.startup-screen { min-height: 100dvh; box-sizing: border-box; padding: 28px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: #213b30; background: #f6f5ef; }
body { margin: 0; }
.startup-screen img { border-radius: 20px; margin-bottom: 20px; }
.startup-screen h1 { font-size: 30px; margin: 0 0 24px; }
.startup-screen p { max-width: 330px; line-height: 1.5; margin: 16px 0 0; }
.startup-screen .startup-detail { font-size: 14px; color: #617067; margin-top: 8px; }
.startup-screen button { min-height: 44px; padding: 10px 20px; border: 0; border-radius: 12px; font: inherit; font-weight: 600; color: #fff; background: #193d31; margin-top: 20px; cursor: pointer; }
.startup-screen [hidden] { display: none; }
.loading-spinner { display: inline-block; width: 24px; height: 24px; box-sizing: border-box; flex-shrink: 0; border: 3px solid #d9e1d1; border-top-color: #355f48; border-radius: 50%; animation: loading-turn 1s linear infinite; }
@keyframes loading-turn { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .loading-spinner { animation: none; border-top-color: #355f48; border-right-color: #355f48; } }