/* Modern Dark Theme for Bike Companion Web */

:root {
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --card-border: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #10b981;
  --primary-hover: #059669;
  --danger: #ef4444;
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --success: #10b981;
  --badge-disconnected: #64748b;
  --badge-handshaking: #f59e0b;
  --badge-connected: #10b981;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.5;
  padding: 16px;
  min-height: 100vh;
}

.app-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--card-border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand .logo {
  font-size: 1.8rem;
}

.brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
}

.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--badge-disconnected);
}

.badge-disconnected .dot { background-color: var(--badge-disconnected); }
.badge-handshaking .dot { background-color: var(--badge-handshaking); animation: pulse 1s infinite alternate; }
.badge-connected .dot { background-color: var(--badge-connected); box-shadow: 0 0 8px var(--badge-connected); }

@keyframes pulse {
  from { opacity: 0.4; }
  to { opacity: 1; }
}

/* Banner */
.banner {
  padding: 14px 18px;
  border-radius: 8px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
}

.banner-warning {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning);
  color: #fef3c7;
}

.banner-danger {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--danger);
  color: #fee2e2;
}


.banner-icon {
  font-size: 1.2rem;
}

/* Ad Banners */
.ad-banner-container {
  width: 100%;
}

.ad-placeholder {
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border: 1px dashed #475569;
  border-radius: 10px;
  padding: 12px;
  text-align: center;
}

.ad-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #64748b;
  display: block;
  margin-bottom: 4px;
}

.ad-placeholder p {
  font-size: 0.85rem;
  color: #cbd5e1;
}

/* Cards & Layout */
.dashboard-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px;
}

.card h2 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--text-main);
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.metric-box {
  background-color: #0f172a;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
}

.metric-unit {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-align: center;
}

/* Controls */
.control-group {
  margin-bottom: 20px;

}

.control-group:last-child {
  margin-bottom: 0;
}

.control-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.control-sub {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.assist-btn-group {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.btn-assist {
  background-color: #0f172a;
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 10px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-assist:hover {
  border-color: var(--primary);
}

.btn-assist.active {
  background-color: var(--primary);
  color: #000;
  border-color: var(--primary);
}

.input-action-row {
  display: flex;
  gap: 10px;
}

input[type="number"] {
  background-color: #0f172a;
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 1rem;
  width: 100px;
}

/* Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #334155;
  transition: .3s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .3s;
}

input:checked + .slider {
  background-color: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(24px);
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}

/* Buttons */
.btn {
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background-color: var(--primary);
  color: #000;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #334155;
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: #475569;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: #000;
}

.btn-danger-outline {
  background-color: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  width: 100%;
}

.btn-danger-outline:hover {
  background-color: var(--danger);
  color: #fff;
}

.btn-success {
  background-color: var(--primary);
  color: #000;
}

.btn-success:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Connection Log */
.conn-log {
  margin-top: 12px;
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  background-color: #0f172a;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--card-border);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}

.modal-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  max-width: 450px;
  width: 100%;
  padding: 20px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.simulated-ad-box {
  background-color: #0f172a;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 16px;
  margin: 16px 0;
  text-align: center;
}

.ad-video-mock {
  padding: 12px;
}

.ad-icon {
  font-size: 2rem;
  margin-bottom: 8px;
  display: block;
}

.ad-video-mock .sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.ad-progress-bar {
  height: 6px;
  background-color: #334155;
  border-radius: 3px;
  overflow: hidden;
  margin: 12px 0 6px 0;
}

.ad-progress-fill {
  height: 100%;
  width: 0%;
  background-color: var(--primary);
  transition: width 0.2s linear;
}

.ad-timer {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Helper Utilities */
.row-between { display: flex; justify-content: space-between; }
.align-center { align-items: center; }
.mb-10 { margin-bottom: 10px; }
.mt-10 { margin-top: 10px; }
.btn-sm { padding: 4px 10px; font-size: 0.8rem; }
.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--primary);
}
.scan-tip {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.ad-tag {
  font-size: 0.75rem;
  color: var(--warning);
  background-color: var(--warning-bg);
  padding: 2px 8px;
  border-radius: 12px;
  margin-left: 6px;
  font-weight: 500;
}