/* Pulse Dashboard Styles */

/* ========================================
   Layout
   ======================================== */

.app-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

/* ========================================
   Hero
   ======================================== */

.hero-section {
    text-align: center;
    padding: 30px 0 20px;
}

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

.hero-icon {
    color: var(--accent-primary, #10B981);
}

.pulse-icon {
    display: block;
}

.hero-title {
    font-size: var(--font-size-2xl, 28px);
    font-weight: 700;
    color: var(--text-primary);
}

.hero-description {
    font-size: var(--font-size-md, 16px);
    color: var(--text-secondary);
}

/* ========================================
   Stats Grid
   ======================================== */

.pulse-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.pulse-stat-card {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--border-radius-md, 8px);
    padding: 16px;
    text-align: center;
    transition: transform var(--transition-normal, 0.2s);
}

.pulse-stat-card:hover {
    transform: translateY(-1px);
}

.pulse-stat-value {
    display: block;
    font-size: var(--font-size-xl, 24px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.pulse-stat-label {
    display: block;
    font-size: var(--font-size-sm, 13px);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pulse-stat-card--up .pulse-stat-value {
    color: #10B981;
}

.pulse-stat-card--down .pulse-stat-value {
    color: #EF4444;
}

.pulse-stat-card--alerts .pulse-stat-value {
    color: #F59E0B;
}

/* ========================================
   Connection Status
   ======================================== */

.pulse-connection {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    margin-bottom: 24px;
    font-size: var(--font-size-sm, 13px);
    color: var(--text-secondary);
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--border-radius-md, 8px);
}

.pulse-connection__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #F59E0B;
    flex-shrink: 0;
}

.pulse-connection--ok .pulse-connection__dot {
    background: #10B981;
}

.pulse-connection--error .pulse-connection__dot {
    background: #EF4444;
}

/* ========================================
   Section Headers
   ======================================== */

.pulse-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.pulse-section-header h2 {
    font-size: var(--font-size-lg, 18px);
    font-weight: 600;
    color: var(--text-primary);
}

/* ========================================
   Monitor List
   ======================================== */

.pulse-monitors {
    margin-bottom: 32px;
}

.pulse-monitor-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pulse-monitor-card {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--border-radius-md, 8px);
    padding: 16px 20px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 16px;
    align-items: center;
    transition: box-shadow var(--transition-normal, 0.2s);
}

.pulse-monitor-card:hover {
    box-shadow: 0 2px 8px var(--card-shadow, rgba(0,0,0,0.08));
}

/* Status indicator */
.pulse-monitor-card__status {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.pulse-monitor-card__status--up {
    background: #10B981;
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.4);
}

.pulse-monitor-card__status--down {
    background: #EF4444;
    box-shadow: 0 0 6px rgba(239, 68, 68, 0.4);
    animation: pulse-blink 1.5s ease-in-out infinite;
}

.pulse-monitor-card__status--pending {
    background: #F59E0B;
}

.pulse-monitor-card__status--paused {
    background: #9CA3AF;
}

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

/* Monitor info */
.pulse-monitor-card__info {
    min-width: 0;
}

.pulse-monitor-card__name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pulse-monitor-card__url {
    font-size: var(--font-size-sm, 13px);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pulse-monitor-card__tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.pulse-tag {
    font-size: 11px;
    padding: 1px 8px;
    border-radius: 10px;
    background: var(--bg-secondary, #f3f4f6);
    color: var(--text-secondary);
}

/* Monitor metrics */
.pulse-monitor-card__metrics {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    flex-shrink: 0;
}

.pulse-monitor-card__uptime {
    font-size: var(--font-size-lg, 18px);
    font-weight: 700;
}

.pulse-monitor-card__uptime--good {
    color: #10B981;
}

.pulse-monitor-card__uptime--warn {
    color: #F59E0B;
}

.pulse-monitor-card__uptime--bad {
    color: #EF4444;
}

.pulse-monitor-card__latency {
    font-size: var(--font-size-sm, 13px);
    color: var(--text-secondary);
}

/* ========================================
   Alerts List
   ======================================== */

.pulse-alerts {
    margin-bottom: 32px;
}

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

.pulse-alert-item {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--border-radius-md, 8px);
    padding: 12px 16px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    align-items: center;
}

.pulse-alert-item--unread {
    border-left: 3px solid #F59E0B;
}

.pulse-alert-item--acked {
    opacity: 0.6;
}

.pulse-alert-item__severity {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.pulse-alert-item__severity--critical {
    background: #EF4444;
}

.pulse-alert-item__severity--warning {
    background: #F59E0B;
}

.pulse-alert-item__severity--info {
    background: #3B82F6;
}

.pulse-alert-item__body {
    min-width: 0;
}

.pulse-alert-item__message {
    font-size: var(--font-size-md, 14px);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.pulse-alert-item__meta {
    font-size: var(--font-size-sm, 12px);
    color: var(--text-secondary);
}

.pulse-alert-item__ack-btn {
    background: none;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--border-radius-sm, 4px);
    padding: 4px 12px;
    font-size: var(--font-size-sm, 12px);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal, 0.2s);
}

.pulse-alert-item__ack-btn:hover {
    background: var(--bg-secondary, #f3f4f6);
    color: var(--text-primary);
}

/* ========================================
   Empty States
   ======================================== */

.pulse-empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.pulse-empty-state p {
    margin-bottom: 4px;
}

.pulse-empty-hint {
    font-size: var(--font-size-sm, 13px);
    opacity: 0.7;
}

/* ========================================
   Back Button
   ======================================== */

.back-button-container {
    text-align: center;
    margin-top: 10px;
    padding-bottom: 20px;
}

.back-icon {
    width: 16px;
    height: 16px;
    vertical-align: middle;
    margin-right: 4px;
}

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

@media (max-width: 768px) {
    .pulse-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .pulse-monitor-card {
        grid-template-columns: auto 1fr;
        gap: 12px;
    }

    .pulse-monitor-card__metrics {
        grid-column: 1 / -1;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .pulse-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .pulse-stat-card {
        padding: 12px;
    }

    .pulse-stat-value {
        font-size: var(--font-size-lg, 20px);
    }
}