:root {
    --primary-color: #007AFF; /* iOS Blue */
    --text-color: #1d1d1f;
    --secondary-text-color: #86868b;
    --background-color: #ffffff;
    --section-background: #f5f5f7;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.2s ease;
}

a:hover {
    text-decoration: underline;
}

/* Header / Nav */
header {
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.logo {
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--text-color);
}

.nav-links a {
    margin-left: 20px;
    font-size: 0.9rem;
    color: var(--text-color);
}

.nav-links a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 100px 20px 60px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.5rem;
    color: var(--secondary-text-color);
    max-width: 600px;
    margin: 0 auto 40px;
}

.app-icon {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    margin: 0 auto 30px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: block; /* Ensures margin auto works */
}

.download-btn {
    display: inline-block;
    background-color: #000;
    color: #fff;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 500;
    font-size: 1rem;
}

.download-btn:hover {
    background-color: #333;
    text-decoration: none;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--section-background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.feature-item {
    background: #fff;
    padding: 30px;
    border-radius: 18px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    text-align: left;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 15px;
    display: block;
}

.feature-item h3 {
    margin-top: 0;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--secondary-text-color);
    font-size: 1rem;
    line-height: 1.6;
}

/* Content Pages (Privacy, Support) */
.content-page {
    padding: 60px 0;
    max-width: 800px;
    margin: 0 auto;
}

.content-page h1 {
    font-size: 2.5rem;
    margin-bottom: 40px;
}

.content-page h2 {
    font-size: 1.8rem;
    margin-top: 40px;
    margin-bottom: 20px;
}

.content-page p, .content-page ul {
    font-size: 1.05rem;
    color: #333;
    line-height: 1.7;
}

.content-page ul {
    padding-left: 20px;
}

/* Screenshots Section */
.screenshots {
    padding: 80px 0;
    background-color: #fff;
    overflow: hidden; /* Prevent scrollbar from messing up width */
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 50px;
    letter-spacing: -0.02em;
}

.screenshot-scroller {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 20px 40px; /* Bottom padding for shadow/scrollbar */
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    margin: 0 -20px; /* Align with container edge but allow scroll */
}

/* Hide scrollbar for Chrome/Safari/Opera */
.screenshot-scroller::-webkit-scrollbar {
    display: none; 
}

.screenshot-scroller img {
    height: 500px; /* Fixed height for uniformity */
    width: auto;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.screenshot-scroller img:hover {
    transform: translateY(-10px);
}

/* Footer */
footer {
    background-color: var(--section-background);
    padding: 40px 0;
    border-top: 1px solid rgba(0,0,0,0.1);
    font-size: 0.8rem;
    color: var(--secondary-text-color);
}

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

.footer-links a {
    margin-left: 20px;
    color: var(--secondary-text-color);
}

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

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .hero p { font-size: 1.2rem; }
    .footer-content { flex-direction: column; gap: 20px; text-align: center; }
    .footer-links a { margin: 0 10px; }
    .screenshot-scroller img { height: 400px; }
}