/* --- Emulator Page Layout --- */
.emulator-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 140px 20px 60px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.emulator-container .page-title {
    font-family: 'orbitron', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--text-highlight);
    margin-bottom: 10px;
    text-align: center;
    text-shadow: 0 0 10px var(--tron-blue), 0 0 20px var(--tron-blue-dark);
    letter-spacing: 4px;
}

.emulator-container .page-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: var(--text-primary);
    margin-bottom: 30px;
    text-align: center;
    text-shadow: 0 0 5px rgba(0, 209, 255, 0.3);
}

/* --- Display area --- */
.display-container {
    position: relative;
    margin-bottom: 15px;
    border: 1px solid rgba(0, 209, 255, 0.3);
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(0, 209, 255, 0.1);
    transition: all 0.3s ease;
}

.display-container:hover {
    border-color: var(--tron-blue);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5), 0 0 25px rgba(0, 209, 255, 0.2);
}

#border {
    display: block;
    width: 640px;
    height: 480px;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    background: #D7D7D7;
}

#screen {
    display: none;
}

/* --- Status --- */
#status {
    font-family: 'source code pro', monospace;
    font-size: 0.8rem;
    color: rgba(0, 209, 255, 0.5);
    margin-bottom: 15px;
    text-align: center;
    min-height: 20px;
    letter-spacing: 1px;
}

/* --- Controls --- */
.controls {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.controls button,
.controls label {
    font-family: 'source code pro', monospace;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(0, 209, 255, 0.3);
    color: var(--text-primary);
    padding: 8px 14px;
    cursor: pointer;
    font-size: 0.8rem;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.controls button:hover,
.controls label:hover {
    border-color: var(--tron-blue);
    background: rgba(0, 209, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 209, 255, 0.3);
    color: var(--text-highlight);
}

.controls button:active {
    background: rgba(57, 211, 83, 0.2);
    border-color: var(--matrix-green);
    color: var(--matrix-green);
}

.controls input[type="file"] {
    display: none;
}

#fps {
    font-family: 'source code pro', monospace;
    font-size: 0.75rem;
    color: rgba(57, 211, 83, 0.5);
    margin-left: 10px;
}

/* --- Virtual Keyboard --- */
.keyboard-container {
    background: rgba(0, 0, 0, 0.5);
    padding: 12px;
    border: 1px solid rgba(0, 209, 255, 0.2);
    max-width: 660px;
}

.keyboard-row {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 4px;
}

.keyboard-row:last-child {
    margin-bottom: 0;
}

.key {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(0, 209, 255, 0.25);
    padding: 6px 4px;
    min-width: 42px;
    height: 42px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    transition: all 0.15s ease;
    font-size: 11px;
    color: var(--text-primary);
}

.key:hover {
    background: rgba(0, 209, 255, 0.1);
    border-color: rgba(0, 209, 255, 0.5);
}

.key:active,
.key.pressed {
    background: rgba(57, 211, 83, 0.25);
    color: var(--matrix-green);
    border-color: var(--matrix-green);
    text-shadow: 0 0 5px rgba(57, 211, 83, 0.5);
}

.key .label {
    font-family: 'source code pro', monospace;
    font-weight: bold;
    font-size: 12px;
}

.key .sub {
    font-family: 'source code pro', monospace;
    font-size: 8px;
    color: rgba(0, 209, 255, 0.4);
    margin-top: 1px;
}

.key.wide {
    min-width: 70px;
}

.key.extra-wide {
    min-width: 110px;
    flex-grow: 1;
    max-width: 130px;
}

/* --- Load Dialog --- */
.load-dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.load-dialog {
    background: rgba(10, 10, 20, 0.95);
    border: 1px solid rgba(0, 209, 255, 0.4);
    padding: 30px;
    min-width: 320px;
    max-width: 450px;
    position: relative;
    box-shadow: 0 0 30px rgba(0, 209, 255, 0.2);
}

.load-dialog-title {
    font-family: 'orbitron', sans-serif;
    font-size: 1.2rem;
    color: var(--tron-blue);
    text-shadow: 0 0 5px rgba(0, 209, 255, 0.3);
    letter-spacing: 2px;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.load-dialog-section {
    margin-bottom: 20px;
}

.load-dialog-label {
    font-family: 'source code pro', monospace;
    font-size: 0.75rem;
    color: var(--matrix-green);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    text-shadow: 0 0 5px rgba(57, 211, 83, 0.3);
}

.load-dialog-games {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 400px;
    overflow-y: auto;
}

.load-dialog-games::-webkit-scrollbar {
    width: 6px;
}

.load-dialog-games::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
}

.load-dialog-games::-webkit-scrollbar-thumb {
    background: rgba(0, 209, 255, 0.3);
}

.load-dialog-games::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 209, 255, 0.5);
}

.load-dialog-game {
    font-family: 'source code pro', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(0, 209, 255, 0.2);
    padding: 10px 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.load-dialog-game:hover {
    border-color: var(--tron-blue);
    background: rgba(0, 209, 255, 0.1);
    color: var(--text-highlight);
    box-shadow: 0 0 10px rgba(0, 209, 255, 0.2);
}

.load-dialog-game .game-ext {
    font-size: 0.7rem;
    color: rgba(0, 209, 255, 0.5);
    margin-left: 6px;
}

.load-dialog-btn {
    font-family: 'source code pro', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(57, 211, 83, 0.3);
    padding: 10px 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    text-align: left;
}

.load-dialog-btn:hover {
    border-color: var(--matrix-green);
    background: rgba(57, 211, 83, 0.1);
    color: var(--matrix-green);
    box-shadow: 0 0 10px rgba(57, 211, 83, 0.2);
}

.load-dialog-close {
    position: absolute;
    top: 10px;
    right: 14px;
    background: none;
    border: none;
    color: rgba(0, 209, 255, 0.4);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1;
}

.load-dialog-close:hover {
    color: var(--tron-blue);
    text-shadow: 0 0 8px rgba(0, 209, 255, 0.5);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .emulator-container {
        padding: 180px 20px 40px;
    }
}

@media (max-width: 700px) {
    #border {
        width: 320px;
        height: 240px;
    }

    .key {
        min-width: 28px;
        height: 34px;
        font-size: 9px;
        padding: 3px 2px;
    }

    .key .label {
        font-size: 10px;
    }

    .key.wide {
        min-width: 48px;
    }

    .key.extra-wide {
        min-width: 70px;
    }

    .keyboard-container {
        padding: 8px;
    }
}

@media (max-width: 480px) {
    .emulator-container {
        padding: 200px 15px 40px;
    }
}

/* --- Sezione descrittiva (contenuto indicizzabile) --- */
.emulator-about {
    max-width: 800px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 209, 255, 0.2);
}

.emulator-about h2 {
    font-family: 'orbitron', sans-serif;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--text-highlight);
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.emulator-about p {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 12px;
    opacity: 0.85;
}