/**
 * BIGG AI Dashboard - Tidio-style Theme
 * Clean, modern design with blue accent
 */

:root {
    --primary: #1a73e8;
    --primary-hover: #1557b0;
    --primary-light: #e8f0fe;
    --secondary: #5f6368;
    --success: #34a853;
    --warning: #fbbc04;
    --danger: #ea4335;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #9aa0a6;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-sidebar: #f1f3f4;
    --border: #dadce0;
    --border-light: #e8eaed;
    --shadow-sm: 0 1px 2px rgba(60,64,67,0.1);
    --shadow: 0 1px 3px rgba(60,64,67,0.15), 0 1px 2px rgba(60,64,67,0.1);
    --shadow-lg: 0 4px 12px rgba(60,64,67,0.15);
    --radius: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--bg-light);
    line-height: 1.5;
}

/* ==================== LOGIN PAGE ==================== */

.biggai-login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    padding: 20px;
}

.biggai-login-box {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-light);
}

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

.biggai-login-header .logo {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
}

.biggai-login-header h1 {
    font-size: 24px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 8px;
}

.biggai-login-header p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

.biggai-form-group {
    margin-bottom: 20px;
}

.biggai-form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.biggai-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-white);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.biggai-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.biggai-input::placeholder {
    color: var(--text-muted);
}

.biggai-form-error {
    background: #fce8e6;
    color: var(--danger);
    padding: 12px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
    display: none;
}

.biggai-form-error.show {
    display: block;
}

.biggai-login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
    font-size: 14px;
    color: var(--text-secondary);
}

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

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

/* ==================== BUTTONS ==================== */

.biggai-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
}

.biggai-btn-primary {
    background: var(--primary);
    color: white;
    width: 100%;
}

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

.biggai-btn-secondary {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

.biggai-btn-danger {
    background: #fce8e6;
    color: var(--danger);
    border: 1px solid transparent;
}

.biggai-btn-danger:hover {
    background: #f5c6c1;
}

.biggai-btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.biggai-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ==================== DASHBOARD LAYOUT ==================== */

.biggai-dashboard {
    display: flex;
    min-height: 100vh;
    background: var(--bg-white);
}

/* ==================== SIDEBAR ==================== */

.biggai-sidebar {
    width: 240px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.biggai-sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 12px;
}

.biggai-sidebar-logo {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.biggai-sidebar-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.biggai-sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.biggai-nav-section {
    margin-bottom: 8px;
}

.biggai-nav-label {
    padding: 8px 20px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.biggai-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    border-left: 3px solid transparent;
    font-size: 14px;
}

.biggai-nav-item:hover {
    background: rgba(0,0,0,0.04);
    color: var(--text-primary);
}

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

.biggai-nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.biggai-sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-light);
}

.biggai-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.biggai-user-avatar {
    width: 36px;
    height: 36px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.biggai-user-details {
    flex: 1;
    min-width: 0;
}

.biggai-user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.biggai-user-email {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==================== MAIN CONTENT ==================== */

.biggai-main {
    flex: 1;
    margin-left: 240px;
    display: flex;
    flex-direction: column;
}

.biggai-topbar {
    height: 56px;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.biggai-topbar-title {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
}

.biggai-topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.biggai-content {
    flex: 1;
    padding: 24px;
    background: var(--bg-light);
}

/* ==================== TABS ==================== */

.biggai-tab {
    display: none;
}

.biggai-tab.active {
    display: block;
}

/* ==================== STATS CARDS ==================== */

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

.biggai-stat-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border-light);
}

.biggai-stat-card-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    font-size: 20px;
}

.biggai-stat-card-value {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

/* ==================== CARDS ==================== */

.biggai-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    margin-bottom: 24px;
}

.biggai-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.biggai-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.biggai-card-body {
    padding: 20px;
}

/* ==================== UPLOAD AREA ==================== */

.biggai-upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-light);
}

.biggai-upload-zone:hover,
.biggai-upload-zone.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
}

.biggai-upload-zone-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    box-shadow: var(--shadow);
}

.biggai-upload-zone-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.biggai-upload-zone-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
}

.biggai-upload-zone-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 12px;
}

/* ==================== PROGRESS ==================== */

.biggai-upload-progress {
    padding: 20px;
    display: none;
}

.biggai-progress-bar {
    height: 6px;
    background: var(--border-light);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 12px;
}

.biggai-progress-fill {
    height: 100%;
    background: var(--primary);
    width: 0%;
    transition: width 0.3s;
}

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

/* ==================== DOCUMENTS LIST ==================== */

.biggai-doc-list {
    display: flex;
    flex-direction: column;
}

.biggai-doc-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-light);
    transition: background 0.15s;
}

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

.biggai-doc-item:hover {
    background: var(--bg-light);
}

.biggai-doc-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.biggai-doc-icon {
    width: 40px;
    height: 40px;
    background: #e8f0fe;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.biggai-doc-icon.pdf { background: #fce8e6; }
.biggai-doc-icon.docx { background: #e8f0fe; }
.biggai-doc-icon.txt { background: #e6f4ea; }
.biggai-doc-icon.csv { background: #fef7e0; }

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

.biggai-doc-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.biggai-doc-empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
}

.biggai-doc-empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.5;
}

/* ==================== SEARCH BOX ==================== */

.biggai-search-wrapper {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.biggai-search-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
}

.biggai-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* ==================== SEARCH RESULTS ==================== */

.biggai-search-results {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.biggai-result-item {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
}

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

.biggai-result-score {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 8px;
}

.biggai-result-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 8px;
}

.biggai-result-source {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==================== ALERT/MESSAGE ==================== */

.biggai-alert {
    padding: 14px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
    display: none;
}

.biggai-alert.show {
    display: block;
}

.biggai-alert-success {
    background: #e6f4ea;
    color: #137333;
    border: 1px solid #ceead6;
}

.biggai-alert-error {
    background: #fce8e6;
    color: #c5221f;
    border: 1px solid #f5c6c1;
}

/* ==================== EMPTY STATE ==================== */

.biggai-empty-state {
    text-align: center;
    padding: 60px 20px;
}

.biggai-empty-state-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.6;
}

.biggai-empty-state-title {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.biggai-empty-state-text {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 400px;
    margin: 0 auto 24px;
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 768px) {
    .biggai-sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .biggai-main {
        margin-left: 0;
    }
    
    .biggai-sidebar-nav {
        display: flex;
        overflow-x: auto;
        padding: 0;
    }
    
    .biggai-nav-item {
        white-space: nowrap;
        border-left: none;
        border-bottom: 3px solid transparent;
        padding: 12px 16px;
    }
    
    .biggai-nav-item.active {
        border-left: none;
        border-bottom-color: var(--primary);
    }
    
    .biggai-nav-label {
        display: none;
    }
}

/* AI Settings Form Styles */
.biggai-form-group { margin-bottom: 20px; }
.biggai-form-label { display: block; font-size: 14px; font-weight: 500; color: var(--text-primary); margin-bottom: 8px; }
.biggai-form-input, .biggai-form-select, .biggai-form-textarea { 
    width: 100%; 
    padding: 12px 16px; 
    border: 1px solid var(--border-color); 
    border-radius: 8px; 
    font-size: 14px; 
    outline: none; 
    box-sizing: border-box;
    background: #fff;
}
.biggai-form-input:focus, .biggai-form-select:focus, .biggai-form-textarea:focus { 
    border-color: var(--primary-color); 
}
.biggai-form-textarea { min-height: 100px; resize: vertical; font-family: inherit; }
.biggai-form-hint { font-size: 12px; color: var(--text-muted); margin-top: 6px; }
.btn-success { background: #059669; color: #fff; }
.btn-success:hover { background: #047857; }
.btn-lg { padding: 14px 28px; font-size: 16px; }