/* Meta Ad Manager - Complete Style Sheet */

:root {
    --meta-blue: #1877F2;
    --meta-blue-dark: #166FE5;
    --meta-blue-light: #E7F3FF;
    --text-primary: #050505;
    --text-secondary: #65676B;
    --text-tertiary: #8A8D91;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F2F3F5;
    --bg-tertiary: #E4E6EB;
    --border-color: #CCD0D5;
    --border-light: #E4E6EB;
    --success: #42B72A;
    --warning: #F02849;
    --error: #F02849;
    --sidebar-width: 240px;
    --top-nav-height: 60px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.5;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-box {
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 40px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.1);
}

.login-header {
    text-align: center;
    margin-bottom: 24px;
}

.meta-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
    font-weight: 600;
    font-size: 20px;
    color: var(--meta-blue);
}

.login-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 16px;
}

.login-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 13px;
}

.login-form input[type="email"],
.login-form input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 15px;
    transition: border-color 0.2s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--meta-blue);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 13px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    cursor: pointer;
}

.forgot-link {
    color: var(--meta-blue);
    text-decoration: none;
}

.forgot-link:hover {
    text-decoration: underline;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    font-size: 13px;
    color: var(--text-secondary);
}

.login-footer a {
    color: var(--meta-blue);
    text-decoration: none;
    font-weight: 500;
}

.login-footer a:hover {
    text-decoration: underline;
}

.alert {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.alert-error {
    background-color: #FFF4F4;
    color: var(--error);
    border: 1px solid #FFE0E0;
}

/* Main App Layout */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Navigation */
.top-nav {
    height: var(--top-nav-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.top-nav-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.meta-logo-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 16px;
    color: var(--meta-blue);
}

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

.search-box i {
    position: absolute;
    left: 12px;
    color: var(--text-tertiary);
    font-size: 14px;
}

.search-box input {
    width: 300px;
    padding: 8px 12px 8px 36px;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    background: var(--bg-secondary);
    font-size: 14px;
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    background: var(--bg-primary);
    border-color: var(--meta-blue);
    width: 400px;
}

.top-nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-icon-btn {
    position: relative;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.nav-icon-btn:hover {
    background: var(--bg-tertiary);
}

.nav-icon-btn .badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--error);
    color: white;
    font-size: 10px;
    padding: 2px 5px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    border-radius: 20px;
    cursor: pointer;
    transition: background 0.2s;
    position: relative;
}

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

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--meta-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.user-name {
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary);
}

.user-menu i {
    font-size: 12px;
    color: var(--text-tertiary);
}

.user-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    min-width: 180px;
    padding: 8px 0;
}

.user-menu:hover .user-dropdown {
    display: block;
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
}

.user-dropdown a:hover {
    background: var(--bg-secondary);
}

.user-dropdown a i {
    width: 16px;
    color: var(--text-tertiary);
}

/* Main Layout */
.main-layout {
    display: flex;
    flex: 1;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-primary);
    border-right: 1px solid var(--border-light);
    height: calc(100vh - var(--top-nav-height));
    position: sticky;
    top: var(--top-nav-height);
    overflow-y: auto;
}

.sidebar-nav {
    padding: 8px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
    border-left: 3px solid transparent;
}

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

.nav-item.active {
    background: var(--meta-blue-light);
    border-left-color: var(--meta-blue);
    color: var(--meta-blue);
    font-weight: 500;
}

.nav-item i {
    width: 20px;
    font-size: 16px;
    text-align: center;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.page-title-section h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

.page-actions {
    display: flex;
    gap: 8px;
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--meta-blue);
    color: white;
}

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

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-large {
    padding: 12px 24px;
    font-size: 15px;
}

/* Date Range Picker */
.date-range-section {
    margin-bottom: 24px;
}

.date-range-picker {
    display: flex;
    gap: 8px;
}

.date-btn {
    padding: 8px 16px;
    border: 1px solid var(--border-light);
    background: var(--bg-primary);
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.date-btn:hover {
    background: var(--bg-secondary);
}

.date-btn.active {
    background: var(--meta-blue);
    color: white;
    border-color: var(--meta-blue);
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 16px;
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.stat-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.stat-change {
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

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

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

/* Content Sections */
.content-section {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.section-actions {
    display: flex;
    gap: 8px;
}

.link-primary {
    color: var(--meta-blue);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.link-primary:hover {
    text-decoration: underline;
}

/* Chart Container */
.chart-container {
    height: 300px;
    position: relative;
}

/* Data Table */
.table-container {
    overflow-x: auto;
}

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

.data-table thead {
    background: var(--bg-secondary);
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
}

.data-table tbody tr {
    transition: background 0.2s;
}

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

.campaign-name {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.campaign-name strong {
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Badges */
.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge-active {
    background: #E7F3FF;
    color: var(--meta-blue);
}

.badge-paused {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 4px;
}

.icon-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all 0.2s;
}

.icon-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Select Input */
.select-input {
    padding: 6px 12px;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    background: var(--bg-primary);
    font-size: 14px;
    cursor: pointer;
}

.select-input:focus {
    outline: none;
    border-color: var(--meta-blue);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .search-box input {
        width: 200px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}