/* ============================================================
   Crypto Research Platform — Design System
   Dark glassmorphism theme · Inter font · Chart.js ready
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-base:       #060a14;
  --bg-primary:    #0a0f1e;
  --bg-secondary:  #0d1426;
  --bg-surface:    rgba(255,255,255,0.04);
  --bg-surface-2:  rgba(255,255,255,0.07);
  --bg-hover:      rgba(255,255,255,0.06);

  /* Borders */
  --border:        rgba(255,255,255,0.07);
  --border-accent: rgba(0,212,255,0.25);
  --border-strong: rgba(255,255,255,0.12);

  /* Accent — Electric Cyan */
  --accent:        #00D4FF;
  --accent-dim:    rgba(0,212,255,0.15);
  --accent-glow:   rgba(0,212,255,0.3);
  --accent-dark:   #0099cc;

  /* Status */
  --success:       #00FF88;
  --success-dim:   rgba(0,255,136,0.12);
  --success-glow:  rgba(0,255,136,0.25);
  --warning:       #FFB800;
  --warning-dim:   rgba(255,184,0,0.12);
  --danger:        #FF3366;
  --danger-dim:    rgba(255,51,102,0.12);
  --danger-glow:   rgba(255,51,102,0.25);
  --neutral:       #8892A4;

  /* Text */
  --text:          #E2E8F4;
  --text-dim:      #6B7A8D;
  --text-bright:   #FFFFFF;
  --text-muted:    #4A5568;

  /* Radius */
  --radius-sm:     6px;
  --radius:        10px;
  --radius-lg:     16px;
  --radius-xl:     22px;

  /* Shadow */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4);
  --shadow:     0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.6);
  --shadow-accent: 0 0 30px rgba(0,212,255,0.12);

  /* Transitions */
  --transition: 0.18s ease;
  --transition-slow: 0.35s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(0,212,255,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(99,61,255,0.05) 0%, transparent 60%);
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar              { width: 6px; height: 6px; }
::-webkit-scrollbar-track        { background: var(--bg-primary); }
::-webkit-scrollbar-thumb        { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover  { background: var(--neutral); }

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4 { color: var(--text-bright); font-weight: 700; line-height: 1.3; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }
h4 { font-size: 0.95rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-dim); }

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #fff; }

code, .mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88em;
}

/* ── Layout ────────────────────────────────────────────────── */
.app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6,10,20,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-bright);
  white-space: nowrap;
}

.navbar-brand .logo-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent), #7B5CF6);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  transition: all var(--transition);
}
.nav-link:hover       { color: var(--text); background: var(--bg-hover); }
.nav-link.active      { color: var(--accent); background: var(--accent-dim); }
.nav-link .nav-icon   { font-size: 14px; }

.navbar-end {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

/* BTC Regime Badge */
.regime-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid;
}
.regime-badge.bullish  { color: var(--success); border-color: rgba(0,255,136,0.3); background: var(--success-dim); }
.regime-badge.neutral  { color: var(--warning); border-color: rgba(255,184,0,0.3); background: var(--warning-dim); }
.regime-badge.bearish  { color: var(--danger);  border-color: rgba(255,51,102,0.3); background: var(--danger-dim); }

/* ── Main Content ──────────────────────────────────────────── */
.main-content {
  flex: 1;
  padding: 32px 24px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.card:hover               { border-color: var(--border-strong); }
.card.card-accent         { border-color: var(--border-accent); box-shadow: var(--shadow-accent); }
.card.card-sm             { padding: 16px; }
.card-header              { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.card-title               { font-size: 0.95rem; font-weight: 600; color: var(--text-bright); }
.card-subtitle            { font-size: 0.78rem; color: var(--text-dim); margin-top: 2px; }

/* ── Top Setup Cards (Dashboard hero) ─────────────────────── */
.top-setups-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.setup-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-slow);
  cursor: pointer;
}
.setup-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.setup-card:hover { border-color: var(--border-accent); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.setup-card:hover::before { opacity: 1; }

.setup-card .medal       { font-size: 1.2rem; margin-bottom: 10px; }
.setup-card .coin-name   { font-size: 1.4rem; font-weight: 800; color: var(--text-bright); }
.setup-card .coin-full   { font-size: 0.78rem; color: var(--text-dim); margin-bottom: 16px; }
.setup-card .score-big   { font-size: 2.8rem; font-weight: 800; line-height: 1; color: var(--accent); }
.setup-card .score-label { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; }
.setup-card .score-bar-wrap { margin-top: 14px; }

/* ── Score Bar ─────────────────────────────────────────────── */
.score-bar-track {
  height: 4px;
  background: var(--bg-surface-2);
  border-radius: 2px;
  overflow: hidden;
}
.score-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.score-bar-fill.green  { background: linear-gradient(90deg, var(--success), #00CC6E); }
.score-bar-fill.yellow { background: linear-gradient(90deg, var(--warning), #E6A200); }
.score-bar-fill.red    { background: linear-gradient(90deg, var(--danger), #CC0044); }

/* ── Score Badge ───────────────────────────────────────────── */
.score-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}
.score-badge.green  { color: var(--success); background: var(--success-dim); }
.score-badge.yellow { color: var(--warning); background: var(--warning-dim); }
.score-badge.red    { color: var(--danger);  background: var(--danger-dim); }
.score-badge.dim    { color: var(--text-dim); background: var(--bg-surface-2); }

/* ── Rankings Table ────────────────────────────────────────── */
.rankings-table { width: 100%; border-collapse: collapse; }
.rankings-table th {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.rankings-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}
.rankings-table tr:last-child td { border-bottom: none; }
.rankings-table tr:hover td      { background: var(--bg-hover); }

.coin-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}
.coin-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.coin-cell .symbol   { font-weight: 700; font-size: 0.95rem; color: var(--text-bright); }
.coin-cell .fullname { font-size: 0.78rem; color: var(--text-dim); }

/* ── Status Indicators ─────────────────────────────────────── */
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.status-dot.ok       { background: var(--success); box-shadow: 0 0 6px var(--success-glow); }
.status-dot.warning  { background: var(--warning); }
.status-dot.error    { background: var(--danger);  box-shadow: 0 0 6px var(--danger-glow); }
.status-dot.pending  { background: var(--text-dim); }
.status-dot.pulse    { animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(1.4); }
}

/* ── Source Badge ──────────────────────────────────────────── */
.source-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.source-badge.binance   { color: #F0B90B; background: rgba(240,185,11,0.12); border: 1px solid rgba(240,185,11,0.25); }
.source-badge.coingecko { color: #8DC63F; background: rgba(141,198,63,0.12); border: 1px solid rgba(141,198,63,0.25); }

/* ── Dashboard Grid ────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 20px;
}

.dashboard-left  { display: flex; flex-direction: column; gap: 20px; }
.dashboard-right { display: flex; flex-direction: column; gap: 20px; }

/* ── Stat Row ──────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
}
.stat-card .stat-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-dim); margin-bottom: 6px; }
.stat-card .stat-value { font-size: 1.4rem; font-weight: 700; color: var(--text-bright); }
.stat-card .stat-change { font-size: 0.78rem; margin-top: 2px; }
.stat-card .stat-change.pos { color: var(--success); }
.stat-card .stat-change.neg { color: var(--danger); }

/* ── Awaiting Data State ───────────────────────────────────── */
.awaiting-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  gap: 12px;
}
.awaiting-state .aw-icon  { font-size: 2.5rem; opacity: 0.4; }
.awaiting-state .aw-title { font-weight: 600; color: var(--text); font-size: 1rem; }
.awaiting-state .aw-desc  { font-size: 0.82rem; color: var(--text-dim); max-width: 280px; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary   { background: var(--accent); color: #000; }
.btn-primary:hover   { background: #fff; color: #000; box-shadow: 0 0 20px var(--accent-glow); }
.btn-ghost     { background: var(--bg-surface-2); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover     { border-color: var(--accent); color: var(--accent); }
.btn-danger    { background: var(--danger-dim); color: var(--danger); border: 1px solid rgba(255,51,102,0.3); }
.btn-sm        { padding: 5px 12px; font-size: 12px; }

/* ── Form Controls ─────────────────────────────────────────── */
.form-group   { display: flex; flex-direction: column; gap: 6px; }
.form-label   { font-size: 0.8rem; font-weight: 600; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }
.form-input, .form-select {
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-input:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-input::placeholder { color: var(--text-muted); }

/* ── Login Page ────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-base);
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(0,212,255,0.06) 0%, transparent 70%),
    radial-gradient(ellipse at 50% 100%, rgba(99,61,255,0.06) 0%, transparent 70%);
}
.login-box {
  width: 100%;
  max-width: 400px;
  padding: 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
}
.login-box .login-logo { text-align: center; margin-bottom: 32px; }
.login-box .login-logo .icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--accent), #7B5CF6);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 12px;
}
.login-box h1 { font-size: 1.3rem; text-align: center; margin-bottom: 6px; }
.login-box .login-sub { font-size: 0.82rem; color: var(--text-dim); text-align: center; margin-bottom: 28px; }
.login-box .form-group { margin-bottom: 16px; }
.login-box .btn-primary { width: 100%; justify-content: center; margin-top: 8px; padding: 12px; font-size: 15px; }
.alert-error {
  background: var(--danger-dim);
  border: 1px solid rgba(255,51,102,0.3);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--danger);
  margin-bottom: 16px;
}

/* ── System Status Panel ───────────────────────────────────── */
.status-list { display: flex; flex-direction: column; gap: 10px; }
.status-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.status-item .si-label { flex: 1; font-size: 0.85rem; color: var(--text); }
.status-item .si-value { font-size: 0.78rem; color: var(--text-dim); font-family: 'JetBrains Mono', monospace; }

/* ── Signals Feed ──────────────────────────────────────────── */
.signals-feed { display: flex; flex-direction: column; gap: 8px; }
.signal-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color var(--transition);
  cursor: pointer;
}
.signal-item:hover    { border-color: var(--border-accent); }
.signal-item .sig-icon { font-size: 1.2rem; }
.signal-item .sig-body { flex: 1; }
.signal-item .sig-coin { font-weight: 700; font-size: 0.9rem; color: var(--text-bright); }
.signal-item .sig-desc { font-size: 0.75rem; color: var(--text-dim); }
.signal-item .sig-score { font-weight: 700; font-size: 0.9rem; }

/* ── Page Header ───────────────────────────────────────────── */
.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 1.6rem; margin-bottom: 4px; }
.page-header p  { color: var(--text-dim); font-size: 0.88rem; }

/* ── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--text-dim); margin-bottom: 20px; }
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .sep { opacity: 0.4; }

/* ── Tooltip ───────────────────────────────────────────────── */
[data-tooltip] { position: relative; cursor: help; }
[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #1a2035;
  color: var(--text);
  font-size: 0.75rem;
  white-space: nowrap;
  padding: 5px 10px;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
  pointer-events: none;
  z-index: 99;
}

/* ── Footer ────────────────────────────────────────────────── */
.app-footer {
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Utilities ─────────────────────────────────────────────── */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2        { gap: 8px; }
.gap-3        { gap: 12px; }
.gap-4        { gap: 16px; }
.mt-1         { margin-top: 4px; }
.mt-2         { margin-top: 8px; }
.mt-4         { margin-top: 16px; }
.mb-2         { margin-bottom: 8px; }
.mb-4         { margin-bottom: 16px; }
.text-right   { text-align: right; }
.text-center  { text-align: center; }
.text-dim     { color: var(--text-dim); }
.text-accent  { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger  { color: var(--danger); }
.text-sm      { font-size: 0.82rem; }
.text-xs      { font-size: 0.72rem; }
.font-mono    { font-family: 'JetBrains Mono', monospace; }
.font-bold    { font-weight: 700; }
.hidden       { display: none; }
.w-full       { width: 100%; }
.opacity-50   { opacity: 0.5; }

/* ── Divider ───────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .dashboard-grid      { grid-template-columns: 1fr; }
  .top-setups-grid     { grid-template-columns: repeat(3, 1fr); }
  .stat-grid           { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-content        { padding: 20px 16px; }
  .top-setups-grid     { grid-template-columns: 1fr; }
  .stat-grid           { grid-template-columns: repeat(2, 1fr); }
  .navbar              { padding: 0 16px; gap: 16px; }
  .navbar-nav .nav-link span { display: none; }
}