@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Claude.ai Warm Light Theme Colors */
  --bg-primary: #FBF9F6;      /* Off-white paper background */
  --bg-secondary: #FFFFFF;    /* Pure white for cards */
  --bg-tertiary: #F3EFE9;     /* Cream background for steps/sections */
  --text-primary: #191919;    /* Dark warm charcoal */
  --text-secondary: #3D3935;  /* Secondary dark charcoal */
  --text-muted: #7E7873;      /* Warm gray-brown for muted text */
  --accent-color: #D96B43;    /* Warm terracotta peach/orange */
  --accent-light: #E08A69;    /* Lighter warm terracotta */
  --accent-dark: #B54F2A;     /* Deeper warm terracotta */
  --accent-soft: rgba(217, 107, 67, 0.08); /* 8% opacity terracotta */
  --accent-gradient: linear-gradient(135deg, #D96B43, #B54F2A);
  
  --success-color: #5F7D3A;   /* Muted olive green */
  --success-soft: rgba(95, 125, 58, 0.08);
  --error-color: #CD5249;     /* Muted red/coral */
  --error-soft: rgba(205, 82, 73, 0.08);
  --warning-color: #E2AC13;   /* Warm mustard yellow */
  --warning-soft: rgba(226, 172, 19, 0.08);
  
  --border-color: #EAE6DF;    /* Warm light border */
  --ring-bg: #EAE6DF;
  --shadow-sm: 0 1px 3px rgba(61, 57, 53, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(61, 57, 53, 0.05), 0 2px 4px -1px rgba(61, 57, 53, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(61, 57, 53, 0.06), 0 4px 6px -2px rgba(61, 57, 53, 0.04);
  
  --font-sans: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
}

/* Global Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

html {
  scroll-behavior: smooth;
  width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  width: 100%;
  overflow-x: hidden;
  position: relative;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

a {
  color: var(--accent-light);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

p {
  color: var(--text-secondary);
}

/* Utilities */
.hidden {
  display: none !important;
}

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

/* Topbar Header */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 249, 246, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text-primary);
}
.brand:hover {
  text-decoration: none;
}

.brand-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  box-shadow: 0 0 10px rgba(217, 107, 67, 0.3);
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav a:hover {
  color: var(--accent-light);
  text-decoration: none;
}

.nav-toggle {
  display: none;
}

.lang-select {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  cursor: pointer;
  outline: none;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.theme-toggle:hover {
  background-color: var(--accent-soft);
}

/* Button & Pill */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn.primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow-sm);
}
.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(217, 107, 67, 0.25);
}

.btn.accent {
  background: var(--success-color);
  color: white;
}
.btn.accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

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

.btn.small {
  padding: 6px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background-color: var(--accent-soft);
  color: var(--accent-light);
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Hero Section */
.hero {
  padding: 80px 0;
  background: radial-gradient(circle at 10% 20%, rgba(217, 107, 67, 0.04) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(226, 172, 19, 0.04) 0%, transparent 40%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hero-slogan {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-light);
  margin-bottom: 12px;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.1;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-primary), var(--text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero h2.subtitle {
  font-size: 1.8rem;
  color: var(--accent-light);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero p.desc {
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 600px;
}

.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

/* Hero Card Info */
.hero-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}

.hero-card h2 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.glance-list {
  list-style: none;
  margin-bottom: 24px;
}

.glance-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stat {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.stat .k {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-light);
}

.stat .l {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* Feature Grid Section */
.features-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.section-head {
  margin-bottom: 48px;
  text-align: center;
}

.section-head h2 {
  font-size: 2.2rem;
  margin-top: 12px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card.feature .ico {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--accent-soft);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card.feature .ico svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.card.feature h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.card.feature p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Steps Pipeline Section */
.steps-section {
  padding: 80px 0;
  background-color: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.step {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  counter-increment: step-counter;
}

.step::before {
  content: "0" counter(step-counter);
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-soft);
  font-size: 2rem;
  line-height: 1;
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  padding-right: 40px;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Community Post & Donate Section */
.info-section {
  padding: 80px 0;
}

.card.reddit {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: start;
  border-left: 4px solid #ff4500;
}

.card.reddit .logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #ff4500;
  color: white;
  font-weight: 800;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card.reddit .meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.card.reddit blockquote {
  font-size: 1.05rem;
  font-style: italic;
  margin-bottom: 20px;
  color: var(--text-secondary);
  border-left: 2px solid var(--border-color);
  padding-left: 16px;
}

.links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  padding: 6px 14px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.chip:hover {
  border-color: var(--accent-light);
  color: var(--text-primary);
  text-decoration: none;
}

.donate-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  margin-top: 48px;
  box-shadow: var(--shadow-md);
}

.donate-box .coin {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--warning-soft);
  color: var(--warning-color);
  display: flex;
  align-items: center;
  justify-content: center;
}
.donate-box .coin svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.donate-box h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

/* Stats and Leaderboard */
.stats-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.leaderboard {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.leaderboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.lb-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.input {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
}
.input:focus {
  border-color: var(--accent-light);
}

.lb-scroll {
  overflow-x: auto;
}

.lb-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.lb-table th, .lb-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

.lb-table th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lb-table tbody tr:hover {
  background-color: var(--bg-tertiary);
}

.pass-badge {
  background-color: var(--success-soft);
  color: var(--success-color);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.fail-badge {
  background-color: var(--error-soft);
  color: var(--error-color);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* Exam Simulator Engine */
.exam-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.exam-wrap {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.exam-head {
  padding: 24px 32px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.exam-head .title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.timer {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--warning-color);
  background-color: rgba(245, 158, 11, 0.1);
  padding: 6px 16px;
  border-radius: var(--radius-sm);
}

.exam-body {
  padding: 40px;
}

/* Start Screen inside Exam */
.start-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
}

.start-grid h3 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.auth-box {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 24px 0;
}

.auth-box h4 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.auth-box p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.auth-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.auth-input {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
}
.auth-input:focus {
  border-color: var(--accent-light);
}

.rules {
  background-color: rgba(217, 107, 67, 0.03);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}

.rules h2 {
  font-size: 1.15rem;
  margin-bottom: 16px;
}

.rules ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.rules li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.kbd {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

/* Progress Components */
.progress-bar-container {
  height: 6px;
  background-color: var(--bg-primary);
  border-radius: 9999px;
  margin-bottom: 24px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  width: 0%;
  transition: width 0.3s ease;
}

/* Question Running Layout */
.q-layout {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 32px;
}

.q-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
}

.q-num {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 8px;
}

.q-text {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.q-opts {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.q-opt {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.95rem;
}
.q-opt:hover {
  border-color: var(--accent-light);
  background-color: var(--accent-soft);
}
.q-opt.selected {
  border-color: var(--accent-color);
  background-color: var(--accent-soft);
}

.q-opt input {
  margin-top: 4px;
}

.q-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.flag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
}

/* Question Palette */
.palette h4 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}

.palette-btn {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.palette-btn.active {
  border-color: var(--accent-light);
  box-shadow: 0 0 5px rgba(99, 102, 241, 0.4);
}
.palette-btn.answered {
  background-color: var(--accent-soft);
  border-color: var(--accent-color);
  color: var(--accent-light);
}
.palette-btn.flagged {
  background-color: var(--warning-soft);
  border-color: var(--warning-color);
  color: var(--warning-color);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.swatch-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}
.swatch.ans { background-color: var(--accent-soft); border: 1px solid var(--accent-color); }
.swatch.flag { background-color: var(--warning-soft); border: 1px solid var(--warning-color); }
.swatch.un { background-color: var(--bg-primary); border: 1px solid var(--border-color); }

/* Result and Breakdown Screen */
.result-v2 {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.result-v2-top {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: center;
}

.score-ring {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto;
}

.score-ring svg {
  transform: rotate(-90deg);
}

.score-ring .s-bg {
  stroke: var(--ring-bg);
}

.score-ring .s-fg {
  stroke: var(--accent-color);
  stroke-linecap: round;
  transition: stroke-dashoffset 1s ease-in-out;
}

.score-ring.pass .s-fg {
  stroke: var(--success-color);
}

.score-ring .center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.score-ring .center .val {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
}

.score-ring .center .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

.score-ring .center .pct {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-top: 2px;
}

.result-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.pass-tag {
  background-color: var(--success-soft);
  color: var(--success-color);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.result-head {
  font-size: 2rem;
  margin-bottom: 8px;
}

.result-sum {
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.result-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.domain-bar-row {
  margin-bottom: 16px;
}

.domain-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.domain-bar-bg {
  height: 8px;
  background-color: var(--bg-primary);
  border-radius: 9999px;
  overflow: hidden;
}

.domain-bar-fill {
  height: 100%;
  background-color: var(--accent-color);
  border-radius: 9999px;
}

.review-gate {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background-color: var(--warning-soft);
  border: 1px solid var(--warning-color);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.review-gate-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--warning-color);
  stroke-width: 2;
}

.review-gate-title {
  font-weight: 600;
  color: var(--text-primary);
}

.review-gate-msg {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Review Mode Screen */
.review-item {
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 20px;
}

.review-item-q {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.review-opts {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.review-opt {
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.review-opt.correct {
  background-color: var(--success-soft);
  border-color: var(--success-color);
  color: var(--text-primary);
}

.review-opt.incorrect {
  background-color: var(--error-soft);
  border-color: var(--error-color);
  color: var(--text-primary);
}

.review-explanation {
  background-color: var(--bg-secondary);
  border-left: 3px solid var(--accent-color);
  padding: 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.9rem;
}

/* Flashcard Mode View */
.flashcard {
  perspective: 1000px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  cursor: pointer;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.fc-badge {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.fc-text {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 24px;
}

.fc-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.fc-answer {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  margin-top: 20px;
  width: 100%;
  text-align: left;
}

.fc-answer-title {
  font-weight: 700;
  color: var(--success-color);
  margin-bottom: 10px;
  text-align: center;
}

/* Admin / Back Office */
.admin-view {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.admin-form-group {
  margin-bottom: 16px;
}

.admin-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.admin-input {
  width: 100%;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
}

.admin-textarea {
  width: 100%;
  min-height: 100px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  resize: vertical;
}

/* Footer styling */
footer {
  background-color: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.brand-footer {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.footer-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.footer-links a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .start-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .q-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .result-v2-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .slide-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }
  .slide-img {
    max-height: 220px;
  }
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .donate-box {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 24px;
  }
  .donate-box .coin {
    margin: 0 auto;
  }
  .donate-box .btn {
    width: 100%;
  }
}

@media (max-width: 768px) {
  /* Prevent side padding issues and scale sections */
  .section {
    padding: 48px 0;
  }
  .container, .wrap {
    padding: 0 16px;
  }
  
  /* Typography Scaled Down */
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero h2.subtitle {
    font-size: 1.45rem;
  }
  .section-head h2, .videos-header h3 {
    font-size: 1.75rem;
  }
  
  /* Topbar & Mobile Hamburger Menu */
  .topbar-inner {
    position: relative;
    justify-content: space-between;
    width: 100%;
  }
  
  .nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: calc(100% + 17px);
    left: -16px;
    width: calc(100% + 32px);
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 24px 16px;
    gap: 16px;
    align-items: center;
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }
  
  .nav.open {
    display: flex;
  }
  
  .nav-toggle {
    display: flex;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    justify-content: center;
    align-items: center;
  }
  
  .nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.25s ease;
  }
  
  /* Hamburger Animation when Active */
  .nav-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  /* Stats grid stack */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  /* Exam layout padding reduction */
  .exam-head {
    padding: 16px 20px;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
  .exam-body {
    padding: 24px 16px;
  }
  .q-card {
    padding: 24px 16px;
  }
  
  /* Premium paywall card optimizations */
  .modal-card {
    padding: 24px 20px;
  }
  .modal-footer {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  /* Smaller phone grid layouts */
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .palette-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
  }
  .palette-btn {
    font-size: 0.95rem;
    padding: 10px 0;
  }
  .legend {
    flex-direction: column;
    gap: 8px;
  }
}

/* Coverage Section Styles */
.section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.sec-marker {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.sec-marker .glyph {
  color: var(--accent-color);
  font-size: 1rem;
}

.sec-marker .num {
  color: var(--text-primary);
}

.sec-marker .dot {
  color: var(--border-color);
}

.coverage-head {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .coverage-head {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.domain-row {
  display: grid;
  grid-template-columns: 60px 1.5fr 2fr 100px;
  gap: 24px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px dashed var(--border-color);
}

.domain-row:last-child {
  border-bottom: none;
}

@media (max-width: 768px) {
  .domain-row {
    grid-template-columns: 1fr;
    gap: 12px;
    align-items: start;
  }
  .domain-row div:last-child {
    text-align: left !important;
  }
}

.h-3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Success Stories Carousel styles */
.success-stories-section {
  padding: 80px 0;
  background-color: transparent;
  border-top: 1px solid var(--border-color);
}

.carousel-container {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 50px;
  display: flex;
  align-items: center;
}

.carousel-track-wrapper {
  overflow: hidden;
  width: 100%;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  width: 100%;
}

.carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
}

.slide-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 30px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-md);
  align-items: center;
}

.slide-img-container {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide-img {
  width: 100%;
  height: auto;
  max-height: 280px;
  object-fit: contain;
  display: block;
}

.slide-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.slide-info h4 {
  font-size: 1.4rem;
  font-family: var(--font-sans);
  color: var(--text-primary);
  margin: 0;
}

.slide-info .badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-color);
  background-color: var(--accent-soft);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.story-quote {
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
  border-left: 3px solid var(--border-color);
  padding-left: 14px;
}

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.carousel-nav:hover {
  background-color: var(--accent-soft);
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.carousel-nav.prev {
  left: 0;
}

.carousel-nav.next {
  right: 0;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.carousel-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--border-color);
  cursor: pointer;
  transition: all 0.2s ease;
}

.carousel-dots .dot:hover {
  background-color: var(--text-muted);
}

.carousel-dots .dot.active {
  background-color: var(--accent-color);
  transform: scale(1.2);
}

@media (max-width: 768px) {
  .carousel-container {
    padding: 0 10px;
  }
  .slide-card {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }
  .carousel-nav {
    display: none; /* Hide nav arrows on mobile */
  }
  .slide-img {
    max-height: 200px;
  }
}

/* Dynamic tech particle background canvas */
#tech-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
  opacity: 0.8;
}

/* Premium Gate Modal styling */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(61, 57, 53, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 520px;
  width: 90%;
  padding: 32px;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  text-align: left;
}

.modal-overlay.show .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.premium-badge {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  background-color: var(--accent-color);
  color: #fff;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.modal-header h3 {
  font-size: 1.6rem;
  color: var(--text-primary);
  margin: 0;
}

.premium-features {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}

.premium-features li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  position: relative;
  padding-left: 24px;
}

.premium-features li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

.modal-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.modal-footer .btn {
  width: 100%;
  justify-content: center;
  font-size: 0.95rem;
}

/* ==========================================================================
   Videos View Styling
   ========================================================================== */
.videos-header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.videos-header h3 {
  font-size: 2.2rem;
  color: var(--text-primary);
  margin-bottom: 12px;
  font-family: var(--font-sans);
}

.videos-header p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.05rem;
}

.videos-categories {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.video-category-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.category-title {
  font-size: 1.45rem;
  color: var(--accent-color);
  font-family: var(--font-sans);
  border-bottom: 2px solid var(--accent-soft);
  padding-bottom: 8px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.category-title::before {
  content: "✦";
  color: var(--accent-color);
  font-size: 1.1rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.video-thumbnail-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background-color: #000;
  overflow: hidden;
  cursor: pointer;
}

.video-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.video-card:hover .video-thumbnail {
  transform: scale(1.03);
}

.video-play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.video-thumbnail-container:hover .video-play-overlay {
  background: rgba(0, 0, 0, 0.4);
}

.video-play-btn {
  width: 56px;
  height: 56px;
  background-color: var(--accent-color);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.video-play-btn svg {
  margin-left: 2px;
  fill: currentColor;
}

.video-thumbnail-container:hover .video-play-btn {
  transform: scale(1.1);
  background-color: var(--accent-light);
}

.video-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 10px;
}

.video-badge {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--accent-soft);
  color: var(--accent-color);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.video-card-title {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

.original-title {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: normal;
  margin-top: 4px;
}

.video-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
  flex-grow: 1;
}

.video-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  margin-top: 8px;
  font-family: var(--font-sans);
}

.video-iframe {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  border: 0;
}