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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.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(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    padding: 8rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
    max-width: 500px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.app-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--text);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.app-store-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 580px;
    background: linear-gradient(145deg, #1f2937, #374151);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #4f46e5, #7c3aed);
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-preview {
    text-align: center;
    color: white;
}

.sound-wave {
    width: 120px;
    height: 60px;
    margin: 0 auto 1rem;
    background: repeating-linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.8) 0px,
        rgba(255, 255, 255, 0.8) 3px,
        transparent 3px,
        transparent 8px
    );
    border-radius: 4px;
    animation: wave 1.5s ease-in-out infinite;
}

@keyframes wave {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.app-preview p {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    background: var(--bg-alt);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

.feature-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-light);
}

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

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-content p {
    color: var(--text-light);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}

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

/* Page Styles */
.page {
    min-height: 100vh;
    padding: 8rem 2rem 4rem;
}

.page-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-content .last-updated {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.page-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 2rem 0 1rem;
}

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

.page-content ul {
    color: var(--text-light);
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

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

/* Support Page */
.support-card {
    background: var(--bg-alt);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
    text-align: center;
}

.support-card h2 {
    margin-top: 0;
}

.email-link {
    display: inline-block;
    color: var(--primary);
    font-size: 1.25rem;
    font-weight: 600;
    text-decoration: none;
    margin-top: 0.5rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .phone-mockup {
        width: 220px;
        height: 460px;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }

    .nav-links {
        gap: 0.75rem;
        font-size: 0.875rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }
}