/* style.css – clean, minimal, centered, smooth transitions */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: system-ui, 'Segoe UI', Roboto, -apple-system, sans-serif;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #1e3b8a;   /* initial blue */
    transition: background-color 0.5s ease;
    min-height: 100vh;
    margin: 0;
}

#app {
    text-align: center;
    color: white;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
    padding: 2rem;
    max-width: 90vw;
}

h1 {
    font-size: 4.5rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
    opacity: 0.95;
}

#status {
    font-size: 2.2rem;
    font-weight: 300;
    letter-spacing: 0.04em;
    opacity: 0.9;
    transition: opacity 0.2s;
}

/* green background state (applied via JS on body) */
body.wake {
    background-color: #1f8b4c;   /* calm green */
}

/* small screen adjustments */
@media (max-width: 600px) {
    h1 { font-size: 3.2rem; }
    #status { font-size: 1.6rem; }
}