/* ═══════════════════════════════════════════════
   PURSUE PROJECT — styles.css
   ═══════════════════════════════════════════════ */

:root {
  --black: #050507;
  --dark: #0a0a0f;
  --panel: #0f0f18;
  --border: #1e1e2e;
  --orange: #f4650a;
  --orange-dim: rgba(244,101,10,0.15);
  --red: #cc2222;
  --amber: #e8a020;
  --white: #f0ede8;
  --grey: #7a7870;
  --grey-light: #b5b2aa;
  --mono: 'IBM Plex Mono', monospace;
  --serif: 'Libre Baskerville', serif;
  --display: 'DM Serif Display', serif;
  --headline: 'Bebas Neue', sans-serif;
}

/* ── RESET & BASE ─────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background-color: var(--black);
  color: var(--white);
  font-family: var(--serif);
  line-height: 1.8;
  overflow-x: hidden;
}

/* ── SCANLINES OVERLAY ────────────────────────── */
.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0,0,0,0.04) 2px,
    rgba(0,0,0,0.04) 4px
  );
  pointer-events: none;
  z-index: 9998;
}

/* ── HEADER ───────────────────────────────────── */
header {
  text-align: center;
  padding: 60px 20px 30px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
}

.subtitle {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 0.78rem;
  color: var(--grey);
  margin-bottom: 0.5rem;
}

.main-title {
  font-family: var(--display);
  font-size: clamp(3rem, 8vw, 5rem);
  color: var(--orange);
  margin: 10px 0;
  letter-spacing: -1px;
  line-height: 1.1;
}

.header-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.header-badge {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--border);
  color: var(--grey-light);
}

.header-badge.active {
  border-color: var(--orange);
  color: var(--orange);
}

.header-link {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--grey);
  text-decoration: none;
  letter-spacing: 0.15em;
  transition: color 0.2s;
}
.header-link:hover { color: var(--orange); }

/* ── STICKY NAV BAR ───────────────────────────── */
.nav-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(5,5,7,0.97);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 500;
}

/* ── SEARCH ───────────────────────────────────── */
.search-container { flex: 1; position: relative; min-width: 0; }

.search-bar {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 0;
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 9px 14px 9px 36px;
  transition: border-color 0.2s;
  outline: none;
}
.search-bar:focus { border-color: var(--orange); }
.search-bar::placeholder { color: var(--grey); }

.search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--grey);
  font-size: 0.85rem;
  pointer-events: none;
}

.search-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  max-height: 300px;
  overflow-y: auto;
  z-index: 600;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.search-dropdown.open { display: block; }

.sd-item {
  padding: 0.65rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.sd-item:last-child { border-bottom: none; }
.sd-item:hover { background: var(--orange-dim); }

.sd-meta {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--orange);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 2px;
}
.sd-title { font-size: 0.85rem; color: var(--white); }
.sd-none {
  padding: 0.9rem 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--grey);
}

/* ── LANG TOGGLE ──────────────────────────────── */
.lang-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--grey-light);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  padding: 8px 14px;
  cursor: pointer;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: all 0.2s;
  text-transform: uppercase;
}
.lang-toggle:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.flag-icon { width: 18px; height: 12px; object-fit: cover; border-radius: 1px; }

/* ── STATS BAR ────────────────────────────────── */
.stats-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.stats-bar::-webkit-scrollbar { display: none; }

.stat-item {
  flex: 1;
  min-width: 100px;
  text-align: center;
  padding: 1rem 0.5rem;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }

.stat-num {
  font-family: var(--headline);
  font-size: 1.8rem;
  color: var(--orange);
  line-height: 1;
  display: block;
}
.stat-label {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--grey);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: block;
  margin-top: 3px;
}

/* ── FILTERS ──────────────────────────────────── */
.filters-section {
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--dark);
}

.filters-label {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  color: var(--grey);
  text-transform: uppercase;
  display: block;
  margin-bottom: 10px;
}

.filters-container {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  white-space: nowrap;
  flex-wrap: nowrap;
}
.filters-container::-webkit-scrollbar { display: none; }

.filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--grey-light);
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 6px 14px;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
  flex-shrink: 0;
}
.filter-btn:hover { border-color: var(--grey-light); color: var(--white); }
.filter-btn.active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--black);
  font-weight: 600;
}

/* ── MAP SECTION ──────────────────────────────── */
.map-section {
  padding: 1.5rem 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.map-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--orange);
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: block;
}

.map-pins {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.map-pin {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--grey-light);
  border: 1px solid var(--border);
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.15s;
  background: rgba(244,101,10,0.03);
}

.map-pin::before { content: '◉ '; color: var(--orange); font-size: 0.5rem; }
.map-pin:hover { border-color: var(--orange); color: var(--white); }
.map-pin.active { border-color: var(--orange); background: var(--orange-dim); color: var(--white); }

/* ── ARTICLE LIST ─────────────────────────────── */
.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

.results-info {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--grey);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}

.no-results {
  text-align: center;
  padding: 4rem 2rem;
  font-family: var(--mono);
  color: var(--grey);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ── ARTICLE CARD ─────────────────────────────── */
article {
  margin-bottom: 70px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

article::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background 0.3s;
}

article:hover::before { background: var(--orange); }

.article-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.article-meta {
  font-family: var(--mono);
  color: var(--orange);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.article-tags {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.tag {
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 0.12em;
  color: var(--grey);
  border: 1px solid var(--border);
  padding: 2px 7px;
  text-transform: uppercase;
}

.article-title {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin: 0 0 18px 0;
  line-height: 1.15;
  color: var(--white);
}

.doc-image {
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  margin: 18px 0;
  border: 1px solid var(--border);
  filter: grayscale(80%) contrast(110%) brightness(0.8);
  transition: filter 0.4s, transform 0.3s;
  cursor: zoom-in;
}
.doc-image:hover {
  filter: grayscale(10%) contrast(105%) brightness(1);
  transform: scale(1.005);
}

.image-caption {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--grey);
  text-align: center;
  margin-top: -10px;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.article-body {
  color: var(--grey-light);
  font-size: 1rem;
  margin-bottom: 28px;
  line-height: 1.85;
}

.article-body p::first-letter {
  color: var(--orange);
  font-family: var(--display);
  font-size: 3rem;
  float: left;
  line-height: 1;
  padding-right: 8px;
  margin-top: 4px;
}

/* ── SOURCE BLOCK ─────────────────────────────── */
.source-block {
  background: rgba(244,101,10,0.04);
  border: 1px solid rgba(244,101,10,0.18);
  padding: 0.9rem 1.2rem;
  margin-bottom: 1.2rem;
}

.source-label {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.25em;
  color: var(--orange);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.5rem;
}

.source-url {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--grey-light);
  text-decoration: none;
  display: block;
  word-break: break-all;
  line-height: 1.6;
  transition: color 0.2s;
}
.source-url:hover { color: var(--orange); }
.source-url::before { content: '→ '; }

/* ── ACTIONS ROW ──────────────────────────────── */
.article-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-download {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--black);
  background: var(--white);
  text-decoration: none;
  padding: 10px 20px;
  font-weight: 700;
  text-transform: uppercase;
  transition: all 0.2s;
}
.btn-download:hover { background: var(--orange); color: var(--white); }

.btn-secondary {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--grey-light);
  background: transparent;
  border: 1px solid var(--border);
  text-decoration: none;
  padding: 10px 18px;
  text-transform: uppercase;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--grey-light); color: var(--white); }

/* ── LIGHTBOX ─────────────────────────────────── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.96);
  z-index: 9000;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border: 1px solid var(--border);
}
.lightbox-close {
  position: absolute;
  top: 1.5rem; right: 2rem;
  color: var(--grey);
  font-size: 1.5rem;
  cursor: pointer;
  background: none;
  border: none;
}
.lightbox-close:hover { color: var(--white); }

/* ── DETAIL MODAL ─────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 8000;
  overflow-y: auto;
  padding: 2rem 1rem;
}
.modal-overlay.open { display: block; }

.modal-box {
  max-width: 760px;
  margin: 0 auto;
  background: var(--dark);
  border: 1px solid var(--border);
  padding: 2.5rem;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1.2rem; right: 1.5rem;
  color: var(--grey);
  font-size: 1.2rem;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--mono);
}
.modal-close:hover { color: var(--white); }

.modal-meta {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--orange);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.modal-title {
  font-family: var(--display);
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.modal-body {
  color: var(--grey-light);
  line-height: 1.85;
  margin-bottom: 2rem;
  font-size: 0.98rem;
}

/* ── TIMELINE SIDEBAR ─────────────────────────── */
.timeline-bar {
  width: 100%;
  overflow-x: auto;
  padding: 1rem 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  gap: 0;
  scrollbar-width: none;
}
.timeline-bar::-webkit-scrollbar { display: none; }

.tl-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 90px;
  position: relative;
  cursor: pointer;
  padding: 4px 0;
}

.tl-item::after {
  content: '';
  position: absolute;
  top: 12px;
  left: 55%;
  width: 100%;
  height: 1px;
  background: var(--border);
}
.tl-item:last-child::after { display: none; }

.tl-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  margin-bottom: 5px;
  transition: background 0.2s, box-shadow 0.2s;
}
.tl-item:hover .tl-dot,
.tl-item.active .tl-dot {
  background: var(--orange);
  box-shadow: 0 0 8px rgba(244,101,10,0.5);
}

.tl-year {
  font-family: var(--headline);
  font-size: 0.85rem;
  color: var(--grey-light);
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.tl-item:hover .tl-year,
.tl-item.active .tl-year { color: var(--white); }

.tl-label {
  font-family: var(--mono);
  font-size: 0.45rem;
  color: var(--grey);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  margin-top: 2px;
  line-height: 1.3;
}

/* ── FADE IN ──────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── HIGHLIGHT ────────────────────────────────── */
mark {
  background: rgba(244,101,10,0.3);
  color: inherit;
  border-radius: 2px;
  padding: 0 2px;
}

/* ── SCROLL TOP ───────────────────────────────── */
#scrollTopBtn {
  display: none;
  position: fixed;
  bottom: 28px; right: 28px;
  z-index: 200;
  background: var(--black);
  color: var(--orange);
  border: 1px solid var(--orange);
  padding: 10px 16px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.9rem;
  transition: all 0.2s;
}
#scrollTopBtn:hover { background: var(--orange); color: var(--black); }

/* ── FOOTER ───────────────────────────────────── */
footer {
  text-align: center;
  padding: 50px 20px 40px;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--grey);
  letter-spacing: 0.1em;
  line-height: 2.2;
}

footer a {
  color: var(--orange);
  text-decoration: none;
  transition: opacity 0.2s;
}
footer a:hover { opacity: 0.7; }

/* ── RESPONSIVE ───────────────────────────────── */
@media (max-width: 640px) {
  .nav-bar { padding: 10px 14px; gap: 8px; }
  .container { padding: 30px 14px 50px; }
  .article-title { font-size: 1.5rem; }
  .filters-section { padding: 12px 14px; }
  .stats-bar { display: none; }
  .article-top { flex-direction: column; gap: 6px; }
}