/* ==========================================================================
   ByteWatch Core CSS Design System
   ========================================================================== */

/* Design Variables */
:root {
    --bg-dark: #07090e;
    --bg-panel: rgba(13, 17, 28, 0.75);
    --bg-card: rgba(20, 26, 43, 0.55);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(56, 189, 248, 0.15);
    --bg-th: #0f1322;
    --bg-table-container: rgba(7, 9, 14, 0.4);
    --logo-gradient: linear-gradient(135deg, #ffffff 60%, #cbd5e1 100%);
    
    /* Core Neon Palettes */
    --neon-cyan: #06b6d4;
    --neon-cyan-glow: rgba(6, 182, 212, 0.35);
    --neon-purple: #a855f7;
    --neon-purple-glow: rgba(168, 85, 247, 0.35);
    --neon-green: #10b981;
    --neon-green-glow: rgba(16, 185, 129, 0.35);
    --neon-amber: #f59e0b;
    --neon-amber-glow: rgba(245, 158, 11, 0.35);
    --neon-red: #ef4444;
    --neon-red-glow: rgba(239, 68, 68, 0.35);

    /* Text System */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Fonts */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', SFMono-Regular, Consolas, monospace;
    
    /* Shadows */
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glow-shadow: 0 0 15px var(--neon-cyan-glow);
}

/* Light Theme Variables Override */
body.light-theme {
    --bg-dark: #f8fafc;
    --bg-panel: rgba(255, 255, 255, 0.85);
    --bg-card: rgba(255, 255, 255, 0.7);
    --border-color: rgba(15, 23, 42, 0.08);
    --border-glow: rgba(2, 132, 199, 0.08);
    --bg-th: #e2e8f0;
    --bg-table-container: rgba(255, 255, 255, 0.5);
    --logo-gradient: linear-gradient(135deg, #0f172a 60%, #334155 100%);

    /* Core Neon Palettes adapted for high legibility on light backgrounds */
    --neon-cyan: #0284c7;
    --neon-cyan-glow: rgba(2, 132, 199, 0.15);
    --neon-purple: #7c3aed;
    --neon-purple-glow: rgba(124, 58, 237, 0.15);
    --neon-green: #059669;
    --neon-green-glow: rgba(5, 150, 105, 0.15);
    --neon-amber: #d97706;
    --neon-amber-glow: rgba(217, 119, 6, 0.15);
    --neon-red: #dc2626;
    --neon-red-glow: rgba(220, 38, 38, 0.15);

    /* Text System */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    /* Shadows & Glows */
    --card-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
    --glow-shadow: 0 0 15px var(--neon-cyan-glow);
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 10% 20%, rgba(168, 85, 247, 0.1) 0px, transparent 50%),
        radial-gradient(at 90% 80%, rgba(6, 182, 212, 0.1) 0px, transparent 50%);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Scrollbar customization */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(7, 9, 14, 0.5);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--neon-cyan);
    box-shadow: 0 0 8px var(--neon-cyan-glow);
}

/* Layout Wrapper */
.dashboard-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--card-shadow);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-area h1 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--logo-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-accent {
    color: var(--neon-cyan);
    -webkit-text-fill-color: initial;
    text-shadow: 0 0 8px var(--neon-cyan-glow);
}

.pulse-indicator {
    width: 10px;
    height: 10px;
    background-color: var(--neon-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--neon-green-glow);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.header-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.telemetry-badge {
    background: rgba(6, 182, 212, 0.1);
    color: var(--neon-cyan);
    border: 1px solid rgba(6, 182, 212, 0.2);
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.refresh-indicator {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.refresh-indicator::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: var(--neon-cyan);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--neon-cyan-glow);
}

/* Dashboard Main Layout */
.dashboard-main {
    flex: 1;
}

/* Vitals Container (HTMX swapped grid) */
.vitals-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    transition: all 0.3s ease;
}

@media (max-width: 900px) {
    .vitals-grid {
        grid-template-columns: 1fr;
    }
}

/* Metric Cards Base */
.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--card-shadow);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: transparent;
    transition: background 0.3s ease;
}

.metric-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title-block {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-icon {
    width: 22px;
    height: 22px;
    color: var(--text-secondary);
}

.card-title-block h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

.live-tag {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Card Body */
.card-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Heroes */
.metric-hero {
    display: flex;
    align-items: baseline;
    gap: 0.15rem;
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -2px;
}

.metric-unit {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Specific Card Themes & Fills */
.cpu-card::before {
    background: linear-gradient(90deg, var(--neon-cyan), #0284c7);
}
.cpu-card:hover {
    box-shadow: 0 0 30px rgba(6, 182, 212, 0.08);
}
.cpu-card .metric-value, .cpu-card .card-icon {
    color: var(--neon-cyan);
    text-shadow: 0 0 12px var(--neon-cyan-glow);
}
.cpu-fill {
    background: linear-gradient(90deg, var(--neon-cyan), #22d3ee);
    box-shadow: 0 0 8px var(--neon-cyan-glow);
}

.memory-card::before {
    background: linear-gradient(90deg, var(--neon-purple), #c084fc);
}
.memory-card:hover {
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.08);
}
.memory-card .metric-value, .memory-card .card-icon {
    color: var(--neon-purple);
    text-shadow: 0 0 12px var(--neon-purple-glow);
}
.memory-fill {
    background: linear-gradient(90deg, var(--neon-purple), #c084fc);
    box-shadow: 0 0 8px var(--neon-purple-glow);
}

/* Linear Progress Bar */
.progress-bar-container {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.progress-bar {
    height: 100%;
    border-radius: 10px;
    transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Details Subsystem */
.metric-details {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

.detail-row .label {
    color: var(--text-secondary);
}

.detail-row .value {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-weight: 500;
}

/* Warning States */
.metric-card.moderate .metric-value {
    color: var(--neon-amber) !important;
}
.metric-card.moderate::before {
    background: var(--neon-amber) !important;
}
.metric-card.moderate .progress-bar {
    background: var(--neon-amber) !important;
    box-shadow: 0 0 8px var(--neon-amber-glow) !important;
}

.metric-card.warning .metric-value {
    color: var(--neon-red) !important;
}
.metric-card.warning::before {
    background: var(--neon-red) !important;
}
.metric-card.warning .progress-bar {
    background: var(--neon-red) !important;
    box-shadow: 0 0 8px var(--neon-red-glow) !important;
}

/* Processes Section */
.process-card {
    grid-column: span 2;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--card-shadow);
}

@media (max-width: 900px) {
    .process-card {
        grid-column: span 1;
    }
}

.process-card .card-icon {
    color: var(--neon-green);
}

.header-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.process-legend {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.dot.active {
    background-color: var(--neon-green);
    box-shadow: 0 0 6px var(--neon-green-glow);
}

/* Scrollable Table Viewport */
.table-container {
    overflow-y: auto;
    max-height: 480px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-table-container);
}

.process-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.process-table th {
    position: sticky;
    top: 0;
    background: var(--bg-th);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    z-index: 10;
}

.process-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.process-table tbody tr {
    transition: background-color 0.2s ease;
}

.process-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Row states */
.process-table tr.med-load {
    background-color: rgba(245, 158, 11, 0.02);
}
.process-table tr.med-load:hover {
    background-color: rgba(245, 158, 11, 0.04);
}

.process-table tr.high-load {
    background-color: rgba(239, 68, 68, 0.03);
}
.process-table tr.high-load:hover {
    background-color: rgba(239, 68, 68, 0.05);
}

/* Col formatting */
.col-pid {
    width: 10%;
    color: var(--text-muted);
}
.col-name {
    width: 35%;
}
.col-user {
    width: 20%;
    color: var(--text-secondary);
}
.col-mem {
    width: 20%;
}
.col-cpu {
    width: 15%;
}

.mono {
    font-family: var(--font-mono);
}

.bold {
    font-weight: 600;
}

.text-right {
    text-align: right;
}

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

/* Percentage pill */
.percentage-pill {
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    display: inline-block;
    min-width: 55px;
    text-align: center;
}

.percentage-pill.warning {
    color: var(--neon-amber);
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
}

.percentage-pill.danger {
    color: var(--neon-red);
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
}

.no-data {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem !important;
}

/* Footer styling */
.app-footer {
    margin-top: 2rem;
    padding: 1rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.app-footer p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Theme Toggle Button Styling */
.theme-toggle-btn {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.05);
}

body.light-theme .theme-toggle-btn:hover {
    background: rgba(15, 23, 42, 0.06);
    border-color: rgba(15, 23, 42, 0.15);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
}

.theme-toggle-btn .sun-icon {
    display: block;
    width: 18px;
    height: 18px;
}

.theme-toggle-btn .moon-icon {
    display: none;
    width: 18px;
    height: 18px;
}

body.light-theme .theme-toggle-btn .sun-icon {
    display: none;
}

body.light-theme .theme-toggle-btn .moon-icon {
    display: block;
}

/* ==========================================================================
   Responsive Mobile & Tablet Media Queries
   ========================================================================== */

@media (max-width: 768px) {
    /* Tablet Optimizations */
    .vitals-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .dashboard-wrapper {
        padding: 1rem;
    }
    
    .metric-card, .process-card {
        padding: 1.5rem;
    }
    
    .metric-value {
        font-size: 3.2rem;
    }
}

@media (max-width: 580px) {
    /* Mobile Phone Optimizations */
    .dashboard-wrapper {
        padding: 0.65rem;
    }
    
    .app-header {
        padding: 0.75rem 1rem;
        margin-bottom: 1rem;
    }
    
    .logo-area h1 {
        font-size: 1.35rem;
    }
    
    /* Hide the redundant text badge to prevent horizontal overflow */
    .telemetry-badge {
        display: none;
    }
    
    .metric-card, .process-card {
        padding: 1.15rem;
        border-radius: 16px;
        gap: 1rem;
    }
    
    .metric-value {
        font-size: 2.85rem;
    }
    
    .metric-hero {
        margin-bottom: 0.25rem;
    }
    
    /* Hide username column on mobile to preserve layout integrity */
    .col-user {
        display: none;
    }
    
    /* Optimize process listing paddings */
    .process-table th, .process-table td {
        padding: 0.65rem 0.65rem;
        font-size: 0.8rem;
    }
    
    .col-pid {
        width: 15%;
    }
    .col-name {
        width: 45%;
    }
    .col-mem {
        width: 20%;
    }
    .col-cpu {
        width: 20%;
    }
    
    .percentage-pill {
        min-width: 48px;
        padding: 0.15rem 0.35rem;
        font-size: 0.75rem;
    }
    
    .app-footer {
        margin-top: 1.5rem;
        padding: 0.75rem 0;
    }
}