:root {
  --bg: #0b0f1a;
  --surface: #0f1629;
  --text: #e6e9f2;
  --muted: #9aa3b2;
  --accent: #4cc3ff;
  --accent-2: #7b61ff;
  --border: #1f2a44;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial;
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(76, 195, 255, 0.15), transparent 60%),
              radial-gradient(900px 400px at 80% -10%, rgba(123, 97, 255, 0.18), transparent 55%),
              var(--bg);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 26, 0.65);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 16px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid transparent;
}

.nav a:hover {
  border-color: var(--border);
  background: var(--surface);
}

main {
  flex: 1;
  padding: 36px 0 56px;
}

main p, main li {
  line-height: 1.7;
}

h1, h2, h3 {
  letter-spacing: 0.3px;
}

.hero h2 {
  margin: 22px 0 12px;
  font-size: 1.1rem;
  color: var(--muted);
  letter-spacing: 0.6px;
}

.hero .card-grid {
  margin-bottom: 6px;
}

h1 {
  font-size: 2.3rem;
  margin-bottom: 12px;
}

h2 {
  margin-top: 32px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

a {
  color: var(--accent);
}

code {
  background: rgba(255,255,255,0.06);
  padding: 2px 6px;
  border-radius: 6px;
}

pre {
  background: rgba(255,255,255,0.06);
  padding: 12px 14px;
  border-radius: 10px;
  overflow: auto;
  border: 1px solid var(--border);
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 0 28px;
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: all 0.2s ease;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.card-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.card-icon img {
  width: 20px;
  height: 20px;
}

.card-desc {
  color: var(--muted);
}

.card:hover {
  border-color: rgba(76, 195, 255, 0.5);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.hero {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(76,195,255,0.08), rgba(123,97,255,0.08));
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 12px 0 22px;
}

.section-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: block;
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s ease;
}

.section-card:hover {
  border-color: rgba(76, 195, 255, 0.5);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  transform: translateY(-2px);
}

.section-card .title {
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.badge {
  display: inline-block;
  font-size: 0.78rem;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  margin-left: 6px;
}

.note {
  background: rgba(76,195,255,0.08);
  border: 1px solid rgba(76,195,255,0.25);
  padding: 12px 14px;
  border-radius: 10px;
  margin: 10px 0 18px;
}

.hero p {
  color: var(--muted);
}

/* Roadmap & Features Styling */
.header-section {
  text-align: center;
  margin-bottom: 40px;
  padding-top: 20px;
}

.header-section .subtitle {
  color: var(--muted);
  font-size: 1.2rem;
  margin-top: -10px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.col-md-12 {
  width: 100%;
}

.mb-4 {
  margin-bottom: 24px;
}

.completed-section {
  border-color: rgba(46, 204, 113, 0.3);
  background: linear-gradient(to bottom, rgba(46, 204, 113, 0.05), transparent);
}

.completed-section h2 {
  color: #2ecc71;
  border-color: rgba(46, 204, 113, 0.3);
}

.feature-list h3 {
  color: var(--accent);
  margin-top: 24px;
  margin-bottom: 12px;
  font-size: 1.15rem;
  border-bottom: none;
}

.feature-list ul {
  list-style: none;
  padding-left: 0;
}

.feature-list li {
  margin-bottom: 10px;
  padding-left: 28px;
  position: relative;
  line-height: 1.6;
}

.feature-list li::before {
  content: "○";
  color: var(--muted);
  position: absolute;
  left: 0;
  top: 0;
  font-weight: bold;
}

.checked-list li::before {
  content: "✓";
  color: #2ecc71;
  font-weight: 800;
}