/* Fresnel Zone Simulator Styles */

/* ===== Reset & Base ===== */
* {
    box-sizing: border-box;
}

/* ===== Container & Layout ===== */
.fz-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 15px;
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
    border-radius: 12px;
    border: 1px solid #30363d;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.fz-main-section {
    display: flex;
    gap: 15px;
    min-height: 400px;
}

/* ===== 3D View Container ===== */
.fz-3d-container {
    flex: 1;
    min-width: 450px;
    background: #0a0a15;
    border-radius: 10px;
    border: 1px solid #30363d;
    position: relative;
    overflow: hidden;
}

.fz-3d-label {
    position: absolute;
    top: 12px;
    left: 12px;
    color: #58a6ff;
    font-size: 13px;
    font-weight: 600;
    z-index: 10;
    background: rgba(13, 17, 23, 0.85);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid #30363d;
}

/* Camera Controls */
.fz-camera-controls {
    position: absolute;
    top: 45px;
    left: 12px;
    display: flex;
    flex-direction: row;
    gap: 3px;
    z-index: 10;
    background: rgba(13, 17, 23, 0.9);
    padding: 4px;
    border-radius: 6px;
    border: 1px solid #30363d;
}

.fz-cam-btn {
    width: 26px;
    height: 26px;
    padding: 0;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid #30363d;
    border-radius: 4px;
    background: #21262d;
    color: #c9d1d9;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fz-cam-btn:hover {
    background: #30363d;
    border-color: #58a6ff;
    color: #58a6ff;
}

.fz-cam-btn:active {
    background: #1f6feb;
    color: #fff;
}

.fz-cam-divider {
    width: 1px;
    background: #30363d;
    margin: 2px 3px;
}

#fz-canvas {
    width: 100%;
    height: 100%;
}

/* ===== 3D Legend ===== */
.fz-3d-legend {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(13, 17, 23, 0.9);
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 10px;
    z-index: 10;
}

.fz-3d-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: #c9d1d9;
    margin-bottom: 4px;
}

.fz-3d-legend-item:last-child {
    margin-bottom: 0;
}

.fz-3d-legend-color {
    width: 14px;
    height: 14px;
    border-radius: 3px;
}

.fz-3d-legend-color.fresnel-zone {
    background: rgba(0, 255, 255, 0.5);
    border: 1px solid #00ffff;
}

.fz-3d-legend-color.clearance-zone {
    background: rgba(255, 255, 0, 0.3);
    border: 1px solid #ffff00;
}

.fz-3d-legend-color.obstacle {
    background: rgba(255, 100, 100, 0.7);
    border: 1px solid #ff6464;
}

.fz-3d-legend-color.tx {
    background: #00ff00;
    border: 1px solid #00cc00;
}

.fz-3d-legend-color.rx {
    background: #ff6b6b;
    border: 1px solid #cc5555;
}

.fz-3d-legend-color.wave-line {
    background: #00ffff;
    border: 1px solid #00cccc;
}

.fz-3d-legend-color.particles {
    background: #00ff88;
    border: 1px solid #00cc66;
}

.fz-3d-legend-color.crosssection {
    background: #ffff00;
    border: 1px solid #cccc00;
}

/* ===== Control Panel ===== */
.fz-control-panel {
    width: 280px;
    min-width: 280px;
    background: linear-gradient(180deg, #161b22 0%, #0d1117 100%);
    border-radius: 10px;
    border: 1px solid #30363d;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ===== Slider Groups ===== */
.fz-slider-group {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.fz-slider-label {
    color: #c9d1d9;
    font-size: 11px;
    font-weight: 500;
    min-width: 75px;
    width: 75px;
    flex-shrink: 0;
}

.fz-slider-value {
    color: #58a6ff;
    font-size: 11px;
    font-weight: 600;
    font-family: 'Courier New', monospace;
    min-width: 65px;
    width: 65px;
    text-align: right;
    flex-shrink: 0;
}

.fz-slider {
    flex: 1;
    max-width: 90px;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: #21262d;
    border-radius: 3px;
    outline: none;
}

.fz-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #58a6ff;
    cursor: pointer;
    border: 2px solid #0d1117;
    transition: all 0.15s ease;
}

.fz-slider::-webkit-slider-thumb:hover {
    background: #79c0ff;
    transform: scale(1.1);
}

.fz-slider.freq::-webkit-slider-thumb {
    background: #ffd43b;
}

.fz-slider.dist::-webkit-slider-thumb {
    background: #69db7c;
}

.fz-slider.obstacle::-webkit-slider-thumb {
    background: #ff6b6b;
}

/* ===== Divider ===== */
.fz-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #30363d, transparent);
    margin: 5px 0;
}

/* ===== Preset Dropdown ===== */
.fz-preset-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.fz-preset-dropdown {
    flex: 1;
    padding: 6px 10px;
    background: #21262d;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #c9d1d9;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.fz-preset-dropdown:hover {
    border-color: #58a6ff;
}

.fz-preset-dropdown:focus {
    outline: none;
    border-color: #58a6ff;
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

/* ===== Status Display ===== */
.fz-status-box {
    background: #21262d;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 12px;
}

.fz-status-title {
    color: #58a6ff;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.fz-status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 12px;
}

.fz-status-label {
    color: #8b949e;
}

.fz-status-value {
    color: #fff;
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.fz-status-indicator {
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: 6px;
    text-align: center;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fz-status-indicator.clear {
    background: rgba(46, 160, 67, 0.2);
    border: 1px solid #2ea043;
    color: #3fb950;
}

.fz-status-indicator.warning {
    background: rgba(210, 153, 34, 0.2);
    border: 1px solid #d29922;
    color: #e3b341;
}

.fz-status-indicator.blocked {
    background: rgba(248, 81, 73, 0.2);
    border: 1px solid #f85149;
    color: #ff7b72;
}

/* ===== Animation Controls ===== */
.fz-anim-controls {
    display: flex;
    gap: 5px;
    margin-top: 10px;
}

.fz-anim-btn {
    flex: 1;
    padding: 8px 4px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid #30363d;
    border-radius: 6px;
    background: #21262d;
    color: #c9d1d9;
    cursor: pointer;
    transition: all 0.2s ease;
}

.fz-anim-btn:hover {
    background: #30363d;
    border-color: #58a6ff;
}

.fz-anim-btn:active {
    background: #1f6feb;
    color: #fff;
}

.fz-anim-btn.playing {
    background: linear-gradient(145deg, #1f6feb, #58a6ff);
    border-color: #58a6ff;
    color: #fff;
}

/* ===== Bottom Section ===== */
.fz-bottom-section {
    display: flex;
    gap: 15px;
}

.fz-info-container {
    flex: 1;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 10px;
    padding: 15px;
}

.fz-info-label {
    color: #58a6ff;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.fz-formula-box {
    background: #21262d;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 10px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: #c9d1d9;
    text-align: center;
}

.fz-formula-box .math {
    color: #79c0ff;
}

.fz-formula-box .var {
    color: #ffa657;
}

.fz-params-display {
    background: #21262d;
    border-radius: 6px;
    padding: 12px;
}

.fz-params-title {
    color: #adb5bd;
    font-size: 12px;
    margin-bottom: 10px;
    font-weight: 600;
}

.fz-params-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    font-size: 13px;
    color: #e6e6e6;
}

.fz-params-grid .label {
    color: #8b949e;
}

.fz-params-grid .value {
    color: #fff;
    font-weight: 600;
}

/* ===== Cross-Section View ===== */
.fz-crosssection-section {
    width: 100%;
    background: #0d1117;
    border-radius: 10px;
    border: 1px solid #30363d;
    padding: 12px;
}

.fz-crosssection-wrapper {
    display: flex;
    gap: 10px;
}

/* Left: Longitudinal Cross-Section (4 parts) */
.fz-longitudinal-container {
    flex: 4;
    min-width: 0;
}

.fz-longitudinal-container .fz-info-label {
    color: #58a6ff;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 8px;
}

#fz-longitudinal-canvas {
    width: 100%;
    height: 160px;
    background: #0a0a15;
    border-radius: 8px;
    border: 1px solid #21262d;
}

/* Right: Circular Cross-Section (1 part) */
.fz-circular-container {
    flex: 1;
    min-width: 140px;
}

.fz-circular-container .fz-info-label {
    color: #58a6ff;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 8px;
}

#fz-crosssection-canvas {
    width: 100%;
    height: 160px;
    background: #0a0a15;
    border-radius: 8px;
    border: 1px solid #21262d;
}

.fz-crosssection-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    padding: 8px 12px;
    background: #161b22;
    border-radius: 6px;
    font-size: 11px;
    color: #8b949e;
    flex-wrap: wrap;
    gap: 10px;
}

.fz-crosssection-info b {
    color: #58a6ff;
    font-family: 'Courier New', monospace;
}

.fz-crosssection-info #fz-cs-status {
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.fz-crosssection-info #fz-cs-status.clear {
    background: rgba(35, 134, 54, 0.3);
    color: #3fb950;
}

.fz-crosssection-info #fz-cs-status.warning {
    background: rgba(210, 153, 34, 0.3);
    color: #d29922;
}

.fz-crosssection-info #fz-cs-status.blocked {
    background: rgba(248, 81, 73, 0.3);
    color: #f85149;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .fz-main-section {
        flex-direction: column;
    }
    
    .fz-3d-container {
        min-width: auto;
        min-height: 350px;
    }
    
    .fz-control-panel {
        width: 100%;
        min-width: auto;
    }
    
    .fz-bottom-section {
        flex-direction: column;
    }
}