/* Anti-FOUC: Hide body until i18n is ready */
body:not(.i18n-ready) {
    opacity: 0;
}

body.i18n-ready {
    opacity: 1;
    transition: opacity 0.15s ease-out;
}

:root {
    /* Silvermap/Rollify Design System V2.2 Palette */
    
    /* Backgrounds: Film Grain & Premium Surface */
    --bg-color: #1A1815;
    --surface-color: #2A2520;
    --surface-border: #3D3530;
    
    /* Typography */
    --text-primary: #FFF9F0;
    --text-secondary: #C5B095; /* Fixed contrast (prev: #B09980) */
    
    /* Accents: Film Amber & Copper */
    --accent-color: #D4A574;
    --accent-hover: #E8C9A8;
    --accent-secondary: #B87333;
    
    /* Status & Utility */
    --error-color: #CF6679;
    --success-color: #10B981;
    --overlay-color: rgba(26, 24, 21, 0.85);

    /* Spacing - Standardized */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 6rem;

    /* Border Radius - Standardized to 8/16px */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Typography */
    --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-size-base: 16px;
    --font-size-hero: 3.5rem;
    --font-size-h2: 2.4rem;
    --font-size-h3: 1.4rem;

    /* Animation - Smooth & Premium */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-fast: 0.2s;
    --duration-normal: 0.35s;
    --duration-slow: 0.5s;
    --duration-reveal: 0.6s;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Film Grain Overlay (Organic ISO 800 Style) */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: overlay;
    opacity: 0.12;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.5'/%3E%3C/svg%3E");
    transform: scale(1.5);
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--duration-fast) var(--ease-smooth), 
                color var(--duration-fast) var(--ease-smooth);
}

a:hover {
    opacity: 0.85;
}

/* Utilities */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(26, 24, 21, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--surface-border);
    padding: var(--spacing-sm) 0;
    /* Smart header animation */
    transform: translateY(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.3s ease;
}

/* iOS Safari notch handling - only applies on iOS devices */
@supports (padding-top: env(safe-area-inset-top)) {
    header {
        padding-top: max(var(--spacing-sm), env(safe-area-inset-top));
    }
}

header.header-hidden {
    transform: translateY(-100%);
}

header.header-scrolled {
    background: rgba(26, 24, 21, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

/* Compensate for fixed header */
main {
    padding-top: 70px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--duration-normal) var(--ease-smooth),
                opacity var(--duration-fast) var(--ease-smooth);
}

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

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

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

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }
}

.nav-links {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg-color);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out-expo);
    z-index: 999;
    padding: var(--spacing-lg);
}

.nav-links.active {
    transform: translateX(0);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
        position: static;
        width: auto;
        height: auto;
        flex-direction: row;
        background: none;
        border: none;
        padding: 0;
        gap: var(--spacing-md);
        font-size: 0.9rem;
        font-weight: 600;
        align-items: center;
        transform: none;
    }
}

.lang-switch {
    background: none;
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    transition: color var(--duration-fast) var(--ease-smooth),
                border-color var(--duration-fast) var(--ease-smooth);
    font-family: var(--font-family);
    display: flex;
    align-items: center;
    gap: 4px;
}

.lang-icon {
    font-size: 0.9rem;
}

.lang-switch:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.cta-button-small {
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    transition: background-color var(--duration-fast) var(--ease-smooth),
                transform var(--duration-normal) var(--ease-bounce);
}

.cta-button-small:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    opacity: 1;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
    padding-top: calc(var(--spacing-xl) + 80px); /* Extra space for fixed header */
    padding-bottom: 0;
    position: relative;
    overflow: visible;
}

.hero h1 {
    font-size: 2.2rem;
    line-height: 1.15;
    margin: 0 auto var(--spacing-sm) auto;
    max-width: 800px;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.03em;
}

@media (min-width: 768px) {
    .hero h1 { font-size: var(--font-size-hero); }
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin: 0 auto var(--spacing-md) auto;
    line-height: 1.5;
    font-weight: 400;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

/* iOS Badge with Pulse Animation */
.ios-badge {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0 auto var(--spacing-md) auto;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.ios-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.15); }
}

/* ========================================
   EMAIL CAPTURE FORM
   ======================================== */
.email-capture {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 440px;
    margin: 0 auto;
    align-items: center;
}

@media (min-width: 768px) {
    .email-capture {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Cloudflare Turnstile - Below form, centered */
.turnstile-wrapper {
    display: none; /* Hidden by default, shown only if challenge needed */
    justify-content: center;
    margin-top: 20px;
    margin-bottom: 8px;
}

.cf-turnstile {
    transform: scale(0.85);
    transform-origin: center;
}

/* Legacy styles (keep for backward compatibility) */
.email-capture .cf-turnstile {
    margin-top: 12px;
    display: flex;
    justify-content: center;
}

/* Legacy badge style (keep for backward compatibility) */
.turnstile-badge {
    display: flex;
    justify-content: center;
    margin-top: 16px;
    opacity: 0.7;
    transition: opacity var(--duration-normal) var(--ease-smooth);
}

.turnstile-badge:hover {
    opacity: 1;
}

.email-capture input {
    flex: 1;
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--duration-normal) var(--ease-smooth), 
                box-shadow var(--duration-normal) var(--ease-smooth);
    width: 100%;
}

.email-capture input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.2);
}

.email-capture input::placeholder {
    color: var(--text-secondary);
}

.email-capture input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* CTA Button - Amber accent color */
.email-capture button {
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color var(--duration-normal) var(--ease-smooth), 
                transform var(--duration-normal) var(--ease-bounce), 
                box-shadow var(--duration-normal) var(--ease-smooth);
    white-space: nowrap;
    position: relative;
    will-change: transform;
    flex-shrink: 0;
}

.email-capture button:hover:not(:disabled) {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(212, 165, 116, 0.3);
}

.email-capture button:active:not(:disabled) {
    transform: translateY(0);
}

.email-capture button:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

/* Button loader */
.btn-loader {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--bg-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.email-capture button.loading .btn-text {
    visibility: hidden;
}

.email-capture button.loading .btn-loader {
    display: inline-block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Form Feedback */
.form-feedback {
    min-height: 28px;
    margin-top: var(--spacing-xs);
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity var(--duration-normal) var(--ease-smooth),
                transform var(--duration-normal) var(--ease-smooth);
}

.form-feedback.success {
    color: var(--success-color);
}

.form-feedback.success::before {
    content: '✓ ';
}

.form-feedback.error {
    color: var(--error-color);
}

/* Success animation */
@keyframes successPop {
    0% { transform: scale(0.9); opacity: 0; }
    60% { transform: scale(1.02); }
    100% { transform: scale(1); opacity: 1; }
}

.form-feedback.success {
    animation: successPop 0.5s var(--ease-out-expo) forwards;
}

/* Social Proof avec Avatars - P1.3 */
.social-proof {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: var(--spacing-sm) auto 0 auto;
}

.social-proof-avatars {
    display: flex;
    align-items: center;
}

.social-proof-avatars .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--surface-color);
    border: 2px solid var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    margin-left: -10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.social-proof-avatars .avatar:first-child {
    margin-left: 0;
}

.social-proof-text {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.social-proof-text strong {
    color: var(--accent-color);
    font-weight: 700;
}

.social-proof-icon {
    color: var(--success-color);
    font-weight: bold;
}

/* Hero Pills (key differentiators) */
.hero-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: var(--spacing-md) auto 0 auto;
    max-width: 550px;
}

.pill {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Early Adopter Incentive */
.early-adopter-incentive {
    background: linear-gradient(90deg, rgba(212, 165, 116, 0.15) 0%, rgba(184, 115, 51, 0.15) 100%);
    border: 1px solid var(--accent-color);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--accent-hover);
    margin-top: var(--spacing-sm);
    display: inline-block;
}

.early-adopter-incentive strong {
    color: var(--accent-color);
}

/* Hero Visual (Floating Phone) - P0.3 Agrandir mobile */
.hero-visual-wrapper {
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 10;
    width: 100%;
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.hero-visual {
    width: 85vw;
    max-width: 320px;
    aspect-ratio: 320 / 693;
    border-radius: 36px;
    border: 6px solid #1a1a1a;
    box-shadow: 
        0 0 0 2px #333,
        0 40px 80px -20px rgba(0,0,0,0.7);
    overflow: hidden;
    transform: rotateX(5deg);
    transition: transform var(--duration-slow) var(--ease-out-expo),
                box-shadow var(--duration-slow) var(--ease-smooth);
    background: var(--bg-color);
    contain: layout style;
    will-change: transform;
}

.hero-visual:hover {
    transform: rotateX(0deg) translateY(-10px);
    box-shadow: 
        0 0 0 2px #333,
        0 50px 100px -25px rgba(0,0,0,0.8);
}

.hero-visual img {
    width: 100%;
    height: auto;
    display: block;
}

@media (min-width: 768px) {
    .hero-visual {
        width: 320px;
        max-width: 320px;
    }
}

/* ========================================
   HOW IT WORKS SECTION - P1.1
   ======================================== */
.how-it-works {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, rgba(212, 165, 116, 0.03) 0%, transparent 100%);
}

.steps-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .steps-grid {
        flex-direction: row;
        justify-content: center;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

.step-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    width: 100%;
    max-width: 260px;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: relative;
    transition: transform var(--duration-normal) var(--ease-out-expo),
                border-color var(--duration-normal) var(--ease-smooth);
}

.step-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
}

.step-number {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: var(--bg-color);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

.step-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.step-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.step-arrow {
    font-size: 1.5rem;
    color: var(--accent-color);
    display: none;
}

@media (min-width: 768px) {
    .step-arrow {
        display: flex;
        align-items: center;
        padding-top: var(--spacing-lg);
    }
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-eyebrow {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-h2);
    }
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   SCREENSHOTS SHOWCASE
   ======================================== */
.showcase {
    padding: var(--spacing-xl) 0;
    overflow-x: clip;
    overflow-y: visible;
}

/* Swipe Hint Mobile - P2.3 */
.swipe-hint {
    display: block;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    animation: swipeHint 2s ease-in-out infinite;
}

@keyframes swipeHint {
    0%, 100% { opacity: 0.6; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(5px); }
}

@media (min-width: 768px) {
    .swipe-hint {
        display: none;
    }
}

.scroller-wrapper {
    position: relative;
}

.scroller-fade {
    position: absolute;
    top: 0;
    bottom: 60px;
    width: 40px;
    pointer-events: none;
    z-index: 10;
}

.scroller-fade-left {
    left: 0;
    background: linear-gradient(to right, var(--bg-color) 0%, transparent 100%);
}

.scroller-fade-right {
    right: 0;
    background: linear-gradient(to left, var(--bg-color) 0%, transparent 100%);
}

/* Scroller Arrows */
.scroller-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-70%);
    z-index: 20;
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background-color var(--duration-fast) var(--ease-smooth),
                color var(--duration-fast) var(--ease-smooth),
                border-color var(--duration-fast) var(--ease-smooth),
                transform var(--duration-normal) var(--ease-bounce);
}

.scroller-arrow:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    transform: translateY(-70%) scale(1.05);
}

.scroller-arrow-left { left: -22px; }
.scroller-arrow-right { right: -22px; }

@media (min-width: 768px) {
    .scroller-arrow {
        display: flex;
    }
    .scroller-fade {
        width: 80px;
    }
}

.scroller {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.scroller::-webkit-scrollbar {
    display: none;
}

.screenshot-item {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    scroll-snap-align: center;
}

.screenshot-container {
    width: 240px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 3px solid var(--surface-border);
    aspect-ratio: 9/19.5;
    background: var(--surface-color);
    transition: transform var(--duration-normal) var(--ease-out-expo), 
                border-color var(--duration-normal) var(--ease-smooth), 
                box-shadow var(--duration-normal) var(--ease-smooth);
    contain: layout style paint;
    content-visibility: auto;
    contain-intrinsic-size: 240px 520px;
    will-change: transform;
}

@media (min-width: 768px) {
    .screenshot-container {
        width: 280px;
    }
}

.screenshot-container:hover {
    transform: scale(1.04) translateY(-4px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 40px rgba(212, 165, 116, 0.2);
}

.screenshot-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.screenshot-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Scroller Dots */
.scroller-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-md);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--surface-border);
    border: none;
    cursor: pointer;
    transition: background-color var(--duration-normal) var(--ease-smooth),
                width var(--duration-normal) var(--ease-out-expo),
                border-radius var(--duration-normal) var(--ease-smooth);
    padding: 0;
}

.dot:hover {
    background: var(--text-secondary);
}

.dot.active {
    background: var(--accent-color);
    width: 24px;
    border-radius: 4px;
}

/* ========================================
   FEATURES GRID
   ======================================== */
.features {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--surface-border);
    position: relative;
    z-index: 20;
    background: var(--bg-color);
}

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

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

.feature-card {
    background: var(--surface-color);
    padding: var(--spacing-md);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    transition: transform var(--duration-normal) var(--ease-out-expo), 
                border-color var(--duration-normal) var(--ease-smooth), 
                box-shadow var(--duration-normal) var(--ease-smooth),
                opacity var(--duration-reveal) var(--ease-smooth);
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    will-change: transform, opacity;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--text-secondary);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

/* Highlighted Feature Card */
.feature-card-highlight {
    border-color: var(--accent-color);
    background: linear-gradient(135deg, var(--surface-color) 0%, rgba(212, 165, 116, 0.1) 100%);
}

.feature-card-highlight:hover {
    border-color: var(--accent-hover);
}

.feature-badge {
    position: absolute;
    top: -10px;
    right: var(--spacing-sm);
    background: var(--accent-color);
    color: var(--bg-color);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.feature-icon {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 165, 116, 0.12);
    border-radius: var(--radius-md);
}

.feature-icon svg {
    stroke: var(--accent-color);
}

.feature-card h3 {
    font-size: var(--font-size-h3);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========================================
   FAQ
   ======================================== */
.faq {
    padding: var(--spacing-xl) 0;
}

.faq .container {
    max-width: 700px;
}

.faq-list {
    margin-top: var(--spacing-md);
}

details {
    border-bottom: 1px solid var(--surface-border);
    padding: var(--spacing-sm) 0;
    transition: background var(--duration-normal) var(--ease-smooth),
                padding var(--duration-normal) var(--ease-smooth),
                margin var(--duration-normal) var(--ease-smooth),
                border-radius var(--duration-normal) var(--ease-smooth);
}

details:first-child {
    border-top: 1px solid var(--surface-border);
}

details[open] {
    background: rgba(212, 165, 116, 0.03);
    margin: 0 calc(-1 * var(--spacing-sm));
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
}

summary {
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
    transition: color var(--duration-fast) var(--ease-smooth);
}

summary:hover {
    color: var(--accent-color);
}

summary::-webkit-details-marker {
    display: none;
}

summary::after {
    content: '+';
    font-weight: 400;
    font-size: 1.3rem;
    color: var(--text-secondary);
    transition: transform var(--duration-normal) var(--ease-out-expo), 
                color var(--duration-fast) var(--ease-smooth);
}

details[open] summary::after {
    content: '+';
    transform: rotate(45deg);
    color: var(--accent-color);
}

/* FAQ Answer Animation */
details .faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows var(--duration-normal) var(--ease-out-expo), 
                opacity var(--duration-normal) var(--ease-smooth), 
                padding var(--duration-normal) var(--ease-smooth);
    padding-top: 0;
    padding-bottom: 0;
}

details[open] .faq-answer {
    grid-template-rows: 1fr;
    opacity: 1;
    padding-top: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
}

/* Closing state - animate back to collapsed */
details.closing .faq-answer {
    grid-template-rows: 0fr;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
}

details.closing summary::after {
    transform: rotate(0deg);
}

details .faq-answer > p {
    overflow: hidden;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========================================
   FINAL CTA SECTION
   ======================================== */
.final-cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(212, 165, 116, 0.06) 100%);
    border-top: 1px solid var(--surface-border);
}

.final-cta-content {
    text-align: center;
    max-width: 550px;
    margin: 0 auto;
}

.final-cta h2 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.final-cta h2 .highlight-count {
    color: var(--accent-color);
    background: linear-gradient(90deg, rgba(212, 165, 116, 0.2) 0%, rgba(184, 115, 51, 0.2) 100%);
    padding: 2px 10px;
    border-radius: var(--radius-sm);
}

@media (min-width: 768px) {
    .final-cta h2 {
        font-size: 2.2rem;
    }
}

.final-cta p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.email-capture-final {
    max-width: 460px;
    margin: 0 auto;
}

.final-cta-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
    opacity: 0.8;
}

/* ========================================
   FOOTER
   ======================================== */
footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--surface-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

.footer-email {
    font-size: 0.85rem;
    color: var(--accent-color);
    transition: color var(--duration-fast) var(--ease-smooth);
}

.footer-email:hover {
    color: var(--accent-hover);
    opacity: 1;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--duration-fast) var(--ease-smooth);
}

.footer-links a:hover {
    color: var(--text-primary);
    opacity: 1;
}

.footer-bottom {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--surface-border);
    text-align: center;
}

.footer-trust {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(16px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

.hero > .container > * {
    animation: fadeIn var(--duration-reveal) var(--ease-out-expo) forwards;
}

.hero .ios-badge { animation-delay: 0.05s; opacity: 0; }
.hero h1 { animation-delay: 0.1s; opacity: 0; }
.hero .hero-subtitle { animation-delay: 0.15s; opacity: 0; }
.hero .email-capture { animation-delay: 0.1s; opacity: 0; } /* Prioritized for UX */
.hero .form-feedback { animation-delay: 0.2s; opacity: 0; }
.hero .social-proof { animation-delay: 0.25s; opacity: 0; }
.hero .hero-visual-wrapper { animation-delay: 0.3s; opacity: 0; }

/* Stagger animation for feature cards */
.feature-card:nth-child(1) { transition-delay: 0s; }
.feature-card:nth-child(2) { transition-delay: 0.1s; }
.feature-card:nth-child(3) { transition-delay: 0.2s; }
.feature-card:nth-child(4) { transition-delay: 0.3s; }
.feature-card:nth-child(5) { transition-delay: 0.4s; }
.feature-card:nth-child(6) { transition-delay: 0.5s; }
.feature-card:nth-child(7) { transition-delay: 0.6s; }

/* Wide feature card (spans 2 columns on desktop) */
.feature-card-wide {
    grid-column: 1 / -1;
}

@media (min-width: 768px) {
    .feature-card-wide {
        grid-column: span 2;
    }
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Screenshot animations */
.screenshot-item {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--duration-slow) var(--ease-smooth), 
                transform var(--duration-slow) var(--ease-out-expo);
    will-change: transform, opacity;
}

.screenshot-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.screenshot-item:nth-child(1) { transition-delay: 0s; }
.screenshot-item:nth-child(2) { transition-delay: 0.08s; }
.screenshot-item:nth-child(3) { transition-delay: 0.16s; }
.screenshot-item:nth-child(4) { transition-delay: 0.24s; }
.screenshot-item:nth-child(5) { transition-delay: 0.32s; }

/* ========================================
   MOBILE TAP TARGETS
   ======================================== */
@media (max-width: 767px) {
    .email-capture button {
        min-height: 50px;
        padding: 14px 16px;
        font-size: 0.9rem;
        width: 100%;
    }
    
    .email-capture input {
        min-height: 50px;
    }
    
    summary {
        min-height: 48px;
    }
    
    .cta-button-small {
        padding: 0.7rem 1rem;
    }

    .hamburger {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
details:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero-visual {
        transform: none;
    }
    
    .hero-visual:hover {
        transform: none;
    }
}

/* ========================================
   LEGAL PAGES (Privacy, Terms)
   ======================================== */
.legal-content {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.lang-switch-legal {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    transition: color var(--duration-fast) var(--ease-smooth),
                border-color var(--duration-fast) var(--ease-smooth);
    font-family: var(--font-family);
    z-index: 100;
}

.lang-switch-legal:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.legal-content h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.legal-content h2 {
    font-size: 1.4rem;
    margin: 2rem 0 1rem;
    color: var(--accent-color);
}

.legal-content p,
.legal-content li {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.legal-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-color);
    margin-bottom: 2rem;
    font-weight: 600;
}

.back-link:hover {
    opacity: 0.8;
}

/* ========================================
   404 ERROR PAGE
   ======================================== */
.error-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
}

.lang-switch-404 {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    transition: color var(--duration-fast) var(--ease-smooth),
                border-color var(--duration-fast) var(--ease-smooth);
    font-family: var(--font-family);
    z-index: 100;
}

.lang-switch-404:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.error-code {
    font-size: 8rem;
    font-weight: 800;
    color: var(--accent-color);
    line-height: 1;
    margin-bottom: 1rem;
}

.error-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.error-message {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 400px;
}

.error-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color);
    color: var(--bg-color);
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: background 0.2s ease, transform 0.2s ease;
}

.error-cta:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    opacity: 1;
}

.error-logo {
    position: absolute;
    top: 2rem;
    left: 2rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
}

.error-logo img {
    width: 32px;
    height: 32px;
}

/* ========================================
   UTILITY CLASSES (CSP-safe alternatives)
   ======================================== */
.trust-note {
    font-size: 0.8rem;
    margin-top: 4px;
    opacity: 0.8;
}