/* ==========================================================================
   VLADY - Personal Blog Design System & Stylesheet
   Dark Theme with Electric Yellow Accents & Glassmorphism
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500&family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* Color Palette */
  --bg-main: #0b0c10;
  --bg-surface: #12141c;
  --bg-surface-elevated: #1a1d28;
  --bg-card: rgba(20, 22, 32, 0.65);
  --bg-card-hover: rgba(28, 31, 46, 0.85);
  --bg-glass: rgba(11, 12, 16, 0.85);
  --bg-input: rgba(18, 20, 28, 0.8);

  /* Yellow Accent Spectrum */
  --yellow-primary: #ffd700;
  --yellow-bright: #ffe500;
  --yellow-light: #fff280;
  --yellow-dark: #ccac00;
  --yellow-amber: #f59e0b;
  --yellow-glow: 0 0 20px rgba(255, 215, 0, 0.35);
  --yellow-glow-lg: 0 0 35px rgba(255, 215, 0, 0.5);
  --yellow-dim: rgba(255, 215, 0, 0.12);
  --yellow-border: rgba(255, 215, 0, 0.25);

  /* Typography Colors */
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-tertiary: #6b7280;
  --text-inverse: #0b0c10;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.15);

  /* Fonts */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-code: 'Fira Code', monospace;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Layout Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Max widths */
  --max-width-site: 1240px;
  --max-width-content: 780px;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

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

/* Ambient Cyber Glow Background Effects */
body::before {
  content: '';
  position: fixed;
  top: -150px;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.07) 0%, rgba(245, 158, 11, 0.02) 50%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -150px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(255, 215, 0, 0.25);
  border-radius: 5px;
  border: 2px solid var(--bg-main);
}

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

/* Selection Highlight */
::selection {
  background: var(--yellow-primary);
  color: var(--text-inverse);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
}

/* Utility Containers */
.container {
  width: 100%;
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Reading Progress Bar */
.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 1000;
}

.reading-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-bright));
  box-shadow: 0 0 10px var(--yellow-primary);
  transition: width 0.1s ease-out;
}

/* Header & Navbar */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 900;
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-normal), border var(--transition-normal);
}

.site-header.scrolled {
  border-bottom-color: var(--yellow-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-dark));
  color: var(--text-inverse);
  font-weight: 900;
  font-size: 1.2rem;
  box-shadow: var(--yellow-glow);
  transition: transform var(--transition-spring), box-shadow var(--transition-normal);
}

.brand-logo:hover .logo-badge {
  transform: rotate(-6deg) scale(1.08);
  box-shadow: var(--yellow-glow-lg);
}

.logo-text {
  text-transform: uppercase;
}

.logo-text .yellow-accent {
  color: var(--yellow-primary);
}

.logo-dot {
  color: var(--yellow-primary);
  display: inline-block;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--yellow-primary);
  box-shadow: 0 0 8px var(--yellow-primary);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}

.btn-icon:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--yellow-border);
  color: var(--yellow-primary);
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.15);
}

.badge-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--yellow-primary);
  color: var(--text-inverse);
  font-size: 0.7rem;
  font-weight: 800;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-amber));
  color: var(--text-inverse);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  box-shadow: var(--yellow-glow);
  transition: all var(--transition-normal);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--yellow-glow-lg);
  background: linear-gradient(135deg, var(--yellow-bright), var(--yellow-primary));
}

.btn-cta:active {
  transform: translateY(0);
}

/* Mobile Hamburger Toggle */
.mobile-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 42px;
  height: 42px;
  padding: 10px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  z-index: 1001;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--yellow-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.mobile-hamburger.open .line-1 {
  transform: translateY(8px) rotate(45deg);
}

.mobile-hamburger.open .line-2 {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-hamburger.open .line-3 {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 360px;
  height: 100vh;
  background: rgba(14, 16, 24, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--yellow-border);
  z-index: 1000;
  padding: 6rem 2rem 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.8);
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: color var(--transition-fast);
}

.mobile-nav-link i {
  color: var(--yellow-primary);
  font-size: 1.1rem;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--yellow-primary);
}

.mobile-drawer-footer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

.mobile-social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

/* Main Hero Section */
.hero-section {
  padding: 4.5rem 0 3.5rem 0;
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--yellow-dim);
  border: 1px solid var(--yellow-border);
  color: var(--yellow-primary);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero-title .yellow-gradient {
  background: linear-gradient(135deg, var(--yellow-bright) 0%, var(--yellow-primary) 60%, var(--yellow-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 600px;
}

/* Quick Search Box inside Hero */
.hero-search-box {
  position: relative;
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero-search-input {
  width: 100%;
  padding: 1rem 1.25rem 1rem 3.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.hero-search-input:focus {
  border-color: var(--yellow-primary);
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.25);
  background: var(--bg-surface-elevated);
}

.hero-search-icon {
  position: absolute;
  left: 1.15rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--yellow-primary);
  font-size: 1.1rem;
  pointer-events: none;
}

.hero-search-kbd {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: var(--font-code);
  color: var(--text-tertiary);
}

/* Hero Stats Pills */
.hero-stats {
  display: flex;
  gap: 2rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

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

.stat-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.75rem;
  color: var(--yellow-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Hero Author Card / Graphic Visual */
.hero-visual {
  position: relative;
}

.author-card-preview {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.author-card-preview::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-amber));
}

.author-header-flex {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.author-avatar-wrapper {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-amber));
  box-shadow: var(--yellow-glow);
  flex-shrink: 0;
}

.author-avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-surface-elevated);
}

.author-meta h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;

}

.author-meta p {
  color: var(--yellow-primary);
  font-size: 0.85rem;
  font-weight: 600;
}

.author-bio {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.author-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

/* Category Filter Bar */
.filter-section {
  padding: 1.5rem 0;
  margin-bottom: 2.5rem;
}

.filter-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.category-pills {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.category-pills::-webkit-scrollbar {
  display: none;
}

.filter-btn {
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.filter-btn.active {
  background: var(--yellow-primary);
  color: var(--text-inverse);
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.view-options {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sort-select {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}

.sort-select:focus {
  border-color: var(--yellow-primary);
}

/* Featured Post Banner Card */
.featured-section {
  margin-bottom: 3.5rem;
}

.featured-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 35px rgba(255, 215, 0, 0.15);
  border-color: var(--yellow-primary);
}

.featured-content {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--yellow-primary);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.featured-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.featured-card:hover .featured-title {
  color: var(--yellow-primary);
}

.featured-excerpt {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.post-meta-inline {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--text-tertiary);
  font-size: 0.85rem;
  margin-bottom: 1.75rem;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.meta-item i {
  color: var(--yellow-primary);
}

.featured-action-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.featured-media {
  position: relative;
  background: var(--bg-surface-elevated);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.featured-media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.featured-card:hover .featured-media svg {
  transform: scale(1.05);
}

/* Articles Grid Section */
.articles-section {
  margin-bottom: 5rem;
}

.section-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title-accent {
  width: 12px;
  height: 24px;
  background: var(--yellow-primary);
  border-radius: 3px;
  box-shadow: var(--yellow-glow);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

/* Article Card */
.article-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--yellow-border);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 215, 0, 0.1);
  background: var(--bg-card-hover);
}

.card-media-wrapper {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-surface-elevated);
}

.card-media-wrapper svg,
.card-media-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .card-media-wrapper svg,
.article-card:hover .card-media-wrapper img {
  transform: scale(1.06);
}

.category-tag-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.3rem 0.8rem;
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--yellow-border);
  color: var(--yellow-primary);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
}

.bookmark-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.bookmark-btn:hover,
.bookmark-btn.active {
  color: var(--yellow-primary);
  border-color: var(--yellow-primary);
  background: var(--bg-surface);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.article-card:hover .card-title {
  color: var(--yellow-primary);
}

.card-excerpt {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.like-btn:hover,
.like-btn.liked {
  color: var(--yellow-primary);
  background: var(--yellow-dim);
}

/* Empty Search State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-surface);
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-lg);
  grid-column: 1 / -1;
}

.empty-icon {
  font-size: 3rem;
  color: var(--yellow-primary);
  margin-bottom: 1rem;
}

.empty-state h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* About Vlady Banner Section */
.about-section {
  margin-bottom: 5rem;
}

.about-card-large {
  background: linear-gradient(135deg, rgba(18, 20, 28, 0.95), rgba(26, 29, 40, 0.95));
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 3rem;
  align-items: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.about-card-large::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.12), transparent 70%);
  pointer-events: none;
}

.about-graphic-box {
  text-align: center;
}

.about-avatar-lg {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  padding: 4px;
  background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-amber));
  margin: 0 auto 1.5rem auto;
  box-shadow: var(--yellow-glow-lg);
}

.about-avatar-lg svg,
.about-avatar-lg img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-main);
}

.skills-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.skill-pill {
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  border-color: var(--yellow-primary);
  color: var(--yellow-primary);
}

/* Newsletter Subscription Section */
.newsletter-section {
  margin-bottom: 5rem;
}

.newsletter-box {
  background: radial-gradient(circle at top right, rgba(255, 215, 0, 0.15), transparent 60%), var(--bg-surface);
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--yellow-glow);
}

.newsletter-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.newsletter-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 2rem auto;
}

.newsletter-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  gap: 0.75rem;
}

.newsletter-input {
  flex: 1;
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--bg-main);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.newsletter-input:focus {
  border-color: var(--yellow-primary);
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.2);
}

/* Modal Reader System */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 9, 12, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1200;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem 1rem;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: var(--max-width-content);
  position: relative;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.8), 0 0 40px rgba(255, 215, 0, 0.15);
  margin-top: 2rem;
  margin-bottom: 3rem;
  overflow: hidden;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 10;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--yellow-primary);
  border-color: var(--yellow-primary);
  transform: rotate(90deg);
}

.article-reader-content {
  padding: 3rem 2.5rem;
}

.reader-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 2rem;
}

.reader-tag {
  display: inline-block;
  color: var(--yellow-primary);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.reader-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.reader-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.author-meta-mini {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar-mini {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--yellow-primary);
  padding: 2px;
}

.author-avatar-mini img,
.author-avatar-mini svg {
  width: 100%;
  height: 100%;
  border-radius: 50%;
}

/* Audio Listener Widget inside Reader */
.audio-player-widget {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.audio-play-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--yellow-primary);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: var(--yellow-glow);
  transition: transform var(--transition-fast);
}

.audio-play-btn:hover {
  transform: scale(1.06);
}

.audio-info {
  flex-grow: 1;
}

.audio-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.audio-progress-bar {
  width: 100%;
  height: 4px;
  background: var(--bg-main);
  border-radius: 2px;
  margin-top: 6px;
  overflow: hidden;
}

.audio-progress-fill {
  width: 35%;
  height: 100%;
  background: var(--yellow-primary);
}

/* Typography Inside Article Body */
.reader-body {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #e5e7eb;
}

.reader-body p {
  margin-bottom: 1.75rem;
}

.reader-body h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  margin: 2.5rem 0 1rem 0;
  color: var(--text-primary);
  border-left: 4px solid var(--yellow-primary);
  padding-left: 0.85rem;
}

.reader-body h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2rem 0 0.85rem 0;
  color: var(--yellow-primary);
}

.reader-body blockquote {
  background: var(--bg-surface-elevated);
  border-left: 4px solid var(--yellow-primary);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-secondary);
}

.reader-body code {
  font-family: var(--font-code);
  background: rgba(255, 215, 0, 0.1);
  color: var(--yellow-primary);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.reader-body pre {
  background: #0d0e14;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  overflow-x: auto;
  margin: 2rem 0;
  position: relative;
}

.reader-body pre code {
  background: none;
  color: #f3f4f6;
  padding: 0;
}

.code-copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.code-copy-btn:hover {
  color: var(--yellow-primary);
  border-color: var(--yellow-primary);
}

/* Interactive Clap / Appreciation Button */
.clap-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 0 2rem 0;
  border-top: 1px solid var(--border-subtle);
  margin-top: 3rem;
}

.clap-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 2px solid var(--yellow-primary);
  color: var(--yellow-primary);
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--yellow-glow);
  transition: transform var(--transition-spring), box-shadow var(--transition-fast);
  position: relative;
}

.clap-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--yellow-glow-lg);
  background: var(--yellow-dim);
}

.clap-btn:active {
  transform: scale(0.95);
}

.clap-count-text {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.75rem;
}

/* Search Modal Overlay */
.search-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 9, 12, 0.85);
  backdrop-filter: blur(16px);
  z-index: 1300;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 10vh;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.search-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-modal-card {
  width: 100%;
  max-width: 640px;
  background: var(--bg-surface);
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), var(--yellow-glow);
  overflow: hidden;
  padding: 1.5rem;
}

.search-modal-input-wrapper {
  position: relative;
  margin-bottom: 1.25rem;
}

.search-modal-input {
  width: 100%;
  padding: 1.1rem 1.25rem 1.1rem 3.25rem;
  background: var(--bg-main);
  border: 1px solid var(--yellow-primary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1.1rem;
  outline: none;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}

.search-results-list {
  max-height: 380px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.search-result-item {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-result-item:hover {
  border-color: var(--yellow-primary);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.search-result-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.search-result-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--yellow-primary);
  color: var(--text-primary);
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), var(--yellow-glow);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: toastIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast i {
  color: var(--yellow-primary);
  font-size: 1.1rem;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Footer Section */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2.5rem 0;
  color: var(--text-secondary);
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-desc {
  color: var(--text-tertiary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--yellow-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .featured-card {
    grid-template-columns: 1fr;
  }

  .about-card-large {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }

  .mobile-hamburger {
    display: flex;
  }

  .hero-title {
    font-size: 2.2rem;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form button {
    width: 100%;
    justify-content: center;
  }

  .article-reader-content {
    padding: 2rem 1.25rem;
  }
}

/* ==========================================================================
   Projects Section & Project Teaser Cards
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
  margin-top: 2.5rem;
  text-align: left;
}

.project-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  transition: background var(--transition-fast);
}

.project-card.featured-project {
  border-color: var(--yellow-border);
  background: linear-gradient(145deg, rgba(26, 29, 40, 0.95), rgba(18, 20, 28, 0.98));
}

.project-card.featured-project::before {
  background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-bright));
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--yellow-border);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4), var(--yellow-glow);
}

.project-card:hover::before {
  background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-bright));
}

.project-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.project-card-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--yellow-dim);
  color: var(--yellow-primary);
  border: 1px solid var(--yellow-border);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.project-card-badge.secondary-badge {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border-color: var(--border-subtle);
}

.project-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(255, 215, 0, 0.1);
  border: 1px solid var(--yellow-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--yellow-primary);
  margin-bottom: 1.25rem;
  transition: transform var(--transition-spring), background var(--transition-normal), color var(--transition-normal);
}

.project-card:hover .project-card-icon {
  transform: scale(1.1) rotate(-6deg);
  background: var(--yellow-primary);
  color: var(--text-inverse);
  box-shadow: var(--yellow-glow);
}

.project-card-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  line-height: 1.3;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.project-tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.project-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.8rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--yellow-primary);
  color: var(--text-inverse);
  transition: all var(--transition-fast);
  text-align: center;
  width: 100%;
}

.project-card:hover .project-cta-btn {
  background: var(--yellow-bright);
  box-shadow: var(--yellow-glow);
}

.project-cta-btn.secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-tertiary);
  border: 1px solid var(--border-subtle);
}

.project-card:hover .project-cta-btn.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  box-shadow: none;
}

/* ==========================================================================
   Quiz Application Styles
   ========================================================================== */
.quiz-section {
  padding: 3rem 0 5rem 0;
}

.quiz-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 2rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.back-link:hover {
  color: var(--yellow-primary);
  border-color: var(--yellow-border);
  background: var(--yellow-dim);
}

.quiz-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

.quiz-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.quiz-header-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.quiz-header-title h1 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
}

.quiz-sound-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quiz-sound-toggle:hover {
  color: var(--yellow-primary);
  border-color: var(--yellow-border);
}

.quiz-progress-bar-container {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 2rem;
}

.quiz-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-bright));
  box-shadow: 0 0 10px var(--yellow-primary);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.quiz-meta-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.quiz-question-number {
  font-weight: 700;
  color: var(--yellow-primary);
}

.quiz-score-live {
  font-weight: 600;
}

.quiz-question-box {
  background: rgba(11, 12, 16, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-bottom: 2rem;
}

.quiz-question-text {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.quiz-answers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .quiz-answers-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.quiz-answer-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.quiz-answer-btn:hover:not(:disabled) {
  background: var(--yellow-dim);
  border-color: var(--yellow-border);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.15);
}

.quiz-answer-prefix {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.quiz-answer-btn:hover:not(:disabled) .quiz-answer-prefix {
  background: var(--yellow-primary);
  color: var(--text-inverse);
}

.quiz-answer-btn.correct {
  background: rgba(34, 197, 94, 0.15) !important;
  border-color: rgba(34, 197, 94, 0.6) !important;
  color: #4ade80 !important;
}

.quiz-answer-btn.correct .quiz-answer-prefix {
  background: #22c55e !important;
  color: #fff !important;
}

.quiz-answer-btn.wrong {
  background: rgba(239, 68, 68, 0.15) !important;
  border-color: rgba(239, 68, 68, 0.6) !important;
  color: #f87171 !important;
  animation: shake 0.4s ease-in-out;
}

.quiz-answer-btn.wrong .quiz-answer-prefix {
  background: #ef4444 !important;
  color: #fff !important;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.quiz-explanation-box {
  background: rgba(255, 215, 0, 0.08);
  border: 1px solid var(--yellow-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
  display: none;
  animation: fadeIn 0.3s ease-out;
}

.quiz-explanation-title {
  font-weight: 700;
  color: var(--yellow-primary);
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.quiz-explanation-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.quiz-next-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-md);
  background: var(--yellow-primary);
  color: var(--text-inverse);
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
}

.quiz-next-btn:hover {
  background: var(--yellow-bright);
  box-shadow: var(--yellow-glow);
}

.quiz-results-card {
  text-align: center;
}

.results-score-circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--yellow-dim) 0%, rgba(18, 20, 28, 0.9) 70%);
  border: 4px solid var(--yellow-primary);
  box-shadow: var(--yellow-glow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem auto;
}

.results-score-number {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--yellow-primary);
  line-height: 1;
}

.results-score-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-top: 0.2rem;
}

.results-rank-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.results-rank-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 550px;
  margin: 0 auto 2rem auto;
  line-height: 1.6;
}

.results-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.btn-quiz-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-quiz-primary {
  background: var(--yellow-primary);
  color: var(--text-inverse);
}

.btn-quiz-primary:hover {
  background: var(--yellow-bright);
  box-shadow: var(--yellow-glow);
}

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

.btn-quiz-outline:hover {
  border-color: var(--yellow-primary);
  color: var(--yellow-primary);
  background: var(--yellow-dim);
}