* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
body { background-color: #0b1119; color: #fff; display: flex; justify-content: center; min-height: 100vh; }
.main-container { max-width: 480px; width: 100%; padding: 20px 20px 0 20px; display: flex; flex-direction: column; align-items: center; text-align: center; background-color: #0b1119; }
.hero-image { margin-top: 25px; margin-bottom: 20px; max-width: 220px; width: 100%; height: auto; }
.btn-action { display: flex; justify-content: center; align-items: center; gap: 12px; width: 85%; max-width: 300px; padding: 15px 0; margin: 8px 0; border-radius: 50px; background: #0b8bd1; color: #fff; font-size: 18px; font-weight: bold; text-decoration: none; transition: 0.2s; }
.btn-action:active { opacity: 0.8; transform: scale(0.97); }
.btn-action .icon { font-size: 20px; }
.app-title { font-size: 34px; font-weight: 800; margin-top: 30px; line-height: 1.1; }
.app-subtitle { font-size: 17px; color: #b0b9c6; margin-bottom: 20px; }
.app-desc { font-size: 15px; line-height: 1.6; text-align: left; padding: 0 5px; margin-bottom: 30px; color: #d1d5db; }
.app-desc strong { color: #fff; }
.footer-area { margin-top: auto; width: 100%; padding: 25px 0 20px 0; border-top: 1px solid rgba(255,255,255,0.08); }
.footer-nav-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; max-width: 280px; margin: 0 auto 15px auto; text-align: center; }
.footer-nav-grid a { color: #94a3b8; text-decoration: none; font-size: 14px; transition: 0.2s; }
.footer-nav-grid a:hover { color: #fff; }
.footer-copy { color: #64748b; font-size: 12px; text-align: center; }
@media (min-width: 769px) { body { background-color: #060a10; } .main-container { min-height: 100vh; padding: 40px 30px 0 30px; box-shadow: 0 0 40px rgba(0,0,0,0.8); border-radius: 8px; } }