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

:root {
    --primary: #007AFF;
    --primary-dark: #0056CC;
    --bg: #ffffff;
    --bg-secondary: #f5f5f7;
    --text: #1d1d1f;
    --text-secondary: #86868b;
    --border: #d2d2d7;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.logo-icon svg {
    width: 18px;
    height: 18px;
}

.nav-cta {
    background: var(--primary);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: background 0.2s;
}

.nav-cta:hover {
    background: var(--primary-dark);
}

/* Hero */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero h1 {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 480px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--text);
    color: white;
}

.btn-primary:hover {
    background: #333;
    transform: translateY(-2px);
}

.hero-note {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-secondary);
}

.phone-mockup {
    background: #1d1d1f;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.2);
    max-width: 320px;
    margin-left: auto;
}

.phone-mockup img {
    width: 100%;
    border-radius: 32px;
    display: block;
}

/* Features */
.features {
    padding: 100px 0;
}

.features h2,
.how-it-works h2,
.download h2 {
    text-align: center;
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* How it works */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.steps {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 24px;
}

.step {
    text-align: center;
    max-width: 240px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.step p {
    font-size: 14px;
    color: var(--text-secondary);
}

.step-arrow {
    color: var(--text-secondary);
    padding-top: 12px;
}

.step-arrow svg {
    width: 32px;
    height: 32px;
}

/* Download */
.download {
    padding: 100px 0;
    text-align: center;
}

.download p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.app-store-badge img {
    height: 54px;
}

.coming-soon {
    margin-top: 16px;
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
}

/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.footer-logo .logo-icon {
    width: 24px;
    height: 24px;
    border-radius: 6px;
}

.footer-logo .logo-icon svg {
    width: 14px;
    height: 14px;
}

.copyright {
    font-size: 14px;
    color: var(--text-secondary);
}

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

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero h1 {
        font-size: 40px;
    }

    .hero-subtitle {
        margin: 0 auto 32px;
    }

    .phone-mockup {
        margin: 40px auto 0;
        max-width: 280px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .step-arrow {
        transform: rotate(90deg);
        padding: 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
    }
}