/* ============================================
   On Device AI - Design System & Global Styles
   ============================================ */

/* --- CSS Custom Properties (Light Mode Default) --- */
:root {
    /* Brand Colors (Exaggerated Minimalism) */
    --accent: #0EA5E9;
    /* Sky Blue */
    --accent-light: #38BDF8;
    --accent-dark: #0284C7;
    --accent-glow: rgba(14, 165, 233, 0.15);
    /* Reduced glow */
    --cta-color: #F97316;
    /* Orange for contrast */
    --cta-color-hover: #EA580C;

    /* Surfaces */
    --bg-primary: #ffffff;
    --bg-secondary: #FAFAFA;
    /* Starker contrast */
    --bg-tertiary: #F4F4F5;
    --bg-elevated: #ffffff;

    /* Glass - reduced opacity for less "slop", more solid feel */
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(0, 0, 0, 0.08);
    /* Darker border instead of white */
    --glass-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
    --glass-blur: blur(8px);

    /* Text */
    --text-primary: #0C4A6E;
    /* Deep ocean blue instead of black */
    --text-secondary: #475569;
    --text-tertiary: #94A3B8;
    --text-inverse: #ffffff;

    /* Borders & Shadows */
    --border-light: rgba(15, 23, 42, 0.08);
    --border-medium: rgba(15, 23, 42, 0.15);
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
    --shadow-xl: 0 24px 64px rgba(15, 23, 42, 0.16);

    /* Layout */
    --container-max: 1280px;
    /* slightly wider */
    --container-narrow: 800px;
    --section-padding: 120px;
    /* more whitespace */
    --header-height: 80px;
    /* chunkier header */

    /* Radii - sharper for bento grid */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Typography */
    --font-family: "Work Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-display: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Cascadia Code", monospace;

    --font-size-xs: 0.875rem;
    /* larger base text */
    --font-size-sm: 1rem;
    --font-size-base: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --font-size-5xl: 5rem;
    --font-size-6xl: 7.5rem;
    /* massive text */

    /* Motion */
    --motion-fast: 150ms;
    /* Snappier */
    --motion-normal: 300ms;
    --motion-slow: 500ms;
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    --gradient-hero: var(--bg-primary);
    /* Flat background instead of gradient */
    --gradient-glow: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 60%);
}

/* --- Dark Mode --- */
[data-theme="dark"] {
    --bg-primary: #020617;
    /* Very deep slate */
    --bg-secondary: #0F172A;
    --bg-tertiary: #1E293B;
    --bg-elevated: #0F172A;

    --glass-bg: rgba(15, 23, 42, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-tertiary: #64748B;

    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.15);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.8);

    --gradient-hero: var(--bg-primary);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--motion-fast) var(--ease-smooth);
}

a:hover {
    color: var(--accent-light);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Accessibility (Pro Max Guideline) --- */
:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 2px;
}

button:focus-visible,
a.btn-primary:focus-visible,
a.btn-secondary:focus-visible {
    outline-offset: 6px;
}

/* --- Layout --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.container--narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

.highlight {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 60%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: var(--accent);
    position: relative;
    display: inline-block;
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }

    100% {
        background-position: 200% center;
    }
}

.highlight:hover {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 40%, #a78bfa 60%, var(--accent) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    animation: shimmer 1.5s linear;
}

/* --- Typography --- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

/* --- Glass Card --- */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    transition: transform var(--motion-normal) var(--ease-smooth),
        box-shadow var(--motion-normal) var(--ease-smooth);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* --- Header / Navigation --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: background var(--motion-normal) var(--ease-smooth),
        box-shadow var(--motion-normal) var(--ease-smooth);
}

.site-header:not(.scrolled) .logo {
    color: var(--text-primary);
}

.site-header:not(.scrolled) .nav-links a {
    color: var(--text-secondary);
}

.site-header:not(.scrolled) .nav-links a:hover,
.site-header:not(.scrolled) .nav-links a.active {
    color: var(--accent);
}

.site-header:not(.scrolled) .theme-toggle {
    color: var(--text-secondary);
}

.site-header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-light);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.logo img {
    height: 32px;
    width: 32px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--motion-fast) var(--ease-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--motion-normal) var(--ease-smooth);
    border-radius: 1px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    padding: 8px 20px;
    background: var(--accent);
    color: var(--text-inverse) !important;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: background var(--motion-fast) var(--ease-smooth),
        transform var(--motion-fast) var(--ease-smooth);
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: var(--accent-dark);
    color: var(--text-inverse) !important;
    transform: scale(1.05);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    cursor: pointer;
    padding: 8px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--motion-fast) var(--ease-smooth),
        border-color var(--motion-fast) var(--ease-smooth);
    width: 36px;
    height: 36px;
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    width: 18px;
    height: 18px;
}

[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}

[data-theme="light"] .theme-toggle .icon-sun,
:root:not([data-theme]) .theme-toggle .icon-sun {
    display: none;
}

[data-theme="light"] .theme-toggle .icon-moon,
:root:not([data-theme]) .theme-toggle .icon-moon {
    display: block;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-primary);
    flex-direction: column;
    gap: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--motion-normal) var(--ease-smooth),
        opacity var(--motion-normal) var(--ease-smooth);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
    padding-top: var(--header-height);
    clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
    margin-bottom: -4vh;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.04;
    pointer-events: none;
    z-index: 0;
}

#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding: 80px 0;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.hero-title-line1 {
    display: block;
    font-family: var(--font-display);
    font-size: var(--font-size-5xl);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.0;
}

.hero-title-line2 {
    display: block;
    font-family: var(--font-display);
    font-size: var(--font-size-3xl);
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 60%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 8px;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.hero-badge svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--motion-fast) var(--ease-smooth),
        transform var(--motion-fast) var(--ease-smooth),
        box-shadow var(--motion-fast) var(--ease-smooth);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--accent-dark);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--motion-fast) var(--ease-smooth);
    text-decoration: none;
}

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

.hero-platforms {
    margin-top: 16px;
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* Hero Image / Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-mockup {
    position: relative;
    z-index: 2;
    max-width: 400px;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.4));
}

.device-mockup img {
    border-radius: 20px;
    width: 100%;
}

/* Glow Orbs */
.glow-orbs {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
}

.glow-orb-1 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: -50px;
    right: -50px;
}

.glow-orb-2 {
    width: 200px;
    height: 200px;
    background: #764ba2;
    bottom: -30px;
    left: -30px;
}

.glow-orb-3 {
    width: 150px;
    height: 150px;
    background: var(--accent-light);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Floating UI Badges */
.floating-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    z-index: 3;
    white-space: nowrap;
}

.floating-badge svg {
    width: 14px;
    height: 14px;
    color: var(--accent);
}

.floating-badge.badge-ai {
    top: 15%;
    right: -10px;
}

.floating-badge.badge-private {
    bottom: 25%;
    left: -20px;
}

.floating-badge.badge-speed {
    top: 50%;
    right: -30px;
}

/* --- Stats Bar --- */
.stats-bar {
    background: var(--bg-primary);
    padding: 48px 0 40px;
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
}

.stat-item {
    padding: 32px 24px;
    text-align: center;
    position: relative;
}

.stat-item+.stat-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    height: 60%;
    width: 1px;
    background: var(--border-light);
}

.stat-number {
    font-family: var(--font-display);
    font-size: var(--font-size-4xl);
    font-weight: 800;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
    display: block;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* --- Features Section --- */
.features {
    background: var(--bg-secondary);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(auto, auto);
    gap: 32px;
    /* Increased gap */
}

.feature-card.span-2 {
    grid-column: span 2;
}

.feature-card.span-3 {
    grid-column: span 3;
}

@media (max-width: 992px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-card.span-3,
    .feature-card.span-2 {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .feature-card.span-3,
    .feature-card.span-2 {
        grid-column: span 1;
    }
}

.feature-card {
    padding: 0;
    overflow: hidden;
    cursor: pointer;
    /* Pro-max: interactive element needs pointer */
    display: flex;
    flex-direction: column;
}
.feature-card .feature-body {
    padding: 48px 40px;
    min-height: 280px;
    /* Huge padding */
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.feature-card h3 {
    font-size: var(--font-size-2xl);
    /* Massive headings */
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.feature-card.span-2 h3 {
    font-size: var(--font-size-3xl);
    /* Even bigger for bento */
}

.feature-card p {
    font-size: var(--font-size-base);
    /* Larger body copy */
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: auto;
    /* Push link to bottom */
}

.feature-card .feature-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 16px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--accent);
}

.feature-card .feature-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--motion-fast) var(--ease-smooth);
}

.feature-card:hover .feature-link svg {
    transform: translateX(4px);
}

/* --- Technology / Comparison Section --- */
.technology {
    background: var(--bg-primary);
    position: relative;
}

.technology::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(0, 200, 200, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 32px;
    align-items: start;
}

.comparison-card {
    padding: 40px;
    text-align: center;
}

.comparison-card.cloud {
    margin-top: 40px;
}

.comparison-card.local {
    margin-top: 0;
}

.comparison-card.cloud {
    border-color: rgba(255, 100, 100, 0.2);
    opacity: 0.85;
}

.comparison-card.local {
    border: 2px solid var(--accent);
    position: relative;
    box-shadow: 0 0 40px rgba(0, 200, 200, 0.12);
}

.comparison-card.local::before {
    content: 'This App';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--accent);
    color: #ffffff;
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-card .card-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    color: var(--text-secondary);
}

.comparison-card.local .card-icon {
    color: var(--accent);
}

.comparison-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 24px;
}

.workflow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.workflow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
}

.workflow-step .step-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(8px);
}

.workflow-step .step-icon svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

.comparison-card.local .workflow-step .step-icon svg {
    color: var(--accent);
}

.workflow-step .step-text {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-weight: 500;
}

.workflow-arrow {
    color: var(--text-tertiary);
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    padding-bottom: 20px;
}

.comparison-points {
    list-style: none;
    text-align: left;
}

.comparison-points li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.comparison-points li svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.comparison-card.cloud .comparison-points li svg {
    color: #ff6b6b;
}

.comparison-card.local .comparison-points li svg {
    color: var(--accent);
}

/* --- Privacy Section --- */
.privacy {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.privacy::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 50%, rgba(0, 200, 200, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.privacy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.privacy-text h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.privacy-text p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.privacy-benefits {
    list-style: none;
}

.privacy-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
}

.privacy-benefits li:last-child {
    border-bottom: none;
}

.privacy-benefits .benefit-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: var(--radius-md);
    color: var(--accent);
    flex-shrink: 0;
}

.privacy-benefits .benefit-icon svg {
    width: 20px;
    height: 20px;
}

.privacy-benefits h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 4px;
}

.privacy-benefits p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Privacy Visual (Data Flow Diagram) */
.privacy-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.data-flow-diagram {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
}

.device-boundary {
    position: absolute;
    inset: 0;
    border: 2px dashed var(--accent);
    border-radius: var(--radius-xl);
    opacity: 0.3;
}

.device-boundary::after {
    content: 'Your Device';
    position: absolute;
    top: -12px;
    left: 24px;
    padding: 0 8px;
    background: var(--bg-secondary);
    font-size: var(--font-size-xs);
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.flow-node {
    position: absolute;
    padding: 12px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    gap: 8px;
}

.flow-node svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

.flow-node.node-input {
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
}

.flow-node.node-process {
    top: 45%;
    left: 50%;
    transform: translateX(-50%);
}

.flow-node.node-output {
    top: 75%;
    left: 50%;
    transform: translateX(-50%);
}

.privacy-shield {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 64px;
    height: 64px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 30px var(--accent-glow);
    z-index: 2;
}

.privacy-shield svg {
    width: 28px;
    height: 28px;
    color: #ffffff;
}

.blocked-indicator {
    position: absolute;
    bottom: -10px;
    right: -30px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 100, 100, 0.15);
    border: 1px solid rgba(255, 100, 100, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: #ff6b6b;
    font-weight: 600;
}

/* --- Platforms Section --- */
.platforms-section {
    background: var(--bg-primary);
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.platform-card {
    padding: 32px;
    text-align: center;
    perspective: 800px;
}

.platform-card .platform-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    color: var(--accent);
}

.platform-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 8px;
}

.platform-card .platform-subtitle {
    font-size: var(--font-size-sm);
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 16px;
}

.platform-card ul {
    list-style: none;
    text-align: left;
}

.platform-card ul li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.platform-card ul li svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
    flex-shrink: 0;
}

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

.platforms-cta .cta-note {
    margin-top: 16px;
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* --- FAQ Section --- */
.faq {
    background: var(--bg-secondary);
}

.faq-list {
    max-width: 760px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-light);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-family);
    gap: 16px;
}

.faq-question:hover {
    color: var(--accent);
}

.faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: transform var(--motion-normal) var(--ease-smooth);
    color: var(--text-tertiary);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--accent);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--motion-slow) var(--ease-smooth);
}

.faq-answer-inner {
    padding: 0 0 24px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --- Contact Section --- */
.contact {
    background: var(--bg-primary);
    text-align: center;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-lg);
    margin-top: 8px;
}

/* --- Footer --- */
.site-footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-light);
    background: var(--bg-primary);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-copy {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* --- Scroll Reveal (initial hidden state) --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
        --font-size-5xl: 2.8rem;
        --font-size-4xl: 2.2rem;
    }

    .hero-inner {
        gap: 48px;
    }

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

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .comparison-grid {
        grid-template-columns: 1fr 1fr;
    }

    .comparison-card.cloud {
        margin-top: 20px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
        --font-size-5xl: 2.2rem;
        --font-size-4xl: 1.8rem;
        --font-size-3xl: 1.5rem;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background: var(--bg-elevated);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        padding: 32px 24px;
        gap: 24px;
        z-index: 999;
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 40px 0;
    }

    .hero-description {
        max-width: 100%;
    }

    .hero-badges {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .device-mockup {
        max-width: 280px;
    }

    .floating-badge {
        display: none;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .comparison-card.cloud {
        margin-top: 0;
    }

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

    .stat-item+.stat-item::before {
        display: none;
    }

    .privacy-content {
        grid-template-columns: 1fr;
    }

    .privacy-visual {
        order: -1;
    }

    .platform-grid {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-5xl: 1.8rem;
        --font-size-4xl: 1.5rem;
    }

    .container {
        padding: 0 16px;
    }

    .hero-badges {
        gap: 8px;
    }

    .hero-badge {
        font-size: var(--font-size-xs);
        padding: 6px 12px;
    }
}

/* --- Policy Pages --- */
.policy-page main {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 80px;
}

.policy-page h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: 24px;
}

.policy-page h2 {
    font-size: var(--font-size-2xl);
    margin-top: 48px;
    margin-bottom: 16px;
}

.policy-page p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.policy-page ul {
    margin: 16px 0;
    padding-left: 24px;
}

.policy-page ul li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.7;
}

.policy-page a {
    color: var(--accent);
}