/* ============================================================
   KIROLOSS FRANCIS PORTAL — SITE STYLESHEET
   Design: Dark editorial, high-contrast, WCAG AA compliant
   Fonts: Syne (headings), Lato (body), JetBrains Mono (code)
   ============================================================ */

/* ---- CSS Custom Properties ---- */
:root {
    --bg-base: #0d1117;
    --bg-surface: #161b22;
    --bg-elevated: #21262d;
    --bg-card: #1a1f27;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #8b949e;
    --text-inverse: #0d1117;
    --accent: #00d4aa; /* teal-green — distinct, modern */
    --accent-dark: #009e7f;
    --accent-light: #33ddb8;
    --accent-glow: rgba(0, 212, 170, 0.15);
    --red: #f85149;
    --yellow: #e3b341;
    --blue: #58a6ff;
    --purple: #bc8cff;
    --border: #30363d;
    --border-light: #21262d;
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.4);
    --shadow: 0 4px 16px rgba(0,0,0,.5);
    --shadow-lg: 0 12px 40px rgba(0,0,0,.7);
    --font-display: 'Syne', sans-serif;
    --font-body: 'Lato', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --max-width: 1200px;
    --header-h: 68px;
    --transition: 0.2s ease;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition), opacity var(--transition);
}
a:hover { color: var(--accent-light); }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--text-primary);
  font-weight: 700;
}

ul[role="list"] { list-style: none; }

/* ---- Skip Link ---- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--accent);
  color: var(--text-inverse);
  padding: 10px 20px;
  border-radius: 0 0 var(--radius) var(--radius);
  font-weight: 700;
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ---- Container ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- HEADER ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-kf {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: var(--text-inverse);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.logo-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.logo:hover .logo-name { color: var(--accent); }

.primary-nav ul {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  letter-spacing: 0.03em;
}

.nav-link:hover { color: var(--text-primary); background: var(--bg-elevated); }
.nav-link.active { color: var(--accent); background: var(--accent-glow); }
.nav-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.hamburger { position: relative; }
.hamburger::before, .hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}
.hamburger::before { top: -6px; }
.hamburger::after  { top: 6px; }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .primary-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
  }

  .primary-nav.open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: flex-start; }
  .nav-link { width: 100%; padding: 12px 16px; font-size: 1rem; }
}

/* ---- HERO ---- */
.hero {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(0, 212, 170, 0.06) 0%, transparent 70%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    repeating-linear-gradient(90deg, rgba(255,255,255,.015) 0, rgba(255,255,255,.015) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(0deg,  rgba(255,255,255,.015) 0, rgba(255,255,255,.015) 1px, transparent 1px, transparent 80px);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 24px;
}

.hero-title .accent-word {
  color: var(--accent);
  position: relative;
}

.hero-bio {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Avatar */
.hero-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.hero-avatar {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 0 40px var(--accent-glow), var(--shadow-lg);
  position: relative;
  z-index: 1;
}

.hero-avatar-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1px dashed rgba(0, 212, 170, 0.3);
  animation: spin 20s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Fallback SVG avatar when no photo provided */
.avatar-placeholder {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
  border: 3px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  color: var(--accent);
  box-shadow: 0 0 40px var(--accent-glow), var(--shadow-lg);
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-avatar-wrap { justify-self: center; order: -1; }
  .hero-eyebrow { justify-content: center; }
  .hero-ctas { justify-content: center; }
  .hero-bio { margin-left: auto; margin-right: auto; }
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-light);
  color: var(--text-inverse);
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(0, 212, 170, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: none;
  padding: 8px 12px;
}
.btn-ghost:hover { background: var(--accent-glow); color: var(--accent-light); }

.btn-sm { padding: 8px 16px; font-size: 0.8rem; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #c0392b; color: #fff; }

/* ---- STAT BADGES ---- */
.stats-row {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  margin-top: 48px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}

/* ---- SECTION HEADINGS ---- */
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }

.section-header {
  margin-bottom: 48px;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
}

.section-subtitle {
  color: var(--text-secondary);
  margin-top: 12px;
  max-width: 560px;
  font-size: 1.05rem;
}

/* ---- CARDS ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: rgba(0, 212, 170, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

/* Blog post card */
.post-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.post-card:hover { 
  border-color: rgba(0, 212, 170, 0.4);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: inherit;
}

.post-card:hover::before { transform: scaleX(1); }

.post-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.post-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 4px 10px;
  border-radius: 100px;
  width: fit-content;
  text-decoration: none;
}

.post-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin: 0;
}

.post-summary {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  flex-wrap: wrap;
}

.post-meta i { color: var(--text-muted); }

.tag-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
}

/* ---- BLOG INDEX PAGE ---- */
.blog-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
}

@media (max-width: 960px) {
  .blog-layout { grid-template-columns: 1fr; }
}

.search-bar {
  position: relative;
  margin-bottom: 32px;
}

.search-bar label {
  position: absolute;
  width: 1px; height: 1px;
  clip: rect(0,0,0,0);
  overflow: hidden;
}

.search-input {
  width: 100%;
  padding: 14px 20px 14px 52px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-input::placeholder { color: var(--text-muted); }

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
  pointer-events: none;
}

.search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
}

/* Sidebar */
.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.category-list { display: flex; flex-direction: column; gap: 8px; }

.category-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.category-item:hover, .category-item.active {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: rgba(0,212,170,.2);
  text-decoration: none;
}

.category-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.category-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-elevated);
  padding: 2px 8px;
  border-radius: 100px;
  color: var(--text-muted);
}

.category-item.active .category-count {
  background: rgba(0,212,170,.2);
  color: var(--accent);
}

/* ---- BLOG POST / ARTICLE ---- */
.article-hero {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 780px;
}

.article-content h2 {
  font-size: 1.5rem;
  margin: 36px 0 16px;
  color: var(--text-primary);
  padding-left: 16px;
  border-left: 3px solid var(--accent);
}

.article-content h3 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
  color: var(--text-primary);
}

.article-content p { margin-bottom: 20px; }

.article-content ul, .article-content ol {
  margin: 16px 0 20px 24px;
}

.article-content li { margin-bottom: 8px; }

.article-content a { color: var(--accent); }

.article-content strong { color: var(--text-primary); font-weight: 700; }

.article-content pre {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: auto;
  position: relative;
  border: 1px solid var(--border);
}

.article-content pre code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
}

.article-content :not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-elevated);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 48px;
  align-items: start;
}

@media (max-width: 960px) { .article-layout { grid-template-columns: 1fr; } }

/* ---- SKILLS SECTION ---- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color var(--transition);
}

.skill-card:hover { border-color: rgba(0, 212, 170, 0.4); }

.skill-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.skill-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ---- APP CARDS ---- */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.app-card:hover {
  border-color: rgba(0, 212, 170, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: inherit;
}

.app-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.app-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.5rem;
}

.app-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.app-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.app-store-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    margin-top: auto;
    padding-top: 8px;
}

/* ---- BOOK SECTION ---- */
.book-showcase {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  overflow: hidden;
  position: relative;
}

.book-showcase::before {
  content: '';
  position: absolute;
  right: -40px; top: -40px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.book-cover-3d {
  width: 140px;
  height: 190px;
  background: linear-gradient(135deg, #1a472a, #2d6a4f);
  border-radius: 4px 12px 12px 4px;
  box-shadow: 
    -4px 0 0 rgba(0,0,0,.3),
    4px 4px 20px rgba(0,0,0,.6),
    -8px 0 24px rgba(0,0,0,.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 12px;
  text-align: center;
  position: relative;
  flex-shrink: 0;
}

.book-cover-3d::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 8px;
  background: linear-gradient(to right, rgba(0,0,0,.3), transparent);
  border-radius: 4px 0 0 4px;
}

.book-cover-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  text-align: center;
}

.book-cover-author {
  font-size: 0.65rem;
  color: rgba(255,255,255,.7);
  margin-top: 8px;
  font-family: var(--font-mono);
}

@media (max-width: 640px) {
  .book-showcase { grid-template-columns: 1fr; text-align: center; }
  .book-cover-3d { margin: 0 auto; }
}

/* Footer book card mini */
.book-card-mini {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-secondary);
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.book-card-mini:hover { border-color: var(--accent); color: var(--text-primary); text-decoration: none; }

.book-spine {
  width: 36px;
  height: 50px;
  background: linear-gradient(135deg, #1a472a, #2d6a4f);
  border-radius: 2px 4px 4px 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.book-card-mini strong { display: block; font-size: 0.85rem; color: var(--text-primary); }
.book-card-mini span  { display: block; font-size: 0.7rem; color: var(--text-muted); font-family: var(--font-mono); }

/* ---- FOOTER ---- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

.footer-brand .logo-kf {
  width: 48px;
  height: 48px;
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.social-links {
  display: flex;
  gap: 12px;
  list-style: none;
  padding: 0;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1rem;
  text-decoration: none;
  transition: all var(--transition);
}

.social-links a:hover {
  background: var(--accent-glow);
  border-color: rgba(0,212,170,.4);
  color: var(--accent);
  transform: translateY(-2px);
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-nav ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-admin-link a { color: var(--text-muted); font-size: 0.75rem; }
.footer-admin-link a:hover { color: var(--text-secondary); }

/* ---- ADMIN ---- */
.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: calc(100vh - var(--header-h));
}

.admin-sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  padding: 32px 0;
}

.admin-main {
  padding: 40px;
  max-width: 900px;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.admin-nav-link:hover, .admin-nav-link.active {
  background: var(--accent-glow);
  color: var(--accent);
}

@media (max-width: 768px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: flex; flex-wrap: wrap; gap: 4px; padding: 16px; border-right: none; border-bottom: 1px solid var(--border); }
  .admin-main { padding: 24px 16px; }
}

/* Form styles */
.form-group { margin-bottom: 24px; }

.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder { color: var(--text-muted); }

textarea.form-control { resize: vertical; min-height: 200px; font-family: var(--font-mono); font-size: 0.85rem; }

select.form-control { cursor: pointer; }

.form-check {
  display: flex;
  align-items: center;
  gap: 10px;
}

.form-check-input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.invalid-feedback { color: var(--red); font-size: 0.8rem; margin-top: 4px; }
.field-validation-error { color: var(--red); font-size: 0.8rem; }

.alert {
  padding: 14px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.alert-success {
  background: rgba(46, 160, 67, .15);
  border: 1px solid rgba(46, 160, 67, .4);
  color: #3fb950;
}

.alert-danger {
  background: rgba(248, 81, 73, .15);
  border: 1px solid rgba(248, 81, 73, .4);
  color: var(--red);
}

/* ---- DATA TABLE ---- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tr:hover td { background: var(--bg-elevated); }

.data-table td a { color: var(--accent); }

/* ---- PAGINATION ---- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  transition: all var(--transition);
}

.page-link:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); text-decoration: none; }
.page-link.active { background: var(--accent); border-color: var(--accent); color: var(--text-inverse); }
.page-link.disabled { opacity: 0.3; pointer-events: none; }
.page-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---- RESULTS COUNT ---- */
.results-count {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.results-count strong { color: var(--accent); }

/* ---- EMPTY STATE ---- */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-muted);
}

.empty-state i { font-size: 3rem; margin-bottom: 16px; display: block; opacity: .3; }
.empty-state h3 { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 8px; }

/* ---- CONTACT SECTION ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.contact-item:hover { border-color: rgba(0,212,170,.4); transform: translateX(4px); text-decoration: none; color: inherit; }
.contact-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ---- UTILITY ---- */
.divider { border: none; border-top: 1px solid var(--border); margin: 40px 0; }

.bg-surface { background: var(--bg-surface); }
.bg-base { background: var(--bg-base); }

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

.font-mono { font-family: var(--font-mono); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 48px 0; }
  .hero-ctas { flex-direction: column; }
  .stats-row { gap: 20px; }
  .book-showcase { padding: 24px; }
  .card { padding: 20px; }
}

/* ---- PRINT ---- */
@media print {
  .site-header, .site-footer, .sidebar-widget, .pagination, .btn { display: none !important; }
  body { background: #fff; color: #000; }
  a { color: #000; }
  .article-content pre { border: 1px solid #ccc; }
}

/* ---- HIGH CONTRAST MEDIA QUERY ---- */
@media (forced-colors: active) {
  .btn-primary { forced-color-adjust: none; }
  .post-card::before { display: none; }
}

/* ---- REDUCED MOTION ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .hero-avatar-ring { animation: none; }
  html { scroll-behavior: auto; }
}