/* Google Fonts Import for Outfit and Plus Jakarta Sans */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* Cascade Layer declarations to maintain high code structural hierarchy */
@layer reset, base, theme, components, utilities;

@layer reset {
    *, *::before, *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    
    html {
        scroll-behavior: smooth;
        text-size-adjust: 100%;
    }
    
    body {
        min-height: 100vh;
        text-rendering: optimizeSpeed;
        line-height: 1.5;
        overflow-x: hidden;
    }
    
    img, picture, svg, video {
        display: block;
        max-width: 100%;
        height: auto;
    }
    
    input, button, textarea, select {
        font: inherit;
    }
    
    button {
        cursor: pointer;
        background: none;
        border: none;
    }
    
    a {
        text-decoration: none;
        color: inherit;
    }
}

@layer base {
    :root {
        /* Primary Brand Colors (School Bus Palette) */
        --primary-amber: #f59e0b;
        --primary-amber-hover: #d97706;
        --primary-amber-light: #fef3c7;
        --accent-orange: #f97316;
        --accent-orange-hover: #ea580c;
        
        /* Dark Theme Default Canvas Tokens */
        --bg-canvas: #0b0f19;
        --bg-panel: rgba(17, 24, 39, 0.7);
        --bg-panel-solid: #111827;
        --border-color: rgba(255, 255, 255, 0.08);
        --border-color-hover: rgba(255, 255, 255, 0.16);
        --text-primary: #f9fafb;
        --text-secondary: #9ca3af;
        --text-muted: #6b7280;
        
        /* Interactive Alerts Tokens */
        --color-success: #10b981;
        --color-error: #ef4444;
        --color-warning: #f59e0b;
        --color-info: #3b82f6;
        
        /* Premium Layout Variables */
        --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
        --font-title: 'Outfit', var(--font-sans);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 24px;
        --radius-pill: 9999px;
        --shadow-soft: 0 4px 20px -2px rgba(0, 0, 0, 0.3);
        --shadow-glow: 0 0 25px -5px rgba(245, 158, 11, 0.25);
        --glass-bg: rgba(15, 23, 42, 0.55);
        --glass-blur: blur(12px);
    }
    
    body {
        font-family: var(--font-sans);
        background-color: var(--bg-canvas);
        color: var(--text-primary);
        background-image: 
            radial-gradient(at 10% 10%, rgba(245, 158, 11, 0.06) 0px, transparent 50%),
            radial-gradient(at 90% 10%, rgba(249, 115, 22, 0.05) 0px, transparent 50%),
            radial-gradient(at 50% 80%, rgba(59, 130, 246, 0.04) 0px, transparent 50%);
        background-attachment: fixed;
    }
    
    /* Scrollbar customized styles */
    body {
        scrollbar-width: thin;
        scrollbar-color: var(--primary-amber) var(--bg-canvas);
    }
    
    ::-webkit-scrollbar {
        width: 8px;
        height: 8px;
    }
    ::-webkit-scrollbar-track {
        background: var(--bg-canvas);
    }
    ::-webkit-scrollbar-thumb {
        background: var(--border-color-hover);
        border-radius: var(--radius-pill);
    }
    ::-webkit-scrollbar-thumb:hover {
        background: var(--primary-amber);
    }
}

@layer theme {
    /* Auto theme switching based on system preference */
    @media (prefers-color-scheme: light) {
        :root {
            --bg-canvas: #f8fafc;
            --bg-panel: rgba(255, 255, 255, 0.75);
            --bg-panel-solid: #ffffff;
            --border-color: rgba(15, 23, 42, 0.08);
            --border-color-hover: rgba(15, 23, 42, 0.16);
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #64748b;
            --glass-bg: rgba(255, 255, 255, 0.65);
            --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
            
            background-image: 
                radial-gradient(at 10% 10%, rgba(245, 158, 11, 0.08) 0px, transparent 50%),
                radial-gradient(at 90% 10%, rgba(249, 115, 22, 0.06) 0px, transparent 50%);
        }
    }
}

@layer components {
    /* Navbar styling */
    .navbar {
        position: sticky;
        top: 0;
        z-index: 100;
        background: var(--glass-bg);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-bottom: 1px solid var(--border-color);
        padding: 1rem 2rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        transition: padding 0.3s ease;
    }
    
    .logo-container {
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }
    
    .logo-icon {
        background: linear-gradient(135deg, var(--primary-amber), var(--accent-orange));
        color: #0b0f19;
        font-weight: 800;
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        box-shadow: var(--shadow-glow);
    }
    
    .logo-text {
        font-family: var(--font-title);
        font-size: 1.5rem;
        font-weight: 800;
        letter-spacing: -0.5px;
        background: linear-gradient(to right, var(--text-primary), var(--primary-amber));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    
    .nav-links {
        display: flex;
        align-items: center;
        gap: 1.5rem;
    }
    
    .nav-link {
        font-weight: 500;
        font-size: 0.95rem;
        color: var(--text-secondary);
        transition: color 0.2s ease, transform 0.2s ease;
    }
    
    .nav-link:hover {
        color: var(--primary-amber);
        transform: translateY(-1px);
    }
    
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
        font-weight: 600;
        border-radius: var(--radius-md);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        text-align: center;
    }
    
    .btn-primary {
        background: linear-gradient(135deg, var(--primary-amber), var(--accent-orange));
        color: #000;
        box-shadow: var(--shadow-glow);
    }
    
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 30px -2px rgba(245, 158, 11, 0.45);
        opacity: 0.95;
    }
    
    .btn-secondary {
        background: var(--border-color);
        color: var(--text-primary);
        border: 1px solid var(--border-color-hover);
    }
    
    .btn-secondary:hover {
        background: var(--border-color-hover);
        transform: translateY(-2px);
    }
    
    /* Hero & Card Grid Section */
    .section {
        padding: 4rem 2rem;
        max-width: 1200px;
        margin: 0 auto;
    }
    
    .glass-card {
        background: var(--bg-panel);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 2.5rem;
        box-shadow: var(--shadow-soft);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease, box-shadow 0.3s ease;
    }
    
    .glass-card:hover {
        border-color: var(--primary-amber);
        box-shadow: var(--shadow-glow), var(--shadow-soft);
    }
    
    /* Interactive forms styling */
    .form-group {
        position: relative;
        margin-bottom: 1.75rem;
    }
    
    .form-label {
        display: block;
        font-weight: 500;
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin-bottom: 0.5rem;
        transition: color 0.2s ease;
    }
    
    .form-control {
        width: 100%;
        background: rgba(0, 0, 0, 0.2);
        border: 1px solid var(--border-color);
        color: var(--text-primary);
        padding: 0.9rem 1.2rem;
        font-size: 0.95rem;
        border-radius: var(--radius-md);
        transition: all 0.3s ease;
    }
    
    .form-control:focus {
        outline: none;
        border-color: var(--primary-amber);
        background: rgba(0, 0, 0, 0.35);
        box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
    }
    
    /* Interactive browser-validation selectors */
    .form-control:user-invalid {
        border-color: var(--color-error);
    }
    .form-control:user-valid:not(:placeholder-shown) {
        border-color: var(--color-success);
    }
    
    /* Tab controls */
    .tab-container {
        display: flex;
        background: rgba(0, 0, 0, 0.15);
        border-radius: var(--radius-md);
        padding: 0.3rem;
        border: 1px solid var(--border-color);
        margin-bottom: 2rem;
    }
    
    .tab-btn {
        flex: 1;
        padding: 0.75rem;
        font-weight: 600;
        font-size: 0.9rem;
        color: var(--text-secondary);
        border-radius: var(--radius-sm);
        transition: all 0.2s ease;
        text-align: center;
    }
    
    .tab-btn.active {
        background: linear-gradient(135deg, var(--primary-amber), var(--accent-orange));
        color: #000;
        box-shadow: var(--shadow-soft);
    }
    
    /* Table & Stats Dashboard components */
    .dashboard-layout {
        display: grid;
        grid-template-columns: 260px 1fr;
        min-height: calc(100vh - 70px);
    }
    
    .sidebar {
        background: var(--bg-panel-solid);
        border-right: 1px solid var(--border-color);
        padding: 2rem 1.5rem;
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .sidebar-menu {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .sidebar-link {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.85rem 1.2rem;
        border-radius: var(--radius-md);
        font-weight: 500;
        color: var(--text-secondary);
        transition: all 0.2s ease;
    }
    
    .sidebar-link:hover, .sidebar-link.active {
        color: var(--primary-amber);
        background: rgba(245, 158, 11, 0.08);
    }
    
    .main-content {
        padding: 3rem;
        overflow-y: auto;
    }
    
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 1.5rem;
        margin-bottom: 3rem;
    }
    
    .stat-card {
        background: var(--bg-panel);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 1.75rem;
        display: flex;
        align-items: center;
        gap: 1.25rem;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        border-radius: var(--radius-md);
        background: rgba(245, 158, 11, 0.1);
        color: var(--primary-amber);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
    }
    
    .stat-info {
        display: flex;
        flex-direction: column;
    }
    
    .stat-value {
        font-size: 1.75rem;
        font-weight: 700;
        font-family: var(--font-title);
    }
    
    .stat-label {
        font-size: 0.85rem;
        color: var(--text-secondary);
    }
    
    /* Modern visual tables */
    .table-container {
        width: 100%;
        overflow-x: auto;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        margin-top: 1.5rem;
    }
    
    .table {
        width: 100%;
        border-collapse: collapse;
        text-align: left;
        background: rgba(17, 24, 39, 0.3);
    }
    
    .table th {
        background: rgba(0, 0, 0, 0.25);
        color: var(--text-primary);
        font-weight: 600;
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        padding: 1rem 1.5rem;
        border-bottom: 1px solid var(--border-color);
    }
    
    .table td {
        padding: 1rem 1.5rem;
        border-bottom: 1px solid var(--border-color);
        font-size: 0.95rem;
        color: var(--text-secondary);
    }
    
    .table tr:last-child td {
        border-bottom: none;
    }
    
    .table tr:hover td {
        background: rgba(255, 255, 255, 0.02);
        color: var(--text-primary);
    }
    
    /* Badge styling */
    .badge {
        display: inline-flex;
        align-items: center;
        padding: 0.25rem 0.75rem;
        font-size: 0.75rem;
        font-weight: 600;
        border-radius: var(--radius-pill);
        text-transform: uppercase;
        letter-spacing: 0.03em;
    }
    
    .badge-success { background: rgba(16, 185, 129, 0.15); color: var(--color-success); }
    .badge-pending { background: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
    .badge-error { background: rgba(239, 68, 68, 0.15); color: var(--color-error); }
    
    /* Custom dialog alerts styling */
    .dialog {
        border: none;
        background: var(--bg-panel-solid);
        color: var(--text-primary);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
        padding: 2.5rem;
        max-width: 500px;
        margin: auto;
        position: fixed;
        inset: 0;
        transition: display 0.3s allow-discrete, overlay 0.3s allow-discrete;
    }
    
    .dialog::backdrop {
        background: rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(8px);
    }
    
    /* Starting style for entering modal */
    @starting-style {
        .dialog {
            transform: scale(0.9);
            opacity: 0;
        }
    }
    
    .dialog-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 1.5rem;
    }
    
    .dialog-title {
        font-family: var(--font-title);
        font-size: 1.5rem;
        font-weight: 700;
    }
    
    .dialog-close {
        color: var(--text-secondary);
        font-size: 1.5rem;
    }
    
    .dialog-close:hover {
        color: var(--primary-amber);
    }
}

@layer utilities {
    .text-gradient {
        background: linear-gradient(135deg, var(--primary-amber), var(--accent-orange));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    
    .mt-4 { margin-top: 1rem; }
    .mb-6 { margin-bottom: 1.5rem; }
    .w-full { width: 100%; }
    
    /* Keyframe animation for active route path tracking simulation */
    @keyframes busDrive {
        0% { transform: translateX(-5%) rotate(0deg); }
        48% { transform: translateX(45%) rotate(1deg); }
        50% { transform: translateX(50%) rotate(-1deg); }
        98% { transform: translateX(95%) rotate(-1deg); }
        100% { transform: translateX(105%) rotate(0deg); }
    }
    
    .bus-track {
        height: 6px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-pill);
        position: relative;
        margin: 2.5rem 0;
    }
    
    .bus-progress {
        height: 100%;
        background: linear-gradient(to right, var(--primary-amber), var(--accent-orange));
        border-radius: var(--radius-pill);
        width: 60%; /* Static dynamic state */
        position: absolute;
        top: 0;
        left: 0;
    }
    
    .bus-indicator {
        position: absolute;
        top: -15px;
        left: 60%;
        transform: translateX(-50%);
        font-size: 1.5rem;
        animation: pulseGlow 2s infinite ease-in-out;
    }
    
    @keyframes pulseGlow {
        0%, 100% { transform: translateX(-50%) scale(1); filter: drop-shadow(0 0 2px var(--primary-amber)); }
        50% { transform: translateX(-50%) scale(1.15); filter: drop-shadow(0 0 10px var(--primary-amber)); }
    }
    
    /* Confetti implementation layer */
    .confetti-canvas {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        pointer-events: none;
        z-index: 1000;
        display: none;
    }
}

/* Mobile responsive fixes */
@media (max-width: 768px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 1rem;
    }
    
    .sidebar-menu {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }
    
    .sidebar-link {
        white-space: nowrap;
        padding: 0.6rem 1rem;
    }
    
    .main-content {
        padding: 1.5rem;
    }
    
    .navbar {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }
}