/* components.css – Buttons, cards, nav, forms, badges, modal */

/* ═══════════════ BUTTONS ═══════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  line-height: 1;
}
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
}
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}
.btn-secondary:hover {
  background: var(--color-accent-dim);
}
.btn-ghost {
  color: var(--color-text-muted);
}
.btn-ghost:hover { color: var(--color-text); }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }

/* ═══════════════ HEADER / NAV ═══════════════ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-sticky);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo – image version */
.logo {
  display: flex;
  align-items: center;
}
.logo img {
  height: 52px;
  width: auto;
  filter: var(--logo-filter);
}
@media (min-width: 768px) {
  .logo img { height: 58px; }
}

/* Header right: nav + theme toggle */
.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Theme toggle button */
.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-accent-dim);
}
/* Dark mode: show sun (to switch to light). Light mode: show moon (to switch to dark). */
.theme-toggle .icon-sun { display: block; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav-desktop { display: none; }
@media (min-width: 768px) {
  .nav-desktop { display: flex; gap: var(--space-4); align-items: center; }
}
@media (min-width: 1024px) {
  .nav-desktop { gap: var(--space-6); }
}
.nav-desktop a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  position: relative;
}
.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--color-accent);
}
.nav-desktop a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

/* Mobile menu toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}
@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

/* Mobile nav overlay */
.nav-mobile {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}
.nav-mobile.open { opacity: 1; pointer-events: auto; }
.nav-mobile a {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.nav-mobile a:hover,
.nav-mobile a.active { color: var(--color-accent); }
.nav-mobile-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: var(--text-3xl);
  color: var(--color-text-muted);
  background: none; border: none;
  cursor: pointer;
}

/* ═══════════════ FOOTER ═══════════════ */
.site-footer {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-12);
}
.footer-grid {
  display: grid;
  gap: var(--space-8);
}
@media (min-width: 480px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }
}
.footer-brand .logo img { height: 56px; filter: var(--logo-filter); }
.footer-brand p { color: var(--color-text-muted); font-size: var(--text-sm); margin-top: var(--space-3); }
.footer-heading {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.footer-links { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-accent); }
.footer-newsletter-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.footer-newsletter-form input {
  flex: 1;
  min-width: 0;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  font-size: var(--text-sm);
}
.footer-newsletter-form input::placeholder { color: var(--color-text-dim); }
.footer-newsletter-form input:focus {
  outline: none;
  border-color: var(--color-accent);
}
.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  text-align: center;
}
@media (min-width: 768px) {
  .footer-bottom { justify-content: space-between; text-align: left; }
}
.social-links { display: flex; gap: var(--space-4); }
.social-links a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.social-links a:hover { color: var(--color-accent); }
.footer-admin-link {
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  opacity: 0.5;
  transition: opacity var(--transition-fast), color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.footer-admin-link:hover {
  opacity: 1;
  color: var(--color-text-muted);
}

/* ═══════════════ CARDS ═══════════════ */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--color-surface);
}
.card-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.card:hover .card-img-wrap img { transform: scale(1.05); }
.card-body { padding: var(--space-5); }
.card-body h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-body h3 a { transition: color var(--transition-fast); }
.card-body h3 a:hover { color: var(--color-accent); }
.card-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-3);
}
.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-dim);
}

/* Featured (large) card variant */
.card-featured {
  grid-column: 1 / -1;
}
@media (min-width: 768px) {
  .card-featured { display: grid; grid-template-columns: 1.2fr 1fr; }
  .card-featured .card-img-wrap { aspect-ratio: auto; min-height: 320px; }
  .card-featured .card-body { display: flex; flex-direction: column; justify-content: center; padding: var(--space-8); }
  .card-featured .card-body h3 { font-size: var(--text-2xl); -webkit-line-clamp: 3; }
  .card-featured .card-excerpt { -webkit-line-clamp: 4; }
}

/* Video card */
.card-video .card-img-wrap::after {
  content: '▶';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  color: #fff;
  background: rgba(0,0,0,.35);
  transition: background var(--transition-fast);
}
.card-video:hover .card-img-wrap::after { background: rgba(0,0,0,.2); }

/* ═══════════════ BADGES ═══════════════ */
.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text-muted);
}
.badge-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

/* ═══════════════ FORMS ═══════════════ */
.form-group { margin-bottom: var(--space-5); }
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-dim); }
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { appearance: none; cursor: pointer; }
.form-message {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
}
.form-message-success { background: rgba(52,211,153,.12); color: var(--color-success); }
.form-message-error   { background: rgba(248,113,113,.12); color: var(--color-error); }

/* ═══════════════ VIDEO EMBED ═══════════════ */
.video-embed {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ═══════════════ SECTION HEADERS ═══════════════ */
.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}
.section-header h2 { margin: 0; }
.section-header p { color: var(--color-text-muted); font-size: var(--text-sm); margin: 0; }

/* ═══════════════ TOAST / NOTIFICATION ═══════════════ */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.toast {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  box-shadow: var(--shadow-lg);
  animation: toastIn var(--transition-base) ease;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════ EMPTY / ERROR STATE ═══════════════ */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-4);
  color: var(--color-text-muted);
}
.empty-state h3 { margin-bottom: var(--space-3); color: var(--color-text); }

/* ═══════════════ PAGINATION ═══════════════ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-10);
}
.pagination button {
  min-width: 40px; height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}
.pagination button:hover { background: var(--color-surface); color: var(--color-text); }
.pagination button.active {
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 700;
}
.pagination button:disabled { opacity: .4; cursor: default; }

/* ═══════════════ FILTER BAR ═══════════════ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}
.filter-bar .form-input {
  width: 100%;
}
@media (min-width: 768px) {
  .filter-bar .form-input { max-width: 320px; }
}
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.filter-chip {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-chip:hover,
.filter-chip.active {
  border-color: var(--color-accent);
  background: var(--color-accent-dim);
  color: var(--color-accent);
}