/* =============================================================================
   SleepGuardian — Dashboard & App Layout
   Navigation, dashboard grid, stat cards, chart containers, views
   ============================================================================= */

/* ── App Shell ─────────────────────────────────────────────────────────────── */
.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Top Navigation ────────────────────────────────────────────────────────── */
.top-nav {
    height: var(--nav-height);
    background: var(--bg-glass-strong);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 var(--space-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-right: auto;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.nav-brand svg {
    width: 28px;
    height: 28px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-right: var(--space-lg);
}

.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-sans);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--primary-light);
    background: var(--primary-glow);
}

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

.nav-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
}

.nav-username {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.nav-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
}

.nav-logout:hover {
    color: var(--poor);
    background: var(--poor-bg);
}

/* ── Main Content ──────────────────────────────────────────────────────────── */
.main-content {
    flex: 1;
    padding: var(--space-xl) var(--space-lg);
    max-width: var(--content-max);
    margin: 0 auto;
    width: 100%;
}

/* ── Page Header ───────────────────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.page-header h2 {
    font-size: 1.5rem;
}

/* ── Dashboard Grid ────────────────────────────────────────────────────────── */
.dash-grid {
    display: grid;
    gap: var(--space-lg);
}

/* Next Alarm — full width */
.dash-alarm {
    grid-column: 1 / -1;
}

/* Stats — 2x2 grid */
.dash-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

/* Weekly Chart — full width */
.dash-chart {
    grid-column: 1 / -1;
}

/* Snore Events — full width */
.dash-snores {
    grid-column: 1 / -1;
}

/* ── Next Alarm Card ───────────────────────────────────────────────────────── */
.alarm-hero {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    position: relative;
    overflow: hidden;
}

.alarm-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, var(--primary-glow) 0%, transparent 70%);
    opacity: 0.3;
    pointer-events: none;
}

.alarm-hero .alarm-time {
    font-family: var(--font-mono);
    font-size: 4rem;
    font-weight: 300;
    letter-spacing: 4px;
    color: var(--text-primary);
    position: relative;
}

.alarm-hero .alarm-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.alarm-hero .alarm-days {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: var(--space-md);
}

.alarm-active-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--good);
    margin-right: 8px;
    animation: glow-pulse 2s ease infinite;
    vertical-align: middle;
}

/* ── Chart Container ───────────────────────────────────────────────────────── */
.chart-container {
    position: relative;
    width: 100%;
    height: 250px;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ── Snore List ────────────────────────────────────────────────────────────── */
.snore-list {
    list-style: none;
}

.snore-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.snore-item:last-child { border-bottom: none; }

.snore-time {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.snore-duration {
    font-size: 0.85rem;
    color: var(--snore);
    font-weight: 500;
}

.snore-confidence {
    font-size: 0.75rem;
}

/* ── Alarm List ────────────────────────────────────────────────────────────── */
.alarm-list {
    display: grid;
    gap: var(--space-md);
}

.alarm-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
}

.alarm-card-time {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 400;
    color: var(--text-primary);
    min-width: 120px;
}

.alarm-card-info {
    flex: 1;
    min-width: 0;
}

.alarm-card-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.alarm-card-days {
    display: flex;
    gap: 4px;
}

.alarm-card-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.alarm-card.inactive {
    opacity: 0.5;
}

/* ── Device List ───────────────────────────────────────────────────────────── */
.device-list {
    display: grid;
    gap: var(--space-md);
}

.device-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
}

.device-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.device-info {
    flex: 1;
    min-width: 0;
}

.device-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.device-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ── History List ──────────────────────────────────────────────────────────── */
.history-list {
    display: grid;
    gap: var(--space-md);
}

.history-card {
    padding: var(--space-lg);
    cursor: pointer;
}

.history-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.history-date {
    font-weight: 600;
}

.history-duration {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--secondary);
}

.history-stats {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

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

.history-stat span {
    font-weight: 600;
    margin-left: 4px;
}

.history-expand {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-subtle);
    display: none;
}

.history-card.expanded .history-expand {
    display: block;
    animation: fadeIn 200ms ease;
}

.history-times {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

/* ── Quality Ring ──────────────────────────────────────────────────────────── */
.quality-ring-wrap {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-sm);
}

.quality-ring-wrap canvas {
    width: 80px;
    height: 80px;
}

.quality-ring-value {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
}

/* ── Load More ─────────────────────────────────────────────────────────────── */
.load-more-wrap {
    text-align: center;
    padding: var(--space-lg) 0;
}

/* ── Info Note ─────────────────────────────────────────────────────────────── */
.info-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: var(--space-md);
    background: var(--secondary-dim);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--secondary);
    margin-bottom: var(--space-lg);
}

.info-note .note-icon {
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .dash-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .top-nav {
        padding: 0 var(--space-md);
    }

    .nav-links {
        display: none;
    }

    .nav-username {
        display: none;
    }

    .main-content {
        padding: var(--space-md);
    }

    .alarm-hero .alarm-time {
        font-size: 3rem;
    }

    .alarm-card {
        flex-wrap: wrap;
    }

    .alarm-card-time {
        font-size: 1.5rem;
        min-width: auto;
    }

    .device-card {
        flex-wrap: wrap;
    }

    .page-header {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .chart-container {
        height: 200px;
    }
}

/* ── Mobile Bottom Nav ─────────────────────────────────────────────────────── */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-subtle);
    z-index: 1000;
    justify-content: space-around;
    align-items: center;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.65rem;
    font-family: var(--font-sans);
    cursor: pointer;
    padding: 6px 12px;
    transition: color var(--transition-fast);
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
}

.bottom-nav-item .bnav-icon {
    font-size: 1.2rem;
}

.bottom-nav-item.active {
    color: var(--primary-light);
}

@media (max-width: 768px) {
    .bottom-nav {
        display: flex;
    }

    .main-content {
        padding-bottom: 72px;
    }
}