/* ============================================================
   3D MODEL VIEWER — SKETCHUP-STYLE CAMERA CONTROLS
   Premium architectural visualization viewer
   ============================================================ */

.viewer-3d-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #0a0908;
    border: 1px solid var(--color-line, #2a2824);
    overflow: hidden;
    border-radius: 2px;
}

.viewer-3d-wrapper.fullscreen-active {
    width: 100vw !important;
    height: 100vh !important;
    border: none;
    border-radius: 0;
    aspect-ratio: unset;
    margin: 0;
    padding: 0;
}

/* Canvas */
.viewer-3d-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

.viewer-3d-canvas:active {
    cursor: grabbing;
}

.viewer-3d-canvas.walk-mode {
    cursor: crosshair;
}

.viewer-3d-canvas.zoom-window-mode {
    cursor: zoom-in;
}

/* ---- TOOLBAR ---- */
.viewer-3d-toolbar {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    gap: 4px;
    z-index: 10;
    flex-wrap: wrap;
}

.viewer-3d-toolbar button {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(20, 19, 17, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.75);
    font-size: 14px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

.viewer-3d-toolbar button:hover {
    background: rgba(40, 38, 34, 0.95);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.15);
}

.viewer-3d-toolbar button.active {
    background: rgba(180, 120, 60, 0.35);
    border-color: rgba(180, 120, 60, 0.6);
    color: #e8c88a;
}

.viewer-3d-toolbar button svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Tooltip */
.viewer-3d-toolbar button[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 8px;
    background: rgba(20, 19, 17, 0.95);
    color: rgba(255, 255, 255, 0.9);
    font-size: 10px;
    font-family: var(--font-body, sans-serif);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    white-space: nowrap;
    border-radius: 3px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.viewer-3d-toolbar button[data-tooltip]:hover::after {
    opacity: 1;
}

/* ---- FULLSCREEN BUTTON (top-right) ---- */
.viewer-3d-fullscreen-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(20, 19, 17, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.75);
    font-size: 14px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.viewer-3d-fullscreen-btn:hover {
    background: rgba(40, 38, 34, 0.95);
    color: #fff;
}

/* ---- WALK MODE INSTRUCTIONS ---- */
.viewer-3d-walk-instructions {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 18px;
    background: rgba(20, 19, 17, 0.9);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.85);
    font-size: 11px;
    font-family: var(--font-body, sans-serif);
    letter-spacing: 0.5px;
    text-align: center;
    border-radius: 6px;
    display: none;
    z-index: 10;
    white-space: nowrap;
}

.viewer-3d-walk-instructions.visible {
    display: block;
    animation: fadeInUp 0.3s ease;
}

/* ---- ZOOM SELECTION BOX ---- */
.viewer-3d-selection-box {
    position: absolute;
    border: 2px dashed rgba(232, 200, 138, 0.7);
    background: rgba(180, 120, 60, 0.1);
    pointer-events: none;
    z-index: 10;
    display: none;
}

/* ---- LOADING OVERLAY ---- */
.viewer-3d-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(10, 9, 8, 0.95);
    z-index: 20;
}

.viewer-3d-loading.hidden {
    display: none;
}

.viewer-3d-loading-text {
    font-family: var(--font-heading, serif);
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
}

.viewer-3d-progress-bar {
    width: 200px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.viewer-3d-progress-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #b4783c, #e8c88a);
    transition: width 0.3s ease;
}

.viewer-3d-loading-percent {
    font-family: var(--font-body, sans-serif);
    font-size: 0.7rem;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 8px;
}

/* ---- INFO BAR (bottom) ---- */
.viewer-3d-info-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 8px 14px;
    background: rgba(20, 19, 17, 0.85);
    backdrop-filter: blur(8px);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 10;
}

.viewer-3d-info-bar span {
    font-family: var(--font-body, sans-serif);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.viewer-3d-info-bar .viewer-3d-mode-label {
    color: #e8c88a;
    font-weight: 600;
}

/* ---- ANIMATIONS ---- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .viewer-3d-wrapper {
        aspect-ratio: 4 / 3;
    }

    .viewer-3d-toolbar {
        top: 8px;
        left: 8px;
        gap: 3px;
    }

    .viewer-3d-toolbar button {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }

    .viewer-3d-toolbar button svg {
        width: 15px;
        height: 15px;
    }

    .viewer-3d-walk-instructions {
        font-size: 9px;
        padding: 7px 12px;
        bottom: 50px;
    }
}

@media (max-width: 480px) {
    .viewer-3d-wrapper {
        aspect-ratio: 1 / 1;
    }

    .viewer-3d-toolbar button {
        width: 28px;
        height: 28px;
        font-size: 11px;
    }

    .viewer-3d-toolbar button svg {
        width: 13px;
        height: 13px;
    }

    .viewer-3d-toolbar button[data-tooltip]::after {
        display: none;
    }
}