/* ─── Theme system + stone palette ─────────────────────────────────── */
:root,
[data-theme="light"] {
  --bg: #f7f4ec;          /* marble cream */
  --bg-1: #ede8db;        /* pearl */
  --bg-2: #e0d9c5;        /* sand */
  --line: rgba(40,30,20,0.10);
  --line-2: rgba(40,30,20,0.20);
  --fg: #1a1612;          /* obsidian text */
  --fg-2: #4a423a;
  --fg-3: #8a7e72;
  --accent: #d4810d;      /* amber stone */
  --c-ai:   #0e7c5c;      /* emerald */
  --c-sci:  #6841b0;      /* amethyst */
  --c-spc:  #b03562;      /* garnet */
  --c-biz:  #b8721a;      /* tiger eye */
  --c-tech: #0d6e7c;      /* turquoise */
  --c-mkt:  #c2410c;      /* carnelian */
  --shadow: 0 6px 24px rgba(40,30,20,0.08);
  --shadow-lg: 0 12px 40px rgba(40,30,20,0.12);
}
[data-theme="dark"] {
  --bg: #14110d;          /* dark obsidian */
  --bg-1: #1f1a14;
  --bg-2: #2a2218;
  --line: rgba(245,235,215,0.10);
  --line-2: rgba(245,235,215,0.18);
  --fg: #f5ebd7;
  --fg-2: #c5b89e;
  --fg-3: #7a6d5d;
  --accent: #f5b14a;
  --c-ai:   #34d399;
  --c-sci:  #a78bfa;
  --c-spc:  #f472b6;
  --c-biz:  #fbbf24;
  --c-tech: #22d3ee;
  --c-mkt:  #fb923c;
  --shadow: 0 6px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.55);
}
[data-theme="cyber"] {
  --bg: #07060f;
  --bg-1: #110e1f;
  --bg-2: #1a1530;
  --line: rgba(0,255,200,0.18);
  --line-2: rgba(0,255,200,0.32);
  --fg: #e8fff8;
  --fg-2: #a0e8d4;
  --fg-3: #4d8a78;
  --accent: #00ffc8;
  --c-ai:   #00ffc8;
  --c-sci:  #ff00d0;
  --c-spc:  #ff8a00;
  --c-biz:  #ffe000;
  --c-tech: #00d4ff;
  --c-mkt:  #ff00aa;
  --shadow: 0 6px 24px rgba(0,255,200,0.12);
  --shadow-lg: 0 12px 40px rgba(0,255,200,0.18);
}

:root {
  --serif: "Fraunces", "Charter", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: "JetBrains Mono", "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --maxw: 1280px;
  --pad: 40px;
  --r-sm: 12px;
  --r-md: 20px;
  --r-lg: 32px;
  --r-pill: 999px;
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }
html { scroll-behavior: smooth; }
html, body {
  margin: 0; padding: 0; color: var(--fg);
  font-family: var(--sans); line-height: 1.5;
  background: var(--bg);
  transition: background-color .2s, color .2s;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ─── Masthead ──────────────────────────────────────────────────────── */
.masthead {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  padding: 0 var(--pad);
}
.masthead__inner {
  display: flex; justify-content: space-between; align-items: center;
  max-width: var(--maxw); margin: 0 auto; padding: 22px 0;
}
.masthead__brand { display: flex; align-items: center; gap: 14px; }
.masthead__sigil {
  font-family: var(--mono); font-size: 28px; color: var(--accent); font-weight: 600;
  width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-1); border-radius: 50%;
  border: 1px solid var(--line);
}
.masthead__title {
  font-family: var(--serif); font-size: 30px; letter-spacing: -0.025em;
  font-weight: 600; line-height: 1;
  font-variation-settings: "SOFT" 30, "opsz" 144;
}
.masthead__tagline {
  font-family: var(--mono); font-size: 10px; color: var(--fg-3);
  letter-spacing: 0.18em; margin-top: 4px; text-transform: uppercase;
}

/* Theme switcher (pill) */
.theme-switch {
  display: inline-flex; padding: 4px;
  background: var(--bg-1); border-radius: var(--r-pill);
  border: 1px solid var(--line);
}
.theme-btn {
  background: transparent; border: none; width: 36px; height: 36px;
  font-size: 16px; color: var(--fg-3); border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all .2s;
}
.theme-btn:hover { color: var(--fg); }
.theme-btn--on { background: var(--accent); color: var(--bg); }

/* Categories — pills */
.cats {
  display: flex; gap: 8px; max-width: var(--maxw); margin: 0 auto;
  padding: 14px 0 22px; overflow-x: auto;
}
.cat {
  font-family: var(--mono); font-size: 11px; padding: 9px 16px;
  color: var(--fg-2); letter-spacing: 0.1em; text-transform: uppercase;
  white-space: nowrap; transition: all .2s; font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-1); border-radius: var(--r-pill);
  border: 1px solid var(--line);
}
.cat:hover { background: var(--bg-2); color: var(--fg); transform: translateY(-1px); }
.cat__n {
  font-size: 10px; padding: 2px 7px; border-radius: var(--r-pill); color: var(--fg-3);
  background: var(--bg); font-weight: 700;
}
.cat--ai:hover   { background: var(--c-ai); color: #fff; border-color: var(--c-ai); }
.cat--ai:hover .cat__n   { background: rgba(255,255,255,0.25); color: #fff; }
.cat--sci:hover  { background: var(--c-sci); color: #fff; border-color: var(--c-sci); }
.cat--sci:hover .cat__n  { background: rgba(255,255,255,0.25); color: #fff; }
.cat--spc:hover  { background: var(--c-spc); color: #fff; border-color: var(--c-spc); }
.cat--spc:hover .cat__n  { background: rgba(255,255,255,0.25); color: #fff; }
.cat--tech:hover { background: var(--c-tech); color: #fff; border-color: var(--c-tech); }
.cat--tech:hover .cat__n { background: rgba(255,255,255,0.25); color: #fff; }
.cat--biz:hover  { background: var(--c-biz); color: #fff; border-color: var(--c-biz); }
.cat--biz:hover .cat__n  { background: rgba(255,255,255,0.25); color: #fff; }
.cat--mkt:hover  { background: var(--c-mkt); color: #fff; border-color: var(--c-mkt); }
.cat--mkt:hover .cat__n  { background: rgba(255,255,255,0.25); color: #fff; }
.cat--about { margin-left: auto; }

/* ─── Featured ──────────────────────────────────────────────────────── */
.feature { max-width: var(--maxw); margin: 16px auto 64px; padding: 0 var(--pad); }
.feature__link {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 0;
  min-height: 460px;
  background:
    linear-gradient(160deg, rgba(255,255,255,0.4) 0%, transparent 35%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.6),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    0 4px 12px rgba(40,30,20,0.08),
    0 24px 50px -12px rgba(40,30,20,0.22);
  transition: box-shadow .35s cubic-bezier(.2,.8,.2,1), transform .35s cubic-bezier(.2,.8,.2,1);
  position: relative;
}
[data-theme="dark"] .feature__link {
  background:
    linear-gradient(160deg, rgba(255,255,255,0.04) 0%, transparent 35%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.07),
    inset 0 -1px 0 rgba(0,0,0,0.5),
    0 4px 12px rgba(0,0,0,0.5),
    0 28px 60px -12px rgba(0,0,0,0.7);
}
.feature__link:hover {
  transform: translateY(-3px);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.8),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    0 8px 20px rgba(40,30,20,0.10),
    0 36px 70px -12px rgba(40,30,20,0.30);
}
.feature__main {
  padding: 56px 48px; display: flex; flex-direction: column; justify-content: center;
}
.feature__pill {
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  padding: 7px 16px; background: var(--bg);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  color: var(--accent); margin-bottom: 28px; text-transform: uppercase;
  border-radius: var(--r-pill); font-weight: 700;
  border: 1px solid var(--line);
}
.feature__h1 {
  font-family: var(--serif);
  font-size: clamp(32px, 4.4vw, 52px); margin: 0 0 24px;
  font-weight: 500; letter-spacing: -0.025em; line-height: 1.05;
  font-variation-settings: "SOFT" 30, "opsz" 144;
}
.feature__lead { color: var(--fg-2); font-size: 17px; line-height: 1.65; margin: 0 0 32px; max-width: 600px; }
.feature__metabar { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.feature__date, .feature__read {
  font-family: var(--mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.05em;
}

/* Region list (feature side) */
.feature__side {
  padding: 48px 36px; background: var(--bg-2);
  display: flex; flex-direction: column; justify-content: center;
}
.feature__regions { display: flex; flex-direction: column; gap: 4px; }
.region-row {
  display: grid; grid-template-columns: 32px 1fr auto; gap: 12px; align-items: center;
  padding: 11px 18px;
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  background: linear-gradient(180deg, var(--bg), var(--bg-1));
  border-radius: var(--r-pill);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.7),
    inset 0 -1px 0 rgba(0,0,0,0.05),
    0 1px 2px rgba(40,30,20,0.06);
  transition: transform .25s, box-shadow .25s;
}
.region-row:hover {
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.85),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    0 4px 12px rgba(40,30,20,0.12);
}
[data-theme="dark"] .region-row {
  background: linear-gradient(180deg, var(--bg-1), var(--bg-2));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.07),
    inset 0 -1px 0 rgba(0,0,0,0.4),
    0 1px 2px rgba(0,0,0,0.3);
}
.region-row__flag { font-size: 18px; }
.region-row__tag {
  font-family: var(--mono); font-size: 10px; color: var(--fg-3);
  letter-spacing: 0.04em; text-align: right; font-weight: 500;
}
.region-row--accent {
  background: var(--accent); color: #fff; border-color: var(--accent);
  font-weight: 700;
}
.region-row--accent .region-row__tag { color: rgba(255,255,255,0.85); }

/* Dots */
.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--fg-3); }
.dot--live { background: var(--accent); box-shadow: 0 0 0 0 rgba(212,129,13,0.55); animation: pulse 2s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(212,129,13,0.5); }
  70% { box-shadow: 0 0 0 8px rgba(212,129,13,0); }
  100% { box-shadow: 0 0 0 0 rgba(212,129,13,0); }
}

/* ─── Badges — pill shape ──────────────────────────────────────────── */
.badge {
  font-family: var(--mono); font-size: 10px; padding: 5px 12px;
  letter-spacing: 0.12em; font-weight: 700; text-transform: uppercase;
  color: #fff; display: inline-block; border-radius: var(--r-pill);
}
.badge--ai   { background: var(--c-ai); }
.badge--sci  { background: var(--c-sci); }
.badge--spc  { background: var(--c-spc); }
.badge--tech { background: var(--c-tech); }
.badge--biz  { background: var(--c-biz); }
.badge--mkt  { background: var(--c-mkt); }
[data-theme="cyber"] .badge { color: #000; }

/* ─── Topics map · stone-pebbles ───────────────────────────────────── */
.topics-map { max-width: var(--maxw); margin: 0 auto; padding: 32px var(--pad) 80px; }
.topics-map__head { margin-bottom: 40px; max-width: 700px; }
.topics-map__h {
  font-family: var(--serif); font-size: 36px; margin: 0 0 12px;
  font-weight: 500; letter-spacing: -0.02em;
  font-variation-settings: "SOFT" 30, "opsz" 144;
}
.topics-map__sub { color: var(--fg-2); font-size: 16px; margin: 0; }

.cluster-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}
.cluster {
  padding: 32px 28px; display: block; transition: all .35s cubic-bezier(.2,.8,.2,1);
  position: relative; overflow: hidden;
  border-radius: var(--r-lg);
  background:
    linear-gradient(160deg, rgba(255,255,255,0.5) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.65),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    0 1px 2px rgba(40,30,20,0.06),
    0 10px 30px -8px rgba(40,30,20,0.18);
  animation: stone-breathe 7s ease-in-out infinite;
}
[data-theme="dark"] .cluster {
  background:
    linear-gradient(160deg, rgba(255,255,255,0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.07),
    inset 0 -1px 0 rgba(0,0,0,0.5),
    0 1px 2px rgba(0,0,0,0.5),
    0 12px 36px -8px rgba(0,0,0,0.65);
}
@keyframes stone-breathe {
  0%, 100% { transform: translateY(0); box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.65),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    0 1px 2px rgba(40,30,20,0.06),
    0 10px 30px -8px rgba(40,30,20,0.18); }
  50% { transform: translateY(-1px); box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.75),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    0 2px 4px rgba(40,30,20,0.07),
    0 14px 38px -8px rgba(40,30,20,0.22); }
}
.cluster::before {
  content: ""; position: absolute; top: -50px; right: -50px;
  width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--cl, var(--accent)) 0%, transparent 65%);
  opacity: 0.28;
  transition: opacity .35s, transform .35s;
  filter: blur(8px);
}
.cluster::after {
  content: ""; position: absolute; top: 8px; left: 16px; right: 16px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.9), transparent);
  opacity: 0.6;
  border-radius: 50%;
}
[data-theme="dark"] .cluster::after { background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent); }
.cluster--ai   { --cl: var(--c-ai); }
.cluster--sci  { --cl: var(--c-sci); }
.cluster--spc  { --cl: var(--c-spc); }
.cluster--biz  { --cl: var(--c-biz); }
.cluster--mkt  { --cl: var(--c-mkt); }
.cluster--tech { --cl: var(--c-tech); }
.cluster:hover {
  transform: translateY(-6px) scale(1.01);
  animation-play-state: paused;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.85),
    inset 0 -1px 0 rgba(0,0,0,0.08),
    0 3px 6px rgba(40,30,20,0.10),
    0 24px 50px -10px rgba(40,30,20,0.30);
}
.cluster:hover::before { opacity: 0.5; transform: scale(1.3); }
.cluster__top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 22px; position: relative; }
.cluster__count {
  font-family: var(--mono); font-size: 30px; font-weight: 700; color: var(--cl); line-height: 1;
}
.cluster__icon {
  font-size: 28px; opacity: 0.9;
  width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg); border-radius: 50%; border: 1px solid var(--line);
}
.cluster h3 {
  font-family: var(--serif); font-size: 22px; margin: 0 0 10px;
  font-weight: 500; letter-spacing: -0.015em;
  font-variation-settings: "SOFT" 30, "opsz" 144;
  position: relative;
}
.cluster p { color: var(--fg-2); font-size: 14px; line-height: 1.6; margin: 0 0 18px; position: relative; }
.cluster__more {
  font-family: var(--mono); font-size: 11px; color: var(--cl);
  letter-spacing: 0.08em; font-weight: 700;
  position: relative;
}

/* ─── Article cards — rounded pebbles ──────────────────────────────── */
.grid-section { max-width: var(--maxw); margin: 0 auto; padding: 32px var(--pad) 64px; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 32px; }
.section-title {
  font-family: var(--serif); font-size: 32px; margin: 0; font-weight: 500;
  letter-spacing: -0.02em;
  font-variation-settings: "SOFT" 30, "opsz" 144;
}
.section-link {
  font-family: var(--mono); color: var(--fg-3); font-size: 12px; letter-spacing: 0.06em;
  padding: 8px 14px; background: var(--bg-1); border-radius: var(--r-pill);
  border: 1px solid var(--line);
}
.section-link:hover { color: var(--accent); }

.article-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 22px;
}
.card {
  display: block; transition: all .35s cubic-bezier(.2,.8,.2,1);
  border-radius: var(--r-lg); overflow: hidden;
  background:
    linear-gradient(160deg, rgba(255,255,255,0.45) 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.6),
    inset 0 -1px 0 rgba(0,0,0,0.06),
    0 1px 2px rgba(40,30,20,0.05),
    0 10px 28px -10px rgba(40,30,20,0.18);
  position: relative;
}
[data-theme="dark"] .card {
  background:
    linear-gradient(160deg, rgba(255,255,255,0.04) 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.06),
    inset 0 -1px 0 rgba(0,0,0,0.5),
    0 1px 2px rgba(0,0,0,0.4),
    0 12px 36px -10px rgba(0,0,0,0.6);
}
.card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.85),
    inset 0 -1px 0 rgba(0,0,0,0.08),
    0 4px 8px rgba(40,30,20,0.10),
    0 24px 48px -10px rgba(40,30,20,0.30);
}
.card__cover {
  height: 150px; display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 64px; font-weight: 700;
  color: rgba(255,255,255,0.95);
  position: relative; overflow: hidden;
}
.card__cover::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 15%, rgba(255,255,255,0.55), transparent 50%),
    radial-gradient(ellipse 50% 30% at 70% 90%, rgba(0,0,0,0.25), transparent 50%);
  pointer-events: none;
}
.card__cover::after {
  content: ""; position: absolute; top: 6px; left: 18%; right: 18%; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.9), transparent);
  border-radius: 50%;
  filter: blur(0.5px);
  pointer-events: none;
}
.card__cover--ai   { background: radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--c-ai) 70%, #fff), color-mix(in srgb, var(--c-ai) 80%, #000)); }
.card__cover--sci  { background: radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--c-sci) 70%, #fff), color-mix(in srgb, var(--c-sci) 80%, #000)); }
.card__cover--spc  { background: radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--c-spc) 70%, #fff), color-mix(in srgb, var(--c-spc) 80%, #000)); }
.card__cover--biz  { background: radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--c-biz) 70%, #fff), color-mix(in srgb, var(--c-biz) 80%, #000)); }
.card__cover--mkt  { background: radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--c-mkt) 70%, #fff), color-mix(in srgb, var(--c-mkt) 80%, #000)); }
.card__cover--tech { background: radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--c-tech) 70%, #fff), color-mix(in srgb, var(--c-tech) 80%, #000)); }
.card > .card__meta { padding: 20px 24px 0; display: flex; justify-content: space-between; align-items: center; }
.card__time { font-family: var(--mono); font-size: 11px; color: var(--fg-3); }
.card h3 {
  font-family: var(--serif); font-size: 19px; margin: 12px 24px 10px; line-height: 1.3;
  font-weight: 500; letter-spacing: -0.01em;
  font-variation-settings: "SOFT" 30, "opsz" 144;
}
.card p { color: var(--fg-2); font-size: 13.5px; margin: 0 24px 16px; line-height: 1.55; }
.card__date {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  color: var(--fg-3); text-transform: uppercase; padding: 0 24px 22px;
}

/* ─── Footer ────────────────────────────────────────────────────────── */
.ft {
  background: var(--bg-1); border-top: 1px solid var(--line);
  margin-top: 32px; border-top-left-radius: var(--r-lg); border-top-right-radius: var(--r-lg);
  max-width: var(--maxw); margin-left: auto; margin-right: auto;
}
.ft__inner {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 56px;
  padding: 56px var(--pad);
}
.ft__author-id { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.ft__author-name {
  font-family: var(--serif); font-size: 24px; letter-spacing: -0.02em;
  font-weight: 600; line-height: 1;
}
.ft__author-role {
  font-family: var(--mono); font-size: 10px; color: var(--fg-3);
  letter-spacing: 0.15em; margin-top: 4px; text-transform: uppercase;
}
.ft__author-bio { color: var(--fg-2); font-size: 14px; line-height: 1.7; max-width: 540px; margin: 0 0 18px; }
.ft__author-bio a { color: var(--accent); }
.ft__copy {
  font-family: var(--mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.05em;
  margin: 0;
}
.ft__contact-h {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; color: var(--fg-3);
  margin-bottom: 14px;
}
.ft__contact-line {
  display: block; padding: 10px 18px; color: var(--fg-2); font-size: 14px;
  font-family: var(--mono); margin-bottom: 6px;
  background: var(--bg); border-radius: var(--r-pill); border: 1px solid var(--line);
}
.ft__contact-line:hover { color: var(--accent); border-color: var(--accent); }

/* ─── Mobile ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --pad: 20px; --r-lg: 24px; }
  .masthead__title { font-size: 22px; }
  .feature__link { grid-template-columns: 1fr; min-height: 0; border-radius: var(--r-md); }
  .feature__main { padding: 32px 24px; }
  .feature__side { padding: 24px; }
  .feature__h1 { font-size: 26px; }
  .topics-map__h { font-size: 26px; }
  .section-title { font-size: 22px; }
  .ft__inner { grid-template-columns: 1fr; gap: 32px; padding: 40px var(--pad); }
}