/* ============================================
   BenchVoice Premium Marketing Site
   World-Class Static Site - Brand Aligned
   ============================================ */

/* ============================================
   Design System - Premium Tokens
   ============================================ */

:root {
    /* Color System - Deep Navy/Charcoal Base (Not Pure Black) */
    --color-bg-base: #070A12;
    --color-bg-primary: #0B1220;
    --color-bg-secondary: #0F1724;
    --color-bg-elevated: #141B2A;
    --color-bg-surface: rgba(255, 255, 255, 0.04);
    --color-bg-surface-hover: rgba(255, 255, 255, 0.08);
    --color-bg-glass: rgba(255, 255, 255, 0.06);
    
    /* Primary Accent - Cool Blue (iOS/Analytics) */
    --color-primary: #007AFF;
    --color-primary-hover: #0051D5;
    --color-primary-light: rgba(0, 122, 255, 0.15);
    --color-primary-glow: rgba(0, 122, 255, 0.2);
    
    /* Secondary Accent - Subtle Green */
    --color-accent: #34C759;
    --color-accent-light: rgba(52, 199, 89, 0.1);
    
    /* Text Hierarchy */
    --color-text-primary: #FFFFFF;
    --color-text-secondary: rgba(255, 255, 255, 0.85);
    --color-text-tertiary: rgba(255, 255, 255, 0.65);
    --color-text-muted: rgba(255, 255, 255, 0.45);
    
    /* Borders & Dividers */
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-subtle: rgba(255, 255, 255, 0.06);
    --color-border-glow: rgba(0, 122, 255, 0.3);
    --color-divider: rgba(255, 255, 255, 0.08);
    
    /* Spacing Scale (8px base) */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 20px;
    --space-2xl: 24px;
    --space-3xl: 32px;
    --space-4xl: 40px;
    --space-5xl: 48px;
    --space-6xl: 64px;
    --space-7xl: 80px;
    --space-8xl: 96px;
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    
    /* Type Scale */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
    --text-3xl: clamp(1.875rem, 1.6rem + 1.375vw, 2.25rem);
    --text-4xl: clamp(2.25rem, 1.9rem + 1.75vw, 3rem);
    --text-5xl: clamp(3rem, 2.4rem + 3vw, 4.5rem);
    
    /* Line Heights */
    --leading-tight: 1.2;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows - Subtle & Layered */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(0, 122, 255, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --container-max-width: 1280px;
    
    /* Glass Blur */
    --glass-blur: blur(20px) saturate(180%);
    --container-padding: var(--space-lg);
    
    /* Glass Effect */
    --glass-blur: blur(20px) saturate(180%);
    --glass-bg: rgba(255, 255, 255, 0.06);
}

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

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-system);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* Layered Background with Gradients */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 122, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(52, 199, 89, 0.06) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-bg-base) 0%, var(--color-bg-primary) 100%);
    z-index: -2;
    pointer-events: none;
}

/* Subtle noise texture (CSS-only) */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.01) 2px, rgba(255, 255, 255, 0.01) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255, 255, 255, 0.01) 2px, rgba(255, 255, 255, 0.01) 4px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.3;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: var(--leading-tight);
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: var(--space-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

ul, ol {
    margin-left: var(--space-2xl);
    margin-bottom: var(--space-lg);
}

li {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

strong {
    font-weight: 600;
    color: var(--color-text-primary);
}

/* ============================================
   Layout Components
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

@media (min-width: 768px) {
    :root {
        --container-padding: var(--space-2xl);
    }
}

@media (min-width: 1024px) {
    :root {
        --container-padding: var(--space-3xl);
    }
}

/* ============================================
   Header & Navigation
   ============================================ */

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg-glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: var(--space-lg) 0;
    transition: all var(--transition-base);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-xl);
}

.logo {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary) 50%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all var(--transition-base);
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), transparent);
    transition: width var(--transition-base);
}

.logo:hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: var(--text-xl);
    cursor: pointer;
    padding: var(--space-sm);
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.menu-toggle:hover {
    background: var(--color-bg-surface);
}

.menu-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

nav a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-md);
    right: var(--space-md);
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

nav a:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-surface);
}

nav a.active {
    color: var(--color-text-primary);
    background: var(--color-primary-light);
}

nav a.active::after {
    transform: scaleX(1);
}

/* Mobile Navigation */
@media (max-width: 767px) {
    .menu-toggle {
        display: flex;
    }
    
    nav {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: var(--color-bg-glass);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-bottom: 1px solid var(--color-border-subtle);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-sm);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    nav a {
        width: 100%;
        padding: var(--space-md);
        text-align: left;
    }
    
    nav a::after {
        left: var(--space-md);
        right: var(--space-md);
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    padding: var(--space-8xl) 0 var(--space-7xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }
}

.hero-text {
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 1024px) {
    .hero-text {
        margin: 0;
    }
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2xl);
    color: var(--color-text-primary);
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    line-height: var(--leading-relaxed);
}

.hero-tagline {
    font-size: var(--text-base);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-3xl);
    line-height: var(--leading-relaxed);
}

.hero-cta-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
}

@media (min-width: 480px) {
    .hero-cta-group {
        flex-direction: row;
        justify-content: center;
    }
}

@media (min-width: 1024px) {
    .hero-cta-group {
        justify-content: flex-start;
    }
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-3xl);
    background: var(--color-primary);
    color: var(--color-text-primary);
    border-radius: var(--radius-lg);
    font-size: var(--text-lg);
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    min-height: 44px;
}

.hero-cta:hover:not(:disabled):not(.disabled) {
    background: var(--color-primary-hover);
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-lg), var(--shadow-glow), 0 0 60px rgba(0, 122, 255, 0.3);
}

.hero-cta:active:not(:disabled):not(.disabled) {
    transform: translateY(0) scale(0.98);
}

.hero-cta:disabled,
.hero-cta.disabled {
    background: var(--color-bg-elevated);
    color: var(--color-text-tertiary);
    cursor: not-allowed;
    box-shadow: none;
}

.hero-cta-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-3xl);
    background: var(--color-bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    border-radius: var(--radius-lg);
    font-size: var(--text-lg);
    font-weight: 500;
    transition: all var(--transition-base);
    min-height: 44px;
}

.hero-cta-secondary:hover {
    background: var(--color-bg-surface-hover);
    border-color: var(--color-border-glow);
    transform: translateY(-2px) scale(1.02);
}

.hero-cta-secondary:active {
    transform: translateY(0) scale(0.98);
}

.hero-cta-secondary:not(a) {
    pointer-events: none;
}

.hero-testflight-note {
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-md);
    margin-bottom: 0;
}

@media (min-width: 480px) {
    .hero-testflight-note {
        text-align: left;
    }
}

@media (min-width: 1024px) {
    .hero-testflight-note {
        text-align: left;
    }
}

/* Device Mock */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-mock {
    position: relative;
    width: 100%;
    max-width: 320px;
    aspect-ratio: 9 / 19.5;
    background: linear-gradient(135deg, var(--color-bg-elevated) 0%, var(--color-bg-secondary) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-md);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    border: 1px solid var(--color-border);
    transition: all var(--transition-slow);
    /* Subtle floating animation for the device frame only (not the screen content) */
    animation: deviceFloat 8s ease-in-out infinite;
    will-change: transform;
}

@keyframes deviceFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-6px) rotate(0.5deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .device-mock {
        animation: none;
    }
}

.device-mock::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.hero-visual:hover .device-mock::before {
    opacity: 0.3;
}

.hero-visual:hover .device-mock {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl), 0 0 60px rgba(0, 122, 255, 0.3);
}

.device-screen {
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.device-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 50% 30%, rgba(0, 122, 255, 0.1) 0%, transparent 70%),
        linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    opacity: 0.8;
    z-index: 0;
}

/* Hero Carousel */
.hero-carousel {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateY(3px);
    transition: opacity 800ms cubic-bezier(0.4, 0, 0.2, 1), 
                transform 800ms cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.carousel-slide.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    z-index: 2;
}

.carousel-slide.prev {
    opacity: 0;
    transform: translateY(-3px);
    z-index: 1;
}

.carousel-slide picture,
.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/* Carousel Navigation Dots */
.carousel-dots {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-sm);
    z-index: 10;
    padding: var(--space-xs);
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    border: none;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    padding: 0;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}

.carousel-dot:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.carousel-dot:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.carousel-dot.active {
    background: var(--color-primary);
    width: 24px;
    box-shadow: 0 0 8px rgba(0, 122, 255, 0.5);
}

@media (prefers-reduced-motion: reduce) {
    .carousel-slide {
        transition: none;
    }
    
    .carousel-slide.active {
        opacity: 1;
        transform: none;
    }
    
    .carousel-slide:not(.active) {
        opacity: 0;
        transform: none;
    }
}

/* Visually Hidden (for screen readers) */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.device-placeholder {
    position: relative;
    z-index: 1;
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
    text-align: center;
    padding: var(--space-xl);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 1023px) {
    .hero {
        padding: var(--space-6xl) 0 var(--space-5xl);
    }
    
    .device-mock {
        max-width: 280px;
        margin: 0 auto;
    }
}

/* ============================================
   Value Pillars Section
   ============================================ */

.value-pillars {
    padding: var(--space-8xl) 0;
    background: var(--color-bg-secondary);
    position: relative;
}

.value-pillars::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.value-pillars-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-top: var(--space-5xl);
}

@media (min-width: 640px) {
    .value-pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .value-pillars-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-xl);
    }
}

.value-card {
    background: var(--color-bg-glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-3xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    will-change: transform;
}

a.value-card {
    text-decoration: none;
    color: inherit;
    display: block;
}

a.value-card:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.value-card:hover {
    background: var(--color-bg-surface-hover);
    border-color: var(--color-border-glow);
    transform: translateY(-4px) scale(1.01);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 122, 255, 0.1);
}

.value-card:active {
    transform: translateY(-2px) scale(0.99);
}

.value-card:hover::before {
    opacity: 1;
}

.value-card-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    border-radius: var(--radius-lg);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1;
    transition: all var(--transition-base);
}

.value-card:hover .value-card-icon {
    background: var(--color-primary);
    color: var(--color-text-primary);
    transform: scale(1.05);
}

.value-card-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.value-card-description {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin: 0;
}

/* ============================================
   Visual Section (Screenshots)
   ============================================ */

.visual-section {
    padding: var(--space-8xl) 0;
    position: relative;
}

.visual-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    margin-top: var(--space-5xl);
}

@media (min-width: 768px) {
    .screenshot-gallery {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-2xl);
    }
}

.screenshot-item {
    background: var(--color-bg-glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

.screenshot-item:hover {
    background: var(--color-bg-surface-hover);
    border-color: var(--color-border-glow);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.screenshot-placeholder {
    width: 100%;
    aspect-ratio: 9 / 19.5;
    background: linear-gradient(135deg, var(--color-bg-elevated) 0%, var(--color-bg-secondary) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.screenshot-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0, 122, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(52, 199, 89, 0.08) 0%, transparent 50%);
    opacity: 0.6;
}

.screenshot-placeholder-text {
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.screenshot-caption {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.screenshot-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-primary-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin-top: var(--space-sm);
}

/* ============================================
   Who It's For Section
   ============================================ */

.who-section {
    padding: var(--space-8xl) 0;
    background: var(--color-bg-secondary);
    position: relative;
}

.who-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.who-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.who-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-2xl);
}

.who-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-3xl);
}

.who-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .who-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

.who-list-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.who-list-item::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: 600;
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.who-list-item strong {
    display: block;
    margin-bottom: var(--space-xs);
}

/* ============================================
   Beta Disclaimer
   ============================================ */

.beta-section {
    padding: var(--space-6xl) 0;
    text-align: center;
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.beta-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--color-primary-light);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-glow);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xl);
}

.beta-description {
    max-width: 600px;
    margin: 0 auto;
    font-size: var(--text-base);
    color: var(--color-text-tertiary);
    line-height: var(--leading-relaxed);
}

/* ============================================
   Content Cards (Support/Privacy/Terms)
   ============================================ */

.content-section {
    padding: var(--space-8xl) 0;
}

.content-card {
    background: var(--color-bg-glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-5xl);
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .content-card {
        padding: var(--space-3xl);
    }
}

.content-card h2 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-xl);
}

.content-card h3 {
    font-size: var(--text-2xl);
    margin-top: var(--space-4xl);
    margin-bottom: var(--space-xl);
}

.content-card h3:first-of-type {
    margin-top: 0;
}

.content-card h4 {
    font-size: var(--text-xl);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
    font-weight: 600;
}

.content-card a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-color: rgba(0, 122, 255, 0.3);
    text-underline-offset: 3px;
    transition: all var(--transition-fast);
}

.content-card a:hover {
    color: var(--color-primary-hover);
    text-decoration-color: var(--color-primary);
}

/* ============================================
   Footer
   ============================================ */

footer {
    margin-top: auto;
    padding: var(--space-6xl) 0 var(--space-4xl);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border-subtle);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0.3;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.footer-nav {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: wrap;
    justify-content: center;
}

.copyright {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* ============================================
   Utility Classes
   ============================================ */

.section-title {
    font-size: var(--text-4xl);
    text-align: center;
    margin-bottom: var(--space-2xl);
    color: var(--color-text-primary);
}

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

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

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

@media (max-width: 420px) {
    .hero {
        padding: var(--space-5xl) 0 var(--space-4xl);
    }
    
    .hero-cta-group {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta,
    .hero-cta-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .value-pillars,
    .visual-section,
    .who-section,
    .content-section {
        padding: var(--space-5xl) 0;
    }
    
    .content-card {
        padding: var(--space-2xl);
    }
    
    .device-mock {
        width: 280px;
        height: 560px;
    }
}

@media (max-width: 767px) {
    .hero-content {
        gap: var(--space-4xl);
    }
    
    .value-pillars-grid {
        gap: var(--space-xl);
    }
    
    .footer-nav {
        flex-direction: column;
        gap: var(--space-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 states for keyboard navigation */
a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 0 6px rgba(0, 122, 255, 0.4), 0 0 0 2px rgba(0, 122, 255, 0.2), 0 0 20px rgba(0, 122, 255, 0.3);
    transition: outline-offset var(--transition-fast), box-shadow var(--transition-fast);
    z-index: 1;
    position: relative;
}

a:focus-visible:active,
button:focus-visible:active {
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.3), 0 0 0 1px rgba(0, 122, 255, 0.2);
}

/* ============================================
   Feature Pages
   ============================================ */

/* Feature page content max-width for readability */
.feature-content {
    max-width: 68ch;
    margin: 0 auto;
}

.feature-content h2 {
    font-size: var(--text-3xl);
    margin-top: var(--space-5xl);
    margin-bottom: var(--space-xl);
    color: var(--color-text-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: var(--leading-tight);
}

.feature-content h2:first-of-type {
    margin-top: var(--space-4xl);
}

.feature-content h3 {
    font-size: var(--text-xl);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
    font-weight: 600;
    line-height: var(--leading-snug);
}

.feature-content p {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-xl);
    color: var(--color-text-secondary);
}

.feature-content p + p {
    margin-top: calc(-1 * var(--space-lg));
}

/* CTA Strip */
.feature-cta-strip {
    background: var(--color-bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin: var(--space-3xl) 0;
    text-align: center;
}

.feature-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.feature-cta-note {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--space-sm);
}

/* Last Updated */
.feature-last-updated {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    text-align: center;
    margin-top: var(--space-3xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border-subtle);
}

/* Breadcrumb */
.breadcrumb {
    font-size: var(--text-sm);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border-subtle);
}

.breadcrumb a {
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-text-secondary);
}

.breadcrumb span {
    color: var(--color-text-muted);
    margin: 0 var(--space-xs);
}

/* Capability Grid */
.capability-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

@media (min-width: 768px) {
    .capability-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .capability-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.capability-card {
    background: var(--color-bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.capability-card:hover {
    background: var(--color-bg-surface-hover);
    border-color: var(--color-border-glow);
    transform: translateY(-2px) scale(1.01);
    box-shadow: var(--shadow-md), 0 0 30px rgba(0, 122, 255, 0.1);
}

.capability-card:active {
    transform: translateY(0) scale(0.99);
}

.capability-card-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.capability-card-title::before {
    content: '•';
    color: var(--color-primary);
    font-size: var(--text-lg);
    line-height: 1;
}

.capability-card-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
    margin: 0;
}

/* Feature Page Two-Column Bullet Grid */
.feature-bullet-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.feature-bullet-grid h2 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.feature-bullet-grid ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.feature-bullet-grid li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.feature-bullet-grid li > span:first-child {
    color: var(--color-primary);
    font-size: var(--text-sm);
    flex-shrink: 0;
    margin-top: 3px;
    line-height: 1.2;
    opacity: 0.9;
}

.feature-bullet-grid li > span:last-child {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.5;
}

@media (min-width: 768px) {
    .feature-bullet-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-3xl);
    }
}

/* Feature Page Grouped Visual Storytelling */
.feature-screenshot-group {
    margin-bottom: var(--space-4xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
}

/* Subtle Asymmetry Variation - Alternate alignment across pages */
.feature-screenshot-group.align-left {
    align-items: flex-start;
}

.feature-screenshot-group.align-right {
    align-items: flex-end;
}

@media (min-width: 768px) {
    .feature-screenshot-group.align-left .feature-screenshot-primary {
        margin-left: 0;
        margin-right: auto;
    }
    
    .feature-screenshot-group.align-right .feature-screenshot-primary {
        margin-left: auto;
        margin-right: 0;
    }
}

/* Primary Screenshot - Large, Visually Dominant */
.feature-screenshot-primary {
    max-width: 500px;
    width: 100%;
    max-height: 450px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.feature-screenshot-primary picture,
.feature-screenshot-primary img {
    width: 100%;
    height: auto;
    max-height: 450px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    display: block;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45), 0 6px 16px rgba(0, 0, 0, 0.25);
    background: var(--color-bg-elevated);
    padding: var(--space-xs);
}

.feature-screenshot-primary-caption {
    text-align: center;
    margin-top: var(--space-xs);
    color: var(--color-text-tertiary);
    font-size: var(--text-xs);
    max-width: 500px;
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    opacity: 0.8;
}

/* Secondary Screenshots - Side-by-Side on Desktop */
.feature-screenshot-secondary-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.feature-screenshot-secondary {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-screenshot-secondary picture,
.feature-screenshot-secondary img {
    width: 100%;
    height: auto;
    max-height: 280px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    display: block;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.15);
}

.feature-screenshot-secondary-caption {
    text-align: center;
    margin-top: var(--space-xs);
    color: var(--color-text-tertiary);
    font-size: var(--text-xs);
    max-width: 100%;
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    opacity: 0.7;
}

/* Placeholder in Secondary Group */
.feature-screenshot-secondary .feature-placeholder {
    max-height: 280px;
    width: 100%;
    aspect-ratio: 9 / 19.5;
}

/* Desktop/Tablet Layout */
@media (min-width: 768px) {
    .feature-screenshot-secondary-group {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
        max-width: 700px;
    }
    
    .feature-screenshot-primary {
        max-width: 600px;
    }
    
    /* Subtle offset for asymmetry */
    .feature-screenshot-group.align-left .feature-screenshot-secondary-group {
        margin-left: 0;
        margin-right: auto;
    }
    
    .feature-screenshot-group.align-right .feature-screenshot-secondary-group {
        margin-left: auto;
        margin-right: 0;
    }
}

/* Mobile Horizontal Scroll for Secondary Screenshots */
@media (max-width: 767px) {
    .feature-screenshot-secondary-group {
        display: flex;
        flex-direction: row;
        gap: var(--space-lg);
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding-bottom: var(--space-sm);
        scrollbar-width: thin;
        scrollbar-color: var(--color-border) transparent;
    }
    
    .feature-screenshot-secondary-group::-webkit-scrollbar {
        height: 4px;
    }
    
    .feature-screenshot-secondary-group::-webkit-scrollbar-track {
        background: transparent;
    }
    
    .feature-screenshot-secondary-group::-webkit-scrollbar-thumb {
        background: var(--color-border);
        border-radius: var(--radius-full);
    }
    
    .feature-screenshot-secondary {
        flex: 0 0 280px;
        scroll-snap-align: start;
        max-width: 280px;
    }
    
    .feature-screenshot-secondary picture,
    .feature-screenshot-secondary img,
    .feature-screenshot-secondary .feature-placeholder {
        max-height: 280px;
        width: 280px;
    }
}

/* Premium Placeholder for Feature Pages */
.feature-placeholder {
    width: 100%;
    aspect-ratio: 9 / 19.5;
    background: linear-gradient(135deg, var(--color-bg-elevated) 0%, var(--color-bg-secondary) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl);
    position: relative;
    overflow: hidden;
}

.feature-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0, 122, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(52, 199, 89, 0.06) 0%, transparent 50%);
    opacity: 0.6;
}

.feature-placeholder-icon {
    font-size: 48px;
    opacity: 0.6;
    margin-bottom: var(--space-lg);
    position: relative;
    z-index: 1;
}

.feature-placeholder-title {
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    font-weight: 500;
    text-align: center;
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.feature-placeholder-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-text-tertiary);
    position: relative;
    z-index: 1;
    margin-top: var(--space-sm);
}

/* Planned/Coming Soon Badge */
.planned-section {
    margin-top: var(--space-5xl);
    padding-top: var(--space-4xl);
    border-top: 1px solid var(--color-border);
}

.planned-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.planned-item {
    opacity: 0.7;
}

/* Screenshot Frame Component */
.screenshot-frame-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-top: var(--space-5xl);
}

@media (min-width: 768px) {
    .screenshot-frame-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .content-section > .container > div[style*="grid-template-columns: 1fr"] {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

.screenshot-frame {
    background: var(--color-bg-glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.screenshot-frame:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 122, 255, 0.15);
}

.screenshot-frame:active {
    transform: translateY(-2px) scale(1);
}

.screenshot-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    pointer-events: none;
    opacity: 0.4;
}

.screenshot-frame::after {
    content: '';
    position: absolute;
    top: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    opacity: 0.6;
}

.screenshot-frame-image {
    width: 100%;
    aspect-ratio: 9 / 16;
    object-fit: cover;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-elevated) 100%);
    display: block;
    border: 1px solid var(--color-border-subtle);
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.3);
}

.screenshot-frame-caption {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    text-align: center;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-subtle);
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-text-primary);
    padding: var(--space-md);
    z-index: 10000;
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
    top: 0;
}