:root {
    --surface: #0f141b;
    --surface-glass: rgba(15, 20, 27, 0.8);
    --surface-container: #1b2028;
    --surface-container-high: #252a33;
    --on-surface: #dee2ee;
    --on-surface-variant: #c1c6d7;
    --primary: #adc6ff;
    --primary-container: #4b8eff;
    --on-primary: #002e69;
    --outline: rgba(65, 71, 85, 0.3);
    --secondary: #47e266;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--surface-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--outline);
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
    color: #fff;
}

.nav-links a {
    color: var(--on-surface-variant);
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    max-width: 1200px;
    margin: 8rem auto 5rem;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(71, 226, 102, 0.1);
    color: var(--secondary);
    border: 1px solid rgba(71, 226, 102, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.promo-text {
    font-size: 1.2rem;
    color: var(--on-surface-variant);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.app-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: #fff;
    color: #000;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.app-store-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.15);
}

.app-store-btn span {
    font-size: 0.75rem;
    line-height: 1.2;
}

.app-store-btn strong {
    font-size: 1.2rem;
}

/* Mockup Abstraction */
.hero-visual {
    position: relative;
    width: 100%;
    height: 500px;
    background: radial-gradient(circle at center, rgba(75, 142, 255, 0.15) 0%, transparent 70%);
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup {
    width: 280px;
    height: 580px;
    background: var(--surface);
    border: 2px solid var(--outline);
    border-radius: 40px;
    padding: 2rem 1.5rem;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
    position: relative;
    transform: rotate(5deg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px) rotate(5deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
    100% { transform: translateY(0px) rotate(5deg); }
}

.mock-header {
    width: 100px;
    height: 16px;
    background: var(--surface-container-high);
    border-radius: 8px;
    margin: 0 auto 2rem;
}

.mock-step {
    font-size: 0.7rem;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    margin-top: 1.5rem;
}

.mock-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.mock-card {
    background: var(--surface-container);
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--on-surface-variant);
    border: 1px solid var(--outline);
}

.mock-card.active {
    background: var(--primary);
    color: var(--on-primary);
    font-weight: 600;
}

.mock-btn {
    margin-top: 3rem;
    width: 100%;
    height: 48px;
    background: linear-gradient(90deg, var(--primary), var(--primary-container));
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--on-primary);
}

/* Features */
.features {
    padding: 5rem 0;
    background: var(--surface-container-lowest);
    border-top: 1px solid var(--outline);
}

.section-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.features h2 {
    font-size: 2.5rem;
    color: #fff;
    text-align: center;
    margin-bottom: 1rem;
}

.description {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 1.5rem;
    font-size: 1.15rem;
}

.highlight {
    color: var(--secondary);
    font-weight: bold;
    margin-bottom: 4rem;
}

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

.feature-card {
    background: var(--surface-container);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--outline);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.feature-card h3 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Legal Accordion */
.legal-section {
    padding: 6rem 0;
}

.legal-section h2 {
    font-size: 2rem;
    color: #fff;
    margin-bottom: 3rem;
}

.accordion {
    background: var(--surface-container);
    border: 1px solid var(--outline);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: var(--surface-container-high);
}

.accordion-header h3 {
    font-size: 1.1rem;
    color: #fff;
}

.accordion-header .icon {
    font-size: 1.5rem;
    color: var(--primary);
    transition: transform 0.3s;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 2rem;
}

.accordion-content p {
    margin-bottom: 1.5rem;
}

.accordion-content p:first-child {
    margin-top: 1.5rem;
}

/* Footer */
footer {
    background: var(--surface-container-lowest);
    border-top: 1px solid var(--outline);
    padding: 4rem 2rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--outline);
    padding-bottom: 3rem;
    margin-bottom: 2rem;
}

.footer-info p {
    margin-top: 0.5rem;
    color: var(--on-surface-variant);
}

.contact-info h4 {
    color: #fff;
    margin-bottom: 0.5rem;
}

.email-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 1.1rem;
}

.email-link:hover {
    text-decoration: underline;
}

.copyright {
    text-align: center;
    color: var(--on-surface-variant);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        margin-top: 6rem;
    }
    .hero h1 { font-size: 2.5rem; }
    .promo-text { margin: 0 auto 2.5rem; }
    .nav-links { display: none; }
    .feature-grid { grid-template-columns: 1fr; }
    .footer-container { flex-direction: column; gap: 2rem; }
}