:root {
  --bg: #0a0e1a;
  --bg2: #111827;
  --bg3: #1f2937;
  --accent: #00ff88;
  --accent2: #00b8ff;
  --warn: #fbbf24;
  --danger: #ef4444;
  --text: #f1f5f9;
  --text2: #94a3b8;
  --border: #1e293b;
  --radius: 8px;
  --font: 'Inter', system-ui, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
}

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

header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

header .header-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex: 1;
}

header .header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.logo span { color: var(--text2); font-weight: 400; }

nav { display: flex; gap: 0.25rem; align-items: center; }

nav a {
  color: var(--text2);
  font-size: 0.875rem;
  transition: all 0.2s;
  padding: 6px 14px;
  border-radius: 6px;
  font-weight: 500;
}
nav a:hover { color: var(--text); text-decoration: none; background: var(--bg3); }
nav a.active { color: var(--text); text-decoration: none; background: var(--bg3); }

.mode-toggle {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px;
  display: flex;
  gap: 2px;
}

.mode-toggle button {
  border: none;
  border-radius: 16px;
  padding: 4px 12px;
  font-size: 0.75rem;
  cursor: pointer;
  background: transparent;
  color: var(--text2);
  transition: all 0.2s;
}

.mode-toggle button.active {
  background: var(--accent);
  color: #000;
  font-weight: 600;
}

main { max-width: 1200px; margin: 0 auto; padding: 2rem; }

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.page-sub { color: var(--text2); font-size: 0.875rem; margin-bottom: 2rem; }

/* Cards */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.signal-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.2s, transform 0.15s;
  cursor: pointer;
}

.signal-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.signal-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.ticker {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
}

.score-badge {
  background: var(--bg3);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.875rem;
  font-weight: 700;
}

.score-badge.high { color: var(--accent); border: 1px solid var(--accent); }
.score-badge.med { color: var(--warn); border: 1px solid var(--warn); }
.score-badge.low { color: var(--text2); border: 1px solid var(--border); }

.signal-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: var(--text2);
}

.signal-reason {
  font-size: 0.875rem;
  color: var(--text2);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.targets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.target-item {
  background: var(--bg3);
  border-radius: 6px;
  padding: 8px;
  text-align: center;
}

.target-label { font-size: 0.65rem; color: var(--text2); text-transform: uppercase; margin-bottom: 2px; }
.target-val { font-size: 0.875rem; font-weight: 600; color: var(--accent); }

/* Score bar */
.score-bar { margin: 1rem 0; }
.score-bar-label { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text2); margin-bottom: 4px; }
.score-bar-track { background: var(--bg3); border-radius: 4px; height: 6px; overflow: hidden; }
.score-bar-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--accent2), var(--accent)); transition: width 0.5s; }

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.stat-label { font-size: 0.75rem; color: var(--text2); margin-bottom: 4px; }
.stat-val { font-size: 1.5rem; font-weight: 700; color: var(--accent); }

/* Advanced mode extras */
.breakdown-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; margin-top: 1rem; }
.breakdown-table th { text-align: left; color: var(--text2); padding: 4px 8px; border-bottom: 1px solid var(--border); }
.breakdown-table td { padding: 4px 8px; }
.breakdown-table tr:nth-child(even) td { background: var(--bg3); }

/* Filters */
.filters {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.filter-btn {
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text2);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 600;
}

.filter-btn:hover:not(.active) { border-color: var(--text2); }

/* Disclaimer */
.disclaimer {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  color: var(--text2);
  margin-bottom: 1.5rem;
}

.disclaimer strong { color: var(--warn); }

/* Loading */
.loading {
  text-align: center;
  padding: 4rem;
  color: var(--text2);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Empty state */
.empty {
  text-align: center;
  padding: 4rem;
  color: var(--text2);
  font-size: 0.875rem;
}

/* Signal detail page */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (max-width: 768px) {
  .detail-grid { grid-template-columns: 1fr; }
  .signal-grid { grid-template-columns: 1fr; }
  main { padding: 1rem; }
  header { padding: 1rem; }
}

/* Tag */
.tag {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--bg3);
  color: var(--text2);
  border: 1px solid var(--border);
}

.tag.green { color: var(--accent); border-color: var(--accent); }

/* Timeframe tag */
.timeframe-tag {
  font-size: 0.75rem;
  color: var(--accent2);
}

/* User dropdown */
.user-menu { position: relative; display: flex; align-items: center; }

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s;
  font-family: var(--font);
  letter-spacing: 0.02em;
  user-select: none;
}
.user-avatar:hover { border-color: var(--accent); filter: brightness(0.9); }

.user-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  min-width: 240px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-6px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 999;
}
.user-dropdown.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.dropdown-user-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.dropdown-avatar-lg {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dropdown-user-info { overflow: hidden; }
.dropdown-user-email {
  font-size: 0.8rem;
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dropdown-user-role { font-size: 0.7rem; color: var(--text2); margin-top: 1px; }

.dropdown-section {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.dropdown-section-label {
  font-size: 0.65rem;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  font-weight: 600;
}
.currency-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
}
.currency-btn {
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text2);
  border-radius: 7px;
  padding: 6px 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
  font-weight: 500;
  text-align: center;
}
.currency-btn:hover { border-color: var(--accent); color: var(--text); }
.currency-btn.active { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 700; }

.dropdown-signout {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  background: none;
  border: none;
  color: var(--danger);
  font-size: 0.85rem;
  padding: 12px 16px;
  cursor: pointer;
  text-align: left;
  font-family: var(--font);
  font-weight: 500;
  transition: background 0.15s;
}
.dropdown-signout:hover { background: rgba(239,68,68,0.08); }

/* Currencies placeholder page */
.coming-soon {
  text-align: center;
  padding: 6rem 2rem;
  color: var(--text2);
}
.coming-soon h2 { font-size: 1.5rem; color: var(--text); margin-bottom: 0.75rem; }