/* ============================================
   DARK MODE THEME
   ============================================ */

[data-theme="dark"] {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #25253d;
  --bg-card: #1e1e32;
  --bg-overlay: rgba(15, 15, 26, 0.95);

  --text-primary: #f8f9fa;
  --text-secondary: #adb5bd;
  --text-muted: #6c757d;
  --text-inverse: #212529;

  --border-color: rgba(255, 255, 255, 0.1);
  --border-color-light: rgba(255, 255, 255, 0.05);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px rgba(239, 55, 36, 0.4);
}

/* Dark mode body styles */
[data-theme="dark"] body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .vg-page {
  background-color: var(--bg-secondary);
}

[data-theme="dark"] .page-home {
  background-color: var(--bg-primary) !important;
}

[data-theme="dark"] .page-about {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

[data-theme="dark"] .navbar {
  background-color: var(--bg-overlay);
  backdrop-filter: blur(10px);
}

[data-theme="dark"] .navbar .nav-link {
  color: var(--text-primary);
}

[data-theme="dark"] .card,
[data-theme="dark"] .card-service {
  background-color: var(--bg-card);
  border-color: var(--border-color);
}

[data-theme="dark"] .form-control {
  background-color: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

[data-theme="dark"] .form-control::placeholder {
  color: var(--text-muted);
}

[data-theme="dark"] .text-muted {
  color: var(--text-secondary) !important;
}

[data-theme="dark"] h1, [data-theme="dark"] h2,
[data-theme="dark"] h3, [data-theme="dark"] h4,
[data-theme="dark"] h5, [data-theme="dark"] h6 {
  color: var(--text-primary);
}

[data-theme="dark"] p {
  color: var(--text-secondary);
}

[data-theme="dark"] .timeline li .details {
  background-color: var(--bg-card);
  border-color: var(--border-color);
}

/* Timeline dot border - prevents white border on dark background */
  [data-theme="dark"] .timeline > li::before {
    border-color: var(--bg-secondary);
  }

  /* Company/Institution heading text - makes h5 visible on dark cards */
  [data-theme="dark"] .timeline .details h5 {
    color: var(--text-primary);
  }

  /* Paragraph text in timeline cards - improves readability */
  [data-theme="dark"] .timeline .details p {
    color: var(--text-secondary);
  }

  /* Expandable card fade gradient - matches dark card background */
  [data-theme="dark"] .timeline .details.expandable::after {
    background: linear-gradient(transparent, var(--bg-card));
  }


[data-theme="dark"] .progress {
  background-color: var(--bg-tertiary);
}

[data-theme="dark"] .skill-badge {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

[data-theme="dark"] .contact-card-flip .contact-card-front,
[data-theme="dark"] .contact-card-flip .contact-card-back {
  background: var(--bg-card);
  border-color: var(--border-color);
}

[data-theme="dark"] .vg-footer {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

[data-theme="dark"] .img-place {
  background-color: var(--bg-tertiary);
}

[data-theme="dark"] .badge {
  background-color: var(--bg-tertiary);
}

[data-theme="dark"] .btn-theme-outline {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

[data-theme="dark"] .divider {
  background-color: var(--border-color);
}

/* ============================================
   THEME TOGGLE BUTTON
   ============================================ */

.theme-toggle {
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: var(--z-fixed);
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  overflow: hidden;
}

.theme-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  font-size: 1.4rem;
  transition: all var(--transition-smooth);
}

.theme-toggle .icon-sun {
  color: #ffd700;
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-toggle .icon-moon {
  color: #6c63ff;
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

[data-theme="dark"] .theme-toggle .icon-sun {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

[data-theme="dark"] .theme-toggle .icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Animated background for toggle */
.theme-toggle::before {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  background: conic-gradient(
    from 0deg,
    transparent,
    var(--color-primary),
    transparent 30%
  );
  animation: toggleSpin 3s linear infinite paused;
}

.theme-toggle:hover::before {
  animation-play-state: running;
}

@keyframes toggleSpin {
  100% {
    transform: rotate(360deg);
  }
}