/* ============================================================
   landing.css — Landing Page Styles
   Sherpa AI — stealth company intro surface
   ============================================================ */

/* ----- Page Shell ----- */
.landing-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #f8fafc;
  font-family: var(--font-family);
  position: relative;
  overflow-x: hidden;
}

/* Subtle gradient accent top */
.landing-page::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, #6366f1 50%, #8b5cf6 100%);
  z-index: 10;
}

/* ----- Header ----- */
.landing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-3xl);
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  position: sticky;
  top: 0;
  z-index: 9;
  flex-shrink: 0;
}

.landing-logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.landing-brand-name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.landing-header-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.landing-header-link {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.landing-header-link:hover {
  color: var(--color-text-primary);
}

/* ----- Hero Section ----- */
.landing-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-4xl) var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
  animation: heroFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Eyebrow label */
.landing-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-xl);
  animation: heroFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both;
}

.landing-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.landing-tagline {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 640px;
  animation: heroFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}

.landing-tagline em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-primary), #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin-top: var(--spacing-lg);
  animation: heroFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.2s both;
}

/* ----- Stats Row (social proof) ----- */
.landing-stats {
  display: flex;
  align-items: center;
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-3xl);
  padding-top: var(--spacing-3xl);
  border-top: 1px solid var(--color-border);
  width: 100%;
  max-width: 600px;
  justify-content: center;
  animation: heroFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
}

.landing-stat-item {
  text-align: center;
}

.landing-stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  line-height: 1;
}

.landing-stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  font-weight: 500;
  margin-top: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.landing-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* ----- Projects Section ----- */
.landing-projects {
  padding: var(--spacing-4xl) var(--spacing-3xl);
  max-width: 1040px;
  margin: 0 auto;
  width: 100%;
  animation: heroFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both;
}

.landing-section-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-xl);
}

/* ----- Projects Grid ----- */
.landing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

/* ----- Project Card ----- */
.landing-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--spacing-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.landing-card:first-child {
  border-color: var(--color-primary-100);
  box-shadow: 0 0 0 1px var(--color-primary-100), 0 4px 16px rgba(59, 130, 246, 0.08);
}

.landing-card:first-child::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #6366f1);
}

.landing-card:not(.landing-card-soon):hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-primary-100);
}

.landing-card-soon {
  background: #f8fafc;
  border-color: var(--color-border-light);
  cursor: default;
  opacity: 0.7;
}

/* Card icon area */
.landing-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--color-primary-50);
  flex-shrink: 0;
}

.landing-card-soon .landing-card-icon {
  background: var(--color-border-light);
}

.landing-card-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.landing-card-soon .landing-card-title {
  color: var(--color-text-tertiary);
}

.landing-card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex: 1;
}

.landing-card-soon .landing-card-desc {
  color: #cbd5e1;
}

.landing-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  margin-top: auto;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.landing-card-link:hover {
  color: var(--color-primary-hover);
  gap: var(--spacing-sm);
}

.landing-card-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  width: fit-content;
  margin-top: auto;
}

.landing-card-badge--active {
  background: var(--color-success-light);
  color: var(--color-success-dark);
}

.landing-card-badge--soon {
  background: var(--color-border-light);
  color: var(--color-text-tertiary);
}

/* ----- Footer ----- */
.landing-footer {
  padding: var(--spacing-xl) var(--spacing-3xl);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.landing-copyright {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  cursor: default;
  user-select: none;
}

.landing-contact {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.landing-footer-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-base);
}

.landing-footer-link {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.landing-footer-link:hover {
  color: var(--color-text-secondary);
}

/* ----- Responsive ----- */
@media (max-width: 900px) {
  .landing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .landing-header {
    padding: 0 var(--spacing-xl);
  }

  .landing-hero,
  .landing-projects {
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
  }

  .landing-stats {
    gap: var(--spacing-xl);
  }

  .landing-footer {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
    padding: var(--spacing-xl);
  }
}

/* ----- Mobile (landing page only) ----- */
@media (max-width: 768px) {
  /* Override dashboard min-width for landing page */
  #landing-page {
    min-width: 0;
  }

  #landing-page .landing-page {
    min-width: 0;
  }

  #landing-page .landing-header {
    padding: 0 var(--spacing-base);
    height: 56px;
  }

  #landing-page .landing-header-nav {
    gap: var(--spacing-base);
  }

  #landing-page .landing-header-link {
    font-size: var(--font-size-sm);
  }

  #landing-page .landing-hero {
    padding: var(--spacing-2xl) var(--spacing-base);
  }

  #landing-page .landing-tagline {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  #landing-page .landing-description {
    font-size: var(--font-size-md);
  }

  #landing-page .landing-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
  }

  #landing-page .landing-stat-divider {
    width: 40px;
    height: 1px;
  }

  #landing-page .landing-projects {
    padding: var(--spacing-2xl) var(--spacing-base);
  }

  #landing-page .landing-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-base);
    max-width: none;
  }

  #landing-page .landing-card {
    padding: var(--spacing-xl);
  }

  #landing-page .landing-footer {
    padding: var(--spacing-base);
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  #landing-page .landing-footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}