/* KeywordRadar - Styles */

:root {
    --primary: #007AFF;
    --primary-dark: #0056CC;
    --success: #34C759;
    --warning: #FF9500;
    --danger: #FF3B30;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.2);
    --sidebar-width: 260px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --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);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--gray-800);
    line-height: 1.5;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-100);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), #5856D6);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 16px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: all 0.2s;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-icon {
    width: 20px;
    height: 20px;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), #5856D6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

.user-name {
    font-weight: 500;
    font-size: 14px;
}

.user-role {
    font-size: 12px;
    color: var(--gray-500);
}

.logout-btn {
    padding: 8px;
    border-radius: var(--radius-sm);
    color: var(--gray-500);
    transition: all 0.2s;
}

.logout-btn:hover {
    background: var(--gray-100);
    color: var(--danger);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px;
    min-height: 100vh;
}

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.3s ease;
}

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

.alert-success {
    background: rgba(52, 199, 89, 0.15);
    color: #1B7F37;
    border: 1px solid rgba(52, 199, 89, 0.3);
}

.alert-error {
    background: rgba(255, 59, 48, 0.15);
    color: #CC2F26;
    border: 1px solid rgba(255, 59, 48, 0.3);
}

.alert-warning {
    background: rgba(255, 149, 0, 0.15);
    color: #995700;
    border: 1px solid rgba(255, 149, 0, 0.3);
}

.alert-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    opacity: 0.5;
}

.alert-close:hover {
    opacity: 1;
}

/* Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 24px;
    margin-bottom: 24px;
}

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

.card-title {
    font-size: 18px;
    font-weight: 600;
}

/* Page Header */
.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
}

.page-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon.blue { background: rgba(0, 122, 255, 0.15); color: var(--primary); }
.stat-icon.green { background: rgba(52, 199, 89, 0.15); color: var(--success); }
.stat-icon.orange { background: rgba(255, 149, 0, 0.15); color: var(--warning); }
.stat-icon.purple { background: rgba(88, 86, 214, 0.15); color: #5856D6; }

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-800);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

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

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

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 15px;
    background: white;
    transition: all 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-hint {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 6px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--gray-500);
    border-bottom: 1px solid var(--gray-200);
}

.table td {
    padding: 16px;
    border-bottom: 1px solid var(--gray-100);
}

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

.table tr:hover {
    background: var(--gray-50);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-blue { background: rgba(0, 122, 255, 0.15); color: var(--primary); }
.badge-green { background: rgba(52, 199, 89, 0.15); color: #1B7F37; }
.badge-orange { background: rgba(255, 149, 0, 0.15); color: #995700; }
.badge-red { background: rgba(255, 59, 48, 0.15); color: #CC2F26; }
.badge-purple { background: rgba(88, 86, 214, 0.15); color: #5856D6; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* Score Bar */
.score-bar {
    width: 100%;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
}

.score-fill.high { background: var(--success); }
.score-fill.medium { background: var(--warning); }
.score-fill.low { background: var(--danger); }

/* Tabs */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--gray-100);
    padding: 4px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.tab {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    text-decoration: none;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--gray-800);
}

.tab.active {
    background: white;
    color: var(--gray-800);
    box-shadow: var(--shadow-sm);
}

/* Grid */
.grid {
    display: grid;
    gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Project Card */
.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.2s;
}

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

.project-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.project-keyword {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 16px;
}

.project-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

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

.project-stat-value {
    font-size: 18px;
    font-weight: 600;
}

.project-stat-label {
    font-size: 11px;
    color: var(--gray-500);
    text-transform: uppercase;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--gray-700);
    margin-bottom: 8px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.pagination a, .pagination span {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    text-decoration: none;
    color: var(--gray-600);
    background: white;
    border: 1px solid var(--gray-200);
}

.pagination a:hover {
    background: var(--gray-100);
}

.pagination .active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
}

.auth-title {
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.auth-subtitle {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--gray-500);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Utility */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }

/* Responsive */
@media (max-width: 1024px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}