/* css/landing.css */
:root {
  --bg: #eef3f8;
  --text: #0f172a;
  --muted: #5b6b82;
  --accent: #165dff;
  --accent-2: #0ea5e9;
  --accent-soft: #eaf1ff;
  --shadow-soft: 0 12px 36px rgba(15, 23, 42, .06);
  --shadow-hover: 0 24px 48px rgba(22, 93, 255, .15);
  --radius-lg: 24px;
  --font: 'Inter', sans-serif;
  --font-head: 'Space Grotesk', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: 
    radial-gradient(circle at 10% 20%, rgba(22, 93, 255, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.12) 0%, transparent 40%),
    linear-gradient(135deg, #f8fbff 0%, var(--bg) 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.landing-header {
  padding: 24px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.8);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  text-decoration: none;
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 22px;
  color: var(--text);
  letter-spacing: -0.04em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-sub {
  font-size: 13px;
  color: var(--muted);
}

/* Hero Section */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero h1 {
  font-family: var(--font-head);
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.05em;
  margin: 0 0 16px;
  max-width: 800px;
  line-height: 1.1;
  color: var(--text);
}

.hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 600px;
  margin: 0 0 48px;
  line-height: 1.6;
}

/* Grid Menu */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  width: 100%;
  max-width: 1100px;
  padding: 0 24px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 1);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-decoration: none;
  color: var(--text);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(22,93,255,0.05), rgba(14,165,233,0.02));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(22, 93, 255, 0.2);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--accent-soft), #fff);
  color: var(--accent);
  box-shadow: 0 8px 16px rgba(22, 93, 255, 0.1);
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  position: relative;
}

.feature-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
  position: relative;
}

/* Footer */
.footer {
  text-align: center;
  padding: 32px 24px;
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid rgba(0,0,0,0.05);
}

@media (max-width: 768px) {
  .hero h1 { font-size: 36px; }
  .features-grid { grid-template-columns: 1fr; }
}