/* ── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #21262d;
  --border:    #30363d;
  --accent:    #f7931a;
  --accent2:   #627eea;
  --text:      #e6edf3;
  --text2:     #8b949e;
  --text3:     #6e7681;
  --success:   #3fb950;
  --danger:    #f85149;
  --radius:    10px;
  --font:      'Inter', 'Roboto', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ───────────────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ── Header ───────────────────────────────────────────────────── */
header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.3px;
}
.logo span { color: var(--accent); }
.logo:hover { text-decoration: none; opacity: 0.85; }

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), #ff6b00);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

nav { display: flex; align-items: center; gap: 8px; }
nav a {
  color: var(--text2);
  font-size: 13px;
  padding: 5px 10px;
  border-radius: 6px;
  transition: all .15s;
}
nav a:hover { color: var(--text); background: var(--bg3); text-decoration: none; }

/* ── Ticker / Price Widget ────────────────────────────────────── */
.ticker {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 8px 0;
  overflow: hidden;
}

.ticker-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.ticker-coin {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
}

.ticker-coin .name {
  color: var(--text2);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.ticker-coin .price { color: var(--text); font-weight: 600; font-size: 14px; }
.ticker-coin .change { font-size: 12px; font-weight: 600; }
.change.up   { color: var(--success); }
.change.down { color: var(--danger); }

.ticker-update {
  margin-left: auto;
  color: var(--text3);
  font-size: 11px;
}

/* ── Hero / Page title ────────────────────────────────────────── */
.page-hero {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}
.page-hero p { color: var(--text2); font-size: 14px; }

/* ── Filters & Controls ──────────────────────────────────────── */
.controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px 0;
}

.search-box {
  flex: 1;
  min-width: 200px;
  max-width: 320px;
  position: relative;
}
.search-box input {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  padding: 8px 12px 8px 34px;
  outline: none;
  transition: border-color .15s;
}
.search-box input:focus { border-color: var(--accent); }
.search-box .icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text3);
  font-size: 14px;
}

.tags-filter { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  padding: 4px 12px;
  transition: all .15s;
}
.tag-btn:hover, .tag-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(247,147,26,.08);
}

.sort-btn {
  margin-left: auto;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  padding: 7px 14px;
  transition: all .15s;
  white-space: nowrap;
}
.sort-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── News Grid ────────────────────────────────────────────────── */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
  padding-bottom: 32px;
}

.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .2s, transform .2s;
  cursor: pointer;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-category {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  padding: 3px 8px;
  border-radius: 4px;
}
.cat-security    { background: rgba(248,81,73,.15);  color: #f85149; }
.cat-macro       { background: rgba(98,126,234,.15); color: #627eea; }
.cat-tech        { background: rgba(63,185,80,.15);  color: #3fb950; }
.cat-regulation  { background: rgba(247,147,26,.15); color: #f7931a; }
.cat-institutional { background: rgba(163,113,247,.15); color: #a371f7; }
.cat-bitcoin     { background: rgba(247,147,26,.15); color: #f7931a; }
.cat-ethereum    { background: rgba(98,126,234,.15); color: #627eea; }
.cat-general     { background: rgba(139,148,158,.15);color: #8b949e; }

.card-date {
  color: var(--text3);
  font-size: 11px;
}

.card h2 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  margin: 0;
}
.card h2:hover { color: var(--accent); }

.card-preview {
  color: var(--text2);
  font-size: 13px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; }
.tag {
  background: var(--bg3);
  border-radius: 4px;
  color: var(--text3);
  font-size: 10px;
  padding: 2px 7px;
}

/* ── Pagination ───────────────────────────────────────────────── */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  padding: 24px 0 40px;
}
.page-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text2);
  cursor: pointer;
  font-size: 13px;
  min-width: 36px;
  padding: 6px 10px;
  text-align: center;
  transition: all .15s;
}
.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: #000; font-weight: 700; }
.page-btn:disabled { opacity: .4; cursor: default; }

/* ── Empty / Loading states ──────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text2);
  grid-column: 1/-1;
}
.empty-state .icon { font-size: 40px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin: 60px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Article page ─────────────────────────────────────────────── */
.article-wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 36px 20px 60px;
}

.article-back {
  color: var(--text2);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  transition: color .15s;
}
.article-back:hover { color: var(--accent); text-decoration: none; }

.article-header { margin-bottom: 28px; }

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.article-header h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.5px;
}

.article-body {
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
}
.article-body p { margin-bottom: 16px; }

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.article-tag {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text2);
  font-size: 12px;
  padding: 4px 10px;
}

/* ── Footer ───────────────────────────────────────────────────── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 24px 0;
  margin-top: auto;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-inner p { color: var(--text3); font-size: 12px; }
.footer-inner a { color: var(--text2); font-size: 12px; }
.footer-inner a:hover { color: var(--accent); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 640px) {
  .news-grid { grid-template-columns: 1fr; }
  .header-inner { height: 50px; }
  .logo { font-size: 15px; }
  nav a span { display: none; }
  .article-header h1 { font-size: 22px; }
}