/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-main: #0a0a0f;
  --bg-card: #13132a;
  --bg-card2: #0f0f1e;
  --border: #2a2a44;
  --border-subtle: #1e1e34;
  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --text-muted: #55558a;
  --accent: #7c6cf5;
  --accent-light: #a78bfa;
  --green: #2ecc71;
  --red: #e74c3c;
  --yellow: #f39c12;
}

body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

/* Import font */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&display=swap');

/* GRAIN OVERLAY */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

/* ===== HEADER ===== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.logo span { color: var(--accent); }

.badge-live {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #0f2a1a;
  border: 1px solid #1a5c30;
  color: var(--green);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 100px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 1.5s ease infinite;
}

.dot.disconnected { background: var(--red); animation: none; }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

/* ===== PRICE CARD ===== */
.price-card {
  background: linear-gradient(135deg, #13132a 0%, #1a1a35 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 16px;
}

.pair {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.price {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.price-change {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.price-change.up { color: var(--green); }
.price-change.down { color: var(--red); }

/* ===== SIGNAL GRID ===== */
.signal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.sig-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 10px;
  text-align: center;
}

.sig-label {
  font-size: 9px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.sig-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.sig-value.buy { color: var(--green); }
.sig-value.sell { color: var(--red); }
.sig-value.neutral { color: var(--yellow); }

/* ===== AI CARD ===== */
.ai-card {
  background: linear-gradient(135deg, #1a1030 0%, #120d28 100%);
  border: 1px solid #3a2a60;
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 16px;
}

.ai-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.ai-icon {
  width: 30px;
  height: 30px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.ai-title {
  font-size: 13px;
  font-weight: 600;
  color: #c0b0ff;
  flex: 1;
}

.refresh-btn {
  background: transparent;
  border: 1px solid #3a2a60;
  color: var(--accent-light);
  font-size: 11px;
  font-family: inherit;
  padding: 5px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.refresh-btn:hover { background: #2a1a50; }
.refresh-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.ai-signal {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  transition: color 0.3s;
}

.ai-signal.buy-signal { color: var(--green); }
.ai-signal.sell-signal { color: var(--red); }
.ai-signal.wait-signal { color: var(--yellow); }

.ai-reason {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.ai-conf {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.conf-label { font-size: 10px; color: var(--text-muted); }

.conf-bar {
  flex: 1;
  height: 4px;
  background: #2a2a44;
  border-radius: 100px;
  overflow: hidden;
}

.conf-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 100px;
  transition: width 1s ease;
}

.conf-val {
  font-size: 11px;
  color: var(--accent-light);
  font-weight: 600;
  min-width: 30px;
  text-align: right;
}

/* ===== INDICATORS GRID ===== */
.indicators-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.ind-card {
  background: var(--bg-card2);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 12px;
}

.ind-name {
  font-size: 9px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.ind-value {
  font-size: 16px;
  font-weight: 600;
  color: #d0d0ee;
}

.ind-sub {
  font-size: 9px;
  color: var(--text-muted);
  margin-top: 3px;
}

/* ===== ALERT STRIP ===== */
.alert-strip {
  background: #0f1e0f;
  border: 1px solid #1c4a20;
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.alert-icon { font-size: 18px; flex-shrink: 0; }

.alert-text {
  font-size: 12px;
  color: #7fdc8a;
  line-height: 1.5;
  flex: 1;
}

.notif-btn {
  background: transparent;
  border: 1px solid #2a6a34;
  color: var(--green);
  font-size: 11px;
  font-family: inherit;
  padding: 5px 10px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.notif-btn:hover { background: #1a4a22; }

/* ===== HISTORY ===== */
.history-section { margin-top: 4px; }

.section-title {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.history-list { display: flex; flex-direction: column; gap: 8px; }

.history-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.history-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.history-dot.buy { background: var(--green); }
.history-dot.sell { background: var(--red); }
.history-dot.wait { background: var(--yellow); }

.history-signal {
  font-size: 13px;
  font-weight: 600;
  flex: 1;
}

.history-time {
  font-size: 10px;
  color: var(--text-muted);
}

.history-empty {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 20px;
}

/* ===== LOADING STATE ===== */
.skeleton {
  background: linear-gradient(90deg, #1a1a2e 25%, #222240 50%, #1a1a2e 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
  display: inline-block;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}