/**
 * AdGen Pro - App Layout Styles
 * Modern multi-page application styling
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Colors */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;

    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 72px;
    --sidebar-bg: var(--color-gray-900);
    --sidebar-text: var(--color-gray-300);
    --sidebar-text-active: #ffffff;
    --sidebar-hover-bg: rgba(255, 255, 255, 0.08);
    --sidebar-active-bg: rgba(99, 102, 241, 0.2);

    /* Header */
    --header-height: 64px;
    --header-bg: #ffffff;

    /* Content */
    --content-bg: var(--color-gray-50);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* ============================================
   Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-gray-900);
    background: var(--content-bg);
    -webkit-font-smoothing: antialiased;
}

/* ============================================
   App Layout
   ============================================ */
.app-layout {
    min-height: 100vh;
}

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

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: width var(--transition-normal);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #ffffff;
    font-weight: 700;
    font-size: 20px;
    white-space: nowrap;
    overflow: hidden;
}

.logo-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.logo-accent {
    color: var(--color-primary-light);
}

.sidebar.collapsed .logo-text {
    opacity: 0;
    width: 0;
}

.sidebar-toggle {
    background: transparent;
    border: none;
    color: var(--sidebar-text);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    background: var(--sidebar-hover-bg);
}

.sidebar.collapsed .sidebar-toggle {
    margin: 0 auto;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-gray-500);
    padding: 0 8px;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar.collapsed .nav-section-title {
    opacity: 0;
    height: 0;
    margin: 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
    overflow: hidden;
}

.nav-item:hover {
    background: var(--sidebar-hover-bg);
    color: var(--sidebar-text-active);
}

.nav-item.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text-active);
}

.nav-item.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.nav-text {
    flex: 1;
    font-weight: 500;
}

.sidebar.collapsed .nav-text,
.sidebar.collapsed .nav-badge {
    opacity: 0;
    width: 0;
}

.nav-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--color-primary);
    color: white;
    flex-shrink: 0;
}

.nav-badge.coming-soon {
    background: var(--color-gray-600);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-gray-500);
    font-size: 12px;
}

.sidebar.collapsed .sidebar-info {
    justify-content: center;
}

.sidebar.collapsed .version {
    display: none;
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-normal);
}

.sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

/* Content Header */
.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    height: var(--header-height);
    background: var(--header-bg);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--color-gray-600);
    cursor: pointer;
    padding: 8px;
}

.page-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: var(--color-gray-900);
}

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

/* Content Body */
.content-body {
    flex: 1;
    padding: 32px;
    max-width: 1400px;
}

/* ============================================
   Dashboard
   ============================================ */
.dashboard {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.welcome-section {
    text-align: center;
    padding: 24px 0;
}

.welcome-section h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: var(--color-gray-900);
}

.welcome-section p {
    font-size: 16px;
    color: var(--color-gray-600);
    margin: 0;
}

/* Action Cards */
.action-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 24px;
}

.action-card {
    position: relative;
    background: #ffffff;
    border-radius: var(--radius-xl);
    padding: 28px;
    text-decoration: none;
    color: inherit;
    border: 2px solid var(--color-gray-200);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.action-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.action-card.featured {
    border-color: var(--color-primary-light);
    background: linear-gradient(135deg, #ffffff 0%, #f5f3ff 100%);
}

.card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--color-primary);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 12px;
}

.card-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    color: var(--color-gray-600);
}

.action-card:hover .card-icon {
    background: var(--color-primary);
    color: white;
}

.text-ads-icon {
    background: #dbeafe;
    color: #2563eb;
}

.product-ads-icon {
    background: #ede9fe;
    color: #7c3aed;
}

.card-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--color-gray-900);
}

.card-content p {
    font-size: 14px;
    color: var(--color-gray-600);
    margin: 0 0 16px 0;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.feature-list li {
    font-size: 13px;
    color: var(--color-gray-600);
    display: flex;
    align-items: center;
    gap: 6px;
}

.feature-list li::before {
    content: "✓";
    color: var(--color-success);
    font-weight: 600;
}

.card-action {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--color-gray-100);
}

.action-card:hover .card-action {
    gap: 12px;
}

/* Recent Section */
.recent-section {
    background: #ffffff;
    border-radius: var(--radius-xl);
    padding: 24px;
    border: 1px solid var(--color-gray-200);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.section-header h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--color-gray-500);
}

.empty-icon {
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    margin: 0 0 8px 0;
    font-size: 14px;
}

.coming-soon-label {
    font-size: 12px;
    color: var(--color-gray-400);
}

/* ============================================
   Mobile Responsive
   ============================================ */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .content-header {
        padding: 0 20px;
    }

    .content-body {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .action-cards {
        grid-template-columns: 1fr;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }

    .welcome-section h2 {
        font-size: 22px;
    }
}

/* ============================================
   Editor Layout (for text-ads and product-ads)
   ============================================ */
.editor-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
    min-height: calc(100vh - var(--header-height) - 64px);
}

.editor-main {
    background: #ffffff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    padding: 24px;
}

.editor-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.editor-panel {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--color-gray-100);
    cursor: pointer;
}

.panel-header h4 {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
}

.panel-content {
    padding: 16px;
}

@media (max-width: 1200px) {
    .editor-layout {
        grid-template-columns: 1fr;
    }

    .editor-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .editor-panel {
        flex: 1;
        min-width: 300px;
    }
}