a{
    text-decoration: none;
}
.dashboard-hero {
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, #047857 100%);
        padding: 4rem 0;
        position: relative;
        overflow: hidden;
        color: white;
        margin-top: -1rem;
        margin-bottom: 3rem;
}

.dashboard-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: heroFloat 15s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-5px) scale(1.01); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-greeting {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255,255,255,0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .hero-actions {
        flex-direction: row;
        justify-content: center;
    }
}

.btn-hero-action {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.btn-hero-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-hero-action:hover::before {
    left: 100%;
}

.btn-hero-action:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    background: rgba(255, 255, 255, 0.25);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.stat-card-revolutionary {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: statCardSlideIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.stat-card-revolutionary:nth-child(1) { animation-delay: 0.1s; }
.stat-card-revolutionary:nth-child(2) { animation-delay: 0.2s; }
.stat-card-revolutionary:nth-child(3) { animation-delay: 0.3s; }
.stat-card-revolutionary:nth-child(4) { animation-delay: 0.4s; }

@keyframes statCardSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.stat-card-revolutionary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-card-revolutionary:hover::before {
    transform: scaleX(1);
}

.stat-card-revolutionary:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.stat-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: grid;
    place-items: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    display: block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Activity Section */
.activity-section {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-bottom: 3rem;
}

.activity-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.activity-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.activity-tabs {
    display: flex;
    gap: 0.5rem;
    background: var(--background-light);
    border-radius: 12px;
    padding: 0.25rem;
}

.activity-tab {
    background: transparent;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.activity-tab.active {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.activity-tab:hover {
    background: var(--card-bg);
    color: white;
    transform: translateY(-1px);
}

.activity-content {
    position: relative;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: 16px;
    background: var(--background-light);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.activity-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    background: var(--card-bg);
}

.activity-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.activity-info {
    flex: 1;
}

.activity-info h6 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.activity-meta {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.activity-status {
    flex-shrink: 0;
}

.status-badge {
    padding: 0.375rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.status-warning {
    background: var(--warning-color);
    color: white;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.empty-description {
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* Quick Actions */
.quick-actions {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    border-radius: 24px;
    padding: 3rem;
    color: white;
    margin-bottom: 3rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    border: 1px solid rgba(255,255,255,0.15);
}

.quick-actions h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.quick-action-card {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    color: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.quick-action-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.18);
    box-shadow: 0 24px 48px rgba(0,0,0,0.25);
    border-color: rgba(255,255,255,0.35);
}

.quick-action-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    text-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.quick-action-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.quick-action-description {
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.5;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-hero {
        padding: 2rem 0;
        margin-bottom: 2rem;
    }

    .hero-greeting {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat-card-revolutionary {
        padding: 2rem;
    }

    .activity-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .activity-tabs {
        width: 100%;
        justify-content: center;
    }

    .activity-title {
        font-size: 1.5rem;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 1200px) {
    .dashboard-main {
        grid-template-columns: 2fr 1fr;
    }
}

/* Activity Section */
.activity-section {
    background: var(--card-bg);
    border-radius: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.activity-header {
    padding: 2rem 2rem 0;
    border-bottom: 1px solid var(--border-color);
}

.activity-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.activity-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.activity-tab {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 50px;
    padding: 0.5rem 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.activity-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.activity-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--card-bg);
}
}

.activity-item {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    border-radius: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    background: var(--background-color);
}

.activity-item:hover {
    transform: translateX(8px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.activity-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.activity-info h6 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.activity-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.activity-status {
    margin-left: auto;
    flex-shrink: 0;
}

.status-badge {
    padding: 0.375rem 0.875rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.status-primary {
    background: rgba(16, 185, 129, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Sidebar */
.dashboard-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-card {
    background: var(--card-bg);
    border-radius: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.sidebar-card:nth-child(1) { animation-delay: 0.2s; }
.sidebar-card:nth-child(2) { animation-delay: 0.4s; }

.sidebar-header {
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-content {
    padding: 1rem 2rem 2rem;
}

.action-button {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    background: var(--background-color);
    margin-bottom: 0.75rem;
}

.action-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.action-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.action-info h6 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0 0 0.25rem 0;
}

.action-info small {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* Quiz Results */
.quiz-result-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-radius: 12px;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    margin-bottom: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.quiz-result-item:hover {
    transform: translateX(4px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.quiz-info h6 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.quiz-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.quiz-score {
    font-size: 1.5rem;
    font-weight: 800;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    min-width: 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-description {
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

/* Dark mode adjustments */
[data-theme="dark"] .dashboard-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
}

[data-theme="dark"] .btn-hero-action {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .btn-hero-action:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-hero {
        padding: 3rem 1rem;
    }

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

    .hero-actions {
        flex-direction: column;
    }

    .activity-tabs {
        flex-wrap: wrap;
    }

    .activity-tab {
        flex: 1;
        min-width: 120px;
        text-align: center;
    }
}