/* ============================================
   PastProof Design System
   Cancel-Proof Your Digital History
   ============================================ */

:root {
    /* Colors */
    --bg-primary: #0f0f12;
    --bg-secondary: #1a1a22;
    --bg-tertiary: #252530;
    --bg-hover: #2a2a38;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    
    --accent-primary: #6366f1;
    --accent-primary-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.3);
    
    /* Risk Colors */
    --risk-critical: #ef4444;
    --risk-critical-bg: rgba(239, 68, 68, 0.15);
    --risk-high: #f97316;
    --risk-high-bg: rgba(249, 115, 22, 0.15);
    --risk-medium: #eab308;
    --risk-medium-bg: rgba(234, 179, 8, 0.15);
    --risk-low: #22c55e;
    --risk-low-bg: rgba(34, 197, 94, 0.15);
    
    /* Status Colors */
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
    
    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-default: rgba(255, 255, 255, 0.12);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.35);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    
    /* Layout */
    --sidebar-width: 260px;
}

/* ============================================
   Reset & Base
   ============================================ */

*, *::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(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============================================
   App Layout
   ============================================ */

.app {
    display: flex;
    min-height: 100vh;
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-subtle);
}

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

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    flex: 1;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-glow);
    color: var(--accent-primary-hover);
}

.nav-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.badge {
    margin-left: auto;
    background: var(--risk-critical);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-subtle);
}

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

.avatar {
    width: 36px;
    height: 36px;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 500;
    font-size: 0.875rem;
}

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

/* ============================================
   Main Content
   ============================================ */

.main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--spacing-xl);
    overflow-y: auto;
}

/* ============================================
   Views
   ============================================ */

.view {
    display: none;
    max-width: 1200px;
}

.view.active {
    display: block;
}

.view-header {
    margin-bottom: var(--spacing-xl);
}

.view-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    color: var(--text-secondary);
}

/* ============================================
   Stats Grid
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stat-card.warning {
    border-color: var(--risk-high);
    background: var(--risk-high-bg);
}

.stat-card.success {
    border-color: var(--success);
    background: var(--risk-low-bg);
}

.stat-icon {
    font-size: 2rem;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-value.score {
    color: var(--risk-medium);
}

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

/* ============================================
   Cards
   ============================================ */

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Dashboard Grid
   ============================================ */

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* Risk Timeline / Heatmap */
.heatmap {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.heatmap-row .year {
    width: 50px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.heatmap-bar {
    flex: 1;
    height: 28px;
    background: linear-gradient(90deg, 
        var(--risk-low) 0%,
        var(--risk-medium) 50%,
        var(--risk-critical) 100%);
    background-size: 300% 100%;
    background-position: calc(100% - var(--risk) * 3) 0;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    padding-left: var(--spacing-sm);
}

.heatmap-bar span {
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.heatmap-legend {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.legend-gradient {
    flex: 1;
    height: 8px;
    background: linear-gradient(90deg, var(--risk-low), var(--risk-medium), var(--risk-critical));
    border-radius: var(--radius-full);
}

/* Connected Accounts */
.accounts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.account {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
}

.account-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
}

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

.account-name {
    font-weight: 500;
    font-size: 0.875rem;
}

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

.connection-status {
    color: var(--success);
    font-weight: 600;
}

.btn-connect {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

/* Recent Flags */
.flags-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.flag-item {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border-left: 3px solid;
}

.flag-item.critical { border-color: var(--risk-critical); }
.flag-item.high { border-color: var(--risk-high); }
.flag-item.medium { border-color: var(--risk-medium); }
.flag-item.low { border-color: var(--risk-low); }

.flag-severity {
    font-size: 1.25rem;
}

.flag-content {
    min-width: 0;
}

.flag-text {
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: var(--spacing-xs);
}

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

.reason-tag {
    font-size: 0.75rem;
    padding: 2px 8px;
    background: var(--bg-hover);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
}

.btn-review {
    padding: var(--spacing-xs) var(--spacing-md);
    background: transparent;
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.view-all {
    display: block;
    text-align: center;
    padding: var(--spacing-md);
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 0.875rem;
}

.view-all:hover {
    text-decoration: underline;
}

/* ============================================
   Scan View
   ============================================ */

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

.scan-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
}

.scan-card.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.scan-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.scan-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.scan-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

.scan-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-primary {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--accent-primary-hover);
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

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

.help-link {
    display: block;
    margin-top: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-decoration: none;
}

.help-link:hover {
    text-decoration: underline;
}

.coming-soon {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Progress */
.scan-progress {
    margin-top: var(--spacing-xl);
}

.scan-progress.hidden {
    display: none;
}

.progress-card {
    background: var(--bg-secondary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
}

.progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    margin: var(--spacing-lg) 0;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), #a78bfa);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.progress-status {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Review View
   ============================================ */

.review-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-default);
}

.filter-btn.critical.active { border-color: var(--risk-critical); }
.filter-btn.high.active { border-color: var(--risk-high); }
.filter-btn.medium.active { border-color: var(--risk-medium); }
.filter-btn.low.active { border-color: var(--risk-low); }

.bulk-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.select-all {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    cursor: pointer;
}

.btn-danger {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--risk-critical);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-danger:hover {
    background: #dc2626;
}

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

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

.review-item {
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-fast);
}

.review-item:hover {
    border-color: var(--border-default);
}

.item-select {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.severity-indicator {
    width: 4px;
    border-radius: var(--radius-full);
    align-self: stretch;
}

.severity-indicator.critical { background: var(--risk-critical); }
.severity-indicator.high { background: var(--risk-high); }
.severity-indicator.medium { background: var(--risk-medium); }
.severity-indicator.low { background: var(--risk-low); }

.review-content {
    min-width: 0;
}

.post-preview {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.post-preview p {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.post-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.platform {
    font-weight: 500;
}

.risk-analysis {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.risk-tag {
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.risk-tag.critical { background: var(--risk-critical-bg); color: var(--risk-critical); }
.risk-tag.high { background: var(--risk-high-bg); color: var(--risk-high); }
.risk-tag.medium { background: var(--risk-medium-bg); color: var(--risk-medium); }
.risk-tag.low { background: var(--risk-low-bg); color: var(--risk-low); }

.risk-reasons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.risk-reasons .reason {
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding: 2px 8px;
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
}

.ai-context {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--accent-primary);
}

.ai-context strong {
    color: var(--accent-primary);
}

.review-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    min-width: 100px;
}

.btn-ghost {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    color: var(--text-muted);
    border: none;
    font-size: 0.875rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.btn-ghost:hover {
    color: var(--text-primary);
}

/* ============================================
   Archive View
   ============================================ */

.archive-empty {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

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

/* ============================================
   Settings View
   ============================================ */

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.settings-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.settings-card h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.settings-card > p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

/* Sensitivity Slider */
.sensitivity-slider {
    margin-bottom: var(--spacing-md);
}

.sensitivity-slider input[type="range"] {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    appearance: none;
    cursor: pointer;
}

.sensitivity-slider input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-glow);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.slider-description {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

/* Category Toggles */
.category-toggles {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

.toggle-label {
    font-size: 0.875rem;
}

/* Privacy Info */
.privacy-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.privacy-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
}

.privacy-icon {
    color: var(--success);
    font-weight: 600;
}

/* ============================================
   Toast Notifications
   ============================================ */

.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 1000;
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

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

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

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .sidebar {
        width: 70px;
    }
    
    .logo-text,
    .nav-item span:not(.nav-icon),
    .user-details {
        display: none;
    }
    
    .nav-item {
        justify-content: center;
    }
    
    .badge {
        position: absolute;
        top: 2px;
        right: 2px;
        padding: 0 4px;
        font-size: 0.625rem;
    }
    
    .main {
        margin-left: 70px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main {
        margin-left: 0;
        padding: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .review-item {
        grid-template-columns: auto 1fr;
    }
    
    .review-actions {
        grid-column: span 2;
        flex-direction: row;
        justify-content: flex-end;
    }
}