:root {
    --primary-color: #6457c1;
    --primary-dark: #5a4db8;
    --primary-light: #7b70d1;
    --font-family: 'JetBrains Mono', monospace;
}

body {
    font-family: var(--font-family);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark Theme */
[data-bs-theme="dark"] {
    --bs-body-bg: #0d1117;
    --bs-body-color: #c9d1d9;
    --bs-border-color: #30363d;
    --bs-secondary-bg: #161b22;
    --bs-tertiary-bg: #21262d;
}

[data-bs-theme="dark"] body {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
}

/* Light Theme */
[data-bs-theme="light"] {
    --bs-body-bg: #ffffff;
    --bs-body-color: #212529;
    --bs-border-color: #dee2e6;
    --bs-secondary-bg: #f8f9fa;
    --bs-tertiary-bg: #e9ecef;
}

[data-bs-theme="light"] body {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
}

/* Theme Switcher */
.theme-switcher {
    position: relative;
}

.theme-switcher .form-check-input {
    width: 3rem;
    height: 1.5rem;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.theme-switcher .form-check-input:checked {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
}

.theme-switcher label {
    font-size: 1.2rem;
    margin-left: 0.5rem;
    cursor: pointer;
}

/* Main Container */
.main-container {
    background-color: var(--bs-secondary-bg);
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--bs-border-color);
    transition: all 0.3s ease;
}

[data-bs-theme="dark"] .main-container {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* IP Display */
.ip-display {
    background-color: var(--bs-tertiary-bg);
    color: var(--primary-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--bs-border-color);
    transition: all 0.3s ease;
}

[data-bs-theme="dark"] .ip-display {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

/* Test Cards */
.test-card {
    background-color: var(--bs-tertiary-bg);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--bs-border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

[data-bs-theme="dark"] .test-card {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.test-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

[data-bs-theme="dark"] .test-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Card Headers */
.card-header {
    background-color: var(--bs-border-color);
    color: var(--primary-color);
    border-radius: 8px 8px 0 0;
    padding: 15px 20px;
    margin: -25px -25px 20px -25px;
    border-bottom: 1px solid var(--bs-tertiary-bg);
    transition: all 0.3s ease;
}

/* Test Results */
.test-result {
    background-color: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 8px;
    padding: 15px;
    margin: 10px 0;
    font-family: var(--font-family);
    font-size: 0.9em;
    max-height: 300px;
    overflow-y: auto;
    transition: all 0.3s ease;
}

/* Status Colors */
.status-good { color: #3fb950; }
.status-warning { color: #d29922; }
.status-bad { color: #f85149; }
.status-info { color: var(--primary-color); }

/* Test Button */
.test-button {
    background-color: var(--primary-color);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-family: var(--font-family);
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.test-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(100, 87, 193, 0.3);
}

.test-button:disabled {
    background-color: var(--bs-border-color);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--bs-border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Canvas */
.fingerprint-canvas {
    border: 2px solid var(--bs-border-color);
    border-radius: 8px;
    margin: 10px 0;
    background-color: var(--bs-body-bg);
    transition: all 0.3s ease;
}

/* Leak Indicators */
.leak-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
}

.leak-safe { background-color: #3fb950; }
.leak-warning { background-color: #d29922; }
.leak-danger { background-color: #f85149; }

/* Navigation Tabs */
.nav-tabs .nav-link {
    background-color: var(--bs-tertiary-bg);
    border: 1px solid var(--bs-border-color);
    color: var(--bs-body-color);
    font-family: var(--font-family);
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    border-color: var(--primary-light);
    color: var(--primary-color);
}

.nav-tabs .nav-link.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Progress Bar */
.progress {
    background-color: var(--bs-border-color);
    transition: all 0.3s ease;
}

.progress-bar {
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

/* Pre and Code */
pre, code {
    background-color: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 6px;
    padding: 12px;
    color: var(--bs-body-color);
    font-size: 0.85em;
    font-family: var(--font-family);
    transition: all 0.3s ease;
}

/* Tables */
.table-dark {
    --bs-table-bg: var(--bs-tertiary-bg);
    --bs-table-border-color: var(--bs-border-color);
    --bs-table-color: var(--bs-body-color);
}

.table {
    font-family: var(--font-family);
    font-size: 0.9em;
}

/* Alert Custom */
.alert-custom {
    background-color: var(--bs-secondary-bg);
    border: 1px solid var(--bs-border-color);
    color: var(--bs-body-color);
    border-radius: 8px;
    font-family: var(--font-family);
    transition: all 0.3s ease;
}

/* Primary Text Color Override */
.text-primary {
    color: var(--primary-color) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-container {
        margin: 10px;
        padding: 20px !important;
    }

    .ip-display {
        padding: 20px;
    }

    .test-card {
        padding: 20px;
    }

    .fingerprint-canvas {
        width: 100%;
        max-width: 350px;
    }

    .theme-switcher {
        position: absolute;
        top: 10px;
        right: 10px;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bs-secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--bs-border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Font Weight Variations */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
}

.fw-bold {
    font-weight: 700;
}

.lead {
    font-weight: 400;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.test-card {
    animation: fadeIn 0.6s ease-out;
}

.test-card:nth-child(2) { animation-delay: 0.1s; }
.test-card:nth-child(3) { animation-delay: 0.2s; }
.test-card:nth-child(4) { animation-delay: 0.3s; }