/**
 * Meta Ads Manager - Professional UI
 * Facebook Business Manager inspired design - Enhanced
 */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Facebook BM Colors */
    --fb-blue: #1877f2;
    --fb-blue-dark: #166fe5;
    --fb-blue-light: #e7f3ff;
    --fb-gray-50: #f0f2f5;
    --fb-gray-100: #e4e6eb;
    --fb-gray-200: #dadde1;
    --fb-gray-300: #ccd0d5;
    --fb-gray-400: #b0b3b8;
    --fb-gray-500: #8a8d91;
    --fb-gray-600: #65676b;
    --fb-gray-700: #4e4f50;
    --fb-gray-800: #3a3b3c;
    --fb-gray-900: #242526;
    --white: #ffffff;
    --green: #42b72a;
    --red: #f02849;
    --orange: #f7b928;
    
    /* Status Colors */
    --status-active: #34a853;
    --status-disapproved: #ea4335;
    --status-inactive: #5f6368;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1877f2 0%, #166fe5 100%);
    --gradient-sidebar: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    --gradient-header: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
    
    /* Typography - Facebook BM Font Stack */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 14px;
    --font-size-sm: 12px;
    --font-size-lg: 16px;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--fb-gray-900);
    background: linear-gradient(135deg, #f0f2f5 0%, #e4e6eb 100%);
    background-attachment: fixed;
    line-height: 1.5;
}

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

/* Sidebar - Enhanced */
.sidebar {
    width: 260px;
    background: var(--gradient-sidebar);
    border-right: 1px solid var(--fb-gray-200);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    box-shadow: var(--shadow-md);
    z-index: 1000;
    top: 0;
    left: 0;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--fb-gray-300);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--fb-gray-400);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--fb-gray-200);
    background: var(--white);
}

.sidebar-header h2 {
    font-size: 22px;
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.sidebar-menu {
    list-style: none;
    padding: 12px 8px;
    flex: 1;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    color: var(--fb-gray-700);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: var(--font-weight-medium);
    border-radius: 8px;
    margin: 2px 0;
    position: relative;
}

.sidebar-menu li a svg {
    transition: transform 0.2s;
    flex-shrink: 0;
}

.sidebar-menu li a:hover {
    background: var(--fb-blue-light);
    color: var(--fb-blue);
    transform: translateX(4px);
}

.sidebar-menu li a:hover svg {
    transform: scale(1.1);
}

.sidebar-menu li a.active {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
    font-weight: var(--font-weight-semibold);
}

.sidebar-menu li a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: var(--white);
    border-radius: 0 4px 4px 0;
}

.sidebar-menu li a.active svg {
    filter: brightness(0) invert(1);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--fb-gray-200);
    background: var(--white);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--fb-gray-700);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
    font-weight: var(--font-weight-medium);
}

.logout-btn:hover {
    background: #fff5f5;
    color: var(--red);
    transform: translateX(4px);
}

.logout-btn svg {
    transition: transform 0.2s;
}

.logout-btn:hover svg {
    transform: scale(1.1);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.top-header {
    background: var(--gradient-header);
    border-bottom: 1px solid var(--fb-gray-200);
    padding: 20px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.header-left h1 {
    font-size: 28px;
    font-weight: var(--font-weight-bold);
    color: var(--fb-gray-900);
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--fb-gray-900) 0%, var(--fb-gray-700) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 12px 6px 6px;
    background: var(--fb-gray-50);
    border-radius: 24px;
    transition: all 0.3s;
}

.user-profile:hover {
    background: var(--fb-blue-light);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: 14px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.user-info {
    color: var(--fb-gray-700);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

/* Content Wrapper */
.content-wrapper {
    padding: 32px;
    flex: 1;
}

/* Buttons - Enhanced */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font-family);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--white);
    color: var(--fb-gray-900);
    border: 1px solid var(--fb-gray-300);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--fb-gray-50);
    border-color: var(--fb-gray-400);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Alerts - Enhanced */
.alert {
    padding: 16px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: var(--font-weight-medium);
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-sm);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-error {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
    border-left: 4px solid var(--red);
}

/* Ads Table - Enhanced */
.ads-table-container {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--fb-gray-200);
}

.table-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--fb-gray-200);
    background: var(--gradient-header);
}

.search-box {
    position: relative;
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    opacity: 0.5;
}

.search-box input {
    width: 100%;
    max-width: 450px;
    padding: 12px 16px 12px 42px;
    border: 2px solid var(--fb-gray-200);
    border-radius: 10px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all 0.3s;
    background: var(--white);
}

.search-box input:focus {
    outline: none;
    border-color: var(--fb-blue);
    box-shadow: 0 0 0 3px var(--fb-blue-light);
    transform: translateY(-1px);
}

.table-wrapper {
    overflow-x: auto;
}

.table-wrapper::-webkit-scrollbar {
    height: 8px;
}

.table-wrapper::-webkit-scrollbar-track {
    background: var(--fb-gray-100);
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: var(--fb-gray-300);
    border-radius: 4px;
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--fb-gray-400);
}

.ads-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-base);
}

.ads-table thead {
    background: linear-gradient(180deg, var(--fb-gray-50) 0%, var(--white) 100%);
    border-bottom: 2px solid var(--fb-gray-200);
}

.ads-table th {
    padding: 16px;
    text-align: left;
    font-weight: var(--font-weight-semibold);
    color: var(--fb-gray-700);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.ads-table td {
    padding: 18px 16px;
    border-bottom: 1px solid var(--fb-gray-100);
    vertical-align: middle;
    transition: all 0.2s;
}

.ads-table tbody tr {
    transition: all 0.2s;
}

.ads-table tbody tr:hover {
    background: var(--fb-blue-light);
    transform: scale(1.01);
    box-shadow: 0 2px 8px rgba(24, 119, 242, 0.1);
}

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

/* Status Toggle - Enhanced */
.status-toggle {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    min-width: 85px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.status-toggle.status-active {
    background: linear-gradient(135deg, var(--status-active) 0%, #2d8f47 100%);
    color: var(--white);
}

.status-toggle.status-disapproved {
    background: linear-gradient(135deg, var(--status-disapproved) 0%, #c62828 100%);
    color: var(--white);
}

.status-toggle.status-inactive {
    background: linear-gradient(135deg, var(--status-inactive) 0%, #424242 100%);
    color: var(--white);
}

/* Status Badge - Enhanced */
.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-sm);
}

.status-badge.status-active {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    color: var(--status-active);
    border: 1px solid rgba(52, 168, 83, 0.2);
}

.status-badge.status-disapproved {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%);
    color: var(--status-disapproved);
    border: 1px solid rgba(234, 67, 53, 0.2);
}

.status-badge.status-inactive {
    background: linear-gradient(135deg, var(--fb-gray-100) 0%, var(--fb-gray-200) 100%);
    color: var(--fb-gray-700);
    border: 1px solid var(--fb-gray-300);
}

/* Ad Thumbnail - Enhanced */
.ad-thumbnail {
    text-align: center;
}

.ad-thumbnail img {
    width: 90px;
    height: 90px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid var(--fb-gray-200);
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.ad-thumbnail img:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    border-color: var(--fb-blue);
}

.no-image {
    color: var(--fb-gray-400);
    font-size: var(--font-size-sm);
    padding: 20px;
    background: var(--fb-gray-50);
    border-radius: 8px;
    display: inline-block;
}

.ad-name {
    font-weight: var(--font-weight-semibold);
    max-width: 200px;
    word-wrap: break-word;
    color: var(--fb-gray-900);
}

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

.text-center {
    text-align: center;
}

.bid-strategy {
    font-weight: var(--font-weight-semibold);
    color: var(--fb-gray-900);
}

.bid-objective {
    color: var(--fb-gray-600);
    font-size: var(--font-size-sm);
}

/* Summary Row - Enhanced */
.summary-row {
    background: linear-gradient(135deg, var(--fb-gray-50) 0%, var(--white) 100%);
    font-weight: var(--font-weight-semibold);
}

.summary-row td {
    padding: 20px 16px;
    border-top: 2px solid var(--fb-gray-200);
    font-size: var(--font-size-lg);
}

/* Table Footer - Enhanced */
.table-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--fb-gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--gradient-header);
    font-size: var(--font-size-sm);
    color: var(--fb-gray-600);
}

/* Login Page - Enhanced */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: move 20s linear infinite;
}

@keyframes move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.login-box {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    padding: 40px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.login-header p {
    color: var(--fb-gray-600);
    font-size: var(--font-size-base);
}

.login-form {
    margin-top: 24px;
}

/* Forms - Enhanced */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: var(--font-weight-semibold);
    color: var(--fb-gray-700);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--fb-gray-200);
    border-radius: 10px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all 0.3s;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--fb-blue);
    box-shadow: 0 0 0 4px var(--fb-blue-light);
    transform: translateY(-2px);
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--fb-gray-500);
    font-size: var(--font-size-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Admin Sections - Enhanced */
.admin-section {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 32px;
    margin-bottom: 24px;
    border: 1px solid var(--fb-gray-200);
    transition: all 0.3s;
}

.admin-section:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

.section-header {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--fb-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.section-header h2 {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, var(--fb-gray-900) 0%, var(--fb-gray-700) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.form-card {
    margin-top: 24px;
}

.users-list {
    display: grid;
    gap: 24px;
    margin-top: 24px;
}

.user-card {
    border: 2px solid var(--fb-gray-200);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    background: var(--white);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.user-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--fb-blue);
}

.user-info h3 {
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    margin-bottom: 8px;
    color: var(--fb-gray-900);
}

.user-info p {
    color: var(--fb-gray-600);
    margin-bottom: 6px;
    font-size: var(--font-size-base);
}

.user-info small {
    color: var(--fb-gray-500);
    font-size: var(--font-size-sm);
    display: block;
    margin-top: 8px;
    padding: 6px 12px;
    background: var(--fb-gray-50);
    border-radius: 6px;
    display: inline-block;
}

.user-avatar-small {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: 18px;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.user-actions {
    flex: 1;
    max-width: 400px;
}

.assign-ads-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ads-select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--fb-gray-200);
    border-radius: 10px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    min-height: 140px;
    transition: all 0.3s;
    background: var(--white);
}

.ads-select:focus {
    outline: none;
    border-color: var(--fb-blue);
    box-shadow: 0 0 0 4px var(--fb-blue-light);
}

.ads-select option {
    padding: 10px;
    border-radius: 6px;
}

.info-box {
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--fb-gray-50) 0%, var(--white) 100%);
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: var(--font-size-sm);
    color: var(--fb-gray-700);
    border-left: 4px solid var(--fb-blue);
    box-shadow: var(--shadow-sm);
}

/* Empty State - Enhanced */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--fb-gray-500);
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    opacity: 0.4;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.empty-state p {
    font-size: 18px;
    color: var(--fb-gray-600);
    margin-bottom: 12px;
    font-weight: var(--font-weight-medium);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 1001;
    width: 44px;
    height: 44px;
    background: var(--white);
    border: 2px solid var(--fb-gray-200);
    border-radius: 10px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s;
}

.mobile-menu-toggle:hover {
    background: var(--gradient-primary);
    border-color: var(--fb-blue);
    transform: scale(1.05);
}

.mobile-menu-toggle:hover svg {
    color: var(--white);
}

.mobile-menu-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--fb-gray-700);
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
}

.mobile-menu-overlay.active {
    opacity: 1;
}

/* Responsive - Tablet */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
    
    .main-content {
        margin-left: 240px;
    }
    
    .content-wrapper {
        padding: 24px;
    }
    
    .admin-section {
        padding: 24px;
    }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    /* Mobile Menu */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-overlay {
        display: block;
    }
    
    .sidebar {
        width: 280px;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-xl);
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .top-header {
        padding: 16px 20px 16px 60px;
        flex-wrap: wrap;
    }
    
    .header-left h1 {
        font-size: 22px;
    }
    
    .header-right {
        width: 100%;
        margin-top: 12px;
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }
    
    .user-profile {
        width: 100%;
        justify-content: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .content-wrapper {
        padding: 16px;
    }
    
    /* Forms */
    .form-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .form-group {
        margin-bottom: 16px;
    }
    
    /* Admin Sections */
    .admin-section {
        padding: 20px;
        margin-bottom: 16px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding-bottom: 16px;
    }
    
    .section-header h2 {
        font-size: 20px;
    }
    
    /* User Cards */
    .user-card {
        flex-direction: column;
        padding: 20px;
        gap: 20px;
    }
    
    .user-actions {
        max-width: 100%;
        width: 100%;
    }
    
    .user-info {
        width: 100%;
    }
    
    /* Table */
    .ads-table-container {
        border-radius: 8px;
    }
    
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        position: relative;
    }
    
    .table-wrapper::after {
        content: '→';
        position: sticky;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        background: linear-gradient(to left, rgba(255,255,255,0.9), transparent);
        padding: 20px 10px;
        pointer-events: none;
        color: var(--fb-blue);
        font-size: 24px;
        font-weight: bold;
    }
    
    .ads-table {
        min-width: 1000px;
    }
    
    .ads-table th,
    .ads-table td {
        padding: 12px 8px;
        font-size: var(--font-size-sm);
    }
    
    .ads-table th {
        font-size: 11px;
        padding: 10px 8px;
    }
    
    .ads-table thead {
        position: sticky;
        top: 0;
        z-index: 5;
    }
    
    .table-header {
        padding: 16px;
    }
    
    .search-box input {
        max-width: 100%;
    }
    
    .table-footer {
        flex-direction: column;
        gap: 8px;
        padding: 12px 16px;
        text-align: center;
    }
    
    /* Status Toggle */
    .status-toggle {
        min-width: 70px;
        padding: 6px 10px;
        font-size: 11px;
    }
    
    /* Ad Thumbnail */
    .ad-thumbnail img {
        width: 60px;
        height: 60px;
    }
    
    /* Buttons */
    .btn {
        padding: 12px 20px;
        font-size: var(--font-size-base);
    }
    
    /* Login */
    .login-container {
        padding: 16px;
    }
    
    .login-box {
        padding: 32px 24px;
    }
    
    .login-header h1 {
        font-size: 26px;
    }
    
    /* Empty State */
    .empty-state {
        padding: 40px 16px;
    }
    
    .empty-state svg {
        width: 60px;
        height: 60px;
    }
    
    .empty-state p {
        font-size: 16px;
    }
    
    /* Info Box */
    .info-box {
        padding: 12px 16px;
        font-size: var(--font-size-sm);
    }
}

/* Responsive - Small Mobile */
@media (max-width: 480px) {
    .sidebar {
        width: 100%;
    }
    
    .top-header {
        padding: 12px 16px 12px 52px;
    }
    
    .header-left h1 {
        font-size: 20px;
    }
    
    .content-wrapper {
        padding: 12px;
    }
    
    .admin-section {
        padding: 16px;
        border-radius: 8px;
    }
    
    .section-header h2 {
        font-size: 18px;
    }
    
    .user-card {
        padding: 16px;
    }
    
    .user-avatar-small {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .user-info h3 {
        font-size: 18px;
    }
    
    .ads-table {
        min-width: 800px;
    }
    
    .ads-table th,
    .ads-table td {
        padding: 10px 6px;
        font-size: 11px;
    }
    
    .table-wrapper::after {
        display: none;
    }
    
    .status-toggle {
        min-width: 60px;
        padding: 5px 8px;
        font-size: 10px;
    }
    
    .ad-thumbnail img {
        width: 50px;
        height: 50px;
    }
    
    .login-box {
        padding: 24px 20px;
    }
    
    .login-header h1 {
        font-size: 24px;
    }
    
    .btn {
        padding: 14px 20px;
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Smooth Transitions */
* {
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}