack */
.sc-result-actions { display: flex; flex-direction: column; gap: 10px; }
.sc-result-btn {
  display: block;
  width: 100%;
  padding: 14px 16px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--ink);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  text-align: center;
}
.sc-result-btn:hover { background: var(--ink); color: var(--paper); }
.sc-result-btn:active { transform: scale(0.98); }
.sc-result-btn--primary {
  background: var(--accent);
  color: var(--ink);
  border-width: 3px;
  font-family: var(--font-display);
  font-size: 16px;
  padding: 18px 16px;
  box-shadow: 4px 4px 0 var(--ink);
}
.sc-result-btn--primary:hover {
  background: var(--accent);
  color: var(--ink);
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--ink);
}

/* Raw metadata footer */
.sc-result-raw {
  margin-top: 20px;
  padding: 10px;
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  word-break: break-all;
}

/* History disclosure */
.sc-result-history {
  margin-top: 16px;
  border: 2px solid var(--ink);
  text-align: left;
}
.sc-result-history-sum {
  list-style: none;
  cursor: pointer;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--gray-1);
  user-select: none;
}
.sc-result-history-sum::-webkit-details-marker { display: none; }
.sc-result-history-sum::before {
  content: '▸ ';
  display: inline-block;
  transition: transform 0.2s ease;
}
.sc-result-history[open] .sc-result-history-sum::before { transform: rotate(90deg); }
.sc-result-history-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 220px;
  overflow-y: auto;
  border-top: 2px solid var(--ink);
}
.sc-result-history-item {
  display: flex;
  flex-direction: column;
  padding: 10px 14px;
  border-bottom: 1px solid var(--gray-2);
  gap: 2px;
}
.sc-result-history-item:last-child { border-bottom: none; }
.sc-history-dims {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 14px;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.sc-history-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--gray-3);
  text-transform: uppercase;
}

/* Soft footer link to research site */
.sc-result-footer {
  margin-top: 24px;
  padding: 14px 10px;
  border-top: 2px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--gray-3);
  text-align: center;
}
.sc-result-footer-label {
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-right: 6px;
}
.sc-result-footer-link {
  color: var(--ink);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.sc-result-footer-link:hover { color: var(--accent); }
.sc-result-footer-desc {
  display: block;
  margin-top: 4px;
  color: var(--gray-3);
  font-size: 10px;
}

/* ═══════════════════════════════════════════════════════════
   TOAST / LOADER
   ═══════════════════════════════════════════════════════════ */
.sc-toast {
  position: fixed;
  bottom: calc(var(--safe-bot) + 20px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--accent);
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  max-width: 90vw;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}
.sc-toast.sc-err { border-color: var(--error); }

.sc-loader {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--paper);
}
.sc-loader-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: sc-spin 0.8s linear infinite;
}
@keyframes sc-spin { to { transform: rotate(360deg); } }
.sc-loader-label {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (min-width: 640px) {
  .sc-main { padding: 32px 24px 60px; }
  .sc-hero { margin: 40px 0 48px; }
}
@media (max-width: 480px) {
  .sc-result-stats { grid-template-columns: repeat(2, 1fr); }
  .sc-stat-value { font-size: 20px; }
}
@media (max-width: 380px) {
  .sc-cta { font-size: 22px; padding: 22px 14px; }
  .sc-result-dims { grid-template-columns: 1fr 1fr; }
  .sc-result-dims .sc-dim-card:nth-child(3) { grid-column: 1 / -1; }
  .sc-sia-head { flex-direction: column; align-items: flex-start; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition: none !important; }
}