:root {
  color-scheme: light;
  --bg: #f8fafc;
  --card: #ffffff;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --header-bg: #4318d2;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1100px, 100%);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  background: var(--header-bg);
  color: #fff;
  border-bottom: 4px solid #2b0f86;
  box-shadow: 0 12px 32px rgba(67, 24, 210, 0.35);
  z-index: 10;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo img {
  height: 42px;
  display: block;
}

nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

nav a {
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
}

.nav-actions {
  display: flex;
  gap: 0.75rem;
}

nav a.btn {
  color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  padding: 0.6rem 1.6rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background 0.2s, color 0.2s, border 0.2s;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.btn.primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn.ghost {
  background: transparent;
  color: var(--card);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn.ghost.outline {
  color: var(--primary);
  border-color: rgba(67, 24, 210, 0.3);
  background: transparent;
}

.btn.ghost.outline:hover {
  background: rgba(67, 24, 210, 0.08);
  color: var(--primary);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.hero {
  padding: 5rem 0 3rem;
  background: linear-gradient(180deg, rgba(67, 24, 210, 0.08), transparent);
}

.hero .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0 0 1rem;
}

.subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.hero-card {
  background: var(--card);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.1);
}

.hero-card h2 {
  margin-top: 0;
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-card li {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.hero-card li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.hero-card p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.features {
  padding: 4rem 0;
}

.features h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.features .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.features article {
  background: var(--card);
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  min-height: 150px;
  display: flex;
  align-items: center;
}

.cta {
  padding: 4rem 0;
  text-align: center;
}

.cta p {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.legal {
  padding: 4rem 0;
}

.legal h1 {
  margin-bottom: 0.25rem;
}

.legal article {
  background: var(--card);
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--border);
  margin-top: 1.25rem;
}

.contact {
  padding: 4rem 0 5rem;
}

.contact-card {
  background: var(--card);
  border-radius: 1.5rem;
  padding: 2.5rem;
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--border);
  max-width: 720px;
  margin: 0 auto;
}

.contact-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.contact-card p {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.contact-form .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  padding: 0.9rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  resize: vertical;
}

.contact-form textarea {
  margin-top: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 24, 210, 0.15);
}

.contact-form button {
  margin-top: 1.5rem;
  width: 100%;
}

.legal ul {
  padding-left: 1.1rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.alert {
  padding: 0.9rem 1rem;
  border-radius: 0.75rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.alert-success {
  background: rgba(34, 197, 94, 0.12);
  color: #166534;
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.alert-warning {
  background: rgba(250, 204, 21, 0.15);
  color: #854d0e;
  border: 1px solid rgba(250, 204, 21, 0.5);
}

@media (max-width: 720px) {
  nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    row-gap: 0.5rem;
  }

  .site-header .container {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
  }

  .nav-actions {
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .nav-actions .btn {
    width: 100%;
  }
}