/* Custom CSS for AI Tracks Frontend */

/* Global Styles */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333 !important;
}

/* 確保所有一般文字元素都有正確的顏色 */
h1, h2, h3, h4, h5, h6, p, span, div, a, li, td, th {
    color: inherit;
}

/* 確保卡片內容文字可見 */
.card-title, .card-text, .card-subtitle {
    color: #333 !important;
}

/* 確保按鈕文字可見 */
.btn {
    color: inherit;
}

.btn-primary {
    color: #fff !important;
}

.btn-outline-primary {
    color: #007bff !important;
}

.btn-outline-primary:hover {
    color: #fff !important;
}

.btn-light {
    color: #333 !important;
}

.btn-outline-light {
    color: #fff !important;
}

.btn-outline-light:hover {
    color: #333 !important;
}

/* Header Styles */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

/* Hero Slider Section */
.hero-slider-section {
    position: relative;
}

.hero-slide {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    height: 550px;
    display: flex;
    align-items: center;
}

.hero-content-wrapper {
    min-height: 550px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-buttons {
    margin-top: 2rem;
}

.carousel-indicators {
    bottom: 30px;
    z-index: 3;
}

.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin: 0 5px;
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
}

.carousel-indicators button.active {
    background-color: #fff;
}

.carousel-control-prev,
.carousel-control-next {
    width: 5%;
    z-index: 3;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    width: 3rem;
    height: 3rem;
}

/* 移除舊的 min-vh-75 類別，因為已經不需要了 */

/* Card Styles */
.card {
    border-radius: 12px;
    transition: all 0.3s ease;
    border: none;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card-img-top {
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

/* Button Styles */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    padding: 0.5rem 1.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Section Styles */
section {
    position: relative;
}

.bg-light {
    background-color: #f8f9fa !important;
}

/* Typography */
.display-4, .display-5 {
    font-weight: 700;
    line-height: 1.2;
    color: inherit !important;
}

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

/* 確保標題文字可見 */
.display-4, .display-5, .display-6 {
    color: inherit !important;
}

/* 確保段落文字可見 */
.lead {
    color: inherit !important;
}

.text-muted {
    color: #6c757d !important;
}

.text-white {
    color: #fff !important;
}

/* Badge Styles */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
    border-radius: 6px;
    color: #fff !important;
}

.badge.bg-success {
    color: #fff !important;
}

.badge.bg-secondary {
    color: #fff !important;
}

/* Form Styles */
.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.15);
}

.form-select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
}

/* Modal Styles */
.modal-content {
    border-radius: 12px;
    border: none;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.modal-header {
    border-bottom: 1px solid #e9ecef;
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

/* Pagination Styles */
.pagination {
    justify-content: center;
}

.page-link {
    border-radius: 6px;
    margin: 0 2px;
    border: none;
    color: var(--primary-color);
    padding: 0.5rem 0.75rem;
}

.page-link:hover {
    background-color: var(--primary-color);
    color: white;
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Icon Styles */
.fa-2x {
    font-size: 2em;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .hero-slide {
        height: 100vh;
        min-height: 400px;
    }
    
    .hero-content-wrapper {
        min-height: 100vh;
        min-height: 400px;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

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

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Loading Spinner */
.spinner-border {
    width: 3rem;
    height: 3rem;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

/* Focus Styles for Accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .btn,
    .modal {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .card {
        border: 1px solid #ddd;
        box-shadow: none;
    }
}