/* Modern CSS for OpenClaw Scanner - Unified Tech Color Scheme */
:root {
    /* Unified tech color palette - Blue tech theme */
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --primary-light: #3395ff;
    --primary-gradient: linear-gradient(135deg, #007bff, #0056b3);
    
    /* Neutral colors */
    --light-color: #f8f9fa;
    --gray-light: #e9ecef;
    --gray-color: #adb5bd;
    --gray-dark: #495057;
    --dark-color: #212529;
    
    /* Status colors (subtle variations of primary) */
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    
    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #1a1a2e;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px 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, 0.15);
    
    /* Borders */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Modern Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-brand i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

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

.nav-link {
    color: var(--gray-dark);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(0, 123, 255, 0.1);
}

.nav-auth {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark-color);
    cursor: pointer;
}

/* Modern Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: var(--spacing-lg) auto;
    padding: 0 var(--spacing-md);
}

/* Auth Section */
.auth-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
}

.auth-container {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    width: 100%;
    max-width: 450px;
}

.auth-tabs {
    display: flex;
    background: var(--bg-secondary);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-md);
    background: none;
    border: none;
    font-weight: 600;
    color: var(--gray-dark);
    cursor: pointer;
    transition: var(--transition);
}

.auth-tab.active {
    color: var(--primary-color);
    background: white;
    border-bottom: 3px solid var(--primary-color);
}

.auth-forms {
    padding: var(--spacing-xl);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-form h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.auth-subtitle {
    color: var(--gray-color);
    margin-bottom: var(--spacing-lg);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-dark);
}

.form-group input {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.auth-footer {
    margin-top: var(--spacing-md);
    text-align: center;
    color: var(--gray-color);
}

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

/* Page Sections */
.page-section {
    display: none;
}

.page-section.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.page-header p {
    color: var(--gray-color);
    font-size: 1.1rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-content h3 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.stat-content p {
    color: var(--gray-color);
    font-weight: 500;
}

/* Dashboard Actions */
.dashboard-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.action-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.action-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.action-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.action-card p {
    color: var(--gray-color);
    margin-bottom: var(--spacing-md);
}

/* Upload Container */
.upload-container {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

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

.upload-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.upload-card h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.upload-card p {
    color: var(--gray-color);
    margin-bottom: var(--spacing-sm);
}

.file-size-note {
    color: var(--warning-color);
    font-weight: 500;
}

/* File Upload Area */
.file-drop-area {
    border: 3px dashed var(--gray-light);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    transition: var(--transition);
    position: relative;
}

.file-drop-area:hover {
    border-color: var(--primary-color);
    background: rgba(0, 123, 255, 0.05);
}

.file-drop-area input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

.file-drop-content {
    pointer-events: none;
}

.file-drop-content i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.file-drop-content p {
    color: var(--gray-dark);
    margin-bottom: var(--spacing-sm);
}

.file-name {
    display: block;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 1.1rem;
}

.upload-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.upload-info {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: left;
    margin-top: var(--spacing-lg);
}

.upload-info h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.upload-info ul {
    list-style: none;
    padding-left: 0;
}

.upload-info li {
    padding: 0.5rem 0;
    color: var(--gray-dark);
    position: relative;
    padding-left: 1.5rem;
}

.upload-info li:before {
    content: "✓";
    color: var(--success-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Progress Bar */
.scan-progress {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-lg);
}

.progress-bar {
    height: 10px;
    background: var(--gray-light);
    border-radius: 5px;
    overflow: hidden;
    margin: var(--spacing-md) 0;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    width: 0%;
    transition: width 0.5s ease;
    border-radius: 5px;
}

#progressText {
    color: var(--gray-dark);
    font-weight: 500;
    text-align: center;
}

/* History Controls */
.history-controls {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-color);
}

.filter-controls select {
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    background: white;
    color: var(--dark-color);
    min-width: 150px;
}

/* Profile */
.profile-container {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.profile-card {
    margin-bottom: var(--spacing-lg);
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.profile-info h3 {
    font-size: 1.8rem;
    margin-bottom: 0.25rem;
    color: var(--dark-color);
}

.profile-info p {
    color: var(--gray-color);
    margin-bottom: 0.5rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.profile-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
}

.stat-label {
    color: var(--gray-dark);
    font-weight: 500;
}

.stat-value {
    color: var(--dark-color);
    font-weight: 600;
}

.profile-actions {
    display: flex;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
}

.footer-content p {
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 9999;
}

.toast {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 300px;
    animation: slideIn 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.success {
    border-left-color: var(--success-color);
}

.toast.error {
    border-left-color: var(--danger-color);
}

.toast.warning {
    border-left-color: var(--warning-color);
}

.toast.info {
    border-left-color: var(--info-color);
}

.toast-icon {
    font-size: 1.5rem;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.toast-message {
    color: var(--gray-dark);
    font-size: 0.9rem;
}

.toast-close {
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    transition: var(--transition);
}

.toast-close:hover {
    color: var(--dark-color);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--gray-color);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

.scans-list {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.history-list {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        z-index: 1001;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-auth {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
        margin-top: var(--spacing-sm);
        width: 100%;
    }
    
    .nav-auth .user-greeting {
        text-align: center;
        font-size: 0.9rem;
        color: var(--gray-dark);
        margin-bottom: 0.5rem;
    }
    
    .nav-auth .btn {
        width: 100%;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-actions {
        grid-template-columns: 1fr;
    }
    
    .history-controls {
        flex-direction: column;
    }
    
    .search-box {
        min-width: 100%;
    }
    
    .upload-actions {
        flex-direction: column;
    }
    
    .profile-header {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .auth-container {
        margin: 0 var(--spacing-sm);
    }
    
    .auth-forms {
        padding: var(--spacing-lg);
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .toast {
        min-width: auto;
        width: calc(100vw - var(--spacing-lg) * 2);
    }
}

/* Loading Animation */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fa-spin {
    animation: spin 1s linear infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}