/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
    /* Material 3 Light Theme Colors */
    --primary: #6750A4;
    --primary-container: #EADDFF;
    --on-primary: #FFFFFF;
    --on-primary-container: #21005D;
    --surface: #FFFFFF;
    --surface-variant: #E7E0EC;
    --on-surface: #1C1B1F;
    --on-surface-variant: #49454F;
    --outline: #79747E;
    --outline-variant: #CAC4D0;
    --background-light: #f6f6f8;
    
    /* Icon Colors */
    --icon-green: #10B981;
    --icon-blue: #3B82F6;
    --icon-red: #EF4444;
    --icon-purple: #A855F7;
    
    /* Icon Backgrounds */
    --icon-bg-green: #ECFDF5;
    --icon-bg-blue: #EFF6FF;
    --icon-bg-red: #FEF2F2;
    --icon-bg-purple: #F3E8FF;
    --icon-bg-gray: #F3F4F6;
    
    /* Badge Colors */
    --badge-green-bg: #ECFDF5;
    --badge-green-text: #10B981;
    --badge-primary-bg: #EADDFF;
    --badge-primary-text: #6750A4;
    
    /* Avatar Colors */
    --avatar-orange-bg: #FFF4E6;
    --avatar-orange-text: #F97316;
    
    /* Switch Colors */
    --switch-track-active: #EADDFF;
    --switch-thumb-active: #FFFFFF;
    --switch-track-inactive: #CAC4D0;
    --switch-thumb-inactive: #FFFFFF;
    
    /* Typography */
    --font-family: 'Helvetica World', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-none: none;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Dark Mode Variables */
body.dark-mode {
    /* Material 3 Dark Theme Colors */
    --primary: #D0BCFF;
    --primary-container: #4F378B;
    --on-primary: #381E72;
    --on-primary-container: #EADDFF;
    --surface: #1C1B1F;
    --surface-variant: #49454F;
    --on-surface: #E6E1E5;
    --on-surface-variant: #CAC4D0;
    --outline: #938F99;
    --outline-variant: #49454F;
    --background-light: #1C1B1F;
    
    /* Icon Backgrounds (darker versions) */
    --icon-bg-green: #1A3A2E;
    --icon-bg-blue: #1E293B;
    --icon-bg-red: #3A1F1F;
    --icon-bg-purple: #2D1B3D;
    --icon-bg-gray: #2C2B2F;
    
    /* Badge Colors (darker versions) */
    --badge-green-bg: #1A3A2E;
    --badge-green-text: #4CAF50;
    --badge-primary-bg: #4F378B;
    --badge-primary-text: #D0BCFF;
    
    /* Avatar Colors (darker versions) */
    --avatar-orange-bg: #3A2E1F;
    --avatar-orange-text: #FF8A50;
    
    /* Switch Colors */
    --switch-track-active: #D0BCFF;
    --switch-thumb-active: #381E72;
    --switch-track-inactive: #49454F;
    --switch-thumb-inactive: #938F99;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--on-surface);
    background-color: var(--background-light);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
}

@font-face {
    font-family: 'Helvetica World';
    src: url('fonts/HelveticaWorld.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--on-surface);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--on-surface-variant);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--on-surface-variant);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: var(--spacing-md);
}

.section-label-small {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-2xl) 0;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-family);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    min-height: 44px;
}

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

.btn-primary:hover {
    background-color: #5a3d8f;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary-container);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--outline-variant);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.link-button {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    padding: var(--spacing-sm);
    font-family: var(--font-family);
    transition: color var(--transition-fast);
}

.link-button:hover {
    color: var(--on-primary-container);
}

/* ============================================
   Cards
   ============================================ */
.card {
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-none);
    transition: all var(--transition-base);
}

.card-main {
    border-radius: var(--radius-lg);
}

.card:hover {
    border-color: var(--primary);
}

/* ============================================
   Language Selector Header
   ============================================ */
.language-header {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md);
    pointer-events: none;
}

.language-selector {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--surface);
    border-radius: 24px;
    padding: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    pointer-events: auto;
    transition: box-shadow 0.3s ease;
}

.language-selector:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: none;
    background: transparent;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--on-surface);
    min-width: 60px;
    justify-content: center;
}

.lang-btn:hover {
    background: var(--surface-variant);
}

.lang-btn.active {
    background: var(--primary);
    color: var(--on-primary);
}

.lang-btn.active:hover {
    background: var(--primary);
    opacity: 0.9;
}

.lang-flag {
    font-size: 1.125rem;
    line-height: 1;
}

.lang-code {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Dark mode adjustments */
body.dark-mode .language-selector {
    background: var(--surface);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

body.dark-mode .language-selector:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

body.dark-mode .lang-btn {
    color: var(--on-surface);
}

body.dark-mode .lang-btn:hover {
    background: var(--surface-variant);
}

body.dark-mode .lang-btn.active {
    background: var(--primary);
    color: var(--on-primary);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .language-header {
        padding: var(--spacing-sm);
    }
    
    .lang-btn {
        padding: 6px var(--spacing-xs);
        min-width: 50px;
        font-size: 0.75rem;
    }
    
    .lang-flag {
        font-size: 1rem;
    }
    
    .lang-code {
        font-size: 0.6875rem;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--background-light) 0%, var(--surface) 100%);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    align-items: flex-start;
}

.hero-tutorial {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.hero-cta-download {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.ios-coming-soon {
    font-size: 1rem;
    margin: 0;
    text-align: center;
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

/* iOS coming soon in hero section - same color as button text */
.hero-cta-download .ios-coming-soon {
    color: var(--primary);
}

/* iOS coming soon in CTA section - same color as button text (white) */
.cta-download .ios-coming-soon {
    color: var(--on-primary);
}

/* Dark mode adjustments */
body.dark-mode .hero-cta-download .ios-coming-soon {
    color: var(--primary);
}

body.dark-mode .cta-download .ios-coming-soon {
    color: var(--on-primary);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.stat-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--on-surface);
}

.stat-icon {
    font-size: 1.25rem;
}

/* ============================================
   Features Section
   ============================================ */
.features-section {
    background-color: var(--surface);
    padding: var(--spacing-2xl) 0;
}

/* ============================================
   Privacy & Security Section
   ============================================ */
.privacy-section {
    background-color: var(--background-light);
    padding: var(--spacing-2xl) 0;
}

.privacy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.privacy-card {
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.privacy-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.privacy-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-container);
    border-radius: var(--radius-md);
}

.privacy-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--on-surface);
}

.privacy-description {
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
}

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

.feature-card {
    padding: var(--spacing-xl);
    text-align: center;
    transition: transform var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--on-surface);
}

.feature-description {
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
}

/* ============================================
   App Screens Section
   ============================================ */
.app-screens-section {
    background-color: var(--background-light);
    padding: var(--spacing-2xl) 0;
}

.screen-nav {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.screen-nav-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--on-surface);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.screen-nav-btn:hover {
    background-color: var(--primary-container);
    border-color: var(--primary);
    color: var(--primary);
}

.screen-nav-btn.active {
    background-color: var(--primary);
    color: var(--on-primary);
    border-color: var(--primary);
}

/* Blacklist Sub Navigation */
.blacklist-sub-nav {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.blacklist-sub-nav-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--on-surface);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.blacklist-sub-nav-btn:hover {
    background-color: var(--primary-container);
    border-color: var(--primary);
    color: var(--primary);
}

.blacklist-sub-nav-btn.active {
    background-color: var(--primary);
    color: var(--on-primary);
    border-color: var(--primary);
}

.blacklist-sub-screen {
    display: none;
}

.blacklist-sub-screen.active {
    display: block !important;
    width: 100% !important;
    min-width: 300px !important;
    min-height: 400px !important;
}

/* Ensure sub-screens are visible when parent app-screen is active */
.app-screen.active .blacklist-sub-screen.active {
    display: block !important;
    width: 100% !important;
    min-width: 300px !important;
}

/* Ensure screen-content is visible inside active sub-screens */
.blacklist-sub-screen.active .screen-content {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    width: 100% !important;
    max-width: 500px !important;
    min-width: 300px !important;
    min-height: 200px !important;
    margin: 0 auto !important;
    box-sizing: border-box !important;
}

/* Ensure all content elements are visible */
.blacklist-sub-screen.active .screen-content > * {
    visibility: visible !important;
    opacity: 1 !important;
}

/* Specific display rules for elements that need flex layout */
.blacklist-sub-screen.active .screen-content .blacklist-sub-header,
.blacklist-sub-screen.active .screen-content .blacklist-numbers-list,
.blacklist-sub-screen.active .screen-content .blacklist-settings-cards {
    display: flex !important;
    visibility: visible !important;
}

/* Elements that should be block */
.blacklist-sub-screen.active .screen-content .blacklist-title-section,
.blacklist-sub-screen.active .screen-content .blacklist-footer-info {
    display: block !important;
    visibility: visible !important;
}

.screen-container {
    position: relative;
    min-height: 600px;
    width: 100%;
    margin-bottom: var(--spacing-xl);
    box-sizing: border-box;
}

.app-screen {
    display: none;
    animation: fadeIn 0.3s ease;
    width: 100%;
    min-width: 300px;
    box-sizing: border-box;
}

.app-screen.active {
    display: block !important;
    width: 100% !important;
    min-width: 300px !important;
    box-sizing: border-box !important;
}

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

.screen-content {
    max-width: 500px;
    width: 100%;
    min-width: 300px;
    margin: 0 auto;
    background-color: var(--background-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-sizing: border-box;
}

/* Force explicit dimensions for blacklist sub-screens content */
.blacklist-sub-screen.active .screen-content {
    width: 100% !important;
    max-width: 500px !important;
    min-width: 300px !important;
}

/* ============================================
   Protection Card
   ============================================ */
.protection-card {
    margin-bottom: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.protection-card-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.protection-status {
    flex: 1;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #4CAF50;
    display: inline-block;
}

.status-dot.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

@keyframes pulseFab {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 6px 12px rgba(103, 80, 164, 0.4);
    }
}

.status-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.protection-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--on-surface);
}

.protection-description {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

/* ============================================
   Switch Component
   ============================================ */
.switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 32px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--switch-track-inactive);
    transition: var(--transition-base);
    border-radius: 14px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 4px;
    bottom: 4px;
    background-color: var(--switch-thumb-inactive);
    transition: var(--transition-base);
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.switch input:checked + .switch-slider {
    background-color: var(--switch-track-active);
}

.switch input:checked + .switch-slider:before {
    transform: translateX(20px);
}

.switch input:focus + .switch-slider {
    box-shadow: 0 0 0 3px rgba(103, 80, 164, 0.2);
}

/* ============================================
   Stats Cards
   ============================================ */
.stats-cards-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.stats-card {
    padding: var(--spacing-lg);
    position: relative;
}

.stats-card-content {
    position: relative;
}

.stats-icon-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.1;
}

.stats-label {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--on-surface-variant);
    margin-bottom: var(--spacing-sm);
}

.stats-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: var(--spacing-md);
}

.stats-card-small {
    padding: var(--spacing-lg);
}

.stats-card-small-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.stats-small-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stats-small-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stats-small-label {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--on-surface-variant);
}

.stats-small-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--on-surface);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: var(--surface-variant);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

/* ============================================
   Quick Actions
   ============================================ */
.quick-actions-section {
    margin-bottom: var(--spacing-xl);
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
}

.quick-action-card {
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.quick-action-card:hover {
    background-color: var(--primary-container);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.quick-action-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.quick-action-text {
    flex: 1;
    min-width: 0;
}

.quick-action-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.quick-action-subtitle {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

/* ============================================
   Recent Activity
   ============================================ */
.recent-activity-section {
    margin-bottom: var(--spacing-xl);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.recent-activity-list {
    padding: var(--spacing-xs);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    animation: slideIn 0.3s ease backwards;
}

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

.activity-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.activity-info {
    flex: 1;
    min-width: 0;
}

.activity-number {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.activity-time {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

.activity-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.activity-badge.blocked {
    background-color: var(--icon-bg-red);
    color: var(--icon-red);
}

/* ============================================
   Whitelist Screen
   ============================================ */
.search-card {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
}

.search-card-no-border {
    margin-bottom: var(--spacing-md);
    padding: 0;
    border: none;
    background-color: var(--surface);
    border-radius: var(--radius-md);
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--on-surface-variant);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 44px;
    border: none;
    background: transparent;
    font-size: 1rem;
    font-family: var(--font-family);
    color: var(--on-surface);
    outline: none;
}

.search-input::placeholder {
    color: var(--on-surface-variant);
}

.allow-contacts-card {
    margin-bottom: var(--spacing-xl);
}

.allow-contacts-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.allow-contacts-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.allow-contacts-text {
    flex: 1;
    min-width: 0;
}

.allow-contacts-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.allow-contacts-description {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

.whitelist-section {
    margin-bottom: var(--spacing-xl);
}

.badge-primary {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--spacing-sm);
    background-color: var(--badge-primary-bg);
    color: var(--badge-primary-text);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

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

.whitelist-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    animation: slideIn 0.3s ease backwards;
}

.whitelist-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.whitelist-info {
    flex: 1;
    min-width: 0;
}

.whitelist-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.whitelist-number {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

.fab {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background-color: var(--primary);
    color: var(--on-primary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-base);
    z-index: 100;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.fab.pulse {
    animation: pulseFab 2s infinite;
}

.fab:active {
    transform: scale(0.95);
}

/* ============================================
   Statistics Screen
   ============================================ */
.chart-card {
    margin-bottom: var(--spacing-xl);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.chart-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--on-surface);
}

.period-chips {
    display: flex;
    gap: var(--spacing-xs);
    background-color: var(--surface);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
}

.period-chip {
    padding: 6px var(--spacing-md);
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.period-chip:hover {
    background-color: var(--primary-container);
    color: var(--primary);
}

.period-chip.active {
    background-color: var(--badge-primary-bg);
    color: var(--badge-primary-text);
    font-weight: 700;
}

.chart-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background-color: var(--surface);
    border-radius: var(--radius-sm);
}

.chart-nav-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.chart-nav-btn:hover {
    background-color: var(--surface-variant);
}

.chart-period-label {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--on-surface);
    min-width: 150px;
    text-align: center;
}

.chart-container {
    width: 100%;
    height: 200px;
    margin: var(--spacing-sm) 0 var(--spacing-md);
    position: relative;
    overflow: hidden;
}

#activity-chart {
    max-width: 100%;
    width: 100%;
    height: 100%;
    display: block;
}

.chart-total {
    text-align: center;
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    margin-top: var(--spacing-xl);
}

.top-origins-card {
    margin-bottom: var(--spacing-xl);
}

.card-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--on-surface);
    padding: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
}

.top-origins-list {
    display: flex;
    flex-direction: column;
}

.origin-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    animation: slideIn 0.3s ease backwards;
}

.origin-flag {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.origin-info {
    flex: 1;
    min-width: 0;
}

.origin-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.origin-code {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

.origin-count {
    font-size: 1rem;
    font-weight: 700;
    color: var(--on-surface);
}

.recent-blocks-card {
    margin-bottom: var(--spacing-xl);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
}

.recent-blocks-list {
    display: flex;
    flex-direction: column;
}

.block-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    animation: slideIn 0.3s ease backwards;
}

.block-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.block-info {
    flex: 1;
    min-width: 0;
}

.block-number {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.block-time {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

/* ============================================
   Countries Screen
   ============================================ */
.countries-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.countries-title-section {
    flex: 1;
}

.countries-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: var(--spacing-xs);
}

.countries-step {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

.countries-progress {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.progress-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--outline-variant);
}

.progress-dot.active {
    background-color: var(--primary);
}

.countries-subtitle {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    margin-bottom: var(--spacing-lg);
}

.filter-chips {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.filter-chip {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--on-surface);
    background-color: transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    min-height: 36px;
}

.filter-chip:hover {
    background-color: var(--surface-variant);
}

.filter-chip.active {
    background-color: var(--primary);
    color: var(--on-primary);
    font-weight: 700;
}

.bulk-action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.btn-block-all,
.btn-allow-all {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    min-height: 40px;
}

.btn-block-all {
    background-color: #FEF2F2;
    color: #DC2626;
}

.btn-block-all:hover {
    background-color: #FEE2E2;
}

.btn-allow-all {
    background-color: #ECFDF5;
    color: #16A34A;
}

.btn-allow-all:hover {
    background-color: #D1FAE5;
}

.countries-hint {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

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

.country-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.country-item:hover {
    border-color: var(--primary);
}

.country-flag {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.country-info {
    flex: 1;
    min-width: 0;
}

.country-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.country-code {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

.country-toggle-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.country-toggle-icon:hover {
    transform: scale(1.1);
}

.country-item {
    cursor: pointer;
}

/* ============================================
   Blacklist Sub-screens
   ============================================ */
.blacklist-sub-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.blacklist-back-btn,
.blacklist-next-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.blacklist-back-btn:hover,
.blacklist-next-btn:hover {
    background-color: var(--surface-variant);
}

.blacklist-sub-title-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 var(--spacing-sm);
}

.blacklist-sub-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: var(--spacing-xs);
}

.blacklist-sub-progress {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.blacklist-title-section {
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-sm);
}

.blacklist-title-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--spacing-xs);
}

.blacklist-main-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--on-surface);
    flex: 1;
}

.blacklist-step {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

.blacklist-subtitle {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    margin-top: var(--spacing-xs);
}

.blacklist-numbers-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
}

.blacklist-number-item {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.blacklist-number-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.blacklist-number-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.blacklist-number-info {
    flex: 1;
    min-width: 0;
}

.blacklist-number-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 2px;
}

.blacklist-number-phone {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

.blacklist-number-actions {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.blacklist-action-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.blacklist-action-btn:hover {
    background-color: var(--surface-variant);
}

.blacklist-footer-info {
    padding: var(--spacing-xl) var(--spacing-2xl);
    text-align: center;
}

.blacklist-footer-info p {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
}

.blacklist-settings-cards {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.blacklist-setting-card {
    padding: var(--spacing-md);
}

.blacklist-setting-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.blacklist-setting-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.blacklist-setting-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--on-surface);
}

.blacklist-setting-body {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.blacklist-setting-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.blacklist-setting-description {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
    margin: 0;
}

.blacklist-setting-description strong {
    color: var(--on-surface);
    font-weight: 600;
}

/* ============================================
   Tutorial Overlay
   ============================================ */
.tutorial-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: none;
    pointer-events: none;
}

.tutorial-overlay.active {
    display: block;
    pointer-events: all;
}

.tutorial-highlight {
    position: absolute;
    border: 3px solid var(--primary);
    border-radius: var(--radius-md);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5),
                0 0 20px rgba(103, 80, 164, 0.5);
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 1001;
}

.tutorial-tooltip {
    position: absolute;
    background-color: var(--surface);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    width: auto;
    min-width: 280px;
    max-width: min(400px, 90vw);
    box-shadow: var(--shadow-md);
    z-index: 1002;
    pointer-events: all;
    box-sizing: border-box;
}

.tutorial-arrow {
    position: absolute;
    width: 0;
    height: 0;
    border: 8px solid transparent;
}

.tutorial-arrow.top {
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-bottom-color: var(--surface);
}

.tutorial-arrow.bottom {
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-top-color: var(--surface);
}

.tutorial-arrow.left {
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border-right-color: var(--surface);
}

.tutorial-arrow.right {
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border-left-color: var(--surface);
}

.tutorial-content {
    margin-bottom: var(--spacing-md);
}

.tutorial-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: var(--spacing-sm);
}

.tutorial-text {
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
}

.tutorial-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    min-width: 0;
}

.tutorial-nav {
    display: flex;
    gap: var(--spacing-sm);
}

.tutorial-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.tutorial-btn-skip {
    background-color: transparent;
    color: var(--on-surface-variant);
}

.tutorial-btn-skip:hover {
    color: var(--on-surface);
    background-color: var(--surface-variant);
}

.tutorial-btn-prev,
.tutorial-btn-next {
    background-color: var(--primary);
    color: var(--on-primary);
}

.tutorial-btn-prev:hover,
.tutorial-btn-next:hover {
    background-color: #5a3d8f;
}

.tutorial-btn-prev:disabled,
.tutorial-btn-next:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tutorial-progress {
    margin-top: var(--spacing-md);
    height: 4px;
    background-color: var(--surface-variant);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.tutorial-progress-bar {
    height: 100%;
    background-color: var(--primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.tutorial-controls {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.dark-mode-toggle {
    display: flex;
    align-items: center;
}

.dark-mode-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.9375rem;
    color: var(--on-surface);
}

.dark-mode-text {
    font-weight: 500;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, #5a3d8f 100%);
    color: var(--on-primary);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-download {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--on-primary);
}

.cta-subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--surface);
    border-top: 1px solid var(--outline-variant);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--spacing-xs);
}

.footer-contact-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.footer-email {
    font-size: 1rem;
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-email:hover {
    color: var(--primary);
    text-decoration: underline;
    opacity: 0.8;
}

.footer-email::before {
    content: "✉";
    font-size: 1.125rem;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--outline-variant);
    text-align: center;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-cards-row {
        grid-template-columns: 1fr;
    }
    
    .screen-content {
        padding: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        justify-content: center;
        align-items: center;
    }
    
    .hero-cta-download {
        width: 100%;
        align-items: center;
        justify-content: center;
        text-align: center;
    }
    
    .hero-cta-download .btn {
        width: auto;
        margin: 0 auto;
    }
    
    .hero-cta-download .ios-coming-soon {
        text-align: center;
        width: 100%;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .fab {
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .hero-cta-download {
        width: 100%;
        align-items: center;
        justify-content: center;
        text-align: center;
    }
    
    .hero-cta-download .btn {
        width: auto;
        margin: 0 auto;
    }
    
    .hero-cta-download .ios-coming-soon {
        text-align: center;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .screen-nav {
        flex-direction: column;
    }
    
    .screen-nav-btn {
        width: 100%;
    }
    
    .tutorial-tooltip {
        max-width: calc(100% - 32px);
        margin: var(--spacing-md);
    }
}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   Dialog / Popup Styles
   ============================================ */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-md);
}

.dialog-overlay.active {
    display: flex;
}

.dialog-card {
    background-color: var(--surface);
    border-radius: 28px;
    max-width: 420px;
    width: 100%;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: dialogSlideIn 0.2s ease;
}

@keyframes dialogSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.dialog-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-md);
}

.dialog-icon-container {
    width: 32px;
    height: 32px;
    border-radius: 16px;
    background-color: var(--primary-container);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dialog-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--on-surface);
    margin: 0;
    line-height: 32px;
    letter-spacing: -0.015em;
}

.dialog-divider {
    height: 1px;
    background-color: var(--outline-variant);
    margin: var(--spacing-sm) 0;
}

.dialog-content {
    padding: var(--spacing-lg) var(--spacing-xl);
    max-height: 400px;
    overflow-y: auto;
}

.dialog-field {
    margin-bottom: var(--spacing-lg);
}

.dialog-field:last-child {
    margin-bottom: 0;
}

.dialog-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    margin-bottom: var(--spacing-xs);
}

.dialog-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-family);
    color: var(--on-surface);
    background-color: var(--surface);
    box-sizing: border-box;
    transition: border-color var(--transition-fast);
}

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

.dialog-input::placeholder {
    color: var(--on-surface-variant);
}

.dialog-message {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
    margin: 0;
    text-align: center;
}

.dialog-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl) var(--spacing-xl);
    justify-content: flex-end;
}

.dialog-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 10px 24px;
    min-height: 40px;
    border: none;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-base);
    letter-spacing: 0.015em;
}

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

.dialog-btn-primary:hover {
    background-color: #5a3d8f;
}

.dialog-btn-secondary {
    background-color: transparent;
    color: var(--primary);
}

.dialog-btn-secondary:hover {
    background-color: var(--primary-container);
}

/* Delete dialog specific styles */
#dialog-delete-overlay .dialog-header {
    justify-content: center;
    padding-bottom: var(--spacing-sm);
}

#dialog-delete-overlay .dialog-icon-container {
    background-color: var(--icon-bg-red);
}

#dialog-delete-overlay .dialog-actions {
    flex-direction: column;
}

#dialog-delete-overlay .dialog-btn-primary {
    background-color: var(--icon-red);
    color: white;
    width: 100%;
    margin-bottom: var(--spacing-md);
}

#dialog-delete-overlay .dialog-btn-primary:hover {
    background-color: #b91c1c;
}

#dialog-delete-overlay .dialog-btn-secondary {
    width: 100%;
}

/* Dark mode specific adjustments */
body.dark-mode .btn-primary:hover {
    background-color: #B8A0FF;
}

body.dark-mode .btn-block-all {
    background-color: #3A1F1F;
    color: #F2B8B5;
}

body.dark-mode .btn-block-all:hover {
    background-color: #4A2F2F;
}

body.dark-mode .btn-allow-all {
    background-color: #1A3A2E;
    color: #4CAF50;
}

body.dark-mode .btn-allow-all:hover {
    background-color: #2A4A3E;
}

body.dark-mode .cta-section {
    background: linear-gradient(135deg, #D0BCFF 0%, #B8A0FF 100%);
}