/* STEMAura Student Dashboard — Components CSS */

/* Glassmorphism Cards & Panels */
.glass-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.glass-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.15);
}

[data-theme="light"] .glass-card {
    background: #ffffff !important;
    border-color: #e2e8f0 !important;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.05) !important;
}

/* Professional Tab Segmented Controls */
.profile-tabs-nav {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    padding: 6px;
    border-radius: var(--radius-full);
    margin-bottom: 1.75rem;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
    flex-wrap: wrap;
}

.profile-tab-btn, .tab-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.65rem 1.35rem;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    border: 1.5px solid transparent;
    background: transparent;
    color: var(--text-muted);
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    outline: none;
}

.profile-tab-btn:hover, .tab-btn:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.08);
}

.profile-tab-btn.active, .tab-btn.active {
    background: var(--accent-primary) !important;
    color: #ffffff !important;
    border-color: var(--accent-primary) !important;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35) !important;
}

[data-theme="light"] .profile-tabs-nav {
    background: #f1f5f9 !important;
    border-color: #e2e8f0 !important;
}

[data-theme="light"] .tab-btn {
    color: #475569 !important;
}

[data-theme="light"] .tab-btn:hover {
    color: #0f172a !important;
    background: rgba(99, 102, 241, 0.1) !important;
}

[data-theme="light"] .tab-btn.active {
    background: var(--accent-primary) !important;
    color: #ffffff !important;
}

/* Tab Content Panes */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block !important;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--anim-speed) var(--anim-easing);
    user-select: none;
    text-align: center;
}

a.btn, button.btn, .btn {
    text-decoration: none !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
    cursor: pointer;
    border-radius: 10px;
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

a.btn-primary, button.btn-primary, .btn-primary {
    background: linear-gradient(135deg, #4f46e5, #6366f1) !important;
    color: #ffffff !important;
    border: none !important;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35) !important;
}

a.btn-primary:hover, button.btn-primary:hover, .btn-primary:hover {
    background: linear-gradient(135deg, #4338ca, #4f46e5) !important;
    color: #ffffff !important;
    transform: translateY(-2px) scale(1.02) !important;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.45) !important;
}

a.btn-primary:active, button.btn-primary:active, .btn-primary:active {
    transform: translateY(0) scale(0.98) !important;
    color: #ffffff !important;
}

a.btn-secondary, button.btn-secondary, .btn-secondary {
    background: var(--bg-panel);
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color);
}

a.btn-secondary:hover, button.btn-secondary:hover, .btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary) !important;
    transform: translateY(-2px);
}

a.btn-success, button.btn-success, .btn-success {
    background: linear-gradient(135deg, #10b981, #059669) !important;
    color: #ffffff !important;
    border: none !important;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35) !important;
}

a.btn-success:hover, button.btn-success:hover, .btn-success:hover {
    background: linear-gradient(135deg, #059669, #047857) !important;
    color: #ffffff !important;
    transform: translateY(-2px) scale(1.02) !important;
}

a.btn-danger, button.btn-danger, .btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626) !important;
    color: #ffffff !important;
    border: none !important;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35) !important;
}

a.btn-danger:hover, button.btn-danger:hover, .btn-danger:hover {
    background: linear-gradient(135deg, #dc2626, #b91c1c) !important;
    color: #ffffff !important;
    transform: translateY(-2px) scale(1.02) !important;
}

.btn-accent {
    background: var(--color-accent);
    color: #0f172a !important;
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.btn-accent:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
    color: #0f172a !important;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted) !important;
}

.btn-ghost:hover {
    color: var(--color-text) !important;
    background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
    padding: 0.4rem 0.9rem;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Forms & Inputs */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-select option {
    background: var(--color-surface);
    color: var(--color-text);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--color-primary-glow);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.badge-accent {
    background: var(--color-accent-glow);
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.badge-success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

/* Interest Select Chips */
.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.chip {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.88rem;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.chip:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
}

.chip.selected {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    color: var(--color-text);
    font-weight: 600;
}

/* Avatar Selection Grid */
.avatar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 1rem;
}

.avatar-option {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    overflow: hidden;
}

.avatar-option img, .avatar-option svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-option:hover {
    border-color: var(--color-accent);
    transform: scale(1.08);
}

.avatar-option.selected {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-glow);
    transform: scale(1.1);
}

/* Wizard Steps Bar */
.wizard-steps {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.wizard-steps::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 3px;
    background: var(--color-border);
    z-index: 1;
    transform: translateY(-50%);
}

.wizard-progress-bar {
    position: absolute;
    top: 50%;
    left: 10%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    z-index: 2;
    transform: translateY(-50%);
    transition: width 0.4s ease;
}

.step-node {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    z-index: 3;
    transition: all 0.3s ease;
}

.step-node.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--shadow-glow);
    transform: scale(1.15);
}

/* ==========================================================================
   ULTRA-PREMIUM WIDE COURSE CARDS & GRID
   ========================================================================== */
.courses-grid, .enrolled-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)) !important;
    gap: 1.75rem !important;
}

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

.course-card {
    background: var(--bg-panel) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 20px !important;
    overflow: hidden !important;
    padding: 0 !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05) !important;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    display: flex !important;
    flex-direction: column !important;
    position: relative !important;
}

.course-card:hover {
    transform: translateY(-8px) scale(1.015) !important;
    border-color: var(--accent-primary) !important;
    box-shadow: 0 20px 45px rgba(99, 102, 241, 0.2) !important;
}

[data-theme="light"] .course-card {
    background: #ffffff !important;
    border-color: #e2e8f0 !important;
    box-shadow: 0 10px 35px rgba(15, 23, 42, 0.06) !important;
}

[data-theme="light"] .course-card:hover {
    border-color: #6366f1 !important;
    box-shadow: 0 22px 50px rgba(99, 102, 241, 0.22) !important;
}

.course-card-thumb {
    width: 100%;
    height: 210px;
    position: relative;
    overflow: hidden;
    background: #0f172a;
}

.course-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.course-card:hover .course-card-thumb img {
    transform: scale(1.08);
}

.course-card-thumb-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.25) 50%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

.course-card-body {
    padding: 1.5rem 1.6rem 1.25rem !important;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.course-meta-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.course-card-title {
    font-size: 1.22rem !important;
    font-weight: 800 !important;
    color: var(--text-primary) !important;
    line-height: 1.35 !important;
    margin-bottom: 0.5rem !important;
    letter-spacing: -0.3px !important;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-card-desc {
    font-size: 0.9rem !important;
    color: var(--text-muted) !important;
    line-height: 1.55 !important;
    margin-bottom: 1.25rem !important;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

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

.course-card-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-primary);
    transition: transform 0.2s ease, color 0.2s ease;
}

.course-card:hover .course-card-action-btn {
    transform: translateX(4px);
    color: var(--accent-hover);
}

.step-node.completed {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: #0f172a;
}

/* ══════════════════════════════════════════════════════════════════════════════
   RESPONSIVE TOP NAVBAR & BREADCRUMB MENU SYSTEM
   ══════════════════════════════════════════════════════════════════════════════ */

.responsive-top-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0.65rem 1.25rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    gap: 12px;
    position: relative;
    z-index: 100;
}

.responsive-nav-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    flex: 1;
}

.mobile-sidebar-toggle-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.mobile-sidebar-toggle-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
    transform: scale(1.05);
}

.responsive-breadcrumb-container {
    display: flex;
    align-items: center;
    min-width: 0;
    flex: 1;
    overflow: hidden;
    position: relative;
}

.responsive-breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--text-muted);
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 3px 0;
    max-width: 100%;
}
.responsive-breadcrumb-nav::-webkit-scrollbar {
    display: none;
}

.breadcrumb-item-link {
    color: var(--text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
}
.breadcrumb-item-link:hover {
    color: var(--accent-primary);
    background: var(--bg-hover);
}

.breadcrumb-separator {
    font-size: 0.65rem;
    color: var(--text-muted);
    opacity: 0.6;
}

.breadcrumb-dropdown-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.breadcrumb-menu-trigger {
    cursor: pointer;
    border: 1px solid rgba(99, 102, 241, 0.25);
    background: rgba(99, 102, 241, 0.09);
    color: var(--text-primary);
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.82rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    user-select: none;
}

.breadcrumb-menu-trigger:hover {
    background: rgba(99, 102, 241, 0.18);
    border-color: var(--accent-primary);
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.2);
}

.breadcrumb-dropdown-arrow {
    font-size: 0.65rem;
    color: var(--accent-primary);
    transition: transform 0.2s ease;
    margin-left: 2px;
}

.breadcrumb-dropdown-wrap.open .breadcrumb-dropdown-arrow {
    transform: rotate(180deg);
}

.breadcrumb-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 230px;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(99, 102, 241, 0.12);
    padding: 6px;
    z-index: 1000;
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
    pointer-events: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(16px);
}

.breadcrumb-dropdown-wrap.open .breadcrumb-dropdown-menu {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.breadcrumb-menu-header {
    padding: 8px 12px 6px;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--text-muted);
    letter-spacing: 0.6px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 9px;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s ease;
}

.breadcrumb-menu-item i {
    width: 18px;
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.breadcrumb-menu-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.breadcrumb-menu-item:hover i {
    color: var(--accent-primary);
}

.breadcrumb-menu-item.active {
    background: rgba(99, 102, 241, 0.12);
    color: var(--accent-primary);
    font-weight: 800;
}

.breadcrumb-menu-item.active i {
    color: var(--accent-primary);
}

.breadcrumb-menu-item.highlight {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(168, 85, 247, 0.12));
    border: 1px dashed rgba(99, 102, 241, 0.35);
    color: var(--accent-primary);
    font-weight: 700;
    margin: 3px 0;
}

.responsive-nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.responsive-nav-btn {
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}
.responsive-nav-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-1px);
}

/* Mobile Sidebar Drawer Overlay */
#mobile-sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(6px);
    z-index: 99998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
#mobile-sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.mobile-sidebar-close-btn {
    display: none;
    position: absolute;
    top: 14px;
    right: 14px;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    z-index: 10;
}
.mobile-sidebar-close-btn:hover {
    background: #ef4444;
    border-color: #ef4444;
    color: #ffffff;
}

@media (max-width: 992px) {
    .mobile-sidebar-toggle-btn {
        display: flex !important;
    }
    .mobile-sidebar-close-btn {
        display: flex !important;
    }
    .admin-sidebar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        width: 280px !important;
        max-width: 85vw !important;
        height: 100vh !important;
        z-index: 99999 !important;
        transform: translateX(-100%) !important;
        transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }
    .admin-sidebar.mobile-sidebar-open {
        transform: translateX(0) !important;
        box-shadow: 15px 0 45px rgba(0, 0, 0, 0.4) !important;
    }
    .responsive-top-navbar {
        position: sticky;
        top: 10px;
        z-index: 990;
        backdrop-filter: blur(12px);
        background: rgba(var(--bg-panel-rgb, 255, 255, 255), 0.92);
        padding: 0.6rem 0.9rem;
    }
}

@media (max-width: 768px) {
    .responsive-top-navbar {
        padding: 0.5rem 0.85rem;
        margin-bottom: 1rem;
        border-radius: 12px;
        gap: 8px;
    }

    .responsive-nav-left {
        gap: 8px;
    }

    .breadcrumb-current-label {
        max-width: 130px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .breadcrumb-item-link .breadcrumb-home-text {
        display: none;
    }

    .breadcrumb-menu-trigger {
        padding: 4px 9px;
        font-size: 0.78rem;
    }

    .breadcrumb-dropdown-menu {
        left: -20px;
        min-width: 215px;
    }
}

@media (max-width: 480px) {
    .breadcrumb-current-label {
        max-width: 95px;
    }
    .responsive-nav-btn {
        width: 34px;
        height: 34px;
        font-size: 0.85rem;
    }
    .mobile-sidebar-toggle-btn {
        width: 34px;
        height: 34px;
        font-size: 0.95rem;
    }
}