/* ===== RESPONSIVE DARK THEME - MOBILE & DESKTOP ===== */

/* ===== DARK COLOR PALETTE ===== */
:root {
    /* Background Colors */
    --app-bg-primary: #0a0a0a;
    --app-bg-secondary: #1a1a1a;
    --app-bg-tertiary: #2a2a2a;
    --app-bg-card: #1e1e1e;
    --app-bg-modal: rgba(10, 10, 10, 0.95);
    
    /* Border Colors */
    --app-border-primary: #333333;
    --app-border-secondary: #444444;
    --app-border-accent: #00d4ff;
    --app-border-glow: rgba(0, 212, 255, 0.4);
    
    /* Text Colors */
    --app-text-primary: #ffffff;
    --app-text-secondary: #cccccc;
    --app-text-muted: #888888;
    --app-text-accent: #00d4ff;
    
    /* Accent Colors */
    --app-accent-primary: #00d4ff;
    --app-accent-secondary: #0066cc;
    --app-success: #00ff88;
    --app-warning: #ffaa00;
    --app-error: #ff4444;
    
    /* Responsive Spacing */
    --app-padding-sm: 12px;
    --app-padding-md: 16px;
    --app-padding-lg: 24px;
    --app-margin-sm: 8px;
    --app-margin-md: 12px;
    --app-margin-lg: 20px;
    
    /* Touch Targets */
    --app-touch-target: 44px;
    --app-button-height: 48px;
    
    /* Responsive Breakpoints */
    --app-mobile-max: 768px;
    --app-tablet-max: 1024px;
}

/* ===== GLOBAL RESET & BASE STYLES ===== */
* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--app-bg-primary);
    color: var(--app-text-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
}

/* ===== RESPONSIVE CONTAINER SYSTEM ===== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--app-bg-primary);
}

.app-header {
    background: var(--app-bg-secondary);
    border-bottom: 1px solid var(--app-border-primary);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0 var(--app-padding-md);
}

.app-content {
    flex: 1;
    padding: var(--app-padding-md);
    padding-bottom: 100px; /* Space for mobile bottom nav */
    max-width: 100%;
}

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

/* Mobile Navigation (Bottom Tabs) */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--app-bg-secondary);
    border-top: 1px solid var(--app-border-primary);
    height: 80px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 var(--app-padding-md);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--app-text-muted);
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s ease;
    min-width: var(--app-touch-target);
    min-height: var(--app-touch-target);
    padding: 8px;
    border-radius: 12px;
    cursor: pointer;
    border: none;
    background: none;
}

.nav-item.active {
    color: var(--app-accent-primary);
}

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

.nav-icon {
    font-size: 20px;
    margin-bottom: 4px;
}

/* Desktop Navigation (Top Bar) */
.desktop-nav {
    display: none;
    height: 60px;
    align-items: center;
    justify-content: space-between;
}

.desktop-nav-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--app-text-primary);
    text-decoration: none;
}

.desktop-nav-links {
    display: flex;
    gap: var(--app-margin-lg);
    align-items: center;
}

.desktop-nav-link {
    color: var(--app-text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.desktop-nav-link:hover,
.desktop-nav-link.active {
    color: var(--app-accent-primary);
    background: var(--app-bg-tertiary);
}

/* Mobile Header (for page titles) */
.mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.mobile-header h1 {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
    color: var(--app-text-primary);
}

.header-actions {
    display: flex;
    gap: var(--app-margin-sm);
}

.header-btn {
    background: none;
    border: none;
    color: var(--app-text-accent);
    font-size: 16px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: var(--app-touch-target);
    min-height: var(--app-touch-target);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-btn:hover {
    background: var(--app-bg-tertiary);
}

/* ===== RESPONSIVE CARD SYSTEM ===== */
.app-cards {
    display: grid;
    gap: var(--app-margin-md);
    grid-template-columns: 1fr;
}

.app-card {
    background: var(--app-bg-card);
    border: 1px solid var(--app-border-primary);
    border-radius: 16px;
    padding: var(--app-padding-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    overflow: hidden; /* Prevent text overflow */
}

.app-card:hover {
    border-color: var(--app-border-accent);
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--app-margin-sm);
    gap: var(--app-margin-sm); /* Add gap between title and status */
}

/* Status indicator container in card header */
.card-header .status-indicator {
    flex-shrink: 0; /* Prevent status indicator from shrinking */
    min-width: fit-content; /* Ensure minimum width for content */
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--app-text-primary);
    margin: 0;
}

.card-subtitle {
    font-size: 14px;
    color: var(--app-text-muted);
    margin: 4px 0 0 0;
}

/* ===== RESPONSIVE BUTTONS ===== */
.btn-primary {
    background: var(--app-accent-primary);
    color: var(--app-bg-primary);
    border: none;
    border-radius: 12px;
    padding: var(--app-padding-md) var(--app-padding-lg);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: var(--app-button-height);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--app-accent-secondary);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 212, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: var(--app-bg-tertiary);
    color: var(--app-text-muted);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.btn-secondary {
    background: var(--app-bg-tertiary);
    color: var(--app-text-primary);
    border: 1px solid var(--app-border-secondary);
    border-radius: 12px;
    padding: var(--app-padding-md) var(--app-padding-lg);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: var(--app-button-height);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-secondary:hover {
    background: var(--app-bg-secondary);
    border-color: var(--app-border-accent);
}

/* ===== RESPONSIVE FORMS ===== */
.app-form {
    width: 100%;
}

.form-group {
    margin-bottom: var(--app-margin-lg);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--app-text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    background: var(--app-bg-secondary);
    border: 1px solid var(--app-border-primary);
    border-radius: 12px;
    padding: var(--app-padding-md);
    font-size: 16px;
    color: var(--app-text-primary);
    transition: all 0.2s ease;
    min-height: var(--app-touch-target);
}

.form-input:focus {
    outline: none;
    border-color: var(--app-accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

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

/* ===== PROCESSING UI ===== */
.processing-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--app-bg-modal);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--app-padding-lg);
}

.processing-card {
    background: var(--app-bg-card);
    border: 1px solid var(--app-border-accent);
    border-radius: 20px;
    padding: 32px 24px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.processing-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border: 3px solid var(--app-accent-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.processing-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--app-text-primary);
    margin-bottom: 8px;
}

.processing-subtitle {
    font-size: 14px;
    color: var(--app-text-muted);
    margin-bottom: 20px;
}

.processing-progress {
    background: var(--app-bg-tertiary);
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    margin-bottom: 16px;
}

.processing-progress-bar {
    background: linear-gradient(90deg, var(--app-accent-primary), var(--app-accent-secondary));
    height: 100%;
    border-radius: 10px;
    transition: width 0.3s ease;
}

/* ===== ALERTS ===== */
.alert {
    background: var(--app-bg-card);
    border: 1px solid var(--app-border-primary);
    border-radius: 12px;
    padding: var(--app-padding-md);
    margin-bottom: var(--app-margin-md);
    display: flex;
    align-items: flex-start;
    gap: var(--app-margin-sm);
}

.alert-success {
    border-color: var(--app-success);
    background: rgba(0, 255, 136, 0.1);
}

.alert-warning {
    border-color: var(--app-warning);
    background: rgba(255, 170, 0, 0.1);
}

.alert-error {
    border-color: var(--app-error);
    background: rgba(255, 68, 68, 0.1);
}

.alert-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.alert-message {
    font-size: 13px;
    color: var(--app-text-secondary);
    line-height: 1.4;
}

/* ===== UTILITIES ===== */
.text-center {
    text-align: center;
}

.text-accent {
    color: var(--app-accent-primary);
}

.text-success {
    color: var(--app-success);
}

.text-warning {
    color: var(--app-warning);
}

.text-error {
    color: var(--app-error);
}

.space-y-3 > * + * {
    margin-top: 12px;
}

.space-y-4 > * + * {
    margin-top: 16px;
}

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

/* Tablet and up */
@media (min-width: 768px) {
    .app-content {
        padding: var(--app-padding-lg);
        padding-bottom: var(--app-padding-lg);
        max-width: 1200px;
        margin: 0 auto;
    }
    
    .app-cards {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--app-margin-lg);
    }
    
    .mobile-nav {
        display: none;
    }
    
    .desktop-nav {
        display: flex;
    }
    
    .mobile-header {
        display: none;
    }
    
    .btn-primary,
    .btn-secondary {
        width: auto;
        min-width: 150px;
    }
    
    .processing-card {
        max-width: 500px;
    }
}

/* Desktop and up */
@media (min-width: 1024px) {
    .app-content {
        padding: var(--app-padding-lg) 40px;
    }
    
    .app-cards {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
    
    .card-title {
        font-size: 18px;
    }
    
    .btn-primary,
    .btn-secondary {
        min-width: 180px;
    }
}

/* Large desktop */
@media (min-width: 1440px) {
    .app-content {
        max-width: 1400px;
    }
    
    .app-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== LEGACY OVERRIDES ===== */
.container, .container-fluid {
    padding: 0;
    max-width: none;
}

/* Hide old Bootstrap and terminal styles */
.navbar, .nav, .card, .btn,
.terminal-body, .dark-navbar, .processing-modal, .btn-terminal {
    display: none !important;
}

/* Note: Removed .alert from the hide list above so that our custom alert notifications can display */

/* ===== IN-CARD EXTRACTION EXPANSION ===== */

/* Expanded card state */
.app-card.expanded {
    height: 600px;
    transition: height 0.3s ease;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Expandable content area */
.card-expansion {
    position: relative;
    height: auto;
    min-height: 500px;
    margin-top: var(--app-margin-md);
    border-radius: 12px;
    overflow: visible;
    background: var(--app-bg-secondary);
    border: 1px solid var(--app-border-secondary);
}

/* Screenshot background */
.screenshot-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.15;
    filter: blur(1px);
    transition: opacity 0.5s ease;
}

/* Main extraction content container */
.extraction-content {
    position: relative;
    z-index: 10;
    height: 500px;
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: rgba(26, 26, 26, 0.8);
    backdrop-filter: blur(4px);
}

/* Log stream container */
.log-stream-container {
    flex: 3;
    display: flex;
    flex-direction: column;
    background: rgba(30, 30, 30, 0.9);
    border-bottom: 1px solid var(--app-border-primary);
}

/* Log stream header */
.log-stream-header {
    padding: var(--app-padding-md);
    border-bottom: 1px solid var(--app-border-primary);
    background: rgba(30, 30, 30, 0.9);
}

.log-stream-header h3 {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--app-text-primary);
}

/* Progress bar in header */
.extraction-progress {
    background: var(--app-bg-tertiary);
    border-radius: 6px;
    height: 6px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--app-accent-primary), var(--app-accent-secondary));
    height: 100%;
    border-radius: 6px;
    transition: width 0.3s ease;
    min-width: 2px;
}

/* ===== SCREENSHOT VIEWER SECTION ===== */

/* Screenshot viewer container */
.screenshot-viewer-container {
    flex: 2;
    display: flex;
    flex-direction: column;
    background: rgba(20, 20, 20, 0.95);
    overflow: hidden;
    min-height: 200px;
}

/* Screenshot viewer header */
.screenshot-viewer-header {
    padding: var(--app-padding-md);
    border-bottom: 1px solid var(--app-border-primary);
    background: rgba(25, 25, 25, 0.9);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.screenshot-viewer-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--app-text-primary);
}

/* Phase indicator */
.screenshot-phase-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.phase-text {
    font-size: 12px;
    color: var(--app-text-muted);
    font-weight: 500;
    padding: 4px 8px;
    background: var(--app-bg-tertiary);
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.phase-text.active {
    color: var(--app-accent-primary);
    background: rgba(0, 212, 255, 0.15);
}

/* Screenshot viewer main area */
.screenshot-viewer {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: rgba(10, 10, 10, 0.8);
    min-height: 150px;
}

/* Screenshot placeholder */
.screenshot-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--app-text-muted);
    text-align: center;
    padding: var(--app-padding-lg);
}

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

.placeholder-text {
    font-size: 13px;
    line-height: 1.4;
    max-width: 200px;
}

/* Screenshot image */
.screenshot-image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    transition: all 0.5s ease;
    opacity: 0;
}

.screenshot-image.visible {
    opacity: 1;
}

.screenshot-image.fade-out {
    opacity: 0;
    transform: scale(0.95);
}

.screenshot-image.fade-in {
    opacity: 1;
    transform: scale(1);
}

/* Screenshot overlay */
.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 16px 12px 12px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.screenshot-viewer:hover .screenshot-overlay {
    transform: translateY(0);
}

/* Screenshot info */
.screenshot-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.screenshot-timestamp {
    font-size: 11px;
    color: var(--app-accent-primary);
    font-weight: 600;
}

.screenshot-context {
    font-size: 10px;
    color: var(--app-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Log streaming area */
.log-stream {
    flex: 1;
    overflow-y: auto;
    padding: var(--app-padding-sm);
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.4;
    scrollbar-width: thin;
    scrollbar-color: var(--app-border-secondary) transparent;
}

.log-stream::-webkit-scrollbar {
    width: 6px;
}

.log-stream::-webkit-scrollbar-track {
    background: transparent;
}

.log-stream::-webkit-scrollbar-thumb {
    background: var(--app-border-secondary);
    border-radius: 3px;
}

.log-stream::-webkit-scrollbar-thumb:hover {
    background: var(--app-border-accent);
}

/* Individual log entries */
.log-entry {
    margin-bottom: 2px;
    padding: 2px 0;
    color: var(--app-text-secondary);
    animation: fadeInUp 0.3s ease;
    word-wrap: break-word;
    line-height: 1.3;
}

.log-entry:last-child {
    color: var(--app-accent-primary);
    font-weight: 500;
}

.log-entry.log-header {
    color: var(--app-warning);
    font-weight: 600;
    border-bottom: 1px solid var(--app-border-secondary);
    padding-bottom: 4px;
    margin-bottom: 8px;
    font-size: 0.9em;
}

/* Fade in animation for new log entries */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .app-card.expanded {
        height: 500px;
    }
    
    .card-expansion {
        height: auto;
        min-height: 400px;
    }
    
    /* Mobile adjustments - already vertical by default */
    .log-stream-container {
        flex: 2;
    }
    
    .screenshot-viewer-container {
        flex: 1;
    }
    
    .log-stream {
        font-size: 12px;
        padding: 8px;
    }
    
    .log-stream-header,
    .screenshot-viewer-header {
        padding: 12px;
    }
    
    .placeholder-icon {
        font-size: 36px;
    }
    
    .placeholder-text {
        font-size: 12px;
    }
    
    .screenshot-viewer-header h3 {
        font-size: 13px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .app-card.expanded {
        height: 480px;
    }
    
    .card-expansion {
        height: 330px;
    }
}

/* ===== SCHEDULER COMPONENTS ===== */

/* Status Indicators */
.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-indicator.status-success {
    background-color: var(--app-success);
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.6);
}

.status-indicator.status-error {
    background-color: var(--app-error);
    box-shadow: 0 0 8px rgba(255, 68, 68, 0.6);
}

.status-indicator.status-warning {
    background-color: var(--app-warning);
    box-shadow: 0 0 8px rgba(255, 170, 0, 0.6);
}

.status-indicator.status-unknown {
    background-color: var(--app-text-muted);
    box-shadow: 0 0 8px rgba(136, 136, 136, 0.4);
}

/* Schedule Time Display */
.schedule-time {
    display: inline-block;
    padding: 4px 8px;
    background-color: var(--app-bg-tertiary);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: 500;
    color: var(--app-text-primary);
    border: 1px solid var(--app-border-secondary);
}

.schedule-time:nth-child(3n) {
    border-color: var(--app-accent-primary);
    color: var(--app-accent-primary);
}

/* Scheduler Card Specific Buttons */
.btn-sm {
    height: 32px;
    padding: 0 12px;
    font-size: 12px;
    min-width: 80px;
}

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

/* Activity List */
#schedulerActivity div {
    padding: 2px 0;
    border-bottom: 1px solid var(--app-border-primary);
}

#schedulerActivity div:last-child {
    border-bottom: none;
}

/* Responsive Scheduler Card */
@media (max-width: 768px) {
    .schedule-time {
        padding: 2px 6px;
        font-size: 10px;
    }
    
    .btn-sm {
        height: 28px;
        padding: 0 8px;
        font-size: 11px;
        min-width: 60px;
    }
    
    #schedulerCard .grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    #schedulerCard .grid.grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== SETTINGS PAGE COMPONENTS ===== */

/* Settings Tabs */
.settings-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--app-text-muted);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.settings-tab:hover {
    color: var(--app-text-secondary);
    background: var(--app-bg-tertiary);
}

.settings-tab.active {
    color: var(--app-accent-primary);
    border-bottom-color: var(--app-accent-primary);
    background: var(--app-bg-card);
}

.settings-tab i {
    width: 18px;
    height: 18px;
}

/* Settings Content */
.settings-content {
    display: none;
}

.settings-content.active {
    display: block;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 48px;
    height: 24px;
    position: absolute;
    top: 0;
    left: 0;
    cursor: pointer;
    margin: 0;
    z-index: 1;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    pointer-events: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--app-bg-tertiary);
    border: 1px solid var(--app-border-secondary);
    transition: 0.3s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: var(--app-text-primary);
    transition: 0.3s;
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--app-accent-primary);
    border-color: var(--app-accent-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
    background-color: white;
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

/* Modal Components */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--app-bg-modal);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--app-padding-lg);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--app-bg-card);
    border: 1px solid var(--app-border-primary);
    border-radius: 16px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

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

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--app-text-primary);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--app-text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    color: var(--app-text-primary);
    background: var(--app-bg-tertiary);
}

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

/* Enhanced Form Controls */
.form-input:focus {
    border-color: var(--app-accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-input:invalid {
    border-color: var(--app-error);
}

.form-input:invalid:focus {
    box-shadow: 0 0 0 3px rgba(255, 68, 68, 0.1);
}

/* Grid Layouts for Settings */
.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

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

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

.gap-3 {
    gap: 12px;
}

.gap-4 {
    gap: 16px;
}

/* Settings Specific Button Styles */
.btn-sm {
    height: 36px;
    padding: 0 12px;
    font-size: 14px;
    min-width: 80px;
}

.btn-sm i {
    width: 16px;
    height: 16px;
}

/* Responsive Settings Layout */
@media (max-width: 768px) {
    .settings-tab {
        padding: 10px 12px;
        font-size: 14px;
    }
    
    .settings-tab span {
        display: none;
    }
    
    .grid-cols-2,
    .grid-cols-3 {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: var(--app-padding-md);
        max-height: calc(100vh - 32px);
    }
    
    .modal-header,
    .modal-body {
        padding: var(--app-padding-md);
    }
}

@media (min-width: 769px) {
    .grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Settings Form Validation */
.form-group.error .form-input {
    border-color: var(--app-error);
}

.form-group.error .form-label {
    color: var(--app-error);
}

.form-error {
    color: var(--app-error);
    font-size: 12px;
    margin-top: 4px;
    display: block;
}

/* Loading States */
.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary.loading,
.btn-secondary.loading {
    position: relative;
    color: transparent;
}

.btn-primary.loading::after,
.btn-secondary.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}