/* Monad Validator Monitor - Dashboard Styles
 * Professional, clean design with Monad brand identity
 * Brand colors: Purple #6E54FF, Dark #0E091C, Cyan #85E6FF
 */

/* ============================================
   Design Tokens (CSS Custom Properties)
   ============================================ */
:root {
    /* Monad Brand Colors */
    --monad-purple: #6E54FF;
    --monad-purple-light: #8B7AFF;
    --monad-purple-muted: rgba(110, 84, 255, 0.15);

    /* Background Colors */
    --bg-primary: #0E091C;
    --bg-secondary: #0A0714;
    --bg-card: #14111F;
    --bg-card-hover: #1A1628;

    /* Border Colors */
    --border-default: #1F1A2E;
    --border-hover: #2D2640;
    --border-active: #3D3555;

    /* Status Colors */
    --status-active: #85E6FF;
    --status-active-bg: rgba(133, 230, 255, 0.1);
    --status-warning: #FF8EE4;
    --status-warning-bg: rgba(255, 142, 228, 0.1);
    --status-critical: #FFAE45;
    --status-critical-bg: rgba(255, 174, 69, 0.1);
    --status-inactive: #6B7280;
    --status-inactive-bg: rgba(107, 114, 128, 0.1);

    /* Text Colors */
    --text-primary: #F8F7FC;
    --text-secondary: #A8A4B8;
    --text-muted: #6B6880;

    /* Network Colors */
    --network-testnet: #85E6FF;
    --network-mainnet: #6E54FF;

    /* Typography */
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing (8-point grid) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-display);
    font-weight: 400;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============================================
   Dashboard Container
   ============================================ */
.dashboard {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* ============================================
   Header
   ============================================ */
.header {
    padding: var(--space-5) 0;
    border-bottom: 1px solid var(--border-default);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    color: var(--monad-purple);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: 0.06em;
    color: var(--text-primary);
}

.logo-subtext {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.header-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.network-badge {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    text-transform: capitalize;
    letter-spacing: 0.02em;
}

.network-badge.testnet {
    background-color: var(--status-active-bg);
    color: var(--network-testnet);
    border: 1px solid rgba(133, 230, 255, 0.2);
}

.network-badge.mainnet {
    background-color: var(--monad-purple-muted);
    color: var(--network-mainnet);
    border: 1px solid rgba(110, 84, 255, 0.2);
}

.version {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
    padding: var(--space-6) 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* ============================================
   Validators Container
   ============================================ */
.validators-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* ============================================
   Validator Card
   ============================================ */
.validator-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    transition:
        border-color var(--transition-normal),
        background-color var(--transition-normal),
        transform var(--transition-fast),
        box-shadow var(--transition-normal);
    position: relative;
    cursor: default;
}

/* Subtle inner glow for depth */
.validator-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-md);
    padding: 1px;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.04) 0%,
        transparent 50%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.validator-card:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-card-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.validator-card:focus {
    outline: 2px solid var(--monad-purple);
    outline-offset: 2px;
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.validator-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
    flex: 1;
}

.validator-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--status-inactive);
    flex-shrink: 0;
    transition: box-shadow var(--transition-normal);
}

.validator-indicator.active {
    background-color: var(--status-active);
    box-shadow: 0 0 8px var(--status-active);
}

.validator-indicator.warning {
    background-color: var(--status-warning);
}

.validator-indicator.inactive {
    background-color: var(--status-inactive);
}

.validator-indicator.critical {
    background-color: var(--status-critical);
    box-shadow: 0 0 8px var(--status-critical);
}

.validator-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.validator-status-badge {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 600;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    flex-shrink: 0;
}

.validator-status-badge.active {
    background-color: var(--status-active-bg);
    color: var(--status-active);
}

.validator-status-badge.warning {
    background-color: var(--status-warning-bg);
    color: var(--status-warning);
}

.validator-status-badge.inactive {
    background-color: var(--status-inactive-bg);
    color: var(--status-inactive);
}

.validator-status-badge.critical {
    background-color: var(--status-critical-bg);
    color: var(--status-critical);
}

/* Card Metrics */
.card-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-top: 1px solid var(--border-default);
    border-bottom: 1px solid var(--border-default);
}

.metric {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.metric-label {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.metric-uptime {
    color: var(--status-active);
}

.metric-fails.has-fails {
    color: var(--status-critical);
    font-weight: 600;
}

/* Card Footer */
.card-footer {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-3);
}

.last-check-label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.last-check-time {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-secondary);
}

/* ============================================
   Legend Section
   ============================================ */
.legend-section {
    background-color: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: var(--space-4);
}

.legend-title {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-3);
}

.legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-5);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-dot--active {
    background-color: var(--status-active);
    box-shadow: 0 0 6px var(--status-active);
}

.legend-dot--warning {
    background-color: var(--status-warning);
}

.legend-dot--inactive {
    background-color: var(--status-inactive);
}

.legend-dot--critical {
    background-color: var(--status-critical);
}

.legend-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--space-4) 0;
    border-top: 1px solid var(--border-default);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.footer-status {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.connection-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.connection-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.connection-dot.connected {
    background-color: var(--status-active);
    box-shadow: 0 0 6px var(--status-active);
}

.connection-dot.disconnected {
    background-color: var(--status-critical);
}

#connection-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.refresh-badge {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
    padding: var(--space-1) var(--space-2);
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
}

.footer-credit {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
}

/* ============================================
   Error State
   ============================================ */
.validator-card.error {
    border-color: var(--status-critical);
}

.validator-card.error .validator-name {
    color: var(--status-critical);
}

/* ============================================
   Loading State
   ============================================ */
.validator-card.loading .validator-name::after {
    content: '';
    display: inline-block;
    width: 60px;
    height: 0.8em;
    background: linear-gradient(
        90deg,
        var(--border-default) 25%,
        var(--border-hover) 50%,
        var(--border-default) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
    margin-left: var(--space-2);
    vertical-align: middle;
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 600px) {
    .dashboard {
        padding: 0 var(--space-3);
    }

    .header {
        padding: var(--space-4) 0;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .logo-text {
        font-size: 1rem;
    }

    .card-metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .legend-items {
        gap: var(--space-4);
    }

    .footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .footer-status {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 380px) {
    .card-header {
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .validator-status-badge {
        order: 3;
        width: 100%;
        text-align: center;
        margin-top: var(--space-2);
    }

    .card-metrics {
        grid-template-columns: 1fr 1fr;
    }
}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    .validator-card {
        border-width: 2px;
    }

    .validator-status-badge {
        border: 1px solid currentColor;
    }

    .validator-indicator {
        border: 1px solid currentColor;
    }
}

.validator-card:focus-within {
    outline: 2px solid var(--monad-purple);
    outline-offset: 2px;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    body {
        background: white;
        color: black;
    }

    .validator-card {
        border: 1px solid #ccc;
        break-inside: avoid;
        box-shadow: none;
    }

    .connection-indicator,
    .footer {
        display: none;
    }
}