/* Modern Zeppi Website - Clean & Minimal */

:root {
    /* Colors matching app UI */
    --primary: #FFA500;
    --primary-dark: #FF8C00;
    --accent: #FFD700;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-light: #999999;
    --background: #FFFFFF;
    --background-alt: #FAFAFA;
    --border: #E5E5E5;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 64px;
    --spacing-2xl: 96px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--background);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

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

.download-btn {
    background: var(--text-primary);
    color: white !important;
    padding: 8px 20px;
    border-radius: 8px;
    transition: transform 0.2s ease, background 0.2s ease;
}

.download-btn:hover {
    background: #000;
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.primary-button {
    background: var(--text-primary);
    color: white;
    padding: 14px 28px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.primary-button:hover {
    background: #000;
    transform: translateY(-2px);
}

.primary-button.large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.apple-icon {
    width: 18px;
    height: 18px;
}

.secondary-button {
    color: var(--text-primary);
    padding: 14px 28px;
    border: 2px solid var(--border);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.secondary-button:hover {
    border-color: var(--text-primary);
}

/* Stats */
.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Phone Mockup */
.phone-mockup {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
}

.app-preview {
    width: 100%;
    max-width: 300px;
    height: auto;
}

/* Problem Section */
.problem-section {
    padding: var(--spacing-2xl) 0;
    background: var(--background-alt);
}

.problem-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.problem-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.problem-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.problem-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.problem-stat {
    text-align: center;
}

.big-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.problem-stat span:last-child {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Features Section */
.features {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
}

.features-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.features-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.features-header p {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--background-alt);
    padding: var(--spacing-lg);
    border-radius: 16px;
    transition: all 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* How It Works */
.how-section {
    padding: var(--spacing-2xl) 0;
    background: var(--background-alt);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.section-header p {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

.steps-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.step {
    flex: 1;
    text-align: center;
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: 16px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

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

.step-arrow {
    color: var(--text-light);
    font-size: 1.5rem;
}

/* Social Proof */
.social-proof {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
}

.social-proof h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
    font-weight: 700;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial {
    background: var(--background-alt);
    padding: var(--spacing-lg);
    border-radius: 16px;
    text-align: center;
}

.stars {
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.testimonial p {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
    line-height: 1.5;
}

.author {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-2xl) 0;
    background: var(--background-alt);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.cta-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.cta-note {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

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

.footer-logo {
    width: 40px;
    height: 40px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-column a {
    display: block;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
}

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

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .primary-button,
    .secondary-button {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .problem-stats,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .steps-container {
        flex-direction: column;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }

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

    .nav-links {
        display: none;
    }
}