/* ============================================================
   Landing Page — GR Reporting Portal
   Clean, professional light theme with subtle GR branding.
   ============================================================ */

.landing-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
}

/* ── Header ──────────────────────────────────────────────── */
.landing-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-7);
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  max-width: 100%;
}

.landing-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.landing-logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
}

.landing-logo span {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.3px;
}

/* ── Hero Section ────────────────────────────────────────── */
.landing-hero {
  padding: var(--space-9) var(--space-7) var(--space-8);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  animation: fadeIn 0.5s ease;
}

.landing-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin-bottom: var(--space-4);
}

.landing-hero p {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto;
}

/* ── Modules Section ─────────────────────────────────────── */
.modules-section {
  padding: 0 var(--space-7) var(--space-9);
  flex-grow: 1;
}

.section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: var(--space-7);
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-5);
  max-width: 960px;
  margin: 0 auto;
}

/* ── Module Cards ────────────────────────────────────────── */
.module-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: var(--space-6);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--transition-fast), box-shadow var(--transition-normal), transform var(--transition-normal);
  box-shadow: var(--shadow-sm);
  animation: slideUp 0.4s ease backwards;
}

.module-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Subtle brand accent on hover — thin purple line at top */
.module-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: var(--space-6);
  right: var(--space-6);
  height: 2px;
  background: var(--color-brand);
  border-radius: 0 0 2px 2px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.module-card:hover::after {
  opacity: 1;
}

.module-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.module-desc {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.65;
  flex-grow: 1;
  margin-bottom: var(--space-5);
}

/* Badge */
.badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--color-surface-subtle);
  color: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  padding: 2px 10px;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* Card footer */
.card-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-brand);
  font-weight: 600;
  font-size: 0.8rem;
}

.card-footer svg {
  transition: transform var(--transition-fast);
}

.module-card:hover .card-footer svg {
  transform: translateX(3px);
}

/* ── Footer ──────────────────────────────────────────────── */
.landing-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) var(--space-7);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* ── Staggered Entrance ──────────────────────────────────── */
.module-card:nth-child(1) { animation-delay: 0.05s; }
.module-card:nth-child(2) { animation-delay: 0.10s; }
.module-card:nth-child(3) { animation-delay: 0.15s; }
.module-card:nth-child(4) { animation-delay: 0.20s; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .landing-hero {
    padding: var(--space-8) var(--space-4) var(--space-6);
  }

  .landing-hero h1 {
    font-size: 1.85rem;
  }

  .modules-section {
    padding: 0 var(--space-4) var(--space-7);
  }

  .modules-grid {
    grid-template-columns: 1fr;
  }

  .landing-header {
    padding: var(--space-3) var(--space-4);
  }
}