/**
 * RTI Configurator Stylesheet
 * Version: 1.0.0
 */

/* ====================================================== */
/* =================== ЭТАП 2: CSS ====================== */
/* ====================================================== */

:root {
    --rti-primary-color: #1e73be;
    --rti-primary-hover-color: #165a96;
    --rti-bg-color: #f8f9fa;
    --rti-panel-bg-color: #ffffff;
    --rti-text-color: #212529;
    --rti-text-light-color: #6c757d;
    --rti-border-color: #dee2e6;
    --rti-error-color: #dc3545;
    --rti-success-color: #198754;
    --rti-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

#rti-configurator-app * {
    box-sizing: border-box;
}

#rti-configurator-app {
    font-family: var(--rti-font-family);
    color: var(--rti-text-color);
    line-height: 1.5;
    background-color: var(--rti-bg-color);
    padding: 20px;
}

.hidden {
    display: none !important;
}

.rti-cfg-main-container {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    max-width: 1280px;
    height: 85vh;
    min-height: 720px;
    background-color: var(--rti-panel-bg-color);
    border-radius: 12px;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    border: 1px solid var(--rti-border-color);
    margin: 0 auto;
}

.rti-cfg-controls-panel {
    width: 360px;
    padding: 24px;
    background-color: var(--rti-panel-bg-color);
    border-right: 1px solid var(--rti-border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.rti-cfg-visualization-panel {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 300px;
    background-color: var(--rti-bg-color);
}

.rti-cfg-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--rti-border-color);
}
.rti-cfg-header .rti-cfg-title {
    font-size: 1.75rem;
    font-weight: 600;
}
.rti-cfg-header p {
    color: var(--rti-text-light-color);
    font-size: 0.9rem;
    margin: 4px 0 0;
}

.rti-cfg-form-section {
    margin-bottom: 24px;
}
.rti-cfg-section-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-weight: 600;
    font-size: 1rem;
}
.rti-cfg-section-sublabel {
    font-weight: 500;
    color: var(--rti-text-light-color);
    font-size: 0.9rem;
    margin: 16px 0 8px;
    padding-bottom: 4px;
    border-bottom: 1px dashed var(--rti-border-color);
}

.rti-cfg-form-group {
    margin-bottom: 16px;
}
.rti-cfg-form-hint {
    font-size: 0.8rem;
    color: var(--rti-text-light-color);
    margin-top: 4px;
}
.rti-cfg-form-status {
    font-size: 0.9rem;
    margin-top: 15px;
    text-align: center;
    font-weight: 500;
}
.rti-cfg-form-status.success {
    color: var(--rti-success-color);
}
.rti-cfg-form-status.error {
    color: var(--rti-error-color);
}

.rti-cfg-tooltip {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: #e9ecef;
    color: var(--rti-text-light-color);
    font-size: 12px;
    font-weight: bold;
    cursor: help;
    position: relative;
}
.rti-cfg-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 50%;
    bottom: 120%;
    transform: translateX(-50%);
    background-color: #343a40;
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: normal;
    line-height: 1.4;
    white-space: pre-wrap;
    width: max-content;
    max-width: 250px;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}
.rti-cfg-tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

#rti-configurator-app input[type="text"],
#rti-configurator-app input[type="number"],
#rti-configurator-app textarea,
#rti-configurator-app select {
    width: 100%;
    padding: 10px 12px;
    background-color: #fff;
    border: 1px solid var(--rti-border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
#rti-configurator-app input[type="number"] {
    -moz-appearance: textfield;
}
#rti-configurator-app input:focus,
#rti-configurator-app textarea:focus,
#rti-configurator-app select:focus {
    outline: none;
    border-color: var(--rti-primary-color);
    box-shadow: 0 0 0 3px rgba(30, 115, 190, 0.2);
}
#rti-configurator-app input.invalid {
    border-color: var(--rti-error-color);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

.rti-cfg-calculations-block {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--rti-border-color);
}
.rti-cfg-calculations-block h4 {
    margin: 0 0 12px 0;
    font-size: 1.1rem;
}
.rti-cfg-calc-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.95rem;
}
.rti-cfg-calc-row strong {
    font-size: 1rem;
    font-weight: 600;
    color: var(--rti-primary-color);
}

.rti-cfg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 18px;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.2s;
    width: 100%;
}
.rti-cfg-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.rti-cfg-btn-primary {
    background-color: var(--rti-primary-color);
    color: white;
}
.rti-cfg-btn-primary:not(:disabled):hover {
    background-color: var(--rti-primary-hover-color);
}
.rti-cfg-btn-secondary {
    background-color: #e9ecef;
    color: var(--rti-text-color);
    border-color: #dee2e6;
}
.rti-cfg-btn-secondary:not(:disabled):hover {
    background-color: #dde2e7;
}

.rti-cfg-tabs {
    display: flex;
    background-color: var(--rti-panel-bg-color);
    border-bottom: 1px solid var(--rti-border-color);
    flex-shrink: 0;
}
.rti-cfg-tab-button {
    padding: 12px 20px;
    border: none;
    background-color: transparent;
    color: var(--rti-text-light-color);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
    flex-grow: 1;
}
.rti-cfg-tab-button.active {
    color: var(--rti-primary-color);
    border-bottom-color: var(--rti-primary-color);
}
.rti-cfg-tab-button:hover:not(.active) {
    color: var(--rti-text-color);
}

.rti-cfg-view-container-wrapper {
    flex-grow: 1;
    position: relative;
    overflow: hidden;
}
.rti-cfg-view-container {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}
.rti-cfg-view-container.active {
    opacity: 1;
    visibility: visible;
}

#rti-cfg-svg-drawing,
#view-3d canvas {
    background-image:
        linear-gradient(rgba(0,0,0,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.05) 1px, transparent 1px);
    background-size: 20px 20px;
    user-select: none;
    width: 100%;
    height: 100%;
}
#view-3d canvas {
    cursor: grab;
}
#view-3d canvas:active {
    cursor: grabbing;
}

.rti-cfg-image-upload-container {
    padding: 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}
#rti-cfg-image-preview-wrapper {
    margin: 20px 0;
    border: 2px dashed var(--rti-border-color);
    border-radius: 8px;
    padding: 10px;
    min-height: 150px;
    width: 100%;
    max-width: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--rti-panel-bg-color);
    transition: border-color 0.2s;
}
#rti-cfg-image-preview-wrapper.dragover {
    border-color: var(--rti-primary-color);
    background-color: #f0f8ff;
}
.rti-cfg-image-preview-placeholder {
    color: var(--rti-text-light-color);
}
#rti-cfg-image-preview-wrapper img {
    max-width: 100%;
    max-height: 250px;
    object-fit: contain;
}
.rti-cfg-image-upload-container .rti-cfg-btn {
    max-width: 250px;
}

.rti-cfg-actions-toolbar {
    padding: 15px;
    display: flex;
    background-color: var(--rti-panel-bg-color);
    border-top: 1px solid var(--rti-border-color);
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.rti-cfg-actions-info {
    margin: 0;
    color: var(--rti-text-light-color);
    font-size: 0.9rem;
    text-align: center;
}

.rti-cfg-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.rti-cfg-modal-overlay:not(.hidden) {
    opacity: 1;
    visibility: visible;
}
.rti-cfg-modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    width: 100%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    transform: scale(0.9);
    transition: transform 0.3s;
}
.rti-cfg-modal-overlay:not(.hidden) .rti-cfg-modal-content {
    transform: scale(1);
}
.rti-cfg-modal-close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 2.2rem;
    line-height: 1;
    cursor: pointer;
    color: var(--rti-text-light-color);
    transition: color 0.2s;
}
.rti-cfg-modal-close-btn:hover {
    color: var(--rti-text-color);
}

.rti-cfg-loader-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}
.rti-cfg-loader-overlay:not(.hidden) {
    opacity: 1;
    visibility: visible;
}
.rti-cfg-spinner {
    border: 5px solid #e9ecef;
    border-top: 5px solid var(--rti-primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: rti-cfg-spin 1s linear infinite;
}
.rti-cfg-spinner-small {
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: rti-cfg-spin 0.8s linear infinite;
}

@keyframes rti-cfg-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 900px) {
    #rti-configurator-app {
        padding: 0;
    }
    .rti-cfg-main-container {
        flex-direction: column;
        height: auto;
        max-height: none;
        min-height: 100vh;
        border-radius: 0;
        border: none;
    }
    .rti-cfg-controls-panel {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--rti-border-color);
    }
    .rti-cfg-visualization-panel {
        min-height: 450px;
    }
}