:root {
    --bg: #050505;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.1);
    --accent: #0071e3; /* Apple Blue */
    --text-main: #f5f5f7;
    --text-dim: #86868b;
}

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

body {
    background-color: var(--bg);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Glass Navigation */
nav {
    position: fixed;
    top: 0; width: 100%;
    height: 60px;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10%;
    z-index: 1000;
}

.logo { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.5px; }

/* Hero Section */
.hero {
    padding: 160px 10% 80px;
    text-align: center;
    background: radial-gradient(circle at center, #1d1d1f 0%, #050505 100%);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 20px;
    background: linear-gradient(180deg, #fff 0%, #a1a1a1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-dim);
    max-width: 700px;
    margin: 0 auto 40px;
}

/* App Grid */
.container { padding: 80px 10%; }

.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-align: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 40px;
    transition: transform 0.3s ease, border 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    transform: translateY(-10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.card-icon {
    width: 60px; height: 60px;
    background: var(--accent);
    border-radius: 14px;
    margin-bottom: 20px;
    display: flex; align-items: center; justify-content: center;
    font-weight: bold; font-size: 1.2rem;
    color: white;
}

.card h3 { font-size: 1.8rem; margin-bottom: 15px; }
.card p { color: var(--text-dim); margin-bottom: 25px; flex-grow: 1; }

.btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--text-main);
    color: black;
    text-decoration: none;
    border-radius: 980px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: opacity 0.2s;
    text-align: center;
}

.btn:hover { opacity: 0.8; }

/* Footer */
footer {
    padding: 60px 10%;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
}

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

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

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .hero p { font-size: 1.1rem; }
}