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

:root {
    /* Brand Colors from Logo */
    --primary: #8b5cf6;
    --secondary: #22d3ee;
    --accent: #10b981;

    /* Neutrals - Modern with color hints */
    --background: #ffffff;
    --surface: #fafbfc;
    --surface-hover: #f5f7fa;
    --border: #e5e7eb;
    --border-light: #f0f1f3;

    /* Text */
    --text-primary: #171717;
    --text-secondary: #737373;
    --text-tertiary: #a3a3a3;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
    --font-display: var(--font-sans);

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

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #0a0a0a;
        --surface: #151515;
        --surface-hover: #1f1f1f;
        --border: #262626;
        --border-light: #1f1f1f;
        --text-primary: #fafafa;
        --text-secondary: #a3a3a3;
        --text-tertiary: #737373;
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-on-scroll {
    opacity: 0;
}

.animate-on-scroll.animated {
    animation: fadeInUp 0.4s ease forwards;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .header {
        background: rgba(10, 10, 10, 0.95);
    }
}

.header.scrolled {
    box-shadow: 0 2px 12px rgba(139, 92, 246, 0.08), 0 1px 3px rgba(0, 0, 0, 0.05);
    transform: translateY(0);
}

.header {
    transform: translateY(0);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}

.logo img {
    height: 250px;
    width: auto;
    display: block;
}

.logo-text {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
}

/* Language Switch in Navbar */
.language-switch {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.language-switch:hover {
    background: var(--surface);
    border-color: var(--primary);
    color: var(--text-primary);
}

.language-switch .flag {
    font-size: 1.2rem;
    line-height: 1;
}

.language-switch svg {
    opacity: 0.5;
}

/* Buttons */
button,
.btn-primary,
.btn-secondary,
.btn-outline {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    white-space: nowrap;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--background);
    padding: 0 var(--space-4);
    height: 40px;
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:active {
    transform: scale(0.98) translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 0 var(--space-4);
    height: 40px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.btn-secondary:hover {
    background: var(--surface);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    padding: 0 var(--space-4);
    height: 40px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
}

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

.btn-large {
    height: 48px;
    padding: 0 var(--space-6);
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* Hero */
.hero {
    padding: calc(136px + var(--space-4)) 0 var(--space-12);
    background:
        radial-gradient(ellipse at 30% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 80%, rgba(34, 211, 238, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 100%, rgba(16, 185, 129, 0.1) 0%, transparent 60%),
        linear-gradient(180deg, #fdfeff 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.2) 50%, transparent);
}

@media (prefers-color-scheme: dark) {
    .hero {
        background:
            radial-gradient(ellipse at 30% 20%, rgba(139, 92, 246, 0.25) 0%, transparent 60%),
            radial-gradient(ellipse at 70% 80%, rgba(34, 211, 238, 0.25) 0%, transparent 60%),
            radial-gradient(ellipse at 50% 100%, rgba(16, 185, 129, 0.18) 0%, transparent 60%),
            linear-gradient(180deg, #0f0f0f 0%, #0a0a0a 100%);
    }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-16);
    align-items: center;
    margin-bottom: var(--space-12);
}

.hero-content {
    max-width: 620px;
    animation: slideInLeft 0.6s ease forwards;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    animation: scaleIn 0.4s ease forwards;
}

.hero-badge svg {
    animation: pulse 2s ease-in-out infinite;
}

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



.hero-title {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-6);
    font-family: var(--font-display);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

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

.avatar,
.avatar-count {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    border: 2px solid var(--background);
}

.avatar {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    margin-left: -12px;
    transition: all 0.3s ease;
}

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

.avatar:hover {
    transform: scale(1.15) translateY(-3px);
    z-index: 10;
}

.avatar-count {
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border);
    margin-left: -12px;
}

.trust-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.trust-stars {
    font-size: 0.875rem;
    line-height: 1;
}

.trust-text p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

.hero-device {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    position: relative;
    padding-right: var(--space-8);
}

.hero-iphone-image {
    width: 100%;
    max-width: 340px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
    transition: transform 0.6s ease;
    animation: float 6s ease-in-out infinite;
}

.hero-iphone-image:hover {
    transform: scale(1.03) translateY(-8px);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Hero Stats */

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    max-width: 900px;
    margin: 0 auto;
}

.stat {
    text-align: center;
    padding: var(--space-6);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    animation: fadeInUp 0.4s ease forwards;
}

.stat:nth-child(1) {
    animation-delay: 0s;
}

.stat:nth-child(2) {
    animation-delay: 0.1s;
}

.stat:nth-child(3) {
    animation-delay: 0.2s;
}

@media (prefers-color-scheme: dark) {
    .stat {
        background: var(--surface);
    }
}

.stat:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-1);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Section */
.section {
    padding: var(--space-24) 0;
}

.section-dark {
    background:
        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.03) 0%, transparent 70%),
        linear-gradient(180deg, #f5f7fa 0%, #eef1f5 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
    .section-dark {
        background:
            radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 70%),
            var(--surface);
    }
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
    animation: fadeIn 0.5s ease forwards;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-4);
    font-family: var(--font-display);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.step {
    position: relative;
    padding: var(--space-8);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

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

@media (prefers-color-scheme: dark) {
    .step {
        background: var(--surface);
    }
}

.step-number {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    font-size: 3rem;
    font-weight: 700;
    color: var(--border);
    line-height: 1;
}

.step-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-6);
    transition: all 0.3s ease;
}

.step:hover .step-icon {
    transform: scale(1.1) rotate(5deg);
}

.step-icon svg {
    width: 32px;
    height: 32px;
    color: var(--text-primary);
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
    letter-spacing: -0.01em;
}

.step-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.feature-card {
    padding: var(--space-8);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

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

@media (prefers-color-scheme: dark) {
    .feature-card {
        background: var(--surface);
    }
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(34, 211, 238, 0.1));
}

@media (prefers-color-scheme: dark) {
    .feature-icon {
        background: var(--background);
    }
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--text-primary);
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.feature-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.pricing-card {
    position: relative;
    padding: var(--space-8);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .pricing-card {
        background: var(--surface);
    }
}

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

.pricing-card-popular {
    border-color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.pricing-card-popular::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-4);
    background: var(--text-primary);
    color: var(--background);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-header {
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--space-6);
}

.pricing-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.pricing-price {
    margin-bottom: var(--space-2);
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.price-period {
    color: var(--text-secondary);
    font-size: 1rem;
}

.pricing-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-6);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    font-size: 0.9375rem;
}

.feature-item svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.feature-item.disabled {
    color: var(--text-tertiary);
}

.pricing-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Trust Section */
.trust-section {
    padding: var(--space-12) 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
}

.trust-label {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-6);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.payment-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-8);
    flex-wrap: wrap;
}

.payment-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
    opacity: 1;
    transition: all 0.3s ease;
    filter: none;
}

.payment-logo:hover {
    transform: scale(1.1) translateY(-3px);
    opacity: 1;
    filter: brightness(1.1);
}

.payment-logos svg.payment-logo {
    max-width: 80px;
}

/* CTA */
.cta-section {
    padding: var(--space-24) 0;
    background:
        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 70%),
        linear-gradient(135deg, #faf5ff 0%, #f0f9ff 100%);
}

@media (prefers-color-scheme: dark) {
    .cta-section {
        background:
            radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 70%),
            var(--surface);
    }
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-4);
    font-family: var(--font-display);
}

.cta-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary,
.cta-buttons .btn-secondary {
    animation: fadeInUp 0.4s ease forwards;
}

.cta-buttons .btn-primary {
    animation-delay: 0.1s;
}

.cta-buttons .btn-secondary {
    animation-delay: 0.2s;
}

/* Footer */
.footer {
    background: linear-gradient(180deg, #f5f7fa 0%, #eaecf0 100%);
    border-top: 1px solid var(--border);
    padding: var(--space-16) 0 var(--space-8);
}

@media (prefers-color-scheme: dark) {
    .footer {
        background: linear-gradient(180deg, #0f0f0f 0%, #0a0a0a 100%);
    }
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

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

.footer-logo span {
    font-size: 1.125rem;
    font-weight: 600;
}

.footer-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.social-icons {
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

.social-icons a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-icons a:hover {
    background: var(--text-primary);
    border-color: var(--text-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.social-logo {
    width: 20px;
    height: 20px;
    object-fit: contain;
    transition: all 0.3s ease;
}

.social-icons a:hover .social-logo {
    filter: brightness(0) invert(1);
}

.social-icons svg {
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.social-icons a:hover svg {
    color: var(--background);
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.language-toggle:hover {
    background: var(--surface);
    color: var(--text-primary);
}

.language-toggle svg {
    width: 14px;
    height: 14px;
}

/* Extended Features Grid */
.features-grid-extended {
    grid-template-columns: repeat(3, 1fr);
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.testimonial-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .testimonial-card {
        background: var(--surface);
    }
}

.testimonial-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.testimonial-stars {
    font-size: 1rem;
    margin-bottom: var(--space-4);
}

.testimonial-text {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--space-6);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.author-role {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* FAQ */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .faq-item {
        background: var(--surface);
    }
}

.faq-item:hover {
    border-color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    line-height: 1.4;
}

.faq-answer {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

/* Learning Goals Section */
.goals-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.goals-text {
    max-width: 550px;
}

.goals-features {
    margin-top: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.goal-feature-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

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

@media (prefers-color-scheme: dark) {
    .goal-icon {
        background: var(--background);
    }
}

.goal-icon svg {
    color: var(--primary);
}

.goal-feature-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-1);
    color: var(--text-primary);
}

.goal-feature-item p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

.goals-visual {
    display: flex;
    justify-content: center;
}

.goal-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    width: 100%;
    max-width: 450px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.goal-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15);
}

@media (prefers-color-scheme: dark) {
    .goal-card {
        background: var(--surface);
    }
}

.goal-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.goal-card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.goal-badge {
    padding: var(--space-2) var(--space-3);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
}

.goal-item {
    margin-bottom: var(--space-6);
}

.goal-item:last-child {
    margin-bottom: 0;
}

.goal-item-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
    font-size: 0.9375rem;
}

.goal-item-info span:first-child {
    color: var(--text-primary);
    font-weight: 500;
}

.goal-value {
    color: var(--text-secondary);
    font-weight: 600;
}

.goal-progress-bar {
    height: 8px;
    background: var(--surface);
    border-radius: 999px;
    overflow: hidden;
}

@media (prefers-color-scheme: dark) {
    .goal-progress-bar {
        background: var(--background);
    }
}

.goal-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 999px;
    transition: width 0.3s ease;
}

/* Auth Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--background);
    border-radius: var(--radius-lg);
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .modal-content {
        background: var(--surface);
        border: 1px solid var(--border);
    }
}

.modal-onboarding {
    max-width: 650px;
}

.modal-header {
    padding: var(--space-8);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

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

.modal-body {
    padding: var(--space-8);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background: var(--background);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

@media (prefers-color-scheme: dark) {
    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group input[type="password"] {
        background: var(--background);
    }
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.password-hint {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-top: var(--space-2);
}

.form-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9375rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.link-primary {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.link-primary:hover {
    color: var(--secondary);
}

.error-message {
    display: none;
    padding: var(--space-3) var(--space-4);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
    color: #ef4444;
    font-size: 0.875rem;
    margin-bottom: var(--space-4);
}

.error-message.active {
    display: block;
}

.divider {
    position: relative;
    text-align: center;
    margin: var(--space-6) 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border);
}

.divider span {
    position: relative;
    background: var(--background);
    padding: 0 var(--space-4);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

@media (prefers-color-scheme: dark) {
    .divider span {
        background: var(--surface);
    }
}

.oauth-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.btn-oauth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--background);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

@media (prefers-color-scheme: dark) {
    .btn-oauth {
        background: var(--background);
    }
}

.btn-oauth:hover {
    background: var(--surface);
    border-color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-oauth svg {
    flex-shrink: 0;
}

.modal-footer-text {
    text-align: center;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Onboarding */
.onboarding-subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.onboarding-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

.schulformen-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.schulform-option {
    position: relative;
}

.schulform-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.schulform-label {
    display: block;
    padding: var(--space-4);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--background);
}

@media (prefers-color-scheme: dark) {
    .schulform-label {
        background: var(--background);
    }
}

.schulform-option input[type="radio"]:checked + .schulform-label {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.1);
}

.schulform-label:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.schulform-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.schulform-description {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

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

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

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

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

    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }

    .hero-iphone-image {
        max-width: 300px;
    }

    .goals-content {
        gap: var(--space-12);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 4px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: var(--space-2);
    }

    .mobile-menu-toggle span {
        width: 20px;
        height: 2px;
        background: var(--text-primary);
        transition: all 0.2s ease;
    }

    .hero {
        padding: calc(80px + var(--space-12)) 0 var(--space-12);
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

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

    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta button {
        width: 100%;
    }

    .hero-device {
        order: -1;
        margin-bottom: var(--space-8);
        justify-content: center;
        padding-right: 0;
    }

    .hero-iphone-image {
        max-width: 260px;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .hero-trust {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .language-switch {
        display: none;
    }

    .payment-logos {
        gap: var(--space-4);
    }

    .payment-logo {
        height: 24px;
        min-width: 60px;
    }

    .preview-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .app-preview-reverse .preview-mockup {
        order: 0;
    }

    .preview-title {
        font-size: 1.75rem;
    }

    .steps,
    .features-grid,
    .features-grid-extended,
    .pricing-grid,
    .testimonials-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .goals-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .goals-text {
        max-width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-description {
        font-size: 0.9375rem;
    }

    .hero-iphone-image {
        max-width: 220px;
    }

    .logo img {
        height: 120px;
    }

    .logo-text {
        font-size: 1.125rem;
    }

    .stat {
        padding: var(--space-4);
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .modal-header,
    .modal-body {
        padding: var(--space-6);
    }

    .form-row-2 {
        grid-template-columns: 1fr;
    }

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

/* App Preview Sections */
.app-preview {
    padding: var(--space-24) 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(34, 211, 238, 0.06) 0%, transparent 60%),
        linear-gradient(135deg, #f0f9ff 0%, #f5f3ff 100%);
}

@media (prefers-color-scheme: dark) {
    .app-preview {
        background:
            radial-gradient(circle at 20% 30%, rgba(34, 211, 238, 0.12) 0%, transparent 60%),
            var(--background);
    }
}

.app-preview-reverse {
    background:
        radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.06) 0%, transparent 60%),
        linear-gradient(135deg, #f0fdf4 0%, #faf5ff 100%);
}

@media (prefers-color-scheme: dark) {
    .app-preview-reverse {
        background:
            radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.12) 0%, transparent 60%),
            var(--surface);
    }
}

.preview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.app-preview-reverse .preview-content {
    direction: ltr;
}

.app-preview-reverse .preview-mockup {
    order: -1;
}

.preview-text {
    max-width: 500px;
}

.preview-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.preview-title {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-4);
    font-family: var(--font-display);
}

.preview-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.preview-features {
    list-style: none;
}

.preview-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    font-size: 1rem;
    color: var(--text-primary);
}

.preview-features svg {
    flex-shrink: 0;
    color: var(--accent);
}

.preview-mockup {
    position: relative;
}

.mockup-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
    transition: all 0.4s ease;
}

.mockup-frame:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.mockup-screen {
    aspect-ratio: 4 / 3;
    background: var(--background);
}

@media (prefers-color-scheme: dark) {
    .mockup-screen {
        background: var(--surface);
    }
}

.screen-content {
    padding: var(--space-8);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.gradient-bg-1 {
    background: linear-gradient(135deg,
        rgba(139, 92, 246, 0.15) 0%,
        rgba(34, 211, 238, 0.15) 100%
    );
}

.gradient-bg-2 {
    background: linear-gradient(135deg,
        rgba(34, 211, 238, 0.15) 0%,
        rgba(16, 185, 129, 0.15) 100%
    );
}

.screen-header {
    height: 48px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

@media (prefers-color-scheme: dark) {
    .screen-header {
        background: var(--surface);
    }
}

.screen-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.mini-card {
    height: 80px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

@media (prefers-color-scheme: dark) {
    .mini-card {
        background: var(--surface);
    }
}

.screen-chart {
    flex: 1;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-height: 200px;
}

@media (prefers-color-scheme: dark) {
    .screen-chart {
        background: var(--surface);
    }
}

.screen-exam {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    height: 100%;
}

.exam-question {
    height: 120px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

@media (prefers-color-scheme: dark) {
    .exam-question {
        background: var(--surface);
    }
}

.exam-answers {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.exam-answer {
    height: 56px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

@media (prefers-color-scheme: dark) {
    .exam-answer {
        background: var(--surface);
    }
}