/* Swiss Minimalist Design System */

:root {
    --swiss-primary: #000;
    --swiss-secondary: #fff;
    --swiss-bg: #f9f9f9;
    --swiss-border: 1px solid #e5e5e5;
    --swiss-border-light: 1px solid #d0d0d0;
    --swiss-text-primary: #000;
    --swiss-text-secondary: #666;
    --swiss-text-tertiary: #999;
    --swiss-gap: 24px;
}

/* Base Styles */
.swiss-course-container,
.swiss-instructor-dashboard,
.swiss-student-dashboard {
    background: var(--swiss-bg);
    min-height: 100vh;
}

.swiss-dashboard-main,
.swiss-courses-grid {
    max-width: 1200px;
}

/* Header */
.swiss-header,
.swiss-header-section {
    background: white;
    border-bottom: var(--swiss-border);
    padding: 80px 40px;
    animation: fadeInDown 0.5s ease-out;
}

.swiss-header {
    text-align: center;
}

.swiss-header-content {
    max-width: 600px;
    margin: 0 auto;
}

.swiss-title,
.swiss-header-title h1 {
    font-size: 2.25rem;
    font-weight: 300;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    color: var(--swiss-text-primary);
}

.swiss-subtitle,
.swiss-header-title p {
    font-size: 1rem;
    font-weight: 400;
    color: var(--swiss-text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Filter Section */
.swiss-filters-section {
    background: white;
    border-bottom: var(--swiss-border);
    padding: 40px;
}

.swiss-filters {
    max-width: 1200px;
    margin: 0 auto;
}

.swiss-filter-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--swiss-gap);
    align-items: flex-end;
}

.swiss-filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.swiss-filter-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--swiss-text-secondary);
}

.swiss-select,
.swiss-input {
    padding: 10px 12px;
    border: var(--swiss-border-light);
    border-radius: 0;
    font-size: 0.95rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: white;
    transition: border-color 0.2s ease;
}

.swiss-select:focus,
.swiss-input:focus {
    outline: none;
    border-color: var(--swiss-primary);
}

.swiss-search {
    position: relative;
}

.swiss-search input {
    padding-right: 40px;
}

.swiss-search-btn {
    position: absolute;
    right: 12px;
    bottom: 10px;
    background: none;
    border: none;
    color: var(--swiss-text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    transition: color 0.2s ease;
}

.swiss-search-btn:hover {
    color: var(--swiss-primary);
}

.swiss-clear-btn {
    padding: 10px 12px;
    border: var(--swiss-border-light);
    background: white;
    color: var(--swiss-primary);
    text-decoration: none;
    text-align: center;
    border-radius: 0;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.swiss-clear-btn:hover {
    background: #f5f5f5;
    border-color: var(--swiss-primary);
}

/* Grid Layouts */
.swiss-courses-grid,
.swiss-stats-grid,
.swiss-content-grid,
.swiss-actions-grid {
    display: grid;
    gap: var(--swiss-gap);
}

.swiss-stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    margin-bottom: 48px;
}

.swiss-stat-card,
.swiss-course-card {
    background: white;
    border: var(--swiss-border);
    animation: fadeIn 0.4s ease-out;
}

.swiss-stat-card {
    padding: 24px;
    text-align: center;
    cursor: default;
}

.swiss-stat-number {
    font-size: 2rem;
    font-weight: 600;
    color: var(--swiss-text-primary);
    margin-bottom: 8px;
}

.swiss-stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--swiss-text-tertiary);
    font-weight: 500;
}

.swiss-content-grid {
    grid-template-columns: 1fr 300px;
    margin-bottom: 48px;
}

.swiss-section {
    background: white;
    border: var(--swiss-border);
    animation: fadeIn 0.4s ease-out;
}

.swiss-section-header {
    padding: 24px;
    border-bottom: var(--swiss-border);
}

.swiss-section-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
    color: var(--swiss-text-primary);
}

.swiss-section-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0;
    color: var(--swiss-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.swiss-section-body {
    padding: 24px;
}

/* Course Cards */
.swiss-course-card {
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.swiss-course-card:hover {
    border-color: var(--swiss-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.swiss-course-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #f5f5f5;
}

.swiss-course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiss-course-image.swiss-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    font-size: 3rem;
}

.swiss-course-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.swiss-course-meta {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.swiss-badge {
    padding: 4px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: var(--swiss-border-light);
    border-radius: 0;
    background: white;
}

.swiss-badge-dept {
    color: var(--swiss-text-secondary);
    border-color: #d0d0d0;
}

.swiss-badge-beginner {
    color: #15803d;
    border-color: #86efac;
    background: #f0fdf4;
}

.swiss-badge-intermediate {
    color: #b45309;
    border-color: #fcd34d;
    background: #fffbeb;
}

.swiss-badge-advanced {
    color: #7c2d12;
    border-color: #fed7aa;
    background: #fefce8;
}

.swiss-course-title,
.swiss-course-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--swiss-text-primary);
    line-height: 1.4;
}

.swiss-course-description {
    font-size: 0.9rem;
    color: var(--swiss-text-secondary);
    line-height: 1.6;
    margin-bottom: 18px;
    flex: 1;
}

.swiss-course-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: var(--swiss-border);
}

.swiss-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.swiss-stat-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--swiss-text-primary);
}

.swiss-stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--swiss-text-tertiary);
}

.swiss-course-link {
    color: var(--swiss-text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: gap 0.2s ease;
}

.swiss-course-link:hover {
    gap: 12px;
}

.swiss-arrow {
    transition: transform 0.2s ease;
}

.swiss-course-link:hover .swiss-arrow {
    transform: translateX(2px);
}

/* Progress Bars */
.swiss-progress-container,
.swiss-progress-bar {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.swiss-progress-bar {
    width: 100%;
    height: 6px;
    background: #e5e5e5;
    border: 1px solid #d0d0d0;
}

.swiss-progress-fill {
    height: 100%;
    background: var(--swiss-primary);
    transition: width 0.3s ease;
}

/* Empty States */
.swiss-empty,
.swiss-empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--swiss-text-tertiary);
}

.swiss-empty-state i {
    font-size: 3rem;
    color: #ccc;
    display: block;
    margin-bottom: 16px;
}

.swiss-empty-state h3 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--swiss-text-primary);
}

.swiss-empty-state p {
    color: var(--swiss-text-secondary);
    margin-bottom: 24px;
}

/* Buttons */
.swiss-btn,
.swiss-header-btn {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid var(--swiss-primary);
    background: var(--swiss-primary);
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border-radius: 0;
    cursor: pointer;
    white-space: nowrap;
}

.swiss-btn:hover,
.swiss-header-btn:hover {
    background: white;
    color: var(--swiss-primary);
}

.swiss-action-btn {
    padding: 10px 16px;
    border: var(--swiss-border-light);
    background: white;
    color: var(--swiss-text-primary);
    text-decoration: none;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: button;
}

.swiss-action-btn:hover {
    border-color: var(--swiss-primary);
    background: #f5f5f5;
}

/* Pagination */
.swiss-pagination {
    text-align: center;
    padding: 40px;
    background: white;
    border-top: var(--swiss-border);
}

.swiss-pagination-list {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.swiss-page-link {
    display: inline-block;
    padding: 8px 12px;
    border: var(--swiss-border-light);
    color: var(--swiss-text-primary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border-radius: 0;
}

.swiss-page-link:hover:not(.swiss-page-current) {
    border-color: var(--swiss-primary);
    background: #f5f5f5;
}

.swiss-page-current {
    border-color: var(--swiss-primary);
    background: var(--swiss-primary);
    color: white;
    cursor: default;
}

/* Tabs */
.swiss-tabs-nav {
    display: flex;
    border-bottom: var(--swiss-border);
    gap: 0;
    padding: 0 24px;
    flex-wrap: wrap;
}

.swiss-tab-link {
    flex: 1;
    min-width: 120px;
    padding: 16px 20px;
    border: none;
    background: none;
    color: var(--swiss-text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.swiss-tab-link:hover {
    color: var(--swiss-text-primary);
}

.swiss-tab-link.active {
    color: var(--swiss-text-primary);
    border-bottom-color: var(--swiss-primary);
}

.swiss-tabs-content {
    padding: 24px;
}

.swiss-tab-pane {
    display: none;
}

.swiss-tab-pane.active {
    display: block;
}

/* Sidebar */
.swiss-sidebar {
    flex-direction: column;
}

.swiss-sidebar .swiss-section {
    height: fit-content;
}

/* Responsive */
@media (max-width: 1024px) {
    .swiss-dashboard-main {
        padding: 30px;
    }

    .swiss-content-grid {
        grid-template-columns: 1fr;
    }

    .swiss-sidebar {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--swiss-gap);
    }
}

@media (max-width: 768px) {
    .swiss-header,
    .swiss-header-section {
        padding: 40px 20px;
    }

    .swiss-title,
    .swiss-header-title h1 {
        font-size: 1.8rem;
    }

    .swiss-course-container,
    .swiss-dashboard-main {
        padding: 20px;
    }

    .swiss-filter-form {
        grid-template-columns: 1fr;
    }

    .swiss-courses-grid {
        grid-template-columns: 1fr;
        padding: 40px 20px;
    }

    .swiss-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .swiss-tabs-nav {
        padding: 0;
    }

    .swiss-tab-link {
        flex: none;
        flex-basis: calc(50% - 0.5px);
        border-bottom: none;
        border-right: 1px solid #e5e5e5;
    }

    .swiss-tab-link:nth-child(even) {
        border-right: none;
    }

    .swiss-sidebar {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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