/* ─── Nav ────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  z-index: 100;
  background: transparent;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(12, 8, 23, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}
[data-theme="light"] .nav.scrolled {
  background: rgba(255, 255, 255, 0.88);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.nav-logo img { width: 24px; height: 24px; object-fit: contain; }
.nav-logo-dot { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.8125rem;
  color: var(--fg-muted);
}
.nav-links a { transition: color 0.15s; }
.nav-links a:hover { color: var(--fg); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-theme-btn {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--fg-muted);
  transition: color 0.15s, background 0.15s;
}
.nav-theme-btn:hover { color: var(--fg); background: var(--bg-card); }
.nav-mobile-btn {
  display: none;
  width: 32px; height: 32px;
  align-items: center; justify-content: center;
  color: var(--fg-muted);
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-btn { display: flex; }
}
.nav-mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem;
  flex-direction: column;
  gap: 1.25rem;
  z-index: 99;
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a { font-size: 1rem; color: var(--fg-muted); }
.nav-mobile-menu a:hover { color: var(--fg); }

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.2rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-body);
  transition: all 0.15s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: #fff;
  color: #0a0a0a;
}
.btn-primary:hover { background: #e8e8e8; }
[data-theme="light"] .btn-primary { background: #0a0a0a; color: #fff; }
[data-theme="light"] .btn-primary:hover { background: #1a1a1a; }
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-hover); }
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--fg-muted);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--border-hover); color: var(--fg); background: var(--bg-card); }
.btn-dark {
  background: var(--fg);
  color: var(--bg);
}
.btn-dark:hover { opacity: 0.9; }
.btn-lg { padding: 0.7rem 1.5rem; font-size: 0.9375rem; border-radius: 10px; }
.btn-sm { padding: 0.35rem 0.85rem; font-size: 0.8125rem; border-radius: 6px; }

/* ─── Badge / Pill ───────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  background: var(--bg-card);
}
.badge-accent {
  border-color: rgba(232,81,10,0.3);
  color: var(--accent);
  background: var(--accent-dim);
}
.badge-success {
  border-color: rgba(63,185,80,0.3);
  color: var(--success);
  background: rgba(63,185,80,0.08);
}
.badge-dot::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}
.card:hover { border-color: var(--border-hover); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.24); }
.card-accent-hover:hover {
  border-color: rgba(232,81,10,0.25);
  background: rgba(232,81,10,0.03);
}
.card-link { cursor: pointer; }
.card-link:hover { transform: translateY(-2px); transition: transform 0.2s var(--ease); }
.card-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid rgba(232,81,10,0.2);
  color: var(--accent);
  margin-bottom: 1.25rem;
  flex-shrink: 0;
}
.card-icon svg { width: 18px; height: 18px; }

/* ─── Code blocks ────────────────────────────────────────────────────────── */
.code-block {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--code-border);
  background: rgba(255,255,255,0.02);
}
.code-dots { display: flex; gap: 6px; }
.code-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.code-dots span:nth-child(1) { background: #ff5f57; }
.code-dots span:nth-child(2) { background: #ffbd2e; }
.code-dots span:nth-child(3) { background: #28ca42; }
.code-filename {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #666;
  letter-spacing: 0.02em;
}
.code-body {
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
}
.code-body pre {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: #e8f4f8;
  tab-size: 2;
}
.tok-comment { color: #6a737d; }
.tok-key     { color: #79b8ff; }
.tok-str     { color: #9ecbff; }
.tok-val     { color: #f97583; }
.tok-section { color: #b392f0; font-weight: 500; }
.tok-kw      { color: #f97583; }
.tok-fn      { color: #b392f0; }
.tok-type    { color: #79b8ff; }
.tok-op      { color: #e8f4f8; }
.tok-num     { color: #f97583; }
.tok-bool    { color: #f97583; }

/* ─── Terminal ───────────────────────────────────────────────────────────── */
.terminal {
  background: #0a0a0a;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: #111;
}
.terminal-header .code-dots { display: flex; gap: 6px; }
.terminal-title { font-size: 0.7rem; color: #555; margin-left: 0.5rem; }
.terminal-body { padding: 1.25rem 1.5rem; line-height: 1.75; }
.terminal-line { display: flex; gap: 0.75rem; }
.terminal-prompt { color: var(--accent); user-select: none; }
.terminal-cmd { color: #e8f4f8; }
.terminal-out { color: #555; }
.terminal-out.success { color: var(--success); }
.terminal-out.accent { color: var(--accent); }

/* ─── Section label ──────────────────────────────────────────────────────── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.section-label::before {
  content: '';
  width: 16px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}

/* ─── Divider ────────────────────────────────────────────────────────────── */
.divider { width: 100%; height: 1px; background: var(--border); }

/* ─── Steps ──────────────────────────────────────────────────────────────── */
.steps { display: flex; gap: 0; position: relative; }
.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  padding: 0 1rem;
}
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 1.25rem; right: 0;
  width: 50%; height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}
.step:not(:first-child)::before {
  content: '';
  position: absolute;
  top: 1.25rem; left: 0;
  width: 50%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border));
}
.step-num {
  width: 2.5rem; height: 2.5rem;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-bottom: 1rem;
  position: relative; z-index: 1;
}
.step-num.active {
  background: var(--accent-dim);
  border-color: rgba(232,81,10,0.3);
  color: var(--accent);
}
@media (max-width: 640px) {
  .steps { flex-direction: column; gap: 1.5rem; }
  .step::before, .step::after { display: none; }
}

/* ─── Checklist ──────────────────────────────────────────────────────────── */
.checklist { display: flex; flex-direction: column; gap: 0.6rem; }
.checklist-item {
  display: flex; align-items: flex-start; gap: 0.6rem;
  font-size: 0.875rem; color: var(--fg-muted);
}
.checklist-item svg { width: 14px; height: 14px; color: var(--success); flex-shrink: 0; margin-top: 3px; }

/* ─── Proof bar ──────────────────────────────────────────────────────────── */
.proof-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 1rem 0;
  overflow: hidden;
}
.proof-items {
  display: flex; align-items: center; justify-content: center;
  gap: 2.5rem; flex-wrap: wrap; padding: 0 2rem;
}
.proof-item {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; color: var(--fg-muted); white-space: nowrap;
}
.proof-item svg { width: 14px; height: 14px; color: var(--success); }

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 3.5rem 0 2rem;
  background: var(--bg-elevated);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}
@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1.6fr repeat(2, 1fr); row-gap: 2.5rem; } }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 420px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p {
  font-size: 0.8125rem; color: var(--fg-muted);
  margin-top: 0.75rem; max-width: 24ch; line-height: 1.6;
}
.footer-brand-logo {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-display); font-weight: 700;
  font-size: 1rem; letter-spacing: -0.03em;
}
.footer-brand-logo img { width: 22px; height: 22px; }
.footer-col-title {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--fg-muted); margin-bottom: 1rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { font-size: 0.875rem; color: var(--fg-muted); transition: color 0.15s; }
.footer-links a:hover { color: var(--fg); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8rem; color: var(--fg-subtle);
  flex-wrap: wrap; gap: 0.75rem;
}
.footer-bottom a { color: var(--fg-subtle); transition: color 0.15s; }
.footer-bottom a:hover { color: var(--fg-muted); }
.footer-social { display: flex; gap: 1rem; margin-top: 1.25rem; }
.footer-social a { color: var(--fg-subtle); transition: color 0.15s; display: flex; }
.footer-social a:hover { color: var(--fg); }

/* ─── CTA band ───────────────────────────────────────────────────────────── */
.cta-band {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band-glow {
  position: absolute;
  width: 600px; height: 400px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* ─── Docs sidebar ───────────────────────────────────────────────────────── */
.docs-layout {
  display: grid; grid-template-columns: 240px 1fr; gap: 0;
  min-height: calc(100vh - var(--nav-h)); margin-top: var(--nav-h);
}
.docs-sidebar {
  position: sticky; top: var(--nav-h);
  height: calc(100vh - var(--nav-h)); overflow-y: auto;
  border-right: 1px solid var(--border); padding: 2rem 1.25rem;
}
.docs-sidebar-section { margin-bottom: 1.75rem; }
.docs-sidebar-title {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--fg-subtle); margin-bottom: 0.5rem;
}
.docs-sidebar-links { display: flex; flex-direction: column; gap: 0.1rem; }
.docs-sidebar-links a {
  font-size: 0.8125rem; color: var(--fg-muted);
  padding: 0.35rem 0.6rem; border-radius: 5px; transition: all 0.15s;
}
.docs-sidebar-links a:hover { color: var(--fg); background: var(--bg-card); }
.docs-sidebar-links a.active { color: var(--fg); background: var(--bg-card); }
.docs-content { padding: 3rem 3.5rem; max-width: 760px; }
@media (max-width: 900px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { display: none; }
  .docs-content { padding: 2rem 1.5rem; }
}

/* ─── Prose ──────────────────────────────────────────────────────────────── */
.prose h2 {
  font-family: var(--font-display); font-size: 1.375rem;
  font-weight: 600; letter-spacing: -0.02em;
  margin-top: 2.5rem; margin-bottom: 0.75rem;
}
.prose h3 {
  font-family: var(--font-display); font-size: 1.0625rem;
  font-weight: 600; margin-top: 2rem; margin-bottom: 0.5rem;
}
.prose p { color: var(--fg-muted); margin-bottom: 1.25rem; font-size: 0.9375rem; line-height: 1.75; }
.prose ul, .prose ol { color: var(--fg-muted); font-size: 0.9375rem; padding-left: 1.5rem; margin-bottom: 1.25rem; }
.prose li { margin-bottom: 0.4rem; }
.prose code {
  font-family: var(--font-mono); font-size: 0.8em;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.1em 0.4em; color: var(--accent);
}
.prose a { color: var(--accent); text-decoration: underline; text-decoration-color: rgba(232,81,10,0.3); }
.prose a:hover { text-decoration-color: var(--accent); }
.prose .code-block { margin: 1.5rem 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.875rem; margin-bottom: 1.5rem; }
.prose th {
  text-align: left; padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border); font-weight: 600;
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--fg-muted);
}
.prose td { padding: 0.6rem 1rem; border-bottom: 1px solid var(--border); color: var(--fg-muted); }
.prose tr:last-child td { border-bottom: none; }

/* ─── Lineage cards ──────────────────────────────────────────────────────── */
.lineage-card {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 1.25rem; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s; cursor: pointer;
}
.lineage-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.lineage-icon {
  width: 40px; height: 40px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 0.875rem;
  background: var(--bg-elevated); border: 1px solid var(--border);
  flex-shrink: 0; color: var(--fg-muted);
}
.lineage-icon.accent {
  background: var(--accent-dim); border-color: rgba(232,81,10,0.2); color: var(--accent);
}

/* ─── Status card ────────────────────────────────────────────────────────── */
.status-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem;
}
.status-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--border);
}

/* ─── Animations ─────────────────────────────────────────────────────────── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.animate-fade-up { animation: fade-up 0.7s var(--ease) both; }
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.22s; }
.animate-delay-3 { animation-delay: 0.38s; }
.animate-delay-4 { animation-delay: 0.54s; }

/* ─── Subpage: Page Hero ─────────────────────────────────────────────────── */
.page-hero {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--border);
}
@media (max-width: 768px) {
  .page-hero { padding: 3rem 0 2.5rem; }
}
.page-hero-inner { max-width: 780px; }
.page-hero h1 { margin: 1rem 0 1.5rem; }
.page-hero-sub {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--fg-muted);
  max-width: 640px;
}
.page-hero-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* ─── Subpage: Two-column layout ─────────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; gap: 2.5rem; } }

/* ─── Subpage: Section typography ───────────────────────────────────────── */
.section-title-sm {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}
.section-lead {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

/* ─── Subpage: Problem / Benefit lists ───────────────────────────────────── */
.problem-list, .benefit-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.benefit-list { gap: 1rem; }
.problem-item, .benefit-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.problem-icon, .benefit-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  margin-top: 2px;
}
.problem-icon {
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.25);
  color: #ef4444;
}
.benefit-icon {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.25);
  color: var(--success);
}
.problem-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--fg-muted);
}
.benefit-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--fg);
  margin-bottom: 0.2rem;
}
.benefit-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ─── Subpage: Use-case grid ─────────────────────────────────────────────── */
.use-case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
@media (max-width: 640px) { .use-case-grid { grid-template-columns: 1fr; } }
.use-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}
.use-case-card:hover { border-color: var(--accent); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.24); }
.use-case-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}
.use-case-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: 0.4rem;
}
.use-case-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ─── Subpage: Stat row ──────────────────────────────────────────────────── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
@media (max-width: 640px) { .stat-row { grid-template-columns: 1fr; } }
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}
.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* ─── Use-case link card (homepage + section landing pages) ─────────────── */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-md);
}
@media (max-width: 700px) {
  .usecase-grid { grid-template-columns: 1fr; }
}
.usecase-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}
.usecase-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}
.usecase-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.5rem;
  letter-spacing: -0.015em;
}
.usecase-card p {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.usecase-card a {
  font-size: 0.82rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.usecase-card a:hover { text-decoration: underline; }