/* =====================================================
   UFO-ARKIV — style.css
   Dark Space theme med CSS-variabler, Grid og Flexbox
   ===================================================== */

/* === CSS-variabler (Design Tokens) === */
:root {
  --bg-base:        #0a0a0f;
  --bg-surface:     #111118;
  --bg-card:        #16161f;
  --bg-card-hover:  #1d1d2a;
  --bg-embed:       #0d0d14;

  --accent:         #5b8dee;
  --accent-dim:     #3a5fa8;
  --accent-glow:    rgba(91, 141, 238, 0.18);
  --article-accent: #e8a84c;
  --article-dim:    rgba(232, 168, 76, 0.15);

  --text-primary:   #e8e8f0;
  --text-secondary: #8888a8;
  --text-muted:     #55556a;

  --border:         rgba(255, 255, 255, 0.07);
  --border-hover:   rgba(91, 141, 238, 0.4);

  --radius-card:    12px;
  --radius-item:    8px;
  --radius-embed:   6px;

  --shadow-card:    0 4px 24px rgba(0, 0, 0, 0.5);
  --shadow-hover:   0 8px 40px rgba(91, 141, 238, 0.15);

  --transition:     0.22s ease;
  --font:           -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                    Helvetica, Arial, sans-serif;
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* === HEADER === */
.site-header {
  background: linear-gradient(
    180deg,
    rgba(10, 10, 20, 0.98) 0%,
    rgba(17, 17, 30, 0.95) 100%
  );
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}

.logo:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.logo-icon {
  font-size: 1.6rem;
  color: var(--accent);
  line-height: 1;
  filter: drop-shadow(0 0 8px var(--accent));
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.logo-accent {
  color: var(--accent);
}

.header-tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  border-left: 1px solid var(--border);
  padding-left: 2rem;
}

/* === MAIN CONTENT === */
#main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 2rem 4rem;
}

/* === VIEW SYSTEM === */
.view {
  display: none;
  animation: fadeInView 0.3s ease;
}

.view.active {
  display: block;
}

@keyframes fadeInView {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* === DASHBOARD INTRO === */
.dashboard-intro {
  margin-bottom: 2.5rem;
}

.dashboard-intro h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
}

.intro-sub {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* === CATEGORY CARD GRID === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

/* === CATEGORY CARD === */
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  cursor: pointer;
  transition:
    background var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  overflow: hidden;
}

/* Subtle top glow line */
.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent), var(--accent-dim));
  opacity: 0;
  transition: opacity var(--transition);
}

.category-card:hover,
.category-card:focus-visible {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.category-card:hover::before,
.category-card:focus-visible::before {
  opacity: 1;
}

.category-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.card-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
}

.card-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: 100px;
  text-transform: uppercase;
}

.badge-video {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(91, 141, 238, 0.3);
}

.badge-article {
  background: var(--article-dim);
  color: var(--article-accent);
  border: 1px solid rgba(232, 168, 76, 0.3);
}

.card-arrow {
  font-size: 0.8rem;
  color: var(--text-muted);
  align-self: flex-end;
  transition: color var(--transition), transform var(--transition);
}

.category-card:hover .card-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

/* === CATEGORY VIEW === */
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-family: var(--font);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  margin-bottom: 2rem;
}

.btn-back:hover {
  color: var(--text-primary);
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

.back-arrow {
  font-size: 1rem;
  line-height: 1;
}

.category-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.category-header h2 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.category-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* === ITEMS CONTAINER === */
.items-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* === SECTION HEADINGS within items === */
.items-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  margin-top: 0.5rem;
}

/* === VIDEO EMBED WRAPPER === */
.video-wrapper {
  background: var(--bg-embed);
  border: 1px solid var(--border);
  border-radius: var(--radius-item);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.video-wrapper:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}

.video-title-bar {
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.video-icon {
  color: var(--accent);
  font-size: 0.9rem;
}

.video-embed-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
}

.video-embed-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* === ARTICLE LINK === */
.article-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-item);
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.article-link:hover {
  background: var(--bg-card-hover);
  border-color: rgba(232, 168, 76, 0.4);
  transform: translateX(4px);
}

.article-link-icon {
  font-size: 1.1rem;
  color: var(--article-accent);
  flex-shrink: 0;
}

.article-link-title {
  flex: 1;
  line-height: 1.4;
}

.article-link-ext {
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* === FOOTER === */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1.25rem 2rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .site-header { padding: 1.25rem 1.25rem; }
  .header-tagline { display: none; }
  #main-content { padding: 2rem 1.25rem 3rem; }
  .card-grid { grid-template-columns: 1fr; }
  .dashboard-intro h1 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .logo-text { font-size: 1.2rem; }
  .category-header h2 { font-size: 1.3rem; }
}