/* ==========================================
   Vulnerability Scanner - Main Stylesheet
   ========================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0f0f1a;
    --color-bg-secondary: #1a1a2e;
    --color-bg-tertiary: #252542;
    --color-text: #e8e8f0;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6b6b80;
    
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-light: rgba(99, 102, 241, 0.1);
    
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    
    --color-critical: #dc2626;
    --color-high: #ea580c;
    --color-medium: #d97706;
    --color-low: #65a30d;
    --color-unknown: #6b7280;
    
    --color-border: #2d2d44;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* App Layout */
#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.header-brand h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.logo {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border);
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    text-decoration: underline;
}

.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
}

.btn-sm svg {
    width: 14px;
    height: 14px;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

/* Login Page */
.page-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 80px);
}

.login-card {
    text-align: center;
    background: var(--color-bg-secondary);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    max-width: 400px;
    width: 100%;
}

.login-logo {
    width: 64px;
    height: 64px;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.login-card h2 {
    margin-bottom: var(--space-sm);
}

.login-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* Dashboard */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.dashboard-header h2 {
    font-size: 1.5rem;
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.summary-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

.summary-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.summary-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.summary-critical .summary-value { color: var(--color-critical); }
.summary-high .summary-value { color: var(--color-high); }
.summary-medium .summary-value { color: var(--color-medium); }
.summary-low .summary-value { color: var(--color-low); }

/* Projects Section */
.projects-section h3,
.files-section h3,
.vulns-section h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
}

.projects-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-md);
}

/* Project Card */
.project-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.project-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.project-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.project-card-name {
    font-size: 1.125rem;
    font-weight: 600;
}

.project-card-stats {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.project-card-desc {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
    display: -webkit-box;
    line-clamp: 2;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-card-footer {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--color-text-secondary);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

/* Project Page */
.project-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.project-title {
    flex: 1;
}

.project-title h2 {
    font-size: 1.5rem;
}

.project-title p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.project-actions {
    display: flex;
    gap: var(--space-sm);
}

/* Upload Area */
.upload-section {
    margin-bottom: var(--space-xl);
}

.upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-fast);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-area svg {
    width: 48px;
    height: 48px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.upload-area p {
    margin-bottom: var(--space-sm);
}

.upload-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Files List */
.files-section {
    margin-bottom: var(--space-xl);
}

.files-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.file-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.file-card-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.file-card-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.file-card-name {
    font-weight: 500;
}

.file-card-type {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.file-card-status {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.file-card-actions {
    display: flex;
    gap: var(--space-xs);
}

/* Vulnerabilities */
.vulns-section {
    margin-bottom: var(--space-xl);
}

.vulns-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.vuln-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.vuln-severity {
    width: 4px;
    align-self: stretch;
    border-radius: 2px;
}

.vuln-card[data-severity="CRITICAL"] .vuln-severity { background: var(--color-critical); }
.vuln-card[data-severity="HIGH"] .vuln-severity { background: var(--color-high); }
.vuln-card[data-severity="MEDIUM"] .vuln-severity { background: var(--color-medium); }
.vuln-card[data-severity="LOW"] .vuln-severity { background: var(--color-low); }
.vuln-card[data-severity="UNKNOWN"] .vuln-severity { background: var(--color-unknown); }

.vuln-info {
    flex: 1;
}

.vuln-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
}

.vuln-id {
    font-family: monospace;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
}

.vuln-pkg {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: var(--color-bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.vuln-title {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.vuln-versions {
    display: flex;
    gap: var(--space-md);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.vuln-versions code {
    background: var(--color-bg-tertiary);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
}

/* Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn var(--transition-fast);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: auto;
    animation: slideUp var(--transition-normal);
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: 1.125rem;
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn var(--transition-normal);
}

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

.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-danger); }
.toast-warning { border-left: 3px solid var(--color-warning); }

/* Loading Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Utility Classes */
.hidden { display: none !important; }
.loading { opacity: 0.5; pointer-events: none; }

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .main {
        padding: var(--space-md);
    }
    
    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .project-actions {
        width: 100%;
    }
    
    .project-actions .btn {
        flex: 1;
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}