/* ═══════════════════════════════════════════════════════════════
   JeeVidya — Futuristic Dark Theme Design System
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS Variables (Design Tokens) ─────────────────────────── */
:root {
  --bg-primary: #f6f8fb;
  --bg-secondary: #edf2f7;
  --bg-tertiary: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-hover: rgba(255, 255, 255, 0.98);

  --accent-primary: #2563eb;
  --accent-secondary: #7c3aed;
  --accent-tertiary: #0ea5e9;
  --accent-glow: rgba(37, 99, 235, 0.12);
  --accent-glow-strong: rgba(37, 99, 235, 0.25);

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;

  --border-color: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(37, 99, 235, 0.25);
  --border-active: rgba(37, 99, 235, 0.5);

  --success: #16a34a;
  --warning: #ea580c;
  --danger: #dc2626;

  --gradient-brand: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.94) 0%, rgba(246, 248, 251, 0.78) 100%);

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.12);
  --shadow-glow-strong: 0 0 40px rgba(37, 99, 235, 0.18);
    rgba(14, 14, 26, 0.9) 0%,
    rgba(20, 18, 36, 0.6) 100%
  );

  /* Typography */
  --font-primary:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-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: 4rem;

  /* Borders & Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.1);
  --shadow-glow-strong: 0 0 60px rgba(0, 212, 255, 0.15);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --max-width: 1200px;
  --nav-height: 70px;
}

[data-theme="dark"] {
  --bg-primary: #0b1220;
  --bg-secondary: #0f172a;
  --bg-tertiary: #1e293b;
  --bg-card: rgba(15, 23, 42, 0.92);
  --bg-card-hover: rgba(15, 23, 42, 0.98);

  --text-primary: #e2e8f0;
  --text-secondary: #cbd5f5;
  --text-muted: #94a3b8;

  --border-color: rgba(148, 163, 184, 0.18);
  --border-hover: rgba(37, 99, 235, 0.35);
  --border-active: rgba(37, 99, 235, 0.55);

  --gradient-card: linear-gradient(145deg, rgba(15, 23, 42, 0.92) 0%, rgba(11, 18, 32, 0.85) 100%);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

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

/* ─── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg-secondary) 85%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: var(--bg-secondary);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  border-bottom-color: var(--border-hover);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-image {
  height: 50px;
  width: auto;
  display: block;
  transition: transform var(--transition-fast);
}

.nav-logo:hover .logo-image {
  transform: scale(1.05);
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--gradient-brand);
  border-radius: var(--radius-md);
  font-size: 1rem;
  color: var(--bg-primary);
}

.logo-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-sm);
  align-items: center;
}

.nav-menu li {
  display: flex;
  align-items: center;
  height: 32px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  height: 100%;
  box-sizing: border-box;
}

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

.nav-link.active {
  background: rgba(0, 212, 255, 0.1);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 32px;
  border-radius: 16px;
  border: 2px solid var(--border-color);
  background: var(--bg-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  padding: 0;
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}

.theme-toggle__track {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  overflow: hidden;
}

.theme-toggle__thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 24px;
  height: 24px;
  background: var(--gradient-brand);
  border-radius: 50%;
  transition: transform var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.theme-toggle__icon {
  font-size: 12px;
  color: white;
  transition: opacity var(--transition-fast);
}

.theme-toggle__icon--sun {
  opacity: 1;
}

.theme-toggle__icon--moon {
  opacity: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* Dark mode styles */
[data-theme="dark"] .theme-toggle__thumb {
  transform: translateX(28px);
}

[data-theme="dark"] .theme-toggle__icon--sun {
  opacity: 0;
}

[data-theme="dark"] .theme-toggle__icon--moon {
  opacity: 1;
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 10;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-base);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.nav-toggle.active .hamburger {
  background: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
  background: var(--accent-primary);
}

.nav-toggle.active .hamburger::after {
  transform: rotate(-45deg);
  top: 0;
  background: var(--accent-primary);
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */

.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + var(--space-3xl)) var(--space-xl)
    var(--space-3xl);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }

  100% {
    transform: translate(60px, 60px);
  }
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(
    ellipse,
    rgba(0, 212, 255, 0.08) 0%,
    rgba(139, 92, 246, 0.04) 40%,
    transparent 70%
  );
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 1;
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: var(--accent-glow);
  border: 1px solid var(--border-hover);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.6s ease-out;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
  margin-top: 2px;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ═══════════════════════════════════════════════════════════════
   POSTS SECTION
   ═══════════════════════════════════════════════════════════════ */

.posts-section {
  padding: var(--space-3xl) var(--space-xl);
}

.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.title-accent {
  display: inline-block;
  width: 4px;
  height: 28px;
  background: var(--gradient-brand);
  border-radius: 2px;
}

.section-subtitle {
  color: var(--text-muted);
  margin-top: var(--space-sm);
  font-size: 0.95rem;
}

/* Posts Grid */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-lg);
}

.post-card {
  animation: fadeInUp 0.5s ease-out both;
}

.post-card-inner {
  position: relative;
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  height: 100%;
}

.post-card-inner:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.post-card-accent {
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.post-card-inner:hover .post-card-accent {
  opacity: 1;
}

.post-card-content {
  padding: var(--space-lg) var(--space-xl);
}

.post-card-title {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.3px;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.post-card-inner:hover .post-card-title {
  color: var(--accent-primary);
}

.post-card-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.post-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-color);
}

.post-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.post-read-more {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-fast);
}

.post-card-inner:hover .post-read-more {
  gap: 10px;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.empty-icon {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

.empty-state p {
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════
   PAGINATION
   ═══════════════════════════════════════════════════════════════ */

/* Textual Post List Layout (Homepage Redesign) */
.post-list-container {
  display: flex;
  flex-direction: column;
  max-width: 900px;
  margin: 0 auto;
}

.post-list-item {
  padding: var(--space-xl) 0;
  border-bottom: 2px solid var(--border-color);
  transition: border-color var(--transition-fast);
}

.post-list-item:hover {
  border-bottom-color: var(--accent-primary);
}

.post-list-item:last-child {
  border-bottom: none;
}

.post-list-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-sm);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.post-list-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.post-list-title:hover {
  color: var(--accent-primary);
  text-decoration-thickness: 2px;
}

.post-list-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.post-list-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 800px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.page-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.page-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: var(--accent-glow);
}

.page-numbers {
  display: flex;
  gap: 6px;
}

.page-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.page-num:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.page-num.active {
  background: var(--gradient-brand);
  border-color: transparent;
  color: var(--bg-primary);
  font-weight: 700;
}

/* ═══════════════════════════════════════════════════════════════
   POST PAGE
   ═══════════════════════════════════════════════════════════════ */

.post-page {
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  min-height: 100vh;
}

.post-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--space-xl) var(--space-3xl);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.breadcrumb-link {
  color: var(--text-secondary);
  text-transform: capitalize;
  transition: color var(--transition-fast);
}

.breadcrumb-link:hover {
  color: var(--accent-primary);
}

.breadcrumb-sep {
  color: var(--text-muted);
  font-size: 0.7rem;
  opacity: 0.5;
}

.breadcrumb-current {
  color: var(--accent-primary);
  font-weight: 500;
  text-transform: capitalize;
}

/* Post Header */
.post-header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border-color);
}

.post-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: var(--space-md);
}

.post-meta-info {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.meta-item {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Post Content */
.post-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  color: var(--text-primary);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.post-content h2 {
  font-size: 1.6rem;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-color);
}

.post-content h3 {
  font-size: 1.3rem;
}

.post-content h4 {
  font-size: 1.1rem;
}

.post-content p {
  margin-bottom: var(--space-md);
}

.post-content a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-content a:hover {
  color: var(--accent-secondary);
}

.post-content ul,
.post-content ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-xl);
}

.post-content li {
  margin-bottom: var(--space-sm);
}

.post-content blockquote {
  border-left: 3px solid var(--accent-primary);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  background: var(--accent-glow);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}

.post-content pre {
  background: var(--bg-tertiary);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  border: 1px solid var(--border-color);
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-primary);
}

.post-content pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

.post-content img {
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  border: 1px solid var(--border-color);
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
}

.post-content th,
.post-content td {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  text-align: left;
}

.post-content th {
  background: var(--bg-tertiary);
  font-weight: 600;
  color: var(--text-primary);
}

/* Post Footer */
.post-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-primary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 10px 20px;
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.back-link:hover {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  gap: 12px;
}

/* ═══════════════════════════════════════════════════════════════
   404 ERROR PAGE
   ═══════════════════════════════════════════════════════════════ */

.error-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-xl);
}

.error-container {
  text-align: center;
  position: relative;
}

.error-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(0, 212, 255, 0.08) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.error-code {
  font-size: clamp(5rem, 15vw, 10rem);
  font-weight: 900;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.8;
  line-height: 1;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.error-desc {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.error-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--gradient-brand);
  color: var(--bg-primary);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.error-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-strong);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.footer-logo .logo-icon {
  width: 32px;
  height: 32px;
  font-size: 0.85rem;
}

.footer-logo .logo-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-links h4 {
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS (Shared)
   ═══════════════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-brand);
  color: var(--bg-primary);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.82rem;
}

/* ─── Premium Download Button ───────────────────────────────── */
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
  border: none;
  color: #ffffff !important;
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 12px 22px rgba(37, 99, 235, 0.3);
  transition: all var(--transition-fast);
  margin: var(--space-md) 0;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(37, 99, 235, 0.4);
  color: #ffffff;
}

.btn-download i {
  font-size: 1.1rem;
  margin-right: 2px;
}

/* Ensure buttons inside post content look like download button */
.post-content a.btn,
.post-content a.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
  border: none;
  color: #ffffff !important;
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 12px 22px rgba(37, 99, 235, 0.3);
  transition: all var(--transition-fast);
  margin: var(--space-md) 0;
}

.post-content a.btn:hover,
.post-content a.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(37, 99, 235, 0.4);
  color: #ffffff;
}

/* ─── Popup Links Trigger ─────────────────────────────────── */
.special-links {
  display: none;
}

.special-links-trigger {
  color: var(--accent-primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.special-links-trigger:hover {
  color: var(--accent-primary);
  text-decoration-thickness: 2px;
}

/* ─── Popup Links Modal ───────────────────────────────────── */
.site-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
}

.site-modal.is-open {
  display: block;
}

.site-modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 6, 11, 0.75);
  backdrop-filter: blur(10px);
}

.site-modal__dialog {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(560px, 92vw);
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px 26px 26px;
  box-shadow: var(--shadow-lg);
}

.site-modal__title {
  text-align: center;
  font-size: 1.1rem;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.site-modal__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.site-modal__list a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #f8fafc;
  color: #111827;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.site-modal__list a:hover {
  border-color: rgba(255, 255, 255, 0.35);
  color: #111827;
  background: #ffffff;
  transform: translateY(-1px);
}

.site-modal__close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.site-modal__close:hover {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

/* ═══════════════════════════════════════════════════════════════
   ALERTS
   ═══════════════════════════════════════════════════════════════ */

.alert {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

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

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 260px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl)
      var(--space-xl);
    border-left: 1px solid var(--border-color);
    transition: right var(--transition-slow);
    gap: var(--space-xs);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }

  .hero {
    min-height: 420px;
    padding: calc(var(--nav-height) + var(--space-xl)) var(--space-md)
      var(--space-xl);
  }

  .hero-stats {
    gap: var(--space-lg);
  }

  .stat-number {
    font-size: 1.4rem;
  }

  .posts-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .post-container {
    padding: 0 var(--space-md) var(--space-2xl);
  }

  .breadcrumb {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.78rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.6rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 1.4rem;
  }
}

/* ─── Main Content Spacing ──────────────────────────────────── */
.main-content {
  min-height: calc(100vh - 200px);
}