:root {
  --bg:           #000000;
  --bg2:          #1d1d1d;
  --bg3:          #1d1d1d67;
  --border:       rgba(255,255,255,0.3);
  --border-hover: rgba(255,255,255,0.67);
  --red:          #dc2626;
  --red-dim:      rgba(232,40,42,0.15);
  --white:        #ffffff;
  --white-btn:    #ffffff;
  --muted:        rgba(255,255,255,0.67);
  --font:         "Inter", sans-serif;
  --font-heading: "Space Grotesk", sans-serif;
  --mono:         'SF Mono', 'Fira Code', Consolas, monospace;
}

/* --- Light mode --- */
html.light {
  --bg:           #FFFFFF;
  --bg2:          #FAFAFA;
  --bg3:          #fafafa67;
  --border:       rgba(0,0,0,0.12);
  --border-hover: rgba(0,0,0,0.35);
  --red-dim:      rgba(220,38,38,0.10);
  --white:        #1A1A1A;
  --white-btn:    #ffffff;
  --muted:        #525252;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* --- Nav --- */
nav {
  font-family: var(--font-heading);
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg3);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--white);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.logo-img {
  height: 32px;
  width: auto;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  opacity: 1;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  transition: color .15s;
}

.nav-links a:hover {
  color: var(--white-btn);
}

.theme-toggle {
  background: none;
  border: 0;
  color: var(--muted);
  width: 34px;
  height: 34px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--white);
  background: var(--border);
  opacity: 0.67;
}

.nav-links .btn-launch {
  background: var(--red);
  color: var(--white-btn);
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
}

.nav-links .btn-launch:hover {
  opacity: 0.9;
}

/* --- Page wrapper --- */
.page {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

/* --- Hero --- */
.hero {
  padding: 64px 0 36px;
  border-bottom: 0.5px solid var(--border);
}

.hero-eyebrow {  /* currently not in use */
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 8px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 72px;
  font-weight: 600;
  letter-spacing: -1.5px;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
}

.hero h1 span {
  color: var(--red);
}

.hero-sub {
  font-size: 16px;
  color: var(--muted);
  max-width: 580px;
  line-height: 1.7;
}

/* --- Filter bar --- */
.filters {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 28px 0 24px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--border-hover);
  color: var(--white);
}

.filter-btn.active {
  background: var(--red-dim);
  border-color: var(--red);
  color: var(--red);
}

.filter-spacer {
  flex: 1;
}

.search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 0 12px;
  height: 34px;
  transition: border-color 0.15s;
}

.search-wrap:focus-within {
  border-color: var(--border-hover);
}

.search-wrap svg {
  color: var(--muted);
  flex-shrink: 0;
}

.search-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--white);
  font-size: 14px;
  font-family: var(--font);
  width: 180px;
}

.search-input::placeholder {
  color: var(--muted);
}

/* --- Timeline / cards --- */
.timeline {
  padding-bottom: 80px;
}

.timeline-group {
  margin-bottom: 52px;
}

.timeline-month {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(700px, 100%), 1fr));
  gap: 16px;
}

.mention-card {
  background: var(--bg2);
  border-radius: 12px;
  padding: 20px 22px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.1s;
  cursor: pointer;
}

.mention-card:hover {
  transform: translateY(-1.67px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.source-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--red);
}

.lang-tag {
  margin-left: auto;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--white);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-snippet {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.card-source {
  font-size: 14px;
  color: var(--muted);
}

.card-arrow {
  color: var(--muted);
  font-size: 14px;
}

.mention-card:hover .card-arrow {
  color: var(--white);
}

/* --- Empty state --- */
.empty-state {
  text-align: center;
  padding: 72px 0;
  color: var(--muted);
  display: none;
}

.empty-state svg {
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state p {
  font-size: 14px;
}

/* --- Footer --- */
.site-footer {
  background: var(--bg2);
  border-top: 0.5px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 28px 0;
}

.footer-copy {
  font-size: 12px;
  color: var(--muted);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 20px;
}

.social-link {
  color: var(--muted);
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: color 0.15s;
}

.social-link:hover {
  color: var(--white);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero h1 {
    font-size: 52px;
    letter-spacing: -1px;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .nav-links a:not(.btn-launch) {
    display: none;
  }
  .hero {
    padding: 48px 0 36px;
  }
  .hero h1 {
    font-size: 40px;
    font-weight: 600;
  }
  .filters {
    gap: 8px;
  }
  .filter-spacer {
    display: none;
  }
  .search-wrap {
    width: 100%;
  }
  .search-input {
    width: 100%;
  }
}