/* OpusBike — ProActys Light Theme */
/* Primary: #4285F4, Dark: #364052, Navy: #051229, Ice: #E1E8F0, Silver: #A9B0B8 */

:root {
    --color-primary: #4285F4;
    --color-dark: #364052;
    --color-navy: #051229;
    --color-ice: #E1E8F0;
    --color-white: #FFFFFF;
    --color-silver: #A9B0B8;
    --color-bg: #F5F7FA;
    --color-card: #FFFFFF;
    --color-text: #1A1A2E;
    --color-text-secondary: #6B7280;
    --color-border: #E5E7EB;
    --color-success: #10B981;
    --color-warning: #F97316;
    --color-danger: #EF4444;
    --font-family: 'Segoe UI', Arial, Helvetica, sans-serif;
    --radius: 8px;
}

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

html, body {
    height: 100%;
    height: 100dvh;
    overflow: hidden;
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* Views */
.view {
    display: none;
    height: 100%;
    height: 100dvh;
    overflow: hidden;
}

.view.active {
    display: flex;
    flex-direction: column;
}

/* ===== Connect View ===== */
.connect-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.5rem;
    gap: 1rem;
    text-align: center;
    overflow: hidden;
}

.logo-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.app-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
}

.logo-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-navy);
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 0.8rem;
}

/* Status badge */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-badge.disconnected {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

.status-badge.connected {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.status-badge.demo {
    background: rgba(249, 115, 22, 0.1);
    color: var(--color-warning);
}

.status-badge.relay {
    background: rgba(66, 133, 244, 0.1);
    color: var(--color-primary);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Buttons */
.connect-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    max-width: 280px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background: #3b78e0;
}

.btn-secondary {
    background: var(--color-ice);
    color: var(--color-dark);
}

.btn-secondary:hover {
    background: #d1d9e6;
}

.btn-small {
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.15);
}

/* Info card */
.info-card {
    background: rgba(66, 133, 244, 0.05);
    border: 1px solid rgba(66, 133, 244, 0.15);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    max-width: 280px;
    width: 100%;
}

.info-card p {
    margin-bottom: 0.375rem;
}

.info-card .ws-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    color: var(--color-primary);
    font-weight: 500;
}

.hidden {
    display: none !important;
}

/* Bluefy hint for iOS */
.bluefy-hint {
    margin: 0.5rem 0;
    padding: 0.5rem;
    background: rgba(66, 133, 244, 0.05);
    border: 1px solid rgba(66, 133, 244, 0.15);
    border-radius: var(--radius);
    text-align: center;
}

.bluefy-hint p {
    margin-bottom: 0.375rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.bluefy-hint a:not(.btn) {
    color: var(--color-primary);
    text-decoration: underline;
}

.btn-bluefy {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.btn-bluefy svg {
    flex-shrink: 0;
}

.relay-fallback-text {
    font-size: 0.75rem;
    color: var(--color-silver);
    margin-top: 0.5rem;
    margin-bottom: 0.25rem;
}

/* Mode role label (Bridge / Viewer) */
.mode-role-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    min-height: 1em;
}

/* BLE Troubleshooting */
.troubleshoot-section {
    max-width: 280px;
    width: 100%;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.troubleshoot-section summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--color-primary);
    padding: 0.5rem 0;
    list-style: none;
}

.troubleshoot-section summary::before {
    content: '\25B6 ';
    font-size: 0.6rem;
    margin-right: 0.25rem;
}

.troubleshoot-section[open] summary::before {
    content: '\25BC ';
}

.troubleshoot-content {
    background: rgba(249, 115, 22, 0.05);
    border: 1px solid rgba(249, 115, 22, 0.15);
    border-radius: var(--radius);
    padding: 0.75rem;
    margin-top: 0.25rem;
}

.troubleshoot-content p {
    margin-bottom: 0.5rem;
    font-size: 0.78rem;
    line-height: 1.4;
}

.troubleshoot-content ol {
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
}

.troubleshoot-content li {
    margin-bottom: 0.375rem;
    font-size: 0.78rem;
    line-height: 1.4;
}

.troubleshoot-note {
    font-size: 0.72rem;
    color: var(--color-silver);
    font-style: italic;
    margin-bottom: 0;
}

/* QR Code section */
.qr-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem;
    background: var(--color-white);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.qr-label {
    color: var(--color-text-secondary);
    font-size: 0.7rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.qr-image {
    width: 140px;
    height: 140px;
    border-radius: 4px;
}

#qr-canvas {
    display: none;
}

.qr-url {
    color: var(--color-primary);
    font-size: 0.7rem;
    margin-top: 0.375rem;
    font-family: monospace;
    opacity: 0.7;
}

.brand-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    color: var(--color-silver);
    font-size: 0.65rem;
    opacity: 0.6;
    margin-top: auto;
    padding-top: 0.5rem;
}

.brand-footer img {
    height: 14px;
    width: auto;
    opacity: 0.5;
}

/* ===== Ride View (Dashboard) ===== */
.dashboard {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0.75rem;
    padding-bottom: 4rem;
    overflow: hidden;
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-left h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-navy);
}

.proactys-logo-sm {
    height: 16px;
    width: auto;
    opacity: 0.4;
}

.demo-badge {
    display: none;
    padding: 0.15rem 0.5rem;
    background: rgba(249, 115, 22, 0.1);
    color: var(--color-warning);
    border: 1px solid rgba(249, 115, 22, 0.2);
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.demo-badge.visible {
    display: inline-block;
}

/* Metrics grid — no scroll, fills viewport */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 2fr 1fr 1fr;
    gap: 0.5rem;
    flex: 1;
    min-height: 0;
}

.metric-card {
    background: var(--color-card);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    min-height: 0;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

/* Speed = hero card — full width, large value */
.metric-card.metric-speed {
    grid-column: 1 / -1;
    text-align: center;
    align-items: center;
}

.metric-card.metric-speed::before { background: var(--color-primary); }
.metric-card.metric-speed .metric-value {
    justify-content: center;
}
.metric-card.metric-speed .metric-value span:first-child {
    font-size: clamp(2.5rem, 10vw, 5rem);
    color: var(--color-primary);
}
.metric-card.metric-speed .metric-unit {
    font-size: 1rem;
    align-self: flex-end;
    margin-bottom: 0.25rem;
}

.metric-card.metric-cadence::before { background: #F97316; }
.metric-card.metric-humanpower::before { background: #8B5CF6; }
.metric-card.metric-motorpower::before { background: #06B6D4; }
.metric-card.metric-battery::before { background: #10B981; }
.metric-card.metric-time::before { background: #A78BFA; }
.metric-card.metric-mode::before { background: #EC4899; }

.battery-bar {
    width: 100%; height: 6px; background: var(--color-border);
    border-radius: 3px; margin-top: 6px; overflow: hidden;
}
.battery-fill {
    height: 100%; border-radius: 3px; transition: width 0.3s, background 0.3s;
    background: #10B981;
}

.metric-card.metric-mode {
    grid-column: 1 / -1;
}

.metric-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    margin-bottom: 0.125rem;
}

.metric-value {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.metric-value span:first-child {
    font-size: clamp(1.5rem, 5vw, 2.25rem);
    font-weight: 700;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    color: var(--color-text);
}

.metric-unit {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* Mode indicator */
.mode-indicator {
    display: flex;
    gap: 0.375rem;
    margin-top: 0.25rem;
    flex-wrap: wrap;
}

.mode-dot {
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.625rem;
    font-weight: 600;
    background: var(--color-ice);
    color: var(--color-text-secondary);
    transition: all 0.3s ease;
}

.mode-dot.active {
    color: var(--color-white);
}

.mode-dot[data-mode="OFF"].active { background: var(--color-silver); color: var(--color-white); }
.mode-dot[data-mode="ECO"].active { background: #10B981; }
.mode-dot[data-mode="TOUR"].active { background: #4285F4; }
.mode-dot[data-mode="EMTB"].active { background: #F97316; }
.mode-dot[data-mode="TURBO"].active { background: #EF4444; }

/* ===== Tab Bar ===== */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    padding: 0.375rem 0;
    padding-bottom: max(0.375rem, env(safe-area-inset-bottom));
    z-index: 100;
}

.tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.125rem;
    padding: 0.375rem;
    border: none;
    background: none;
    color: var(--color-text-secondary);
    font-family: var(--font-family);
    font-size: 0.625rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.2s;
}

.tab.active {
    color: var(--color-primary);
}

/* ===== Responsive ===== */

/* iPhone SE and small phones */
@media (max-height: 600px) {
    .connect-container {
        gap: 0.5rem;
        padding: 0.75rem 1rem;
    }
    .app-logo { width: 36px; height: 36px; }
    .logo-header h1 { font-size: 1.25rem; }
    .qr-image { width: 100px; height: 100px; }
    .btn { padding: 0.6rem 1rem; font-size: 0.8rem; }
}

/* Dashboard: tab bar offset */
@media (max-height: 700px) {
    .dashboard {
        padding-bottom: 3.5rem;
    }
    .metrics-grid {
        gap: 0.375rem;
    }
    .metric-card {
        padding: 0.5rem;
    }
}

/* Desktop */
@media (min-width: 768px) {
    .metrics-grid {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: 1.5fr 1fr;
        max-width: 800px;
        margin: 0 auto;
    }

    .metric-card.metric-speed {
        grid-column: 1 / -1;
    }

    .metric-card.metric-mode {
        grid-column: auto;
    }

    .connect-container {
        gap: 1.5rem;
    }

    .app-logo {
        width: 64px;
        height: 64px;
    }
}