:root {
  --bg: #0f172a;
  --bg-accent: #1e293b;
  --card-bg: #1e293b;
  --card-bg-hover: #27374d;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #22d3ee;
  --shadow: rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Segoe UI", "Noto Sans Thai", "Tahoma", sans-serif;
  background: radial-gradient(circle at top, var(--bg-accent), var(--bg) 65%);
  color: var(--text);
  display: flex;
  justify-content: center;
  padding: 48px 20px;
}

.page {
  width: 100%;
  max-width: 960px;
}

.header {
  text-align: center;
  margin-bottom: 40px;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04283a;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px var(--shadow);
}

.header h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  font-weight: 700;
  color: #f8fafc;
}

.subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.card:hover,
.card:focus-visible {
  background: var(--card-bg-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--shadow);
  outline: none;
}

.card:active {
  transform: translateY(0);
}

.card-icon {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.12);
  font-size: 1.3rem;
}

.card-body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.card-title {
  font-weight: 600;
  font-size: 1rem;
  color: #f8fafc;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.card-arrow {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 1.2rem;
  opacity: 0.7;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.card:hover .card-arrow {
  transform: translateX(4px);
  opacity: 1;
}

.footer {
  text-align: center;
  margin-top: 40px;
  color: var(--text-muted);
  font-size: 0.85rem;
}