/* ===== DARK MODE STYLES ===== */

/* Toggle button */
.dark-mode-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 0.3s, transform 0.2s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.dark-mode-toggle:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.5);
}

/* ===== DARK THEME VARIABLES ===== */
body.dark-mode {
  --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --card-bg: rgba(30, 30, 50, 0.85);
  --card-border: rgba(99, 102, 241, 0.3);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-heading: #c7d2fe;
  --nav-link: #94a3b8;
  --nav-link-hover: #818cf8;
  --input-bg: rgba(30, 30, 50, 0.9);
  --input-border: rgba(99, 102, 241, 0.4);
  --input-text: #e2e8f0;
  --btn-bg: #4f46e5;
  --btn-text: #fff;
}

/* ===== DARK BODY ===== */
body.dark-mode {
  background: var(--bg-gradient);
  color: var(--text-primary);
}

/* ===== DARK NAVIGATION ===== */
body.dark-mode nav ul li a {
  color: var(--nav-link);
}

body.dark-mode nav ul li a:hover,
body.dark-mode nav ul li a.active {
  background: rgba(99, 102, 241, 0.2);
  color: var(--nav-link-hover);
}

/* ===== DARK CARD / GLASSMORPHISM ===== */
body.dark-mode .card,
body.dark-mode .bg-white,
body.dark-mode main.bg-white {
  background: var(--card-bg) !important;
  border-color: var(--card-border) !important;
}

/* ===== TAILWIND OVERRIDES FOR DARK ===== */
body.dark-mode .bg-white {
  background: rgba(30, 30, 50, 0.85) !important;
}

body.dark-mode .bg-blue-50 {
  background: rgba(30, 41, 70, 0.8) !important;
}

body.dark-mode .text-gray-800,
body.dark-mode .text-gray-700,
body.dark-mode .text-gray-600 {
  color: var(--text-primary) !important;
}

body.dark-mode .text-gray-500 {
  color: var(--text-secondary) !important;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 {
  color: var(--text-heading);
}

body.dark-mode .text-blue-500,
body.dark-mode .text-blue-600 {
  color: #818cf8 !important;
}

/* ===== DARK BUTTONS ===== */
body.dark-mode .btn-instagram {
  background: linear-gradient(135deg, #be185d, #9d174d);
}

body.dark-mode .btn-lattes {
  background: linear-gradient(135deg, #4338ca, #3730a3);
}

/* ===== DARK FORMS (comments) ===== */
body.dark-mode .comment-form .comment-input,
body.dark-mode .comment-form .comment-textarea {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--input-text);
}

body.dark-mode .comment-form .comment-input::placeholder,
body.dark-mode .comment-form .comment-textarea::placeholder {
  color: var(--text-secondary);
}

body.dark-mode .comment-item {
  background: rgba(30, 41, 70, 0.7);
  border-color: rgba(99, 102, 241, 0.25);
}

body.dark-mode .comment-author {
  color: #a5b4fc;
}

body.dark-mode .comment-date {
  color: var(--text-secondary);
}

body.dark-mode .comment-text {
  color: var(--text-primary);
}

/* ===== DARK TIMELINE ===== */
body.dark-mode .timeline-line {
  background: rgba(99, 102, 241, 0.4);
}

body.dark-mode .timeline-dot {
  background: #6366f1;
  border-color: #1a1a2e;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.4);
}

body.dark-mode .timeline-card {
  background: rgba(30, 30, 50, 0.85);
  border-color: rgba(99, 102, 241, 0.3);
  color: var(--text-primary);
}

body.dark-mode .timeline-year {
  color: #818cf8;
}

/* ===== DARK LIBRARY / BLOG CARDS ===== */
body.dark-mode .resource-card,
body.dark-mode .blog-card {
  background: rgba(30, 41, 70, 0.8);
  border-color: rgba(99, 102, 241, 0.25);
}

body.dark-mode .resource-card:hover,
body.dark-mode .blog-card:hover {
  border-color: rgba(99, 102, 241, 0.6);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.2);
}

/* ===== DARK ARTICLE ===== */
body.dark-mode article {
  color: var(--text-primary);
}

body.dark-mode article p,
body.dark-mode article li {
  color: var(--text-secondary);
}

body.dark-mode article h2,
body.dark-mode article h3 {
  color: var(--text-heading);
}

body.dark-mode blockquote {
  border-left-color: #6366f1;
  background: rgba(30, 41, 70, 0.5);
  color: var(--text-secondary);
}

/* ===== SMOOTH TRANSITION ===== */
body,
body * {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}