@font-face {
    font-family: 'PrintChar21';
    src: url('fonts/PrintChar21.ttf') format('truetype');
}

body, html {
    height: 100%;
    margin: 0;
    padding: 0;
    background-color: #000;
    font-size: 10px;
    color: #0f8;
    font-family: 'PrintChar21', monospace;
    overflow: hidden;
}

.radar-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
}

.control-panel {
    width: 100%;
    max-width: 800px;
    background-color: #111;
    border: 4px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    box-sizing: border-box;
    box-shadow: inset 0 0 20px rgba(0, 255, 0, 0.2);
    margin-bottom: 20px;
}

.status-text {
    font-size: 1.6em;
    text-align: center;
    padding: 5px 10px;
    border: 2px solid #0f8;
    background-color: #001200;
    text-shadow: 0 0 5px #0f8;
    font-family: 'PrintChar21', monospace;
    flex: 1;
    margin: 0 10px;
}

#ping-btn {
    background-color: #000;
    color: #0f8;
    border: 3px solid #0f8;
    padding: 8px 16px;
    font-size: 1.6em;
    cursor: pointer;
    text-shadow: 0 0 5px #0f8;
    box-shadow: 0 0 10px #0f8;
    font-family: 'PrintChar21', monospace;
    transition: all 0.2s;
}

#ping-btn:hover {
    background-color: #0f82;
    color: #000;
}

#ping-btn:active {
    transform: scale(0.95);
    box-shadow: 0 0 20px #0f8;
}

.coordinates {
    font-size: 1.4em;
    text-shadow: 0 0 5px #0f8;
    display: flex;
    flex-direction: column;
    padding: 5px 10px;
    border: 2px solid #0f8;
    background-color: #001200;
    min-width: 120px;
}

.radar-screen-container {
    position: relative;
    width: min(80vw, 80vh);
    height: min(80vw, 80vh);
    margin: 0 auto;
}

.radar-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    aspect-ratio: 1/1;
    background-color: #001200;
    border: 6px solid #333;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 0 15px #0f8, inset 0 0 40px rgba(0, 50, 0, 0.8);
}

.radar-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle, transparent 10%, rgba(0, 255, 0, 0.05) 10%, transparent 80%),
        radial-gradient(circle, transparent 20%, rgba(0, 255, 0, 0.03) 20%, transparent 80%),
        radial-gradient(circle, transparent 30%, rgba(0, 255, 0, 0.03) 30%, transparent 80%),
        radial-gradient(circle, transparent 40%, rgba(0, 255, 0, 0.03) 40%, transparent 80%),
        linear-gradient(to right, rgba(0, 255, 0, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 255, 0, 0.05) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 20px 20px, 20px 20px;
    background-position: center center;
}

.range-circles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.range-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(0, 255, 0, 0.3);
    transform: translate(-50%, -50%);
    left: 50%;
    top: 50%;
}

.range-label {
    position: absolute;
    color: #0f8;
    font-size: 1.2em;
    text-shadow: 0 0 5px #0f8;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.axis-line {
    position: absolute;
    background-color: rgba(0, 255, 0, 0.2);
    pointer-events: none;
}

.axis-line-horizontal {
    width: 100%;
    height: 1px;
    top: 50%;
    left: 0;
}

.axis-line-vertical {
    width: 1px;
    height: 100%;
    left: 50%;
    top: 0;
}

.radar-sweep {
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: 0 0;
    width: 50%;
    height: 2px;
    background: linear-gradient(to right, rgba(0, 255, 0, 0.5), transparent);
    animation: sweep 4s infinite linear;
    box-shadow: 0 0 10px #0f8;
}

@keyframes sweep {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Blips that will be created via JavaScript */
.blip {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: #0f8;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px #0f8;
}

.ping-wave {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: transparent;
    border: 2px solid #0f8;
    opacity: 1;
    box-shadow: 0 0 5px #0f8;
    animation: ping-expand 2s ease-out forwards;
}

@keyframes ping-expand {
    0% {
        width: 10px;
        height: 10px;
        opacity: 1;
    }
    100% {
        width: 100%;
        height: 100%;
        opacity: 0;
    }
}

.cardinal-label {
    position: absolute;
    color: #0f8;
    font-size: 1.2em;
    text-shadow: 0 0 3px #0f8;
    transform: translate(-50%, -50%);
    pointer-events: none;
}