/* =============================================================================
   STYLE APLIKACJI
   ============================================================================= */

html, body {
    margin: 0;
    height: 100%;
    overflow: hidden;
    background-color: #000;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

/* Plansza i nakładki - pełny ekran, rozdzielczość fizyczna (devicePixelRatio).
   inset zamiast 100vw/100vh: w aplikacji z ekranu początkowego iPadOS jednostka vh
   (i window.innerHeight) potrafi nie obejmować paska statusu - rozmiar płótna
   mierzony jest z faktycznie zajmowanego obszaru (app.js, resize()). */
#pattern,
#overlay {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* Bezczynność - ukryty kursor i przycisk opcji (czysty obraz dla kamery) */
body.idle,
body.idle #pattern,
body.idle #overlay {
    cursor: none;
}

/* Elementy interfejsu omijają obszary niebezpieczne (pasek statusu, wycięcie ekranu) */
#controls-toggle {
    position: fixed;
    top: calc(10px + env(safe-area-inset-top));
    right: calc(10px + env(safe-area-inset-right));
    background-color: rgba(0,0,0,0.7);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    z-index: 1001;
    transition: background-color 0.3s ease, opacity 0.5s ease;
}

#controls-toggle:hover {
    background-color: rgba(0,0,0,0.9);
}

body.idle #controls-toggle {
    opacity: 0;
    pointer-events: none;
}

#controls {
    position: fixed;
    top: calc(50px + env(safe-area-inset-top));
    right: calc(10px + env(safe-area-inset-right));
    width: 300px;
    max-width: calc(100% - 50px);
    background-color: rgba(0,0,0,0.9);
    padding: 15px;
    border-radius: 5px;
    color: white;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    z-index: 1000;
    max-height: calc(100% - 80px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
    overflow-y: auto;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#controls.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
}

#controls label {
    display: block;
    margin: 6px 0;
    cursor: pointer;
}

#controls select,
#controls input[type="text"],
#controls input[type="number"] {
    box-sizing: border-box;
    background-color: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 5px;
    border-radius: 3px;
    font-size: 14px;
    width: 100%;
    margin-top: 4px;
}

#controls select option {
    background-color: #333;
    color: white;
}

#controls hr {
    border: none;
    border-top: 1px solid rgba(255,255,255,0.3);
    margin: 10px 0;
}

#controls .hint,
#stats {
    font-size: 12px;
    color: rgba(255,255,255,0.65);
    line-height: 1.5;
}

#controls .buttons {
    display: flex;
    gap: 6px;
    margin-top: 8px;
}

#controls .buttons button {
    flex: 1;
    padding: 8px;
    cursor: pointer;
    font-size: 13px;
}

/* Podpowiedź o zablokowanym dźwięku (polityka autoodtwarzania) */
#audio-hint {
    position: fixed;
    top: calc(10px + env(safe-area-inset-top));
    left: calc(10px + env(safe-area-inset-left));
    background-color: rgba(200, 30, 30, 0.9);
    color: white;
    padding: 8px 12px;
    border-radius: 5px;
    font-family: Arial, sans-serif;
    font-size: 13px;
    z-index: 1000;
    transition: opacity 0.3s ease;
}

#audio-hint.hidden {
    opacity: 0;
    pointer-events: none;
}

#toast {
    position: fixed;
    bottom: calc(30px + env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: rgba(0,0,0,0.85);
    color: white;
    padding: 10px 18px;
    border-radius: 5px;
    font-family: Arial, sans-serif;
    font-size: 14px;
    z-index: 1002;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#toast.visible {
    opacity: 1;
    transform: translateX(-50%);
}

/* Okno "O projekcie" */
#about-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
    -webkit-user-select: text;
    user-select: text;
}

.about-modal {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    max-width: 520px;
    margin: 16px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.6;
}

.about-modal h2 {
    margin-top: 0;
    text-align: center;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.about-modal h2 img {
    width: 32px;
    height: 32px;
}

.about-modal h3 {
    font-size: 18px;
    margin-top: 20px;
    border-bottom: 2px solid rgba(255,255,255,0.3);
    padding-bottom: 5px;
}

.about-modal ul {
    line-height: 1.8;
}

.about-modal .version {
    text-align: center;
    margin: 15px 0;
    padding: 10px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
}

.about-modal .small {
    font-size: 14px;
}

.about-modal .center {
    text-align: center;
}

.about-modal a {
    color: white;
    text-decoration: underline;
}

#close-about {
    margin-top: 15px;
    padding: 12px 30px;
    font-size: 16px;
    background-color: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid white;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#close-about:hover {
    background-color: rgba(255,255,255,0.3);
}

/* Tryb kiosk (?kiosk=1) - panel opcji dostępny pod klawiszem "O" */
body.kiosk #controls-toggle,
body.kiosk #audio-hint {
    display: none;
}

body.kiosk #controls {
    top: calc(10px + env(safe-area-inset-top));
}