/**
 * Sheerxirfad Reseller Plugin - Modern Frontend Styles v3.0
 * Professional, Clean, and User-Friendly Design
 */

/* ==========================================================================
   1. Variables & Base Styles
   ========================================================================== */

:root {
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --success-color: #10B981;
    --success-hover: #059669;
    --danger-color: #EF4444;
    --warning-color: #F59E0B;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --border-color: #E5E7EB;
    --bg-gray: #F9FAFB;
    --bg-white: #FFFFFF;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   2. Course Catalog
   ========================================================================== */

.sheerxirfad-course-catalog {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Filters Section */
.catalog-filters {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.search-form {
    flex: 1;
    min-width: 250px;
    display: flex;
    gap: 0.5rem;
}

.search-form input[type="text"] {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: var(--transition);
}

.search-form input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.search-form button {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.search-form button:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.category-filter {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.category-filter label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.category-filter select {
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    cursor: pointer;
    background: white;
    transition: var(--transition);
    appearance: none;
    background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12"><path fill="%234B5563" d="M6 9L1 4h10z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
}

.category-filter select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Course Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Course Card */
.course-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.course-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.course-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.course-card:hover .course-image img {
    transform: scale(1.05);
}

.course-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.course-category {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
    width: fit-content;
}

.course-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-instructor {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0 0 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.course-instructor::before {
    content: "👨‍🏫";
    font-size: 1rem;
}

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

.course-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-success:hover {
    background: var(--success-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.btn-icon {
    font-size: 1.1rem;
}

/* No Courses Message */
.no-courses {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.pagination a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.pagination a:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.pagination a.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* ==========================================================================
   3. Single Course Page
   ========================================================================== */

.sheerxirfad-single-course {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.course-navigation {
    margin-bottom: 1.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.back-link:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateX(-4px);
}

.course-hero {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-xl);
}

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

.course-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 968px) {
    .course-content {
        grid-template-columns: 1fr;
    }

    .course-enroll-section {
        order: -1;
    }
}

.course-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 1rem 0;
    line-height: 1.2;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.course-meta .category,
.course-meta .instructor {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-gray);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.course-description {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ==========================================================================
   4. Enrollment Section
   ========================================================================== */

.course-enroll-section {
    position: sticky;
    top: 2rem;
}

.enrolled-status {
    background: linear-gradient(135deg, var(--success-color) 0%, var(--success-hover) 100%);
    color: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.status-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.enrolled-status h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.75rem;
    font-weight: 700;
}

.enrolled-status p {
    margin: 0 0 1.5rem 0;
    opacity: 0.9;
}

.enrolled-status .btn {
    width: 100%;
}

.enrollment-box {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.price-badge {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.price-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.price-amount {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

.enrollment-info {
    padding: 2rem;
}

.enrollment-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.75rem 0;
}

.enrollment-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Contact Methods */
.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-gray);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
}

.contact-method:hover {
    background: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.contact-method.whatsapp:hover {
    border-color: #25D366;
}

.contact-icon {
    font-size: 1.5rem;
    width: 2.5rem;
    height: 2.5rem;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-label {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.contact-value {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-left: auto;
}

/* Payment Notice */
.payment-notice {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: rgba(79, 70, 229, 0.05);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.notice-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.notice-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.notice-content strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.25rem;
}

.login-prompt {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 1.5rem 0 0 0;
    padding-top: 1.5rem;
    border-top: 2px solid var(--border-color);
}

.login-prompt a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.login-prompt a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   5. Student Dashboard
   ========================================================================== */

.sheerxirfad-student-dashboard {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.sheerxirfad-student-dashboard h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 1.5rem 0;
}

.enrolled-courses {
    display: grid;
    gap: 1.5rem;
}

.course-item {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 200px 1fr auto;
    gap: 1.5rem;
    align-items: center;
    transition: var(--transition);
}

.course-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .course-item {
        grid-template-columns: 1fr;
    }
}

.course-thumbnail {
    width: 200px;
    height: 120px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

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

.course-details h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.course-details .instructor {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0 0 1rem 0;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-gray);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color) 0%, var(--success-hover) 100%);
    border-radius: 999px;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin: 0;
}

.last-accessed {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0.5rem 0 0 0;
}

/* ==========================================================================
   6. Registration & Login Forms
   ========================================================================== */

.sheerxirfad-registration-form,
.sheerxirfad-login-form {
    max-width: 480px;
    margin: 2rem auto;
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.sheerxirfad-registration-form h2,
.sheerxirfad-login-form h2 {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 1.5rem 0;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group button {
    width: 100%;
}

.registration-message,
.enrollment-message {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-top: 1rem;
    font-weight: 600;
}

.registration-message.success,
.enrollment-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 2px solid var(--success-color);
}

.registration-message.error,
.enrollment-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border: 2px solid var(--danger-color);
}

.register-link,
.login-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
}

.register-link a,
.login-link a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.register-link a:hover,
.login-link a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   7. Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .catalog-filters {
        flex-direction: column;
        align-items: stretch;
    }

    .search-form {
        min-width: 100%;
    }

    .category-filter {
        flex-direction: column;
        align-items: stretch;
    }

    .course-title {
        font-size: 2rem;
    }

    .course-hero {
        height: 250px;
    }

    .price-amount {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .sheerxirfad-course-catalog,
    .sheerxirfad-single-course,
    .sheerxirfad-student-dashboard {
        padding: 1rem;
    }

    .course-card {
        border-radius: var(--radius-lg);
    }

    .sheerxirfad-registration-form,
    .sheerxirfad-login-form {
        padding: 1.5rem;
        margin: 1rem;
    }
}

/* ==========================================================================
   8. Accessibility & Print Styles
   ========================================================================== */

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

@media print {
    .catalog-filters,
    .btn,
    .pagination {
        display: none !important;
    }
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}