/* style.css - Dark Mode Theme */
:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #121926;
    --bg-card: #1a2332;
    --bg-card-hover: #232f42;
    --bg-input: #0d1420;
    --text-primary: #e8edf5;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #2a3a4f;
    --border-light: #1e2d3d;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --accent-blue: #3b82f6;
    --accent-green: #22c55e;
    --accent-yellow: #eab308;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    --accent-orange: #f59e0b;
    --gradient-start: #1a2332;
    --gradient-end: #0d1420;
}

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

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    background-image: 
        radial-gradient(ellipse at 10% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Navbar */
.navbar {
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--text-primary) !important;
    letter-spacing: -0.5px;
}

.navbar-brand span {
    color: var(--accent-blue);
}

.navbar .btn-outline-light {
    border-color: var(--border-color);
    color: var(--text-secondary);
}
.navbar .btn-outline-light:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

/* Cards */
.card, .compare-card, .result-card, .history-card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 8px 40px var(--shadow-color);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.card:hover, .compare-card:hover, .result-card:hover {
    border-color: var(--border-light);
}

.card-header {
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 600;
    border-radius: 16px 16px 0 0 !important;
    padding: 16px 24px;
}

.card-header.bg-primary {
    background: var(--accent-blue) !important;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple)) !important;
}

.card-body {
    padding: 24px;
}

/* Form Elements */
.form-control, .form-select {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color);
    color: var(--text-primary) !important;
    border-radius: 10px;
    padding: 10px 14px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    background: var(--bg-input) !important;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.form-label .text-muted {
    color: var(--text-muted) !important;
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--border-color) !important;
    background: var(--bg-input) !important;
    border-radius: 12px;
    padding: 40px;
    transition: all 0.3s ease;
}

.upload-area:hover {
    border-color: var(--accent-blue) !important;
    background: rgba(59, 130, 246, 0.05) !important;
}

.upload-area i {
    color: var(--text-muted);
}

/* Buttons */
.btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 10px 24px;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border: none;
    color: white;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-green), #16a34a);
    border: none;
    color: white;
}
.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.4);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--accent-yellow), #ca8a04);
    border: none;
    color: #0a0e17;
}
.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(234, 179, 8, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-red), #dc2626);
    border: none;
    color: white;
}
.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.4);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    border: none;
    color: white;
}
.btn-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.btn-lg {
    padding: 12px 32px;
    font-size: 1.05rem;
}

/* Stats Boxes */
.stat-box {
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.stat-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

.stat-box h6 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.stat-box h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0;
}

.stat-box small {
    font-size: 0.75rem;
    opacity: 0.7;
}

.stat-box.bg-info { background: linear-gradient(135deg, #1e3a5f, #1a365d) !important; border-color: #2a4a7f; }
.stat-box.bg-primary { background: linear-gradient(135deg, #1a365d, #2d1b69) !important; border-color: #3a4a8f; }
.stat-box.bg-success { background: linear-gradient(135deg, #14532d, #1a3d2a) !important; border-color: #2a6a4a; }
.stat-box.bg-warning { background: linear-gradient(135deg, #5f3d1a, #4a2d10) !important; border-color: #8a6a2a; color: #fcd34d !important; }

/* Tables */
.table {
    color: var(--text-primary) !important;
    border-color: var(--border-color);
}

.table thead th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-color: var(--border-color);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 16px;
}

.table tbody td {
    border-color: var(--border-color);
    padding: 10px 16px;
    vertical-align: middle;
}

.table-striped tbody tr:nth-of-type(odd) {
    background: rgba(255, 255, 255, 0.02);
}

.table-striped tbody tr:hover {
    background: rgba(59, 130, 246, 0.05);
}

.table code {
    background: var(--bg-input);
    color: var(--accent-blue);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Badges */
.badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.75rem;
}

.badge.bg-success { background: var(--accent-green) !important; color: #0a0e17; }
.badge.bg-warning { background: var(--accent-yellow) !important; color: #0a0e17; }
.badge.bg-danger { background: var(--accent-red) !important; }
.badge.bg-info { background: var(--accent-blue) !important; }

/* Debug Box */
.debug-box {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: #a8b5c8;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 13px;
    padding: 16px 20px;
    overflow-x: auto;
    max-height: 300px;
    overflow-y: auto;
    line-height: 1.8;
}

/* Alerts */
.alert {
    border-radius: 12px;
    border: none;
    padding: 16px 20px;
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    color: #93bbfc;
    border-left: 4px solid var(--accent-blue);
}
.alert-info h5 { color: #93bbfc; }

.alert-success {
    background: rgba(34, 197, 94, 0.15);
    color: #86efac;
    border-left: 4px solid var(--accent-green);
}

.alert-warning {
    background: rgba(234, 179, 8, 0.15);
    color: #fcd34d;
    border-left: 4px solid var(--accent-yellow);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border-left: 4px solid var(--accent-red);
}

/* Step Number */
.step-number {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 10px;
    font-size: 0.9rem;
}

/* DataTables */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-secondary) !important;
}

.dataTables_wrapper .dataTables_filter input {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: 8px;
    padding: 6px 12px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-secondary) !important;
    border-radius: 8px;
    margin: 0 2px;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--accent-blue) !important;
    border-color: var(--accent-blue) !important;
    color: white !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--border-color) !important;
    color: var(--text-primary) !important;
}

.dataTables_wrapper select {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: 8px;
    padding: 4px 8px;
}

/* Modals */
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}
.modal-header {
    border-bottom: 1px solid var(--border-color);
}
.modal-footer {
    border-top: 1px solid var(--border-color);
}
.modal-title {
    color: var(--text-primary);
}
.btn-close {
    filter: invert(1);
}

/* Links */
a {
    color: var(--accent-blue);
    text-decoration: none;
}
a:hover {
    color: #60a5fa;
    text-decoration: underline;
}

/* Text Colors */
.text-muted { color: var(--text-muted) !important; }
.text-primary { color: var(--accent-blue) !important; }
.text-success { color: var(--accent-green) !important; }
.text-warning { color: var(--accent-yellow) !important; }
.text-danger { color: var(--accent-red) !important; }

/* Dividers */
hr {
    border-color: var(--border-color);
    opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
    .card-body, .compare-card, .result-card {
        padding: 16px;
    }
    .stat-box h2 {
        font-size: 1.6rem;
    }
    .upload-area {
        padding: 20px;
    }
    .btn-lg {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
    .navbar-brand {
        font-size: 1.1rem;
    }
}