@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --bg-primary: #0B0F1A;
    --bg-secondary: #151B2E;
    --surface-1: rgba(255, 255, 255, 0.04);
    --surface-2: rgba(255, 255, 255, 0.06);
    --surface-3: rgba(255, 255, 255, 0.08);
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-tertiary: #64748B;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.12);
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    --gradient-primary: linear-gradient(135deg, #6366F1 0%, #A855F7 100%);
    --gradient-warning: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 30px 60px rgba(0, 0, 0, 0.3);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.demo-banner {
    background: var(--gradient-warning);
    padding: 12px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.demo-banner__content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: white;
    font-size: 14px;
    font-weight: 600;
}

.demo-banner__icon { flex-shrink: 0; }

.dashboard-layout {
    display: flex;
    height: calc(100vh - 48px);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.sidebar {
    width: 280px;
    background: var(--surface-1);
    backdrop-filter: blur(24px);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar-logo__text {
    font-size: 20px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-lg) var(--space-md);
}

.nav-section { margin-bottom: var(--space-xl); }

.nav-section__label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-tertiary);
    padding: 0 var(--space-md) var(--space-sm);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px var(--space-md);
    margin-bottom: var(--space-xs);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all var(--transition-base);
    position: relative;
}

.nav-item:hover {
    background: var(--surface-2);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(99, 102, 241, 0.12);
    color: var(--primary-light);
    font-weight: 600;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--gradient-primary);
    border-radius: 0 4px 4px 0;
}

.nav-item__icon { width: 20px; height: 20px; flex-shrink: 0; }
.nav-item__text { flex: 1; }

.nav-item__badge {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-light);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--surface-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.sidebar-user:hover { background: var(--surface-3); }

.sidebar-user__avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    color: white;
}

.sidebar-user__name { font-weight: 600; font-size: 14px; }
.sidebar-user__role { font-size: 12px; color: var(--text-tertiary); }

.dashboard-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.topbar {
    height: 72px;
    background: var(--surface-1);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

.topbar-left, .topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--surface-2);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.topbar-menu-toggle:hover {
    background: var(--surface-3);
    color: var(--text-primary);
}

.topbar-search { position: relative; width: 400px; }

.topbar-search__icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.topbar-search__input {
    width: 100%;
    height: 44px;
    padding: 0 16px 0 44px;
    background: var(--surface-2);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition-base);
}

.topbar-search__input::placeholder { color: var(--text-tertiary); }

.topbar-search__input:focus {
    outline: none;
    background: var(--surface-3);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.topbar-action {
    position: relative;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--surface-2);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.topbar-action:hover {
    background: var(--surface-3);
    color: var(--text-primary);
}

.topbar-action__badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 2px var(--bg-primary);
}

.topbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border-subtle);
}

.topbar-user__avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-medium);
    cursor: pointer;
    transition: all var(--transition-base);
}

.topbar-user__avatar:hover { border-color: var(--primary); }

.dashboard-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-xl);
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    gap: var(--space-lg);
}

.page-header__title {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-xs);
}

.page-header__subtitle {
    font-size: 15px;
    color: var(--text-secondary);
}

.page-header__actions {
    display: flex;
    gap: var(--space-sm);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    padding: 0 20px;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn--secondary {
    background: var(--surface-2);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.btn--secondary:hover { background: var(--surface-3); }

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.kpi-card {
    background: var(--surface-1);
    backdrop-filter: blur(24px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all 350ms cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(99, 102, 241, 0.3);
}

.kpi-card:hover::before { opacity: 1; }

.kpi-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.kpi-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kpi-card__icon--primary {
    background: rgba(99, 102, 241, 0.12);
    color: var(--primary-light);
}

.kpi-card__icon--success {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
}

.kpi-card__icon--warning {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
}

.kpi-card__icon--info {
    background: rgba(59, 130, 246, 0.12);
    color: var(--info);
}

.kpi-card__trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.kpi-card__trend--up {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
}

.kpi-card__trend--warning {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
}

.kpi-card__label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-sm);
}

.kpi-card__value {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-xs);
}

.kpi-card__change {
    font-size: 14px;
    color: var(--text-secondary);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

/* Featured Card (AetherFlow style) */
.demo-featured-card {
    background: var(--surface-1);
    backdrop-filter: blur(24px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.demo-featured-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.featured-card__header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.featured-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: rgba(99, 102, 241, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
}

.featured-card__title h3 {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.featured-card__title p {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.featured-card__stats {
    display: flex;
    gap: var(--space-lg);
    margin-left: auto;
}

.stat-mini {
    text-align: right;
}

.stat-mini__value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-mini__label {
    font-size: 12px;
    color: var(--text-tertiary);
}

.btn--sm {
    height: 36px;
    padding: 0 16px;
    font-size: 13px;
}

.featured-card__chart {
    height: 200px;
    position: relative;
}

/* Metric Cards (AetherFlow style) */
.metric-card {
    background: var(--surface-1);
    backdrop-filter: blur(24px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    transition: all 0.3s var(--transition-base);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    opacity: 0;
    transition: opacity 0.3s;
}

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

.metric-card:hover::before {
    opacity: 1;
}

.metric-card--blue::before {
    background: linear-gradient(90deg, #3B82F6, #60A5FA);
}

.metric-card--blue .metric-card__icon {
    background: rgba(59, 130, 246, 0.15);
    color: #60A5FA;
}

.metric-card--purple::before {
    background: linear-gradient(90deg, #A855F7, #C084FC);
}

.metric-card--purple .metric-card__icon {
    background: rgba(168, 85, 247, 0.15);
    color: #C084FC;
}

.metric-card--cyan::before {
    background: linear-gradient(90deg, #06B6D4, #22D3EE);
}

.metric-card--cyan .metric-card__icon {
    background: rgba(6, 182, 212, 0.15);
    color: #22D3EE;
}

.metric-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.metric-card__content h4 {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-tertiary);
    margin-bottom: 8px;
}

.metric-card__content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.metric-card__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-sm);
}

.metric-stat {
    display: flex;
    flex-direction: column;
}

.metric-stat__label {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.metric-stat__value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-card__desc {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Demo Gallery */
.demo-gallery {
    margin-top: var(--space-2xl);
}

.demo-gallery__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.demo-gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.demo-gallery__img {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--surface-2);
    transition: all 0.3s var(--transition-base);
    cursor: pointer;
}

.demo-gallery__img:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card {
    background: var(--surface-1);
    backdrop-filter: blur(24px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
}

.card-action {
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s;
}

.card-action:hover { color: var(--primary-dark); }

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    padding: 12px 0;
    font-size: 12px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-subtle);
}

.table td {
    padding: 16px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.table tr:last-child td { border-bottom: none; }

.product-name { font-weight: 600; }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.activity-list { display: flex; flex-direction: column; gap: var(--space-md); }

.activity-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.activity-item:last-child { border-bottom: none; }

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(99, 102, 241, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 20px;
}

.activity-content { flex: 1; }

.activity-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.activity-time {
    font-size: 13px;
    color: var(--text-tertiary);
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -280px;
        top: 48px;
        height: calc(100vh - 48px);
        z-index: 999;
        transition: left var(--transition-base);
    }

    .sidebar.open { left: 0; }

    .topbar-menu-toggle { display: flex; }
    .topbar-search { display: none; }
    .dashboard-content { padding: var(--space-lg); }
    .page-header { flex-direction: column; }
    .kpi-grid { grid-template-columns: 1fr; }
    .dashboard-grid { grid-template-columns: 1fr !important; }
    .card { grid-column: span 1 !important; }
}