/* =========================================
   COURSES PAGE — Premium Styles
   ========================================= */

/* Page Hero */
.courses-hero {
    padding-top: 120px;
    padding-bottom: 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.courses-hero .section-title {
    margin-bottom: 0.6rem;
}

/* Search Bar */
.hero-search {
    max-width: 640px;
    margin: 1.8rem auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
}

.search-input-wrap {
    display: flex;
    align-items: center;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    padding: 0.35rem 0.4rem 0.35rem 1.3rem;
    transition: var(--transition);
}

.search-input-wrap:focus-within {
    border-color: var(--gold-primary);
    box-shadow: 0 0 20px rgba(245, 166, 35, 0.15);
}

.search-icon {
    flex-shrink: 0;
    color: var(--text-muted);
    opacity: 0.6;
}

.search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-white);
    font-size: 0.92rem;
    font-family: inherit;
    padding: 0.6rem 0.8rem;
}

.search-input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.search-btn {
    padding: 0.6rem 1.6rem;
    border: none;
    border-radius: var(--radius-full);
    background: var(--gold-gradient);
    color: var(--navy-800);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.search-btn:hover {
    box-shadow: 0 4px 18px rgba(245, 166, 35, 0.4);
    transform: translateY(-1px);
}

.search-count {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}

[dir="rtl"] .search-input-wrap {
    padding: 0.35rem 1.3rem 0.35rem 0.4rem;
}

/* Toolbar */
.courses-toolbar {
    position: relative;
    z-index: 2;
    padding: 1rem 0 0;
}

.toolbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    gap: 1rem;
    flex-wrap: wrap;
}

.toolbar-filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

/* Sort Dropdown */
.sort-dropdown {
    position: relative;
}

.sort-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.sort-btn:hover {
    background: rgba(245, 166, 35, 0.12);
    border-color: var(--gold-primary);
}

.sort-btn svg {
    transition: transform 0.3s ease;
}

.sort-dropdown.open .sort-btn svg {
    transform: rotate(180deg);
}

.sort-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 200px;
    background: rgba(15, 30, 60, 0.97);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    overflow: hidden;
}

[dir="rtl"] .sort-menu {
    left: auto;
    right: 0;
}

.sort-dropdown.open .sort-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sort-menu-title {
    padding: 0.7rem 1.2rem 0.4rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sort-option {
    padding: 0.65rem 1.2rem;
    font-size: 0.88rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.sort-option:hover {
    background: rgba(245, 166, 35, 0.1);
    color: var(--text-white);
}

.sort-option.active {
    background: rgba(245, 166, 35, 0.18);
    color: var(--gold-light);
    font-weight: 600;
}

.filter-chip {
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.filter-chip:hover {
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.08);
}

.filter-chip.active {
    background: rgba(245, 166, 35, 0.15);
    color: var(--gold-light);
    border-color: rgba(245, 166, 35, 0.3);
}

.toolbar-view {
    display: flex;
    gap: 0.4rem;
}

.view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.view-btn:hover {
    color: var(--text-white);
}

.view-btn.active {
    background: rgba(245, 166, 35, 0.15);
    color: var(--gold-light);
    border-color: rgba(245, 166, 35, 0.3);
}

/* Layout */
.courses-main {
    position: relative;
    z-index: 1;
    padding: 2rem 0 4rem;
}

.courses-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 2rem;
    align-items: start;
}

/* Sidebar */
.courses-sidebar {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    position: sticky;
    top: 90px;
}

.sidebar-section {
    margin-bottom: 1.8rem;
}

.sidebar-section:last-of-type {
    margin-bottom: 1.5rem;
}

.sidebar-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.sidebar-line {
    flex: 1;
    height: 2px;
    background: var(--gold-gradient);
    border-radius: 2px;
}

.sidebar-check {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.5rem 0;
    font-size: 0.88rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-check:hover {
    color: var(--text-light);
}

.sidebar-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--gold-primary);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
}

.sidebar-apply {
    margin-top: 0.5rem;
}

/* Course Cards Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

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

.courses-grid.list-view .course-card {
    display: grid;
    grid-template-columns: 200px 1fr;
}

.courses-grid.list-view .course-img-wrap {
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    height: 100%;
}

.courses-grid.list-view .course-img {
    height: 100%;
    object-fit: cover;
}

/* Course Card */
.course-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

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

.course-img-wrap {
    position: relative;
    overflow: hidden;
    background: var(--navy-600);
    height: 220px;
}

.course-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.course-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 0.3rem 0.9rem;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

[dir="rtl"] .course-badge {
    left: auto;
    right: 12px;
}

.badge-completed {
    background: rgba(245, 166, 35, 0.2);
    color: var(--gold-light);
    border: 1px solid rgba(245, 166, 35, 0.3);
}

.badge-upcoming {
    background: rgba(46, 213, 115, 0.15);
    color: var(--success);
    border: 1px solid rgba(46, 213, 115, 0.3);
}

.badge-new {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
    border: 1px solid rgba(102, 126, 234, 0.3);
}

.course-notify {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(15, 36, 71, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

[dir="rtl"] .course-notify {
    right: auto;
    left: 12px;
}

.course-notify:hover {
    background: rgba(245, 166, 35, 0.2);
    color: var(--gold-light);
    border-color: var(--gold-primary);
}

.course-body {
    padding: 1.3rem 1.5rem 1.5rem;
}

.course-instructor {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
}

.instructor-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.course-instructor span {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.course-level {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.3rem;
}

.course-diploma {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.course-diploma strong {
    color: var(--gold-primary);
    font-weight: 600;
}

.course-meta {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
    margin-bottom: 1.2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.meta-item svg {
    flex-shrink: 0;
    opacity: 0.6;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.course-price {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-white);
}

.btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.82rem;
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1024px) {
    .courses-layout {
        grid-template-columns: 220px 1fr;
    }
}

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

    .courses-sidebar {
        position: static;
        order: -1;
    }

    .courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .courses-grid.list-view .course-card {
        grid-template-columns: 1fr;
    }

    .courses-grid.list-view .course-img-wrap {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        height: 200px;
    }

    .toolbar-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .toolbar-view {
        align-self: flex-end;
    }
}

@media (max-width: 480px) {
    .courses-grid {
        grid-template-columns: 1fr;
    }

    .filter-chip {
        padding: 0.4rem 0.8rem;
        font-size: 0.78rem;
    }
}