:root {
  color-scheme: light;
  --slate-950: #020617;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --surface: #ffffff;
  --brand: #0f172a;
  --accent: #10b981;
  --accent-strong: #059669;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  background-color: #f8fafc;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--slate-800);
  line-height: 1.65;
}

a {
  text-underline-offset: 3px;
}

.container {
  max-width: 1100px;
}

.card {
  border: 1px solid var(--slate-200);
  border-radius: 18px;
  background: var(--surface);
  padding: 18px;
  box-shadow: var(--shadow-sm);
}

.card-hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
  border-color: #cbd5e1;
}

.card-title {
  font-weight: 600;
  color: var(--slate-900);
}

.text-muted {
  color: var(--slate-500);
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--slate-900);
}

.section {
  margin-top: 2.5rem;
}

.section-intro {
  font-size: 0.95rem;
  color: var(--slate-500);
}

.hero-title {
  font-size: clamp(1.75rem, 1.3rem + 2vw, 2.6rem);
  font-weight: 700;
  color: var(--slate-900);
  line-height: 1.2;
}

.hero-subtitle {
  color: var(--slate-600);
  font-size: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--slate-300);
  color: var(--slate-700);
  background: #fff;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  border: 1px solid var(--slate-200);
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--slate-600);
  background: #fff;
}

.input {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--slate-200);
  padding: 12px 14px;
  font-size: 0.95rem;
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus {
  outline: none;
  border-color: #94a3b8;
  box-shadow: 0 0 0 3px rgba(148, 163, 184, 0.25);
}

.divider {
  height: 1px;
  background: var(--slate-200);
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 10px;
  padding: 4px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  background: #f8fafc;
  color: var(--slate-600);
}

.info-box {
  border: 1px solid var(--slate-200);
  background: #f8fafc;
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.note-box {
  border-left: 3px solid var(--accent);
  background: #ecfdf5;
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--slate-700);
}

.warn-box {
  border-left: 3px solid #f59e0b;
  background: #fffbeb;
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--slate-700);
}

.checklist {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.checklist li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.checklist li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 999px;
  background: var(--accent);
  flex-shrink: 0;
}