:root {
    --primary: #00eabf;
    --primary-dark: #00c9a3;
    --bg-dark: #0a0a0f;
    --bg-card: #111118;
    --bg-hover: #1a1a24;
    --text-primary: #ffffff;
    --text-secondary: #8b8b9e;
    --border: #2a2a3a;
    --success: #00eabf;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

#app {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 240px;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px 0;
    position: fixed;
    height: 100vh;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, #00d4aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    list-style: none;
    padding: 0 12px;
    flex: 1;
}

.nav-links li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    margin-bottom: 4px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.nav-links li:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-links li.active {
    background: rgba(0, 234, 191, 0.1);
    color: var(--primary);
}

.nav-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 240px;
    padding: 24px 32px;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.search-bar {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 4px;
    width: 400px;
}

.search-bar input {
    flex: 1;
    background: none;
    border: none;
    padding: 10px 16px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}

.search-bar input::placeholder {
    color: var(--text-secondary);
}

.search-btn {
    background: var(--primary);
    border: none;
    padding: 10px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

/* Pages */
.page {
    display: none;
}

.page.active {
    display: block;
}

h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
}

h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

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

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.card.full-width {
    grid-column: 1 / -1;
}

/* Activity List */
.activity-list {
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

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

.activity-image {
    width: 80px;
    height: 60px;
    background: var(--bg-hover);
    border-radius: 8px;
    object-fit: cover;
}

.activity-content {
    flex: 1;
}

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

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

.activity-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    margin-left: 8px;
}

.badge-new {
    background: rgba(0, 234, 191, 0.2);
    color: var(--primary);
}

/* Markets List */
.markets-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.market-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-hover);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.market-item:hover {
    background: var(--border);
}

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

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

/* Campaigns Grid */
.campaigns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.campaign-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s;
}

.campaign-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.campaign-image {
    width: 100%;
    height: 180px;
    background: var(--bg-hover);
    object-fit: cover;
}

.campaign-info {
    padding: 16px;
}

.campaign-advertiser {
    font-weight: 600;
    margin-bottom: 4px;
}

.campaign-name {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.campaign-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* Table */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

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

.data-table th,
.data-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

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

.data-table tr:hover td {
    background: var(--bg-hover);
}

/* Filters */
.filters {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.filters select,
.filters input {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    min-width: 180px;
}

/* Vendors Grid */
.vendors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.vendor-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.2s;
}

.vendor-card:hover {
    border-color: var(--primary);
}

.vendor-name {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 8px;
}

.vendor-meta {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.vendor-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.tag {
    padding: 4px 10px;
    background: rgba(0, 234, 191, 0.1);
    color: var(--primary);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-close:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}