/* ============================================================
   TheAdminStack — Design System v4.0
   Clean light theme · Reference: personal portfolio card UI
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=Cormorant+Garamond:ital,wght@1,300;1,400;1,500&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================================
   Tokens — light palette
   ============================================================ */
:root {
  /* Backgrounds */
  --bg:        #f9fafb;
  --bg-2:      #f3f4f6;
  --bg-3:      #e5e7eb;

  /* Surfaces */
  --surface:   #ffffff;
  --surface-2: rgba(0,0,0,0.025);
  --surface-3: rgba(0,0,0,0.05);

  /* Borders */
  --border:    rgba(0,0,0,0.07);
  --border-2:  rgba(0,0,0,0.12);
  --border-3:  rgba(0,0,0,0.22);

  /* Accent — near-black, like the reference active nav */
  --accent:    #111827;
  --accent-2:  #374151;
  --accent-dim: rgba(0,0,0,0.06);

  /* Status */
  --green:  #16a34a;
  --red:    #dc2626;
  --orange: #d97706;

  /* Text */
  --text:   #111827;
  --text-2: #4b5563;
  --text-3: #9ca3af;
  --text-4: #d1d5db;

  /* Fonts */
  --font-display: 'Syne', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-serif:   'Cormorant Garamond', Georgia, serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 7rem;

  /* Layout */
  --container: 1240px;
  --nav-h: 72px;

  /* Radii */
  --r-xs: 3px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-pill: 100px;

  /* Transitions */
  --t-fast:   120ms ease;
  --t-mid:    220ms ease;
  --t-slow:   380ms ease;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg:  0 12px 32px rgba(0,0,0,0.08), 0 4px 8px rgba(0,0,0,0.04);
}

/* ============================================================
   Dark mode overrides
   ============================================================ */
html.dark {
  --bg:        #0f1117;
  --bg-2:      #161b27;
  --bg-3:      #1e2433;

  --surface:   #1a2030;
  --surface-2: rgba(255,255,255,0.03);
  --surface-3: rgba(255,255,255,0.06);

  --border:    rgba(255,255,255,0.07);
  --border-2:  rgba(255,255,255,0.12);
  --border-3:  rgba(255,255,255,0.22);

  --accent:    #e5e7eb;
  --accent-2:  #9ca3af;
  --accent-dim: rgba(255,255,255,0.06);

  --text:   #f1f5f9;
  --text-2: #94a3b8;
  --text-3: #4b5563;
  --text-4: #374151;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.35), 0 2px 4px rgba(0,0,0,0.2);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.4), 0 4px 8px rgba(0,0,0,0.2);
}

html.dark .nav {
  background: rgba(15,17,23,0.88);
}

html.dark .nav.scrolled {
  background: rgba(26,32,48,0.97);
}

html.dark .nav-mobile {
  background: rgba(26,32,48,0.99);
}

html.dark .nav-pill {
  background: rgba(255,255,255,0.04);
}

html.dark .nav-pill a.active {
  background: rgba(255,255,255,0.08);
  box-shadow: none;
}

html.dark .nav-pill a:hover {
  background: rgba(255,255,255,0.06);
}

html.dark .btn-primary {
  background: #e5e7eb;
  color: #111827;
}

html.dark .btn-outline {
  border-color: var(--border-2);
}

html.dark .form-group input,
html.dark .form-group select,
html.dark .form-group textarea {
  background: var(--bg-2);
}

html.dark .badge-green  { background: rgba(22,163,74,0.15);  color: #4ade80; border-color: rgba(22,163,74,0.25); }
html.dark .badge-blue   { background: rgba(37,99,235,0.15);  color: #93c5fd; border-color: rgba(37,99,235,0.25); }
html.dark .badge-indigo { background: rgba(79,70,229,0.15);  color: #a5b4fc; border-color: rgba(79,70,229,0.25); }
html.dark .badge-purple { background: rgba(124,58,237,0.15); color: #c4b5fd; border-color: rgba(124,58,237,0.25); }
html.dark .badge-orange { background: rgba(217,119,6,0.15);  color: #fbbf24; border-color: rgba(217,119,6,0.25); }
html.dark .badge-red    { background: rgba(220,38,38,0.15);  color: #f87171; border-color: rgba(220,38,38,0.25); }
html.dark .badge-cyan   { background: rgba(6,182,212,0.15);  color: #22d3ee; border-color: rgba(6,182,212,0.25); }

html.dark .alert-success { color: #4ade80; }
html.dark .alert-danger  { color: #f87171; }
html.dark .alert-warning { color: #fbbf24; }
html.dark .alert-info    { color: #a5b4fc; }

html.dark .code-block { background: #0d1117; }
html.dark .code-header { background: #161b27; }
html.dark code { color: #c9d1d9; }

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 { font-size: clamp(2.25rem, 4.5vw, 3.75rem); }
h2 { font-size: clamp(1.5rem, 2.5vw, 2.1rem); }
h3 { font-size: clamp(1rem, 1.5vw, 1.2rem); font-weight: 600; }
h4 { font-size: 0.95rem; font-weight: 600; }

p { color: var(--text-2); line-height: 1.7; }

a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--t-fast);
}
a:hover { color: var(--accent-2); }

code, pre { font-family: var(--font-mono); }

/* Editorial serif italic accent */
.serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  letter-spacing: 0.01em;
  color: var(--text-3);
}

.lead {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-2);
}

/* Monospace eyebrow */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--space-md);
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--text-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section    { padding: var(--space-4xl) 0; }
.section-sm { padding: var(--space-3xl) 0; }

.grid-2    { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.grid-3    { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.grid-4    { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-xl); }

/* ============================================================
   Navigation — light pill style
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 900;
  display: flex;
  align-items: center;
  background: rgba(249,250,251,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--t-mid), box-shadow var(--t-mid);
}

.nav.scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* Brand — left */
.nav-brand {
  position: absolute;
  left: var(--space-xl);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.2;
}

.nav-brand-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.nav-brand-role {
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

/* Pill nav — centered */
.nav-pill {
  display: flex;
  align-items: center;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 4px;
  gap: 2px;
  list-style: none;
}

.nav-pill a {
  display: block;
  padding: 0.38rem 0.95rem;
  border-radius: var(--r-pill);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-3);
  text-decoration: none;
  transition: all var(--t-fast);
  white-space: nowrap;
}

.nav-pill a:hover {
  color: var(--text-2);
  background: var(--surface);
}

.nav-pill a.active {
  color: var(--text);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

.nav-pill .vra-link {
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-2);
  border-radius: var(--r-pill);
  padding: 0.38rem 0.95rem;
  font-size: 0.8rem;
  font-weight: 600;
  margin-left: 4px;
}

.nav-pill .vra-link:hover {
  background: var(--bg-3);
  color: var(--accent);
}

/* Right side */
.nav-right {
  position: absolute;
  right: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-right a {
  font-size: 0.85rem;
  color: var(--text-3);
  font-weight: 500;
  transition: color var(--t-fast);
}

.nav-right a:hover { color: var(--text-2); }

.nav-right .btn-nav {
  padding: 0.4rem 1.1rem;
  border-radius: var(--r-sm);
  background: var(--accent);
  color: white;
  font-size: 0.82rem;
  font-weight: 600;
  transition: opacity var(--t-fast);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.nav-right .btn-nav:hover {
  opacity: 0.85;
  color: white;
}

/* Theme toggle button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  background: none;
  border: 1px solid var(--border);
  color: var(--text-3);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--text-2);
  background: var(--bg-2);
  border-color: var(--border-2);
}

.theme-toggle-mobile {
  width: 28px;
  height: 28px;
}

/* Mobile */
.nav-toggle {
  display: none;
  position: absolute;
  right: var(--space-xl);
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-3);
  border-radius: 1px;
  transition: all var(--t-fast);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: var(--space-lg) var(--space-xl) var(--space-xl);
  z-index: 899;
  flex-direction: column;
  gap: var(--space-xs);
  box-shadow: var(--shadow-md);
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: var(--r-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-2);
  transition: all var(--t-fast);
}

.nav-mobile a:hover { color: var(--text); background: var(--bg-2); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all var(--t-fast);
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover { opacity: 0.85; color: white; }

.btn-outline {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border-2);
}
.btn-outline:hover { color: var(--text); border-color: var(--border-3); background: var(--bg-2); }

.btn-ghost {
  background: var(--surface);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-2); color: var(--text); }

.btn-sm  { padding: 0.375rem 0.875rem; font-size: 0.8rem; }
.btn-lg  { padding: 0.75rem 1.75rem; font-size: 0.95rem; }
.btn-xl  { padding: 0.9rem 2rem; font-size: 1rem; }

.btn-danger {
  background: rgba(220,38,38,0.08);
  color: #dc2626;
  border: 1px solid rgba(220,38,38,0.18);
}
.btn-danger:hover { background: rgba(220,38,38,0.14); }

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color var(--t-mid), box-shadow var(--t-mid);
}

.card:hover {
  border-color: var(--border-2);
  box-shadow: var(--shadow-sm);
}

.card-body { padding: var(--space-xl); }
.card-sm   { padding: var(--space-lg); }
.card-lg   { padding: 2.5rem; }

/* ============================================================
   Hero — clean personal portfolio layout
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  background: var(--bg);
}

/* The headline */
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: var(--space-xl);
}

.hero-headline .serif {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--text-3);
}

.hero-bio {
  max-width: 420px;
}

.hero-bio p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-2);
  margin-bottom: 0.375rem;
}

.hero-bio p + p {
  color: var(--text-3);
  font-size: 0.875rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 0.25rem;
  letter-spacing: 0.01em;
}

/* Cert strip */
.cert-strip { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.cert-tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: var(--r-pill);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  color: var(--text-2);
  transition: all var(--t-fast);
}

.cert-tag:hover {
  background: var(--bg-3);
  border-color: var(--border-3);
  color: var(--text);
}

/* ============================================================
   Page header (inner pages)
   ============================================================ */
.page-hero {
  padding: calc(var(--nav-h) + 4rem) 0 3.5rem;
}

.page-hero::after {
  content: '';
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-2), transparent);
  margin-top: 3.5rem;
}

/* ============================================================
   Tags, badges
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.55rem;
  border-radius: var(--r-xs);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid;
}

.badge-blue   { background: rgba(37,99,235,0.07);  color: #1d4ed8; border-color: rgba(37,99,235,0.18); }
.badge-indigo { background: rgba(79,70,229,0.07);  color: #4338ca; border-color: rgba(79,70,229,0.18); }
.badge-green  { background: rgba(22,163,74,0.07);  color: #15803d; border-color: rgba(22,163,74,0.18); }
.badge-purple { background: rgba(124,58,237,0.07); color: #6d28d9; border-color: rgba(124,58,237,0.18); }
.badge-orange { background: rgba(217,119,6,0.08);  color: #b45309; border-color: rgba(217,119,6,0.18); }
.badge-red    { background: rgba(220,38,38,0.07);  color: #b91c1c; border-color: rgba(220,38,38,0.18); }
.badge-cyan   { background: rgba(6,182,212,0.07);  color: #0e7490; border-color: rgba(6,182,212,0.18); }

.tag {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: var(--r-pill);
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--bg-2);
  color: var(--text-3);
  border: 1px solid var(--border);
  transition: all var(--t-fast);
}

.tag:hover { color: var(--text-2); border-color: var(--border-2); background: var(--bg-3); }

/* ============================================================
   Post cards
   ============================================================ */
.post-card { display: flex; flex-direction: column; }

.post-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.post-card h3 {
  font-size: 1.05rem;
  line-height: 1.35;
  margin-bottom: 0.5rem;
  transition: color var(--t-fast);
}

.post-card:hover h3 { color: var(--accent-2); }

.post-card p { font-size: 0.875rem; flex: 1; margin-bottom: var(--space-md); }

.post-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-3);
}

.post-card-footer span:last-child {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
}

/* ============================================================
   Filter tabs
   ============================================================ */
.filter-tabs {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.filter-tab {
  padding: 0.35rem 0.9rem;
  border-radius: var(--r-pill);
  font-size: 0.82rem;
  font-weight: 500;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-3);
  text-decoration: none;
  transition: all var(--t-fast);
}

.filter-tab:hover { color: var(--text-2); border-color: var(--border-2); background: var(--bg-2); }

.filter-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* ============================================================
   Forms
   ============================================================ */
.form-group { margin-bottom: var(--space-lg); }

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: 0.01em;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(17,24,39,0.06);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-4); }

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239ca3af' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 10px;
  padding-right: 2.25rem;
  cursor: pointer;
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); }

/* ============================================================
   Alerts
   ============================================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
  border-left: 3px solid;
}

.alert-success { background: rgba(22,163,74,0.06);  border-color: var(--green);  color: #15803d; }
.alert-danger  { background: rgba(220,38,38,0.06);  border-color: var(--red);    color: #b91c1c; }
.alert-warning { background: rgba(217,119,6,0.06);  border-color: var(--orange); color: #b45309; }
.alert-info    { background: rgba(79,70,229,0.06);  border-color: #4338ca;       color: #4338ca; }

/* ============================================================
   Dividers
   ============================================================ */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-2), transparent);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  display: block;
}

.footer-brand p { font-size: 0.875rem; max-width: 260px; }

.footer-col h4 {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-3);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.footer-links { display: flex; flex-direction: column; gap: 0.625rem; list-style: none; }

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-3);
  transition: color var(--t-fast);
}

.footer-links a:hover { color: var(--text-2); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-3);
}

.footer-bottom a { color: var(--text-3); }
.footer-bottom a:hover { color: var(--text-2); }

/* ============================================================
   Code
   ============================================================ */
.code-block {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow-x: auto;
  margin: var(--space-lg) 0;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-3);
}

.code-lang { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-3); }

pre { padding: 1.5rem; overflow-x: auto; margin: 0; }
code { font-family: var(--font-mono); font-size: 0.875rem; line-height: 1.7; color: var(--text-2); }

/* ============================================================
   Post content
   ============================================================ */
.post-content h2 { font-size: 1.7rem; margin: 2.5rem 0 1rem; }
.post-content h3 { font-size: 1.25rem; margin: 2rem 0 0.75rem; }
.post-content p  { margin-bottom: 1.25rem; }
.post-content ul,
.post-content ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
.post-content li { margin-bottom: 0.5rem; color: var(--text-2); }
.post-content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  border-left: 2px solid var(--border-3);
  background: var(--bg-2);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  color: var(--text-2);
  font-style: italic;
}

.post-content a { color: var(--accent); text-decoration: underline; text-decoration-color: var(--border-3); }
.post-content a:hover { text-decoration-color: var(--accent); }

/* ============================================================
   Pagination
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: var(--space-2xl) 0;
}

.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  font-size: 0.82rem;
  font-weight: 500;
  transition: all var(--t-fast);
}

.pagination a { background: var(--surface); border: 1px solid var(--border); color: var(--text-2); }
.pagination a:hover { background: var(--bg-2); color: var(--text); }
.pagination .active { background: var(--accent); color: white; border-color: var(--accent); }

/* ============================================================
   Empty state
   ============================================================ */
.empty-state { text-align: center; padding: 4rem 2rem; }
.empty-state h3 { color: var(--text-3); font-size: 1.1rem; margin-bottom: 0.5rem; }
.empty-state p  { font-size: 0.875rem; color: var(--text-3); }

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-3);
  margin-bottom: var(--space-lg);
}

.breadcrumb a       { color: var(--text-3); }
.breadcrumb a:hover { color: var(--text-2); }
.breadcrumb .sep    { color: var(--text-4); }
.breadcrumb .current{ color: var(--text-2); }

/* ============================================================
   Contact row
   ============================================================ */
.contact-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color var(--t-mid), box-shadow var(--t-mid);
}

.contact-row:hover { border-color: var(--border-2); box-shadow: var(--shadow-sm); }

/* ============================================================
   Testimonials
   ============================================================ */
.testimonial-card { padding: var(--space-xl); }

.testimonial-card p {
  font-size: 0.925rem;
  line-height: 1.75;
  margin-bottom: var(--space-lg);
  font-style: italic;
}

.testimonial-author { display: flex; align-items: center; gap: var(--space-md); }

.testimonial-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  color: white;
  flex-shrink: 0;
  font-family: var(--font-display);
}

.testimonial-stars { font-size: 0.8rem; color: var(--orange); letter-spacing: 1px; margin-bottom: var(--space-md); }

/* ============================================================
   Utility helpers
   ============================================================ */
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-muted   { color: var(--text-3) !important; }
.text-accent  { color: var(--accent) !important; }
.text-mono    { font-family: var(--font-mono); }

.mb-0   { margin-bottom: 0; }
.mb-sm  { margin-bottom: var(--space-sm); }
.mb-md  { margin-bottom: var(--space-md); }
.mb-lg  { margin-bottom: var(--space-lg); }
.mb-xl  { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mt-auto { margin-top: auto; }

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .container { padding: 0 1.25rem; }
  .section { padding: var(--space-3xl) 0; }
  .section-sm { padding: var(--space-2xl) 0; }

  h1 { font-size: clamp(2rem, 8vw, 3rem); }
  h2 { font-size: clamp(1.5rem, 5vw, 2rem); }

  /* Nav */
  .nav-pill  { display: none; }
  .nav-right { display: none; }
  .nav-toggle { display: flex; }

  /* Hero */
  .hero-headline { font-size: clamp(1.875rem, 7vw, 3rem); }
  .hero-headline .serif { font-size: clamp(1.875rem, 7vw, 3rem); }
  .hero-actions { flex-wrap: wrap; }

  /* Grids */
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }

  /* Form */
  .form-grid { grid-template-columns: 1fr; }

  /* Cards */
  .card-lg { padding: var(--space-xl); }
}

@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}