/* Trang chủ alktn.com — CSS chuyển nguyên từ <b:skin> của mẫu Blogger (09/10/2026).
   Đã bỏ các quy tắc chỉ có ý nghĩa trên Blogger (.quick-edit, .blog-pager, .post-title, .site-notice…). */
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  background: linear-gradient(135deg, #f0f9ff, #e8fdf5);
  color: #0f172a;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1200px;
  padding: 24px;
  box-sizing: border-box;
  text-align: center;
}

.logo-top {
  width: 180px;
  height: auto;
  margin: 24px auto 16px auto;
  display: block;
}

.logo-bottom {
  width: 120px;
  height: auto;
  margin: 24px auto;
  display: block;
}

h1 {
  margin: 0 0 8px 0;
  font-size: 32px;
  font-weight: 800;
  color: #0f1b3f;
}

p.subtitle {
  margin: 0 0 28px 0;
  color: #475569;
  font-size: 16px;
}

.choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-bottom: 40px;
}

.choice-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 20px;
  border-radius: 18px;
  background: white;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  text-decoration: none;
  color: inherit;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.choice-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.choice-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(56,189,248,0.12), rgba(34,197,94,0.12));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.choice-card:hover::before {
  opacity: 1;
}

.card-content {
  display: flex;
  align-items: flex-start;
  width: 100%;
  text-align: left;
}

.badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  color: white;
  flex-shrink: 0;
  margin-right: 12px;
  margin-bottom: 0;
}

.c1 { background: linear-gradient(135deg,#22d3ee,#0ea5e9); }
.c2 { background: linear-gradient(135deg,#a855f7,#7e22ce); }
.c3 { background: linear-gradient(135deg,#facc15,#eab308); }
.c4 { background: linear-gradient(135deg,#fb7185,#e11d48); }
.c5 { background: linear-gradient(135deg,#818cf8,#4f46e5); }
.c5 { background: linear-gradient(135deg,#34d399,#059669); }
.c6 { background: linear-gradient(135deg,#2dd4bf,#0f766e); }
.c6 { background: linear-gradient(135deg,#60a5fa,#2563eb); }

.text-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 6px 0;
}

.desc {
  font-size: 14px;
  color: #475569;
  margin: 0;
  text-align: left;
}

.arrow {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: rgba(15,23,42,0.25);
}

footer {
  text-align: center;
  color: #64748b;
  font-size: 13px;
  margin-bottom: 28px;
}

@media (max-width: 600px) {
  h1 { font-size: 26px; }
  .choice-card { padding: 16px; }
  .badge { width: 38px; height: 38px; font-size: 16px; }
  .logo-bottom { width: 100px; }
}