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

:root {
    --olive: #7C8B6F;
    --olive-light: #A8B5A0;
    --terracotta: #C4A77D;
    --terracotta-light: #E8D5C4;
    --sage: #9CAF88;
    --background: #FAF9F7;
    --card: #FFFFFF;
    --text-primary: #2C3E2D;
    --text-secondary: #6B7B6C;
    --text-tertiary: #9CA99D;
    --border: #E8E5E0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Navigation */
nav {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

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

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tagline {
    font-size: 1.5rem;
    color: var(--olive);
    font-weight: 600;
    margin-bottom: 1rem;
}

.description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--text-primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--text-primary);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 24px 48px rgba(0,0,0,0.15);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--background);
    border-radius: 32px;
    overflow: hidden;
    padding: 20px 16px;
}

.app-preview {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 40px;
}

.preview-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--card);
    padding: 16px;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
}

.preview-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.preview-info .name {
    font-weight: 600;
    font-size: 0.95rem;
}

.preview-info .entries {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.balance {
    font-weight: 700;
    font-size: 1.1rem;
    padding: 4px 12px;
    border-radius: 20px;
}

.balance.positive {
    color: var(--olive);
    background: rgba(124, 139, 111, 0.15);
}

.balance.negative {
    color: var(--terracotta);
    background: rgba(196, 167, 125, 0.15);
}

.balance.zero {
    color: var(--text-secondary);
    background: var(--border);
}

/* Features */
.features {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature {
    background: var(--card);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
}

.feature-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer */
footer {
    background: var(--card);
    border-top: 1px solid var(--border);
    padding: 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
}

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

.copyright {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* Legal Pages */
.legal-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.legal-page h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.legal-page .updated {
    color: var(--text-tertiary);
    margin-bottom: 2rem;
}

.legal-page h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.legal-page p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.legal-page ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.legal-page li {
    margin-bottom: 0.5rem;
}

.legal-page a {
    color: var(--olive);
}

/* Support Page */
.support-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.support-page h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.support-page .intro {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.contact-card h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.contact-card a {
    color: var(--olive);
    font-weight: 600;
    text-decoration: none;
}

.contact-card a:hover {
    text-decoration: underline;
}

.faq {
    margin-top: 3rem;
}

.faq h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 0;
    }
    
    .description {
        margin: 0 auto 2rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
}