:root {
    --bg-color: #050505;
    --text-main: #ffffff;
    --text-muted: #888888;
    --accent-teal: #00F0FF;
    --accent-orange: #FF5E00;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-stack);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3 {
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.2;
}

h1 {
    font-size: 4.25rem;
    background: linear-gradient(180deg, #fff 0%, #aaa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 24px;
}

h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 24px;
}

/* Header */
header {
    padding: 40px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    object-fit: cover;
    filter: invert(1);
}

/* Hero */
.hero {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start; /* Left align for more serious feel? Or center? Let's go Center for landing */
    text-align: center;
    align-items: center;
    position: relative;
    padding: 60px 0;
}

.hero p {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Features/Grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    padding: 80px 0;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 32px;
    border-radius: 8px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.15);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: #fff;
}

.card p {
    font-size: 1rem;
    margin-bottom: 0;
}

.accent-text {
    color: var(--accent-orange);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    display: block;
}

/* Buttons */
.app-store-link {
    display: inline-block;
    line-height: 0;
}

.app-store-link:focus-visible {
    outline: 2px solid var(--accent-teal);
    outline-offset: 6px;
    border-radius: 13px;
}

.app-store-badge {
    display: block;
    width: 180px;
    height: auto;
}

.availability-note {
    font-size: 0.8rem;
    margin-top: 16px;
    opacity: 0.5;
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 60px 0;
    margin-top: 60px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 24px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #fff;
}

/* Responsive */
@media (max-width: 600px) {
    h1 {
        font-size: 2.5rem;
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .footer-links a {
        margin: 0 12px;
    }
}