:root {
  --bg: #faf9f5;
  --bg-warm: #f5f3ee;
  --surface: #ffffff;
  --text: #151514;
  --text-muted: rgba(21, 21, 20, 0.65);
  --text-soft: rgba(21, 21, 20, 0.45);
  --accent: #cb795d;
  --accent-hover: #b86a4f;
  --accent-soft: rgba(203, 121, 93, 0.12);
  --accent-border: rgba(203, 121, 93, 0.35);
  --border: rgba(21, 21, 20, 0.1);
  --shadow-sm: 0 2px 8px rgba(21, 21, 20, 0.06);
  --shadow-md: 0 8px 30px rgba(21, 21, 20, 0.08);
  --shadow-lg: 0 20px 50px rgba(21, 21, 20, 0.1);
  --radius: 12px;
  --radius-lg: 16px;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;
  --danger: #c0392b;
  --warn: #b8860b;
  --success: #2d6a4f;
  --max-width: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

code {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.88em;
  background: rgba(21, 21, 20, 0.05);
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
}

/* ── Header ── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text);
}

.brand-mark { color: var(--accent); flex-shrink: 0; }

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  align-items: center;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(21, 21, 20, 0.75);
  transition: color 0.15s;
}

.site-nav a:hover { color: var(--accent); }

/* ── Hero ── */
.hero {
  padding: 3rem 1.5rem 4rem;
  text-align: center;
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5.5vw, 4.5rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  color: var(--text);
}

.hero-accent { color: var(--text); }

.hero-lede {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.pill {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
}

.pill-warn {
  border-color: rgba(184, 134, 11, 0.3);
  color: var(--warn);
  background: rgba(184, 134, 11, 0.06);
}

.pill-accent {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-soft);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-sans);
  font-size: 0.925rem;
  font-weight: 500;
  padding: 0.75rem 1.35rem;
  border-radius: 8px;
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fcfbf8;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}

.btn-card {
  width: 100%;
  justify-content: center;
  margin-top: auto;
  background: transparent;
  color: var(--accent);
  border-color: var(--accent-border);
  font-size: 0.875rem;
  padding: 0.65rem 1rem;
}

.btn-card:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.btn-icon { flex-shrink: 0; }

/* ── Main section ── */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.section-head {
  text-align: center;
  margin-bottom: 2rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.section-lede {
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
  font-size: 0.975rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

select {
  font-family: var(--font-sans);
  font-size: 0.925rem;
  padding: 0.55rem 2rem 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}

/* ── Score cards (solution-card style) ── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem 1.5rem;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-align: center;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1.5px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.85rem;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.asi-id {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}

.class-pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.class-A2 { color: var(--danger); border-color: rgba(192, 57, 43, 0.25); }
.class-A1 { color: var(--warn); border-color: rgba(184, 134, 11, 0.25); }
.class-A0 { color: var(--success); border-color: rgba(45, 106, 79, 0.25); }

.card-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
  line-height: 1.55;
  flex: 1;
}

.score-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
  text-align: left;
}

.score-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
}

.score-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.score-value {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
}

.score-value.mode1 { color: var(--success); }
.score-value.candidate { color: var(--accent); }

.bar {
  height: 4px;
  border-radius: 999px;
  background: rgba(21, 21, 20, 0.08);
  overflow: hidden;
  margin-top: 0.5rem;
}

.bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #d4a088);
  border-radius: 999px;
}

.timeline {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: left;
  padding: 0.75rem;
  background: var(--bg-warm);
  border-radius: 8px;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.timeline strong {
  color: var(--text);
  font-weight: 600;
}

.overlay {
  display: block;
  margin-top: 0.35rem;
  color: var(--accent);
  font-weight: 600;
}

/* ── Detail panel ── */
.detail {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(21, 21, 20, 0.45);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem;
  overflow-y: auto;
}

.detail.hidden { display: none; }

.detail-card {
  position: relative;
  width: min(900px, 100%);
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  margin: auto;
}

.detail-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text-muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.detail-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 2rem 1rem 0;
  padding-right: 2rem;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-bottom: 1rem;
  font-size: 0.925rem;
  color: var(--text-muted);
}

.detail-meta strong { color: var(--text); }

.detail-ssvc {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.75rem 1rem;
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.detail pre {
  overflow: auto;
  max-height: 420px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 10px;
  font-size: 0.78rem;
  line-height: 1.45;
  margin: 0;
}

.loading {
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  padding: 3rem;
}

.error {
  color: var(--danger);
  background: rgba(192, 57, 43, 0.06);
  border: 1px solid rgba(192, 57, 43, 0.2);
  border-radius: 10px;
  padding: 1rem;
}

/* ── Footer ── */
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
}

.site-footer a:hover { text-decoration: underline; }

.footer-brand {
  margin-top: 0.75rem;
  font-weight: 500;
}

/* ── Calculator ── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.muted { color: var(--text-muted); font-weight: 400; }
.small { font-size: 0.82rem; }
.block { display: block; margin-top: 0.25rem; }

.hero-compact { padding: 1.5rem 1.5rem 2.25rem; }
.hero-compact .hero-title { font-size: clamp(2rem, 4.5vw, 3.25rem); }
.hero-compact .hero-lede { margin-bottom: 1.25rem; }

.calculator { margin-bottom: 4rem; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1rem 1.25rem;
  margin: 0 0 1rem;
  min-width: 0;
}

.panel-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}

:where(button, input, select, summary, a):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.presets-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.25rem 1rem;
  margin-bottom: 0.65rem;
}

.preset-status {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.preset-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.5rem;
}

.preset {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  text-align: left;
  font: inherit;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.preset:hover { border-color: var(--accent); }

.preset[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.preset-id {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 0.95rem;
}

.preset-name {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.vector-form {
  display: grid;
  grid-template-columns: 1.3fr 1fr auto;
  gap: 0.75rem;
  align-items: end;
}

.vector-form .inline-error { grid-column: 1 / -1; margin: 0; }

input[type="text"] {
  width: 100%;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.85rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}

.calc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 1rem;
  align-items: start;
}

.metric-panel legend,
.metric-panel > summary {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0 0.25rem;
}

.metric-panel > summary {
  cursor: pointer;
  padding: 0;
}

details.metric-panel[open] > summary { margin-bottom: 0.75rem; }

.metric-panel legend { float: left; width: 100%; margin-bottom: 0.75rem; }
.metric-panel legend + * { clear: both; }

.metric-groups {
  display: grid;
  gap: 0.9rem;
}

.metric-subgroup {
  display: grid;
  gap: 0.6rem;
  padding-top: 0.25rem;
}

.metric-subgroup + .metric-subgroup {
  border-top: 1px solid var(--border);
  padding-top: 0.85rem;
}

.subgroup-title {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.metric-group {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 0.25rem 0.75rem;
  align-items: center;
}

.metric-name {
  font-size: 0.9rem;
  font-weight: 500;
}

.hint-tip {
  position: fixed;
  z-index: 200;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  background: var(--text);
  color: #faf9f5;
  font-size: 0.82rem;
  line-height: 1.45;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}

.hint-tip[hidden] { display: none; }

[data-hint] { cursor: help; }
.opt[data-hint] { cursor: pointer; }

.opt.hint-open,
.preset.hint-open { border-color: var(--accent); }

/* Signals that the name carries an explanation. */
.metric-name[data-hint],
.field-label[data-hint],
.decision-row dt[data-hint],
.score-label[data-hint] {
  text-decoration: underline dotted rgba(21, 21, 20, 0.28);
  text-underline-offset: 3px;
}

.metric-name abbr {
  text-decoration: none;
  font-size: 0.72rem;
  color: var(--text-soft);
  font-family: ui-monospace, monospace;
}

.options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.opt {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  font: inherit;
  font-size: 0.84rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.opt:hover { border-color: var(--accent); }

.opt[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fcfbf8;
}

.opt-code {
  font-family: ui-monospace, monospace;
  font-size: 0.7rem;
  opacity: 0.6;
}

.metric-desc {
  grid-column: 2;
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  cursor: pointer;
}

.toggle input { accent-color: var(--accent); width: 1rem; height: 1rem; }

.decision-fields {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

.cve-details {
  display: grid;
  gap: 0.75rem;
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
}

.cve-details > summary {
  cursor: pointer;
  font-weight: 500;
  font-size: 0.92rem;
}

.cve-details[open] > summary { margin-bottom: 0.75rem; }
.cve-details > * + * { margin-top: 0.75rem; }

.result-panel {
  position: sticky;
  top: 1rem;
}

.result-card { margin: 0; }

.engine-status {
  margin: 0;
  color: var(--text-muted);
  font-style: italic;
}

.score-line {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.result-score {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.05;
}

.rating {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.rating-critical { color: #fff; background: var(--danger); border-color: var(--danger); }
.rating-high { color: var(--danger); border-color: rgba(192, 57, 43, 0.35); }
.rating-medium { color: var(--warn); border-color: rgba(184, 134, 11, 0.35); }
.rating-low, .rating-none { color: var(--success); border-color: rgba(45, 106, 79, 0.35); }

.result-facts {
  display: grid;
  gap: 0.4rem;
  margin: 1rem 0 0.25rem;
}

.result-facts > div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 0.5rem;
  align-items: baseline;
}

.result-facts dt,
.decision-row dt {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

.result-facts dd,
.decision-row dd {
  margin: 0;
  font-size: 0.9rem;
}

.class-AX { color: var(--text-muted); }

.vector-out {
  display: grid;
  gap: 0.4rem;
  margin: 0.75rem 0;
}

.vector-row {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.vector-row code {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 0.74rem;
  padding: 0.35rem 0.5rem;
}

.btn-copy {
  font: inherit;
  font-size: 0.75rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  cursor: pointer;
}

.btn-copy:hover { border-color: var(--accent); color: var(--accent); }

.btn-block { width: 100%; justify-content: center; }

.decision-result {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.decision-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.05rem;
}

.decision-facts {
  display: grid;
  gap: 0.75rem;
  margin: 0 0 0.5rem;
}

.decision-row dd { margin-top: 0.15rem; }

.decision-result p { margin: 0.35rem 0 0; }

.timeline-key {
  display: inline-block;
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.05rem 0.4rem;
  border-radius: 4px;
  background: var(--bg-warm);
  border: 1px solid var(--border);
}

.timeline-key.accent {
  background: var(--accent-soft);
  border-color: var(--accent-border);
  color: var(--accent);
}

.raw-json { margin-top: 1rem; }

.raw-json summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.raw-json pre {
  overflow: auto;
  max-height: 360px;
  font-size: 0.72rem;
  line-height: 1.4;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
}

.inline-error {
  color: var(--danger);
  background: rgba(192, 57, 43, 0.06);
  border: 1px solid rgba(192, 57, 43, 0.2);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  font-size: 0.88rem;
  margin: 0.5rem 0 0;
}

.score-box-full { margin-bottom: 1rem; text-align: left; }

.card-actions {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 0.5rem;
  margin-top: auto;
}

.card-actions .btn {
  justify-content: center;
  white-space: nowrap;
  padding-inline: 0.6rem;
}

.card { cursor: default; }

@media (max-width: 980px) {
  .calc-layout { grid-template-columns: 1fr; }
  .result-panel { position: static; order: -1; }
}

@media (max-width: 640px) {
  .hero-compact .hero-lede { font-size: 0.95rem; }
  .preset-list {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 140px;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }
  .vector-form { grid-template-columns: 1fr; }
  .metric-group { grid-template-columns: 1fr; }
  .metric-desc { grid-column: 1; }
  .panel { padding: 0.9rem; }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav { gap: 0.75rem 1rem; }

  .hero { padding: 2rem 1rem 3rem; }

  .score-row { grid-template-columns: 1fr; }

  .grid { grid-template-columns: 1fr; }
}