/* =============================================================
   CFD PANEL STYLES
   Interactive CFD aerofoil visualization control panel
   ============================================================= */

.cfd-panel {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(8,12,18,0.88);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(0,196,176,0.2);
    border-radius: 6px;
    padding: 7px 10px;
    z-index: 6;
    width: 195px;
    font: 10px/1.4 'Roboto Mono', monospace;
    color: #7a8e9e;
    user-select: none;
}

.cfd-panel summary {
    cursor: pointer;
    color: #00c4b0;
    font-size: 9px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.cfd-panel summary::before {
    content: '▾';
    font-size: 8px;
}

.cfd-panel:not([open]) summary::before {
    content: '▸';
}

.cfd-panel .cfd-row {
    display: flex;
    align-items: center;
    gap: 5px;
    margin: 4px 0 0;
    overflow: hidden;
}

.cfd-panel .cfd-row span:first-child {
    width: 50px;
    flex-shrink: 0;
    font-size: 9px;
}

.cfd-panel input[type=range] {
    flex: 1;
    min-width: 0;
    height: 2px;
    accent-color: #00c4b0;
    background: rgba(0,196,176,0.15);
    border-radius: 1px;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.cfd-panel input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #00c4b0;
    border: none;
}

.cfd-panel .cfd-v {
    width: 28px;
    text-align: right;
    color: #b0bfc8;
    font-size: 9px;
}

.cfd-panel .cfd-sep {
    border: none;
    border-top: 1px solid rgba(0,196,176,0.12);
    margin: 5px 0 3px;
}

.cfd-panel .cfd-toggles {
    display: flex;
    gap: 4px;
    margin: 4px 0 0;
    flex-wrap: wrap;
}

.cfd-panel .cfd-btn {
    font: 9px/1 'Roboto Mono', monospace;
    padding: 3px 7px;
    border: 1px solid rgba(0,196,176,0.25);
    border-radius: 3px;
    background: transparent;
    color: #7a8e9e;
    cursor: pointer;
    transition: all 0.15s;
}

.cfd-panel .cfd-btn.active {
    background: rgba(0,196,176,0.15);
    color: #00c4b0;
    border-color: rgba(0,196,176,0.5);
}

.cfd-panel .cfd-btn:hover {
    border-color: rgba(0,196,176,0.45);
    color: #00c4b0;
}

.cfd-panel .cfd-readout {
    display: flex;
    justify-content: space-between;
    margin: 5px 0 2px;
    font-size: 9px;
    color: #5a6e7e;
}

.cfd-panel .cfd-readout strong {
    color: #00c4b0;
    font-weight: 600;
}

.cfd-panel select {
    background: rgba(0,196,176,0.08);
    color: #b0bfc8;
    border: 1px solid rgba(0,196,176,0.25);
    border-radius: 3px;
    font: 9px/1.4 'Roboto Mono', monospace;
    padding: 3px 6px;
    outline: none;
    cursor: pointer;
    flex: 1;
    min-width: 0;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5'%3E%3Cpath d='M0 0l4 5 4-5z' fill='%2300c4b0'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 5px center;
    padding-right: 16px;
}

.cfd-panel select:focus {
    border-color: rgba(0,196,176,0.5);
}

.cfd-panel select option {
    background: #0c1018;
    color: #b0bfc8;
}

/* ===== CFD JOYSTICK ===== */
.cfd-joystick {
    position: absolute;
    right: 12px;
    top: 140px;
    width: 86px;
    height: 86px;
    border-radius: 50%;
    border: 1px solid rgba(0, 196, 176, 0.28);
    background: radial-gradient(circle at 50% 50%, rgba(8, 12, 18, 0.72) 0%, rgba(8, 12, 18, 0.9) 78%);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.03);
    z-index: 7;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

.cfd-joystick-thumb {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 30px;
    height: 30px;
    margin-left: -15px;
    margin-top: -15px;
    border-radius: 50%;
    border: 1px solid rgba(0, 196, 176, 0.58);
    background: radial-gradient(circle at 35% 30%, rgba(0, 210, 190, 0.9), rgba(0, 128, 118, 0.72));
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.35);
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

.cfd-joystick-label {
    position: absolute;
    left: 50%;
    top: calc(100% + 6px);
    transform: translateX(-50%);
    font: 9px/1 'Roboto Mono', monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(122, 142, 158, 0.9);
    pointer-events: none;
    white-space: nowrap;
}

/* ===== CFD PANEL MOBILE OVERRIDES ===== */
@media (max-width: 768px) {
    .cfd-panel {
        position: absolute !important;
        left: 15px !important;
        right: 15px !important;
        bottom: max(env(safe-area-inset-bottom), 22px) !important;
        top: auto !important;
        width: auto !important;
        backdrop-filter: none !important;
        background: rgba(8,12,18,0.95) !important;
        padding: 10px 14px !important;
        margin: 0 !important;
        font-size: 10px !important;
        z-index: 5;
        max-height: 40svh;
        overflow-y: auto;
    }

    .cfd-panel summary {
        font-size: 10px !important;
    }

    .cfd-panel .cfd-row {
        gap: 8px !important;
        margin: 6px 0 0 !important;
    }

    .cfd-panel .cfd-row span:first-child {
        width: 55px !important;
        font-size: 10px !important;
    }

    .cfd-panel input[type=range] {
        height: 3px !important;
    }

    .cfd-panel input[type=range]::-webkit-slider-thumb {
        width: 14px !important;
        height: 14px !important;
    }

    .cfd-panel .cfd-v {
        width: 32px !important;
        font-size: 10px !important;
    }

    .cfd-panel .cfd-toggles {
        gap: 6px !important;
    }

    .cfd-panel .cfd-btn {
        font-size: 10px !important;
        padding: 5px 10px !important;
    }

    .cfd-panel .cfd-readout {
        font-size: 10px !important;
    }

    .cfd-joystick {
        width: 82px;
        height: 82px;
        right: 14px;
        top: 62%;
        margin-top: 0;
    }
}