* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f5576c;
    --success-color: #43e97b;
    --danger-color: #ef4444;
    --warning-color: #fee140;
    --info-color: #4facfe;
    --dark-bg: #0a0e27;
    --sidebar-bg-color: #667eea;
    --card-bg: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --hover-bg: #f8f9ff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f7fa;
    color: var(--text-primary);
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transition: transform 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    box-shadow: 4px 0 20px rgba(102, 126, 234, 0.3);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-left: 4px solid #fee140;
    backdrop-filter: blur(10px);
}

.nav-item i {
    width: 20px;
    text-align: center;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

/* Top Bar */
.topbar {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 249, 255, 0.95));
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.2);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid rgba(102, 126, 234, 0.1);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-primary);
}

.topbar h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary);
}

.search-box input {
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 250px;
    font-size: 0.9rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.notifications {
    position: relative;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.notifications .badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: linear-gradient(135deg, #f5576c, #f093fb);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(245, 87, 108, 0.5);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.user-profile:hover {
    background: var(--hover-bg);
}

.profile-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.profile-name {
    font-weight: 500;
}

/* Dashboard Content */
.dashboard-content {
    padding: 2rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.25);
    border-color: rgba(102, 126, 234, 0.3);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.web-dev {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.stat-icon.design {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 10px 30px rgba(245, 87, 108, 0.4);
}

.stat-icon.video {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 10px 30px rgba(79, 172, 254, 0.4);
}

.stat-icon.clients {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    box-shadow: 0 10px 30px rgba(67, 233, 123, 0.4);
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-change {
    font-size: 0.85rem;
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--danger-color);
}

/* Charts Row */
.charts-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
    border: 2px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.chart-card:hover {
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
    transform: translateY(-5px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.chart-filter {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.85rem;
    background: white;
    cursor: pointer;
}

.chart-filter:focus {
    outline: none;
    border-color: var(--primary-color);
}

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.view-all:hover {
    gap: 0.75rem;
}

.chart-card canvas {
    max-height: 300px;
}

/* Content Row */
.content-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.projects-card,
.activity-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
    border: 2px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.projects-card:hover,
.activity-card:hover {
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
    transform: translateY(-5px);
}

.projects-list,
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project-item,
.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.project-item:hover {
    background: var(--hover-bg);
}

.project-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.project-icon.web {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.project-icon.design {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.project-icon.video {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.project-info {
    flex: 1;
}

.project-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.project-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.project-status {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.project-status.completed {
    background: #d1fae5;
    color: #065f46;
}

.project-status.in-progress {
    background: #dbeafe;
    color: #1e40af;
}

.project-status.pending {
    background: #fef3c7;
    color: #92400e;
}

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

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--hover-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.activity-info {
    flex: 1;
}

.activity-info h4 {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.activity-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.activity-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Skills Overview */
.skills-overview-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 249, 255, 0.95));
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
    border: 2px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.skills-overview-card:hover {
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
    transform: translateY(-5px);
}

.skills-grid-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category-dash h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

.skill-category-dash h4 i {
    color: var(--primary-color);
}

.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-bar-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.skill-bar-item span:first-child {
    min-width: 100px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.skill-bar-item span:last-child {
    min-width: 40px;
    text-align: right;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.bar {
    flex: 1;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f5576c 100%);
    border-radius: 4px;
    transition: width 1s ease;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.4);
}

/* Settings Section */
.settings-section {
    margin-top: 2rem;
}

.settings-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
    border: 2px solid rgba(102, 126, 234, 0.1);
}

.settings-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    margin-bottom: 2rem;
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.form-section:last-child {
    border-bottom: none;
}

.form-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    background: linear-gradient(90deg, #87ceeb 0%, #90ee90 33%, #ffff00 66%, #ff6b6b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 100%;
    animation: rgb-rainbow 3s linear infinite;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-group label,
.form-group-full label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-group label i,
.form-group-full label i {
    margin-right: 0.5rem;
    color: #667eea;
}

.form-group input,
.form-group-full input,
.form-group-full textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group-full input:focus,
.form-group-full textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group-full textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.btn-save,
.btn-reset {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.btn-save {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-save:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-reset {
    background: white;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-reset:hover {
    background: var(--hover-bg);
    border-color: #667eea;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 10000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid #43e97b;
}

.notification-success i {
    color: #43e97b;
}

.notification-info {
    border-left: 4px solid #667eea;
}

.notification-info i {
    color: #667eea;
}

.notification span {
    color: var(--text-primary);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .charts-row,
    .content-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .topbar-right {
        gap: 1rem;
    }

    .search-box input {
        width: 150px;
    }

    .profile-name {
        display: none;
    }

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

    .dashboard-content {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .search-box {
        display: none;
    }

    .charts-row {
        grid-template-columns: 1fr;
    }

    .chart-card canvas {
        max-height: 200px;
    }
}