/* ===================================================
   PulseTrack Modern Analytics Dashboard Theme
   Ultra Sleek Dark Glassmorphism Design System
   =================================================== */

:root {
    --bg-main: #0a0e17;
    --bg-card: rgba(18, 24, 38, 0.75);
    --bg-card-hover: rgba(26, 35, 54, 0.85);
    --bg-sidebar: #0f1523;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.25);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.4);
    --secondary: #38bdf8;
    --accent: #a855f7;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 1px 1px rgba(255, 255, 255, 0.05);
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(56, 189, 248, 0.06) 0%, transparent 40%);
}

/* Background Animated Gradient Mesh */
.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

/* Sidebar */
aside.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px 18px;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 50;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 0 20px var(--primary-glow);
}

.brand-info h2 {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(90deg, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-info span {
    font-size: 11px;
    color: var(--success);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-group-title {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-dim);
    font-weight: 700;
    letter-spacing: 1px;
    margin: 16px 12px 8px;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    background: rgba(99, 102, 241, 0.12);
    color: #ffffff;
    border-left: 3px solid var(--primary);
}

.nav-link svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

/* Sidebar Site Selector */
.site-selector-box {
    margin-top: auto;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
}

.site-selector-box label {
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 6px;
    display: block;
}

.custom-select {
    width: 100%;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    outline: none;
    cursor: pointer;
    transition: var(--transition);
}

.custom-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Main Content Area */
main.main-content {
    flex: 1;
    padding: 30px 40px;
    max-width: 1500px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* Top Header Bar */
header.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.header-title h1 {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.live-indicator-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--success);
    animation: pulse-glow 1.8s infinite;
}

@keyframes pulse-glow {
    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-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Date Range Filter Buttons */
.date-pill-group {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 4px;
    border-radius: var(--radius-md);
    display: flex;
    gap: 4px;
}

.date-pill {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.date-pill:hover {
    color: #ffffff;
}

.date-pill.active {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 10px var(--primary-glow);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #4f46e5);
    color: #ffffff;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: 0 4px 15px var(--primary-glow);
    text-decoration: none;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

/* Metric KPI Cards Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.metric-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 22px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-glow);
    background: var(--bg-card-hover);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: var(--transition);
}

.metric-card:hover::before {
    opacity: 1;
}

.metric-card.card-live::before {
    opacity: 1;
    background: var(--success);
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.metric-title {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    background: rgba(255, 255, 255, 0.05);
}

.metric-value {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    color: #ffffff;
    line-height: 1.1;
    margin-bottom: 8px;
}

.metric-subtitle {
    font-size: 12px;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 4px;
}

.metric-subtitle .positive {
    color: var(--success);
    font-weight: 700;
}

/* Charts & Analytics Sections */
.analytics-section {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h3 {
    font-size: 17px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chart-container {
    position: relative;
    height: 340px;
    width: 100%;
}

/* Split Analytics Grids (Top Pages, Referrers, Geolocation, Tech) */
.split-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 24px;
}

.data-table-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 22px;
    box-shadow: var(--shadow-card);
}

.data-table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.data-table-header h4 {
    font-size: 15px;
    font-weight: 700;
}

.data-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.data-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
    font-size: 13px;
    transition: var(--transition);
}

.data-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.08);
}

.data-item-left {
    display: flex;
    align-items: center;
    gap: 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 75%;
}

.data-item-right {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    color: #ffffff;
}

.bar-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 99px;
    overflow: hidden;
    margin-top: 6px;
}

.bar-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 99px;
}

.flag-icon {
    font-size: 16px;
    line-height: 1;
}

/* Live Traffic Stream Feed */
.live-feed-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 450px;
    overflow-y: auto;
    padding-right: 6px;
}

.live-feed-item {
    display: grid;
    grid-template-columns: 80px 1fr 140px 120px 80px;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 12.5px;
    animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.tag-pill {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal-overlay.active {
    display: flex;
}

.modal-card {
    background: #111726;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 540px;
    padding: 28px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-muted);
}

.form-input {
    width: 100%;
    background: #090d16;
    border: 1px solid var(--border-color);
    color: #ffffff;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    outline: none;
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Code Snippet Box */
.code-block {
    background: #070a12;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 12px;
    color: #38bdf8;
    position: relative;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.btn-copy {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-copy:hover {
    background: var(--primary);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    aside.sidebar {
        width: 80px;
        padding: 20px 10px;
    }
    .brand-info, .nav-group-title, .nav-link span, .site-selector-box label {
        display: none;
    }
    .nav-link {
        justify-content: center;
        padding: 12px;
    }
    main.main-content {
        padding: 20px;
    }
    .split-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }
    aside.sidebar {
        width: 100%;
        height: auto;
        position: relative;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    .live-feed-item {
        grid-template-columns: 1fr 1fr;
    }
}