/* =========================================================
   THOMAS® Brand page — monochrome
   ========================================================= */

.brand-section { background: var(--paper); }
.brand-section:nth-of-type(even) { background: var(--paper-2); }
.brand-section + .brand-section { border-top: 1px solid var(--line); }
.brand-lede { color: var(--muted); font-size: 1.05rem; max-width: 60ch; margin-bottom: 50px; }

/* ---------- Palette ---------- */
.swatch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 12px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.swatch { padding: 36px 26px 26px; min-height: 200px; display: flex; flex-direction: column; justify-content: flex-end; font-family: var(--font-body); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: transform .35s var(--ease); }
.swatch:hover { transform: scale(1.02); position: relative; z-index: 2; }
.swatch__hex { font-family: var(--font-display); font-size: 1.8rem; font-weight: 400; letter-spacing: -0.01em; opacity: .6; margin-bottom: auto; }
.swatch__name { font-size: 1.05rem; font-weight: 600; letter-spacing: .02em; }
.swatch__use { font-size: 0.84rem; font-weight: 400; opacity: .75; margin-top: 4px; }

.brand-callout { margin-top: 36px; padding: 24px 28px; border-left: 3px solid var(--ink); background: var(--paper); border-top: 1px solid var(--line); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.brand-callout p { color: var(--text); font-size: 1rem; line-height: 1.6; }
.brand-callout strong { color: var(--ink); }
.brand-callout em { font-family: var(--font-serif); font-style: italic; color: var(--ink); }
.brand-callout code { background: var(--paper-3); padding: 2px 7px; font-size: 0.88em; color: var(--ink); }

/* ---------- Type ---------- */
.type-specimen { padding: 44px 0; border-top: 1px solid var(--line); }
.type-specimen:first-of-type { border-top: 0; }
.type-specimen__meta { display: flex; gap: 24px; flex-wrap: wrap; align-items: baseline; margin-bottom: 22px; font-family: var(--font-body); }
.type-specimen__name { font-family: var(--font-display); font-weight: 400; color: var(--ink); font-size: 1.4rem; letter-spacing: .02em; text-transform: uppercase; }
.type-specimen__role { color: var(--muted); font-weight: 500; font-size: 0.92rem; }
.type-specimen__weight { color: var(--muted); font-weight: 500; font-size: 0.78rem; letter-spacing: .15em; text-transform: uppercase; margin-left: auto; }
.type-specimen__sample { color: var(--ink); padding: 8px 0 4px; }

/* ---------- Logo ---------- */
.logo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 30px 0 50px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.logo-cell { padding: 60px 30px 30px; display: flex; flex-direction: column; align-items: center; justify-content: space-between; min-height: 240px; gap: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.logo-cell--dark { background: var(--ink); }
.logo-cell--light { background: var(--paper); }
.logo-cell--gold { background: var(--paper-2); }
.logo-display { font-family: var(--font-display); font-weight: 400; font-size: clamp(2.2rem, 5vw, 3.2rem); letter-spacing: .04em; text-transform: uppercase; }
.logo-display sup { font-size: 0.6em; vertical-align: super; }
.logo-cell--dark .logo-display { color: var(--invert-text); }
.logo-cell--dark .logo-display sup { color: var(--invert-text); }
.logo-display--dark { color: var(--ink); }
.logo-display--dark sup { color: var(--ink); }
.logo-display--ink { color: var(--ink); }
.logo-display--ink sup { color: var(--ink); }
.logo-label { font-family: var(--font-body); font-weight: 600; font-size: 0.78rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.logo-cell--dark .logo-label { color: var(--invert-muted); }

.rules { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.rule { padding: 32px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); }
.rule h4 { font-family: var(--font-display); font-weight: 400; font-size: 1.4rem; color: var(--ink); margin-bottom: 10px; text-transform: uppercase; letter-spacing: -0.005em; }
.rule p { color: var(--muted); font-size: 0.96rem; line-height: 1.55; }
.rule code { background: var(--paper-3); padding: 2px 6px; font-size: 0.88em; color: var(--ink); }

/* ---------- Voice ---------- */
.voice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.voice-card { padding: 36px 32px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.voice-card--do { background: var(--paper); }
.voice-card--dont { background: var(--paper-2); }
.voice-card__label { display: block; font-family: var(--font-body); font-weight: 700; font-size: 0.78rem; letter-spacing: .25em; text-transform: uppercase; margin-bottom: 20px; }
.voice-card--do .voice-card__label { color: var(--ink); }
.voice-card--dont .voice-card__label { color: var(--muted); }
.voice-card ul { list-style: none; padding: 0; margin: 0; }
.voice-card li { padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--text); font-size: 1rem; line-height: 1.5; }
.voice-card li:last-child { border-bottom: 0; }
.voice-card--dont li { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--muted); }

/* ---------- Components ---------- */
.components-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.component { padding: 34px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); }
.component__label { display: block; font-family: var(--font-body); font-weight: 700; font-size: 0.78rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); margin-bottom: 20px; }
.component__demo { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.component__demo.stats { display: grid; gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.component__demo .stat { padding: 24px 14px; }
.component__demo .stat__num { font-size: 2rem; }
.component__demo .stat__label { font-size: 0.78rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .swatch-grid, .logo-grid, .rules, .voice-grid, .components-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .swatch-grid, .logo-grid, .rules, .voice-grid, .components-grid { grid-template-columns: 1fr; }
  .type-specimen__meta { flex-direction: column; gap: 6px; }
  .type-specimen__weight { margin-left: 0; }
}