:root {
  --bg-1: #eef4ff;
  --bg-2: #f8fbff;
  --card: rgba(255, 255, 255, 0.9);
  --text: #1f2937;
  --muted: #6b7280;
  --border: #dbe4f0;

  --blue: #2563eb;
  --blue-hover: #1d4ed8;

  --green: #16a34a;
  --green-hover: #15803d;

  --orange: #ea580c;
  --orange-hover: #c2410c;

  --shadow: 0 18px 45px rgba(15, 23, 42, 0.10);
  --shadow-button: 0 10px 24px rgba(37, 99, 235, 0.18);

  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-1: #0f172a;
    --bg-2: #111827;
    --card: rgba(30, 41, 59, 0.92);
    --text: #f3f4f6;
    --muted: #cbd5e1;
    --border: #334155;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.35);
    --shadow-button: 0 10px 24px rgba(0, 0, 0, 0.24);
  }
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 35%),
    radial-gradient(circle at bottom right, rgba(22, 163, 74, 0.10), transparent 30%),
    linear-gradient(180deg, var(--bg-1), var(--bg-2));
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 520px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  padding: 30px 24px 22px;
}

.hero {
  text-align: center;
  margin-bottom: 24px;
}

.hero-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 14px;
  display: grid;
  place-items: center;
  font-size: 2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(22, 163, 74, 0.10));
  border: 1px solid var(--border);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.nav-button {
  display: block;
  text-decoration: none;
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 18px 18px;
  box-shadow: var(--shadow-button);
  transition: transform 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease;
}

.nav-button:hover,
.nav-button:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.03);
  outline: none;
}

.nav-button:active {
  transform: translateY(0);
}

.nav-button-blue {
  background: linear-gradient(135deg, var(--blue), var(--blue-hover));
}

.nav-button-green {
  background: linear-gradient(135deg, var(--green), var(--green-hover));
}

.nav-button-orange {
  background: linear-gradient(135deg, var(--orange), var(--orange-hover));
}

.nav-title {
  display: block;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.2;
}

.nav-subtitle {
  display: block;
  margin-top: 4px;
  font-size: 0.92rem;
  opacity: 0.92;
}

.footer {
  margin-top: 20px;
  text-align: center;
}

.footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .page {
    padding: 16px;
  }

  .card {
    padding: 22px 16px 18px;
    border-radius: 18px;
  }

  .hero-icon {
    width: 64px;
    height: 64px;
    font-size: 1.8rem;
  }

  .nav-button {
    padding: 16px 15px;
    border-radius: 16px;
  }

  .nav-title {
    font-size: 1rem;
  }

  .nav-subtitle {
    font-size: 0.88rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-button {
    transition: none;
  }
}