:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --primary: #1b5bf7;
  --primary-dark: #0f3fad;
  --text: #1f2430;
  --text-muted: #5f6678;
  --border: rgba(31, 36, 48, 0.08);
  --shadow: 0 18px 40px rgba(27, 91, 247, 0.08);
}

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

body {
  font-family: "Poppins", sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

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

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(244, 246, 251, 0.9);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--primary-dark);
}

.logo-badge {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: grid;
  place-items: center;
  color: var(--surface);
  font-weight: 600;
  font-size: 0.95rem;
}

.main-menu {
  flex: 1;
}

.main-menu ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 28px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.main-menu a:hover {
  color: var(--primary);
}

.auth-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.auth-link {
  font-weight: 500;
  color: var(--text-muted);
}

.auth-link:hover {
  color: var(--primary-dark);
}

.auth-btn {
  padding: 10px 20px;
  border-radius: 12px;
  background: var(--primary);
  color: var(--surface);
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 32px rgba(27, 91, 247, 0.16);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 72px 28px 96px;
  display: grid;
  gap: 32px;
}

.section-block {
  scroll-margin-top: 120px;
  min-height: 260px;
}

.panel {
  background: var(--surface);
  border-radius: 22px;
  padding: 48px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: grid;
  gap: 16px;
}

.panel h1 {
  font-size: clamp(2.2rem, 4vw, 3rem);
}

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

.feature-list {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  list-style: disc;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.link-btn {
  display: inline-flex;
  padding: 12px 24px;
  border-radius: 12px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-weight: 600;
  margin-top: 12px;
  transition: background 0.2s ease, color 0.2s ease;
}

.link-btn:hover {
  background: var(--primary);
  color: var(--surface);
}

.access-form {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.access-form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
  color: var(--text);
}

.access-form input,
.access-form textarea {
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 12px;
  font-size: 1rem;
  font-family: inherit;
}

.access-form button {
  justify-self: start;
  padding: 12px 24px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--surface);
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.access-form button:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 36px rgba(27, 91, 247, 0.18);
}

.placeholder-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.tile {
  background: var(--surface);
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 28px;
  box-shadow: 0 12px 32px rgba(18, 41, 82, 0.08);
  display: grid;
  gap: 10px;
}

.tile h2 {
  font-size: 1.1rem;
}

.tile p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

footer {
  padding: 36px 28px 48px;
  background: #10131a;
  color: rgba(255, 255, 255, 0.7);
}

footer .footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
}

@media (max-width: 800px) {
  .nav {
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .main-menu {
    width: 100%;
    order: 3;
  }

  .main-menu ul {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 18px;
  }

  .panel {
    padding: 36px;
  }
}
.muted {
  color: var(--text-muted);
  font-size: 0.9rem;
}