/**
 * Layout CSS
 * Page layouts and structural styles
 */

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

/* Header */
.app-header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
    margin-bottom: 1.5rem; /* Added spacing below header for better visual separation */
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-logo img {
    height: 40px;
}

.header-title {
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation */
.nav-tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--surface-color);
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

/* Main Content */
.app-content {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Dashboard Grid */
.ds-dashboard-container {
    display: grid;
    gap: var(--spacing-xl);
}

.ds-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.ds-stat-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-normal);
}

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

.ds-stat-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ds-stat-content {
    flex: 1;
}

.ds-stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.ds-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Forms Grid */
.ds-forms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.ds-form-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

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

.ds-form-card-header {
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    display: flex;
    justify-content: space-between;
    align-items: start;
}

.ds-form-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    flex: 1;
}

.ds-form-card-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.ds-form-card-body {
    padding: var(--spacing-md) var(--spacing-lg);
    flex: 1;
}

.ds-form-description {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.ds-form-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.ds-form-card-footer {
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
}

/* Response Grid */
.ds-response-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.ds-response-card {
    background: var(--surface-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.ds-response-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.ds-status-completed {
    border-color: var(--success-color);
}

.ds-status-draft {
    border-color: var(--warning-color);
}

.ds-status-new {
    border-color: var(--info-color);
}

.ds-response-header {
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(124, 58, 237, 0.05);
}

.ds-response-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    font-size: 1.25rem;
}

.ds-response-info {
    flex: 1;
}

.ds-response-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.ds-response-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.ds-star-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    transition: all var(--transition-fast);
}

.ds-star-btn:hover {
    transform: scale(1.2);
}

.ds-star-active {
    color: var(--warning-color);
}

.ds-response-body {
    padding: var(--spacing-lg);
}

.ds-response-preview {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.ds-preview-item {
    margin-bottom: var(--spacing-xs);
    display: flex;
    gap: var(--spacing-sm);
}

.ds-preview-key {
    font-weight: 500;
    color: var(--text-color);
}

.ds-response-footer {
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
}

/* Activity List */
.ds-activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.ds-activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.ds-activity-item:hover {
    background: rgba(124, 58, 237, 0.05);
}

.ds-activity-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
}

.ds-activity-content {
    flex: 1;
}

.ds-activity-title {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.ds-activity-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.ds-activity-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Quick Actions */
.ds-quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* Section Headers */
.ds-section-header {
    margin-bottom: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.ds-section-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

.ds-section-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

/* Filter Tabs */
.ds-filter-tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--surface-color);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.ds-filter-tab {
    padding: var(--spacing-xs) var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-muted);
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.ds-filter-tab:hover {
    color: var(--text-color);
    background: rgba(124, 58, 237, 0.1);
}

.ds-filter-tab-active {
    background: var(--primary-color) !important;
    color: white !important;
}

/* Search Bar */
.ds-search-bar {
    position: relative;
}

.ds-search-bar input {
    padding-left: var(--spacing-xl);
}

.ds-search-bar::before {
    content: '🔍';
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
}

/* Icon Buttons */
.ds-icon-btn {
    background: none;
    border: none;
    padding: var(--spacing-xs);
    font-size: 1.25rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ds-icon-btn:hover {
    background: rgba(124, 58, 237, 0.1);
}

/* Auth Section */
.ds-auth-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-md);
}

/* Responsive Design */
@media (max-width: 768px) {
    .ds-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .ds-forms-grid {
        grid-template-columns: 1fr;
    }
    
    .ds-response-grid {
        grid-template-columns: 1fr;
    }
    
    .ds-section-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .ds-section-actions {
        flex-direction: column;
    }
    
    .ds-filter-tabs {
        flex-direction: column;
    }
    
    .app-content {
        padding: var(--spacing-md);
    }
}