/* ===== THEME VARIABLES ===== */
:root {
    --bg-primary: #fef7f6;
    --bg-card: #ffffff;
    --text-primary: #2c3e4e;
    --text-secondary: #5a6e82;
    --border-color: #f0e2e0;
    --accent: #c1121f;
    --accent-hover: #e63946;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 40px -12px rgba(0, 0, 0, 0.06);
    --radius: 24px;
    --input-bg: #fefaf9;
    --modal-overlay: rgba(0, 0, 0, 0.5);
    --toast-bg: #2e7d32;
    --toast-error: #c62828;
    --transition: 0.25s ease;
    --discount-bg: #e8f5e9;
    --discount-text: #2e7d32;
    --subscriber-bg: #e3f2fd;
    --subscriber-text: #1565c0;
}


.container {
    max-width: 1400px;
    width: 100%;
}


/* ===== PAGE HEADER ===== */
.page-header {
    margin: 1.5rem 0 2rem;
}

    .page-header h1 {
        font-size: 2rem;
        font-weight: 800;
        color: var(--accent);
        display: flex;
        align-items: center;
        gap: 12px;
    }

        .page-header h1 i {
            background: var(--accent);
            color: #fff;
            padding: 10px;
            border-radius: 14px;
            font-size: 1.4rem;
        }

    .page-header p {
        color: var(--text-secondary);
        margin-top: 0.3rem;
    }

/* ===== SEARCH FORM ===== */
.search-form {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    transition: background var(--transition), border-color var(--transition);
}

.search-form-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 1rem;
    align-items: end;
}

.search-form .form-group {
    margin-bottom: 0;
}

    .search-form .form-group label {
        display: block;
        font-weight: 600;
        font-size: 0.75rem;
        color: var(--text-secondary);
        margin-bottom: 0.3rem;
    }

    .search-form .form-group input,
    .search-form .form-group select {
        width: 100%;
        padding: 0.6rem 1rem;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        font-size: 0.85rem;
        font-family: 'Inter', sans-serif;
        transition: 0.2s;
        background: var(--input-bg);
        color: var(--text-primary);
    }

        .search-form .form-group input:focus,
        .search-form .form-group select:focus {
            outline: none;
            border-color: var(--accent-hover);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.08);
        }

        .search-form .form-group input::placeholder {
            color: var(--text-secondary);
            opacity: 0.6;
        }

.search-actions {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.btn-primary {
    background: var(--accent-hover);
    color: #fff;
    border: none;
    padding: 0.6rem 1.6rem;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    white-space: nowrap;
}

    .btn-primary:hover {
        background: var(--accent);
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(193, 18, 31, 0.2);
    }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 1.6rem;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

    .btn-outline:hover {
        border-color: var(--accent);
        background: var(--input-bg);
    }

.btn-small {
    padding: 0.4rem 1rem;
    font-size: 0.75rem;
}

/* ===== RESULTS COUNTER ===== */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.results-count {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

    .results-count strong {
        color: var(--accent);
    }

.sort-options {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

    .sort-options label {
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

    .sort-options select {
        padding: 0.3rem 0.8rem;
        border: 1px solid var(--border-color);
        border-radius: 30px;
        font-size: 0.8rem;
        background: var(--bg-card);
        color: var(--text-primary);
        font-family: 'Inter', sans-serif;
    }

/* ===== COURSE CARDS GRID ===== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.course-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: 0.25s ease;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

    .course-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        border-color: var(--accent-hover);
    }

.course-card-header {
    padding: 1.2rem 1.5rem 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

    .course-card-header h3 {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 0.2rem;
    }

    .course-card-header .course-meta {
        display: flex;
        gap: 0.8rem;
        flex-wrap: wrap;
        font-size: 0.75rem;
        color: var(--text-secondary);
    }

.course-card-body {
    padding: 1rem 1.5rem;
    flex: 1;
}

.instructor-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.8rem;
}

.instructor-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--input-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.instructor-details {
    flex: 1;
}

    .instructor-details .name {
        font-weight: 600;
        font-size: 0.9rem;
        color: var(--text-primary);
    }

    .instructor-details .qualification {
        font-size: 0.75rem;
        color: var(--text-secondary);
    }

    .instructor-details .experience {
        font-size: 0.7rem;
        color: var(--text-secondary);
    }

.course-stats {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 0.6rem 0;
}

    .course-stats .stat {
        display: flex;
        align-items: center;
        gap: 5px;
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

        .course-stats .stat i {
            color: var(--accent);
        }

.course-pricing {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.6rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: 0.5rem;
}

    .course-pricing .original-price {
        font-size: 1.1rem;
        font-weight: 600;
        color: var(--text-primary);
    }

    .course-pricing .discounted-price {
        font-size: 1.3rem;
        font-weight: 800;
        color: var(--accent);
    }

    .course-pricing .discount-badge {
        background: var(--discount-bg);
        color: var(--discount-text);
        padding: 0.15rem 0.6rem;
        border-radius: 20px;
        font-size: 0.7rem;
        font-weight: 700;
    }

.course-card-footer {
    padding: 1rem 1.5rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.subscriber-count {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--subscriber-bg);
    padding: 0.2rem 0.8rem;
    border-radius: 30px;
    color: var(--subscriber-text);
}

    .subscriber-count i {
        font-size: 0.8rem;
    }

.btn-enroll {
    background: var(--accent-hover);
    color: #fff;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

    .btn-enroll:hover {
        background: var(--accent);
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(193, 18, 31, 0.2);
    }

/* ===== PAGINATION ===== */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 0 2rem;
    flex-wrap: wrap;
}

.page-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.9rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: 0.2s;
    color: var(--text-secondary);
    font-weight: 500;
    font-family: 'Inter', sans-serif;
}

    .page-btn:hover:not(:disabled) {
        background: var(--input-bg);
        border-color: var(--accent);
        color: var(--accent);
    }

    .page-btn.active {
        background: var(--accent);
        color: #fff;
        border-color: var(--accent);
    }

    .page-btn:disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }

    .page-btn i {
        font-size: 0.7rem;
    }

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

    .empty-state i {
        font-size: 4rem;
        color: var(--border-color);
        margin-bottom: 1rem;
    }

    .empty-state h3 {
        font-size: 1.3rem;
        color: var(--text-primary);
        margin-bottom: 0.5rem;
    }

    .empty-state p {
        font-size: 0.95rem;
    }


/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .search-form-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 820px) {
    body {
        padding: 0;
    }

    .container {
        padding: 0 1.2rem;
    }

    .nav-container {
        flex-wrap: wrap;
        padding: 0.6rem 1rem;
    }

    .nav-links {
        order: 3;
        flex: 1 1 100%;
        justify-content: center;
        padding-top: 0.3rem;
    }

    .search-form {
        padding: 1rem 1.2rem;
    }

    .search-form-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .search-actions {
        flex-wrap: wrap;
    }

        .search-actions .btn-primary,
        .search-actions .btn-outline {
            flex: 1;
            justify-content: center;
        }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .course-card-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-enroll {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.8rem;
    }

    .search-form {
        padding: 0.8rem;
    }

    .results-header {
        flex-direction: column;
        align-items: stretch;
    }

    .course-pricing {
        flex-wrap: wrap;
    }

    .nav-links a {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }

    .logo-text {
        font-size: 1rem;
    }
}