:root {
    --phone-body-color: #e0dacd; /* Creamy beige */
    --dial-plate-bg: linear-gradient(145deg, #d3cabd, #f8f5ee); /* Subtle gradient */
    --dial-plate-border: #a89d8a;
    --hole-color: #5c554a; /* Dark brown */
    --number-color: #403a30;
    --finger-stop-color: #b0a492; /* Metallic-ish stop */
    --finger-stop-border: #7d7365;
    --display-bg: #4a443b; /* Dark display */
    --display-text: #ffc107; /* Amber text */
    --button-bg: #795548; /* Brown */
    --button-text: #ffffff;

    --dial-size: 300px; /* Slightly larger */
    --hole-size: calc(var(--dial-size) * 0.13);
    --number-font-size: calc(var(--dial-size) * 0.075); /* Slightly smaller number */
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0ece3; /* Light background */
    font-family: 'Orbitron', sans-serif; /* Techy font */
    overflow: hidden; /* Prevent scrollbars during drag */
    user-select: none; /* Prevent text selection during drag */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.phone-body {
    background-color: var(--phone-body-color);
    padding: 35px;
    border-radius: 20px;
    box-shadow: 8px 8px 20px rgba(0,0,0,0.25),
                inset 0 0 15px rgba(255,255,255,0.3),
                inset 0 0 10px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.display-panel {
    display: flex;
    align-items: stretch; /* Make items same height */
    width: 90%;
    max-width: 320px;
    height: 50px;
    border-radius: 8px;
    overflow: hidden; /* Clip corners */
    margin-bottom: 35px;
    background-color: var(--display-bg);
    box-shadow: inset 3px 3px 8px rgba(0,0,0,0.5);
}

#dialed-numbers {
    flex-grow: 1; /* Take available space */
    color: var(--display-text);
    font-size: 2em;
    padding: 5px 15px;
    display: flex;
    align-items: center;
    justify-content: flex-end; /* Numbers align right */
    letter-spacing: 3px;
    text-shadow: 0 0 5px rgba(255, 193, 7, 0.5); /* Glow effect */
    overflow: hidden; /* Prevent long numbers breaking layout */
    white-space: nowrap;
}

#call-button {
    flex-shrink: 0; /* Don't shrink */
    width: 60px; /* Fixed width */
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-left: 2px solid rgba(0,0,0,0.2);
    cursor: pointer;
    font-size: 1.5em;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.2s;
}
#call-button:hover {
    background-color: #9c786c;
}


.dial-assembly {
    position: relative;
    width: var(--dial-size);
    height: var(--dial-size);
}

#dial {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dial-plate-bg);
    border-radius: 50%;
    border: 4px solid var(--dial-plate-border);
    box-shadow: inset 0 0 15px rgba(0,0,0,0.2), 0 5px 10px rgba(0,0,0,0.2);
    transform-origin: center center;
    /* This transition controls the visual return speed */
    transition: transform 0.55s cubic-bezier(0.15, 0.85, 0.25, 1);
}

.dial-center-design {
    position: absolute;
    width: 25%;
    height: 25%;
    top: 50%;
    left: 50%;
    background: radial-gradient(circle, #c8bba8 0%, var(--finger-stop-color) 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: inset 1px 1px 5px rgba(0,0,0,0.4), 0 0 3px rgba(0,0,0,0.2);
    z-index: 3; /* Above holes/numbers */
}


.hole {
    position: absolute;
    width: var(--hole-size);
    height: var(--hole-size);
    background-color: var(--hole-color);
    border-radius: 50%;
    top: 50%; /* Position origin for transform */
    left: 50%;
    /* Center the hole using negative margins */
    margin-left: calc(var(--hole-size) / -2);
    margin-top: calc(var(--hole-size) / -2);
    cursor: grab;
    z-index: 2; /* Above numbers */
    box-shadow: inset 2px 2px 4px rgba(0,0,0,0.6);
    /* Actual position set by JS translate */
}
.hole.dragging {
    cursor: grabbing;
    background-color: #7a7061; /* Lighter when dragging */
}

.dial-plate-number {
    position: absolute;
    /* Define area based on font size for centering */
    width: calc(var(--number-font-size) * 1.5);
    height: calc(var(--number-font-size) * 1.5);
    top: 50%; /* Position origin for transform */
    left: 50%;
     /* Translate -50% of element size to center it on calculated point */
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: var(--number-font-size);
    font-weight: 700;
    color: var(--number-color);
    z-index: 1; /* Below holes */
    transform-origin: center center; /* Rotation point for text */
    /* Final position and text rotation set by JS */
}


#finger-stop {
    position: absolute;
    width: 18px;
    height: 45px;
    background: linear-gradient(to bottom, #cac0b2, var(--finger-stop-color));
    border: 1px solid var(--finger-stop-border);
    border-radius: 9px 9px 5px 5px; /* Shaped top/bottom */
    box-shadow: 1px 1px 4px rgba(0,0,0,0.5);
    z-index: 4; /* Above everything */
    /* Position & Rotation set by JS */
}

#clear-button {
    margin-top: 30px;
    padding: 10px 25px;
    font-size: 1em;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 2px 2px 5px rgba(0,0,0,0.2);
    transition: background-color 0.2s, transform 0.1s;
}
#clear-button:hover {
    background-color: #9c786c;
}
#clear-button:active {
    transform: translateY(1px);
     box-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}