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

:root {
    /* Color Palette - Brutalism Inspired */
    --primary-color: #05386B;
    --secondary-color: #379683;
    --accent-color: #5CDB95;
    --light-accent: #8EE4AF;
    --background-light: #EDF5E1;
    
    /* Dark Theme Colors */
    --dark-bg: #1a1a1a;
    --dark-surface: #2d2d2d;
    --dark-text: #e0e0e0;
    --dark-border: #404040;
    
    /* Typography */
    --font-primary: 'Arial', 'Helvetica', sans-serif;
    --font-weight-bold: 700;
    --font-weight-normal: 400;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Brutalism Design Elements */
    --border-thick: 4px;
    --border-radius: 0;
    --shadow-brutal: 8px 8px 0px rgba(0, 0, 0, 0.2);
    --shadow-hover: 12px 12px 0px rgba(0, 0, 0, 0.3);
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --bs-body-bg: var(--dark-bg);
    --bs-body-color: var(--dark-text);
    --bs-card-bg: var(--dark-surface);
    --bs-border-color: var(--dark-border);
}

/* Base Typography */
body {
    font-family: var(--font-primary);
    line-height: 1.6;
    background-color: var(--background-light);
    transition: all 0.3s ease;
}

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

/* Brutalism Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.display-4 {
    font-weight: 900;
    text-shadow: 3px 3px 0px rgba(0, 0, 0, 0.1);
}

/* Brutalism Components */
.btn {
    border-radius: var(--border-radius);
    border-width: var(--border-thick);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-brutal);
}

.btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-hover);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

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

/* Cards with Brutalism Style */
.card {
    border-radius: var(--border-radius);
    border-width: var(--border-thick);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-brutal);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-hover);
}

[data-theme="dark"] .card {
    background-color: var(--dark-surface);
    border-color: var(--accent-color);
    color: var(--dark-text);
}

.card-header {
    border-radius: 0;
    border-bottom-width: var(--border-thick);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
}

/* Form Controls */
.form-control,
.form-select {
    border-radius: var(--border-radius);
    border-width: 2px;
    border-color: var(--secondary-color);
    font-weight: var(--font-weight-normal);
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(92, 219, 149, 0.25);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--dark-surface);
    border-color: var(--dark-border);
    color: var(--dark-text);
}

/* Navigation */
.navbar {
    background-color: var(--primary-color) !important;
    border-bottom: var(--border-thick) solid var(--secondary-color);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 900;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Progress Bars */
.progress {
    border-radius: var(--border-radius);
    border: 2px solid var(--primary-color);
    background-color: var(--background-light);
}

[data-theme="dark"] .progress {
    background-color: var(--dark-surface);
}

.progress-bar {
    background-color: var(--accent-color);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--background-light) 0%, var(--light-accent) 100%);
    padding: var(--spacing-xl) var(--spacing-lg);
    border: var(--border-thick) solid var(--primary-color);
    box-shadow: var(--shadow-brutal);
    margin-bottom: var(--spacing-xl);
}

[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, var(--dark-surface) 0%, var(--primary-color) 100%);
}

/* Results Section */
#resultsSection .card {
    border-color: var(--accent-color);
}

#resultsSection .card-body {
    padding: var(--spacing-lg);
}

#resultsSection .display-4 {
    color: var(--primary-color);
}

[data-theme="dark"] #resultsSection .display-4 {
    color: var(--accent-color);
}

/* Health Tips */
.health-tip-card {
    background-color: var(--light-accent);
    border: 2px solid var(--accent-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

[data-theme="dark"] .health-tip-card {
    background-color: var(--dark-surface);
    color: var(--dark-text);
}

/* Schedule Cards */
.schedule-day {
    background-color: var(--background-light);
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    transition: all 0.2s ease;
}

.schedule-day:hover {
    background-color: var(--light-accent);
    transform: translateY(-2px);
}

[data-theme="dark"] .schedule-day {
    background-color: var(--dark-surface);
    border-color: var(--dark-border);
}

[data-theme="dark"] .schedule-day:hover {
    background-color: var(--primary-color);
}

/* Modal Customization */
.modal-content {
    border-radius: var(--border-radius);
    border: var(--border-thick) solid var(--primary-color);
    box-shadow: var(--shadow-brutal);
}

[data-theme="dark"] .modal-content {
    background-color: var(--dark-surface);
    color: var(--dark-text);
}

.modal-header {
    border-bottom: 2px solid var(--secondary-color);
    background-color: var(--background-light);
}

[data-theme="dark"] .modal-header {
    background-color: var(--dark-bg);
    border-bottom-color: var(--dark-border);
}

/* Offcanvas Customization */
.offcanvas {
    border-left: var(--border-thick) solid var(--primary-color);
}

[data-theme="dark"] .offcanvas {
    background-color: var(--dark-surface);
    color: var(--dark-text);
}

.offcanvas-header {
    border-bottom: 2px solid var(--secondary-color);
    background-color: var(--background-light);
}

[data-theme="dark"] .offcanvas-header {
    background-color: var(--dark-bg);
    border-bottom-color: var(--dark-border);
}

/* Accordion Customization */
.accordion-item {
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

[data-theme="dark"] .accordion-item {
    background-color: var(--dark-surface);
    border-color: var(--dark-border);
}

.accordion-button {
    background-color: var(--background-light);
    border: none;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
}

[data-theme="dark"] .accordion-button {
    background-color: var(--dark-surface);
    color: var(--dark-text);
}

.accordion-button:not(.collapsed) {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

/* Footer */
footer {
    background-color: var(--primary-color) !important;
    border-top: var(--border-thick) solid var(--secondary-color);
}

/* Ad Containers */
.ad-container {
    padding: var(--spacing-md);
    background-color: var(--background-light);
    border: 2px dashed var(--secondary-color);
    border-radius: var(--border-radius);
    text-align: center;
}

[data-theme="dark"] .ad-container {
    background-color: var(--dark-surface);
    border-color: var(--dark-border);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: var(--spacing-md);
    }
    
    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        margin-bottom: var(--spacing-lg);
    }
    
    .card {
        margin-bottom: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }
    
    .btn + .btn {
        margin-left: 0;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Error States */
.error {
    color: #dc3545;
    border-color: #dc3545 !important;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: var(--spacing-sm);
    border: 2px solid #dc3545;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

[data-theme="dark"] .error-message {
    background-color: #2d1b1b;
    color: #f5c6cb;
}

/* Success States */
.success-message {
    background-color: #d4edda;
    color: #155724;
    padding: var(--spacing-sm);
    border: 2px solid var(--accent-color);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

[data-theme="dark"] .success-message {
    background-color: #1b2d1b;
    color: #d1e7dd;
}

/* Marathon Status Indicators */
.status-active {
    color: var(--accent-color);
    font-weight: var(--font-weight-bold);
}

.status-completed {
    color: var(--secondary-color);
    font-weight: var(--font-weight-bold);
}

.status-paused {
    color: #ffc107;
    font-weight: var(--font-weight-bold);
}

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

::-webkit-scrollbar-track {
    background: var(--background-light);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

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

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

/* Print Styles */
@media print {
    .navbar,
    .btn,
    .ad-container,
    .offcanvas,
    .modal {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000000;
        --secondary-color: #333333;
        --accent-color: #ffffff;
        --background-light: #ffffff;
    }
    
    .btn {
        border-width: 3px;
    }
    
    .card {
        border-width: 3px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles for Accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 0 0 4px 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 0;
}

/* Utility Classes */
.text-brutalist {
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.shadow-brutal {
    box-shadow: var(--shadow-brutal) !important;
}

.border-brutal {
    border: var(--border-thick) solid var(--primary-color) !important;
}

.bg-accent {
    background-color: var(--accent-color) !important;
}

.text-accent {
    color: var(--accent-color) !important;
}

/* Component Specific Styles */
.marathon-card {
    transition: all 0.3s ease;
    cursor: pointer;
}

.marathon-card:hover {
    transform: scale(1.02);
}

.episode-counter {
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-weight: var(--font-weight-bold);
    font-size: 0.875rem;
}

.time-badge {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 0;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive Grid Adjustments */
@media (max-width: 1200px) {
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}

@media (max-width: 992px) {
    .row {
        margin-left: -var(--spacing-sm);
        margin-right: -var(--spacing-sm);
    }
    
    .row > * {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }
}

/* Theme Toggle Animation */
.theme-toggle-icon {
    transition: transform 0.3s ease;
}

.theme-toggle-icon.rotating {
    transform: rotate(180deg);
}