:root {
    --bg-color: #F0F0F0;
    --text-color: #111111;
    --accent-color: #FF3300;
    /* International Orange */
    --secondary-color: #0033FF;
    /* Tech Blue */
    --grid-color: #D0D0D0;
    --font-main: 'Space Grotesk', sans-serif;
    --font-mono: 'Space Mono', monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow: hidden;
    /* App-like feel */
    height: 100vh;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Layout */
.layout {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background: #FFFFFF;
    border-right: 2px solid var(--text-color);
    display: flex;
    flex-direction: column;
    padding: 2rem;
    justify-content: space-between;
    z-index: 10;
}

.brand h1 {
    font-size: 2.5rem;
    line-height: 0.9;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 1rem;
}

.status-indicator {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dot {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: blink 2s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.nav-item {
    text-decoration: none;
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid transparent;
    transition: all 0.3s;
}

.nav-item:hover,
.nav-item.active {
    color: var(--secondary-color);
    border-bottom: 1px solid var(--secondary-color);
    padding-left: 10px;
}

.meta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #888;
}

/* Main Content */
.content {
    flex: 1;
    position: relative;
    overflow-y: auto;
    scroll-behavior: smooth;
}

.page {
    display: none;
    padding: 4rem;
    min-height: 100vh;
    animation: fadeIn 0.5s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header {
    margin-bottom: 4rem;
    border-bottom: 4px solid var(--text-color);
    padding-bottom: 1rem;
}

.page-header h2 {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: -2px;
}

.lead {
    font-family: var(--font-mono);
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-top: 0.5rem;
}

/* Cards */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

.card {
    background: #fff;
    border: 2px solid var(--text-color);
    padding: 2rem;
    box-shadow: 10px 10px 0px var(--text-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translate(-5px, -5px);
    box-shadow: 15px 15px 0px var(--accent-color);
}

.card h3 {
    font-family: var(--font-mono);
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

/* Marquee */
.marquee-container {
    background: var(--text-color);
    color: #fff;
    padding: 1rem 0;
    overflow: hidden;
    white-space: nowrap;
    margin: 4rem -4rem;
    /* Break out of padding */
    transform: rotate(-2deg);
}

.marquee {
    display: inline-block;
    animation: scroll 20s linear infinite;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* Generator */
.generator-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    min-height: 70vh;
}

.editor-pane,
.preview-pane {
    background: #fff;
    border: 2px solid var(--text-color);
    display: flex;
    flex-direction: column;
}

.pane-header {
    background: var(--text-color);
    color: #fff;
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.render-engine-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.render-engine-selector label {
    font-weight: bold;
}

.render-engine-selector select {
    background: #fff;
    color: var(--text-color);
    border: 2px solid var(--accent-color);
    padding: 0.2rem 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    font-weight: bold;
}

.render-engine-selector select:hover {
    background: var(--accent-color);
    color: #fff;
}

.render-engine-selector select:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Модификаторы 3D печати */
.print-modifiers-panel {
    background: #f8f8f8;
    border: 2px solid var(--text-color);
    border-top: none;
    padding: 0;
}

.modifiers-header {
    background: var(--secondary-color);
    color: #fff;
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.modifiers-content {
    padding: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.modifier-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.modifier-group label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--text-color);
}

.modifier-group input[type="number"],
.modifier-group input[type="range"],
.modifier-group select {
    padding: 0.3rem;
    border: 2px solid var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.modifier-group input[type="range"] {
    width: 100%;
}

.modifier-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.action-btn-small {
    background: var(--accent-color);
    border: 2px solid var(--accent-color);
    color: #fff;
    padding: 0.4rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s;
    grid-column: 1 / -1;
}

.action-btn-small:hover {
    background: #fff;
    color: var(--accent-color);
    transform: translateY(-1px);
}

.icon-btn-small {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    padding: 0.2rem 0.5rem;
}

/* AI Панель генерации */
.ai-request-panel {
    background: #f0f8ff;
    border: 2px solid var(--text-color);
    border-top: none;
    padding: 0;
    margin-top: 0;
}

.ai-panel-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 0.6rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.ai-panel-content {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ai-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ai-input-group label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--text-color);
}

#ai-request-input {
    width: 100%;
    min-height: 120px;
    padding: 0.8rem;
    border: 2px solid var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    resize: vertical;
    background: #fff;
    box-shadow: 2px 2px 0px var(--text-color);
}

#ai-request-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 4px 4px 0px var(--accent-color);
}

.ai-generate-btn {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: 2px solid var(--text-color);
    color: #fff;
    padding: 0.8rem;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 4px 4px 0px var(--text-color);
}

.ai-generate-btn:hover:not(:disabled) {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px var(--text-color);
}

.ai-generate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.ai-status {
    min-height: 40px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.ai-loading {
    color: var(--accent-color);
    padding: 0.5rem;
    background: #fff;
    border: 2px solid var(--accent-color);
    border-radius: 4px;
}

.ai-success {
    color: #28a745;
    padding: 0.5rem;
    background: #fff;
    border: 2px solid #28a745;
    border-radius: 4px;
    font-weight: bold;
}

.ai-error {
    color: #dc3545;
    padding: 0.5rem;
    background: #fff;
    border: 2px solid #dc3545;
    border-radius: 4px;
    font-weight: bold;
}

/* Spinner */
.viewer-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 30, 30, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    color: #fff;
    font-size: 1.2rem;
    pointer-events: all;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

#viewer-loading-text {
    font-family: var(--font-mono);
    color: var(--text-color);
    font-weight: bold;
}

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

/* Templates Panel */
.code-templates-panel {
    margin-top: 1rem;
    border: 2px solid var(--text-color);
    background: #fff;
    box-shadow: 4px 4px 0px var(--text-color);
}

.templates-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: var(--secondary-color);
    color: #fff;
    font-family: var(--font-mono);
    font-weight: bold;
    cursor: pointer;
    user-select: none;
}

.templates-header:hover {
    background: #0044ff;
}

.templates-content {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.template-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.template-select {
    width: 100%;
    padding: 0.6rem;
    border: 2px solid var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    background: #fff;
    box-shadow: 2px 2px 0px var(--text-color);
    cursor: pointer;
}

.template-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 4px 4px 0px var(--accent-color);
}

.action-btn-small {
    background: var(--secondary-color);
    border: 2px solid var(--text-color);
    color: #fff;
    padding: 0.6rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 3px 3px 0px var(--text-color);
}

.action-btn-small:hover:not(:disabled) {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0px var(--text-color);
}

.action-btn-small:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.action-btn {
    background: var(--accent-color);
    border: 2px solid var(--accent-color);
    color: #fff;
    padding: 0.4rem 1.5rem;
    font-family: var(--font-mono);
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s;
    white-space: nowrap;
}

.action-btn:hover:not(:disabled) {
    background: #fff;
    color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.icon-btn {
    background: var(--secondary-color);
    border: none;
    color: #fff;
    padding: 0.3rem 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s;
}

.icon-btn:hover {
    background: #fff;
    color: var(--secondary-color);
    transform: translateY(-1px);
}

.icon-btn:active {
    transform: translateY(0);
}

#code-editor {
    flex: 1;
}

.CodeMirror {
    height: 100%;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.output-log {
    flex: 1;
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    overflow: auto;
    background: #f8f8f8;
    white-space: pre-wrap;
    border-bottom: 1px solid #ddd;
    min-height: 100px;
    max-height: 200px;
}

#output-log {
    flex: 1;
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    overflow: auto;
    background: #f8f8f8;
    white-space: pre-wrap;
    border-bottom: 1px solid #ddd;
    min-height: 100px;
    max-height: 200px;
}

#viewer-container canvas {
    display: block;
    width: 100%;
    height: 100%;
    outline: none;
    cursor: grab;
}

#viewer-container canvas:active {
    cursor: grabbing;
}

#viewer-container {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    position: relative;
    min-height: 400px;
    border-top: 2px solid var(--text-color);
    overflow: hidden;
}

.viewer-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: #666;
    z-index: 1;
}

#viewer-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: #666;
    z-index: 1;
}

/* Abstract Visual */
.visual-block {
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.abstract-shape {
    width: 100px;
    height: 100px;
    background: var(--secondary-color);
    border-radius: 50%;
    position: relative;
}

.abstract-shape::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-color);
    top: -20px;
    left: 20px;
    border-radius: 0;
}

.abstract-shape::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--text-color);
    top: 20px;
    left: -20px;
    transform: rotate(45deg);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--text-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* Documentation */
.doc-content {
    max-width: 800px;
    line-height: 1.6;
}

.doc-content h3 {
    font-family: var(--font-mono);
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.doc-content ol,
.doc-content ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.doc-content li {
    margin-bottom: 0.5rem;
}

.doc-content code {
    background: #f0f0f0;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.doc-content hr {
    border: none;
    border-top: 2px solid var(--text-color);
    margin: 2rem 0;
}

.doc-content a {
    color: var(--secondary-color);
    text-decoration: none;
}

.doc-content a:hover {
    text-decoration: underline;
}

.doc-content pre {
    background: #f8f8f8;
    padding: 1.5rem;
    border-radius: 5px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.9em;
    border: 2px solid var(--text-color);
    box-shadow: 4px 4px 0px var(--text-color);
    margin: 1rem 0;
    line-height: 1.6;
}

.doc-content pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
}

.doc-content h4 {
    font-family: var(--font-mono);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-size: 1.2rem;
    font-weight: 700;
}

@media (max-width: 1024px) {
    body {
        overflow-x: hidden;
        overflow-y: auto;
        height: auto;
        min-height: 100vh;
    }

    .layout {
        flex-direction: column;
        height: auto;
        min-height: 100vh;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 2px solid var(--text-color);
        padding: 1rem;
        gap: 1rem;
    }

    .brand h1 {
        font-size: 2rem;
    }

    nav {
        flex-direction: row;
        gap: 0.75rem;
        flex-wrap: wrap;
    }

    .nav-item {
        font-size: 0.9rem;
        padding: 0.4rem 0.6rem;
        border: 1px solid var(--text-color);
    }

    .nav-item:hover,
    .nav-item.active {
        padding-left: 0.6rem;
    }

    .meta {
        display: none;
    }

    .page {
        padding: 1rem;
        min-height: auto;
    }

    .page-header {
        margin-bottom: 1.5rem;
    }

    .page-header h2 {
        font-size: 2rem;
        letter-spacing: -1px;
    }

    .lead {
        font-size: 0.9rem;
    }

    .grid-2,
    .generator-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .marquee-container {
        margin: 1.5rem -1rem;
        transform: none;
    }

    .marquee {
        font-size: 1rem;
    }

    #viewer-container {
        height: 55vh;
        min-height: 280px;
    }

    .doc-content pre {
        padding: 1rem;
        font-size: 0.8em;
    }
}

@media (max-width: 640px) {
    .pane-header {
        padding: 0.5rem;
        align-items: flex-start;
    }

    .header-controls {
        width: 100%;
        justify-content: flex-start;
    }

    .render-engine-selector {
        width: 100%;
        flex-wrap: wrap;
    }

    .render-engine-selector select {
        width: 100%;
    }

    .icon-btn,
    .action-btn,
    .action-btn-small {
        width: 100%;
        text-align: center;
    }

    .modifiers-content {
        grid-template-columns: 1fr;
    }

    #viewer-container {
        min-height: 240px;
    }
}