:root {
  color-scheme: light;
  --bg-start: #e9fbf1;
  --bg-mid: #ddf7e7;
  --bg-end: #f4fff8;
  --card-bg: rgba(255, 255, 255, 0.78);
  --card-border: rgba(255, 255, 255, 0.6);
  --text: #0b0d12;
  --muted: #566273;
  --accent: #34c759;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, var(--bg-start), var(--bg-mid) 50%, var(--bg-end) 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(120deg, rgba(52, 199, 89, 0.12), transparent 40%),
    linear-gradient(300deg, rgba(16, 185, 129, 0.08), transparent 35%);
  opacity: 0.7;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(15, 23, 42, 0.04) 1px, transparent 1px);
  background-size: 18px 18px;
  opacity: 0.45;
  pointer-events: none;
}

main {
  position: relative;
  z-index: 1;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 56px 20px 40px;
}

.hero-card {
  width: min(560px, 100%);
  padding: 56px 48px 40px;
  border-radius: 32px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  text-align: center;
}

.logo {
  width: 120px;
  height: 120px;
  margin: 0 auto 24px;
  border-radius: 28px;
  display: grid;
  place-items: center;
  position: relative;
}

.logo img {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  object-fit: cover;
  display: block;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

p {
  font-size: 1.05rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 18px;
  justify-content: center;
  margin-top: 32px;
  font-size: 0.9rem;
}

.footer-links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.footer-links a:hover {
  text-decoration: underline;
}

.lang-switch {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 18px;
  font-size: 0.85rem;
}

.lang-switch a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.lang-switch a.active {
  color: var(--accent);
}

.page-shell {
  min-height: 100vh;
  padding: 56px 20px 60px;
}

.page-card {
  width: min(860px, 100%);
  margin: 0 auto;
  padding: 48px 48px 56px;
  border-radius: 28px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.page-card h1 {
  margin-bottom: 12px;
  text-align: left;
}

.page-card h2 {
  margin-top: 28px;
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.page-card p + p {
  margin-top: 12px;
}

.page-card ul {
  margin-top: 10px;
  padding-left: 20px;
  color: var(--muted);
}

.page-card li {
  margin-bottom: 8px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.back-link::before {
  content: "←";
  font-size: 1rem;
}

.meta {
  margin-top: 8px;
  font-size: 0.92rem;
  color: var(--muted);
}

.fine-print {
  margin-top: 16px;
  font-size: 0.92rem;
  color: var(--muted);
}

@media (max-width: 600px) {
  .hero-card {
    padding: 48px 28px 36px;
  }

  .page-card {
    padding: 36px 28px 44px;
  }

  .logo {
    width: 104px;
    height: 104px;
  }
}