/* =============================================
   UltraCalcMock — Home / Landing Page Styles
   ============================================= */

/* ═══════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 44vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--space-16) 0 var(--space-12);
}

/* Animated gradient background */
.hero-bg-animation {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 20%,
    var(--bg-tertiary) 40%,
    rgba(99, 102, 241, 0.08) 60%,
    rgba(139, 92, 246, 0.06) 80%,
    var(--bg-primary) 100%
  );
  background-size: 300% 300%;
  animation: gradientShift 12s ease infinite;
  z-index: 0;
}

/* Floating particles overlay */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.hero-particle {
  position: absolute;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  opacity: 0.08;
  animation: float 6s ease-in-out infinite;
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

/* Top badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--accent-primary-muted);
  border: 1px solid rgba(99, 102, 241, 0.2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--accent-primary);
  letter-spacing: 0.03em;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-success);
  animation: pulse 2s ease-in-out infinite;
}

/* Title */
.hero-title {
  font-size: clamp(2rem, 6vw, var(--fs-5xl));
  font-weight: var(--fw-extrabold);
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 700px;
}

/* Subtitle */
.hero-subtitle {
  font-size: clamp(var(--fs-sm), 2.5vw, var(--fs-lg));
  color: var(--text-secondary);
  max-width: 500px;
  line-height: var(--lh-relaxed);
}

/* Stats bar */
.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-4);
  padding: var(--space-4) var(--space-8);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.hero-stat-value {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-extrabold);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  font-weight: var(--fw-medium);
}

.hero-stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border-subtle);
}

/* ═══════════════════════════════════════════════
   MOCKS SECTION
   ═══════════════════════════════════════════════ */
.mocks-section {
  padding: var(--space-12) 0 var(--space-20);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.section-title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-1);
}

.section-subtitle {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}

/* ═══════════════════════════════════════════════
   MOCK CARDS GRID
   ═══════════════════════════════════════════════ */
.mock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

/* ── Individual Mock Card ── */
.mock-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  opacity: 0;
  animation: cardEntrance 0.5s ease forwards;
}

.mock-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: var(--border-color-hover);
  box-shadow:
    var(--shadow-lg),
    0 0 0 1px var(--border-color-hover),
    0 0 30px rgba(99, 102, 241, 0.08);
}

.mock-card:active {
  transform: translateY(-2px) scale(1.005);
}

/* Glow effect on hover */
.mock-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition-base);
  background: radial-gradient(
    ellipse at 50% 0%,
    rgba(99, 102, 241, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 1;
}

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

/* Coming Soon Card Styling */
.mock-card.coming-soon {
  cursor: not-allowed;
  opacity: 0.75;
}

.mock-card.coming-soon:hover {
  transform: none !important;
  border-color: var(--border-subtle) !important;
  box-shadow: none !important;
}

.mock-card.coming-soon:active {
  transform: none !important;
}

.mock-card.coming-soon::after {
  display: none; /* Disable hover glow */
}

.mock-card.coming-soon .mock-card-thumb img {
  filter: grayscale(100%) brightness(0.6) contrast(0.9);
}

.mock-card.coming-soon .badge-coming-soon {
  background: #f59e0b !important; /* solid orange/yellow */
  color: #000 !important; /* high contrast text */
  border: 1px solid rgba(245, 158, 11, 0.4) !important;
  font-weight: 800;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
}

/* Thumbnail wrapper — 16:9 aspect ratio */
.mock-card-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.mock-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.mock-card:hover .mock-card-thumb img {
  transform: scale(1.05);
}

/* Status badge overlay on thumbnail */
.mock-card-status {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 2;
}

/* Questions count overlay on thumbnail */
.mock-card-count {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  z-index: 2;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  backdrop-filter: blur(4px);
}

/* Card body */
.mock-card-body {
  padding: var(--space-4);
  position: relative;
  z-index: 2;
}

.mock-card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  line-height: var(--lh-tight);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mock-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.mock-card-meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  font-weight: var(--fw-medium);
}

.mock-card-date {
  font-size: var(--fs-xs);
  color: var(--color-warning);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-weight: var(--fw-medium);
}

/* Card entrance animation */
@keyframes cardEntrance {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Stagger card animations */
.mock-card:nth-child(1) { animation-delay: 0.05s; }
.mock-card:nth-child(2) { animation-delay: 0.1s; }
.mock-card:nth-child(3) { animation-delay: 0.15s; }
.mock-card:nth-child(4) { animation-delay: 0.2s; }
.mock-card:nth-child(5) { animation-delay: 0.25s; }
.mock-card:nth-child(6) { animation-delay: 0.3s; }
.mock-card:nth-child(7) { animation-delay: 0.35s; }
.mock-card:nth-child(8) { animation-delay: 0.4s; }
.mock-card:nth-child(9) { animation-delay: 0.45s; }
.mock-card:nth-child(10) { animation-delay: 0.5s; }
.mock-card:nth-child(11) { animation-delay: 0.55s; }
.mock-card:nth-child(12) { animation-delay: 0.6s; }

/* ═══════════════════════════════════════════════
   SKELETON LOADING CARDS
   ═══════════════════════════════════════════════ */
.skeleton-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
}

.skeleton-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    var(--bg-elevated) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 400% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}

.skeleton-body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.skeleton-line {
  height: 14px;
  border-radius: var(--radius-sm);
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    var(--bg-elevated) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 400% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}

.skeleton-line-short {
  width: 60%;
}

.skeleton-line-tiny {
  width: 35%;
  height: 10px;
}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.site-footer {
  padding: var(--space-8) 0;
  background: var(--bg-secondary);
  position: relative;
  margin-top: auto;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-primary) 50%, transparent 100%);
  opacity: 0.5;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-4);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.footer-tagline {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-top: var(--space-2);
}

.footer-copy {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .mock-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    min-height: 36vh;
    padding: var(--space-12) 0 var(--space-10);
  }

  .hero-stats {
    gap: var(--space-4);
    padding: var(--space-3) var(--space-6);
  }
}

@media (max-width: 768px) {
  .mock-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .hero {
    min-height: auto;
    padding: var(--space-10) 0 var(--space-8);
  }

  .hero-title {
    font-size: var(--fs-3xl);
  }

  .hero-stats {
    flex-direction: row;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-5);
  }

  .hero-stat-divider {
    height: 24px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .footer-brand {
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
  }

  .hero-stat-value {
    font-size: var(--fs-lg);
  }

  .hero-badge {
    font-size: 0.7rem;
  }

  .tabs {
    width: 100%;
  }

  .tab {
    flex: 1;
    text-align: center;
    padding: var(--space-2) var(--space-3);
    font-size: var(--fs-xs);
  }
}