* {

    box-sizing: border-box;

    margin: 0;

    padding: 0;

    user-select: none;

}



body, html {

    width: 100%;

    height: 100%;

    overflow: hidden;

    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

}



/* UNICO PUNTO DI CONTROLLO SFONDO */

#canvas-svg {

    width: 100vw;

    height: 100vh;

    display: block;

    cursor: crosshair;

    background-color: lightcyan; /*#040814*/

}



/* Pannello di Controllo */

#control-panel {

    position: absolute;

    top: 20px;

    right: 0;

    transform: translateX(100%);

    transition: transform 0.35s cubic-bezier(0.1, 0.9, 0.2, 1);

    background: rgba(8, 14, 28, 0.75);

    backdrop-filter: blur(8px);

    -webkit-backdrop-filter: blur(8px);

    border: 1px solid rgba(255, 215, 0, 0.3);

    border-right: none;

    border-radius: 12px 0 0 12px;

    padding: 20px;

    width: 310px;

    color: #ffd700;

    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.6);

    z-index: 100;

}



#control-panel.open {

    transform: translateX(0);

}



/* Linguetta sul bordo */

#panel-toggle {

    position: absolute;

    left: -42px;

    top: 20px;

    width: 42px;

    height: 50px;

    background: rgba(8, 14, 28, 0.85);

    border: 1px solid rgba(255, 215, 0, 0.4);

    border-right: none;

    border-radius: 8px 0 0 8px;

    color: #ffd700;

    display: flex;

    align-items: center;

    justify-content: center;

    cursor: pointer;

    font-size: 20px;

    box-shadow: -4px 2px 10px rgba(0,0,0,0.5);

    transition: background 0.2s, color 0.2s;

}



#panel-toggle:hover {

    background: rgba(255, 215, 0, 0.2);

    color: #fff;

}



#control-panel h3 {

    margin-bottom: 15px;

    font-size: 16px;

    text-transform: uppercase;

    letter-spacing: 1.5px;

    border-bottom: 1px solid rgba(255, 215, 0, 0.25);

    padding-bottom: 8px;

    color: #ffee55;

    text-align: center;

}



.control-group {

    margin-bottom: 14px;

    display: flex;

    flex-direction: column;

    gap: 5px;

}



.control-group label {

    font-size: 12px;

    letter-spacing: 0.5px;

    display: flex;

    justify-content: space-between;

}



.control-group input[type="range"] {

    accent-color: #ffd700;

    cursor: pointer;

}



/* Gruppo Pulsanti Fluttuanti e Trascinabili */

#floating-controls {

    position: absolute;

    top: 20px;

    left: 20px;

    display: flex;

    flex-direction: column;

    gap: 10px;

    z-index: 90;

}



.action-btn {

    padding: 10px 20px;

    background: rgba(10, 20, 40, 0.75);

    border: 1.5px solid #ffd700;

    border-radius: 30px;

    color: #ffd700;

    font-weight: bold;

    font-size: 13px;

    letter-spacing: 1px;

    cursor: pointer;

    backdrop-filter: blur(6px);

    box-shadow: 0 4px 15px rgba(0,0,0,0.5);

    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;

    display: flex;

    align-items: center;

    justify-content: center;

    gap: 8px;

    min-width: 140px;

}



.action-btn:hover {

    box-shadow: 0 0 12px rgba(255, 215, 0, 0.5);

    background: rgba(20, 35, 65, 0.85);

}



#freeze-btn.frozen {

    background: rgba(180, 40, 40, 0.8);

    border-color: #ff6b6b;

    color: #ffffff;

}



#reset-btn {

    border-color: #ffee55;

}



.status-dot {

    width: 8px;

    height: 8px;

    border-radius: 50%;

    background-color: #00ff88;

    box-shadow: 0 0 8px #00ff88;

}



#freeze-btn.frozen .status-dot {

    background-color: #ff3333;

    box-shadow: 0 0 8px #ff3333;

}