/* Modern Reset & Base Variable Styles */
:root {
    --bg-color: #06080c;
    --bg-darker: #040508;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --glass-bg: rgba(11, 16, 27, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-focus: rgba(139, 92, 246, 0.4);
    
    --primary-gradient: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #3b82f6 100%);
    --neon-purple: #a78bfa;
    --neon-indigo: #818cf8;
    --neon-cyan: #22d3ee;
    --neon-green: #34d399;
    --neon-red: #fb7185;
    
    --font-outfit: 'Outfit', 'Inter', sans-serif;
    --font-inter: 'Inter', sans-serif;
    
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-inter);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Ambient Glows */
.glow-bg {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, rgba(139, 92, 246, 0.04) 50%, transparent 100%);
    top: -10%;
    left: 20%;
    z-index: -1;
    filter: blur(80px);
    pointer-events: none;
    animation: glow-float 20s infinite alternate ease-in-out;
}

@keyframes glow-float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 30px) scale(1.15); }
}

/* Container & Grid Layout */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 40px 24px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.header-title {
    font-family: var(--font-outfit);
    font-size: 3.2rem;
    font-weight: 900;
    letter-spacing: -1.5px;
    background: linear-gradient(90deg, #c084fc 0%, #818cf8 50%, #22d3ee 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    animation: title-glow 3s infinite alternate ease-in-out;
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: 1.15rem;
    font-weight: 300;
}

.workspace {
    display: grid;
    grid-template-columns: 4.5fr 7.5fr;
    gap: 28px;
    align-items: start;
}

@media (max-width: 1024px) {
    .workspace {
        grid-template-columns: 1fr;
    }
}

/* Glassmorphism Panel styles */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
    transition: var(--transition);
}

.glass-panel:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.panel-section {
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    padding-bottom: 20px;
}

.panel-section:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
}

.section-title {
    font-family: var(--font-outfit);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    color: var(--text-primary);
}

.section-title .icon {
    margin-right: 10px;
}

/* Drag & Drop Zone */
.dropzone {
    border: 2px dashed rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.01);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--neon-indigo);
    background: rgba(99, 102, 241, 0.04);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.1);
}

.upload-icon {
    color: var(--text-secondary);
    margin-bottom: 12px;
    transition: var(--transition);
}

.dropzone:hover .upload-icon {
    color: var(--neon-cyan);
    transform: translateY(-4px);
}

.upload-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.upload-text span {
    color: var(--neon-indigo);
    font-weight: 600;
}

.upload-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.dropzone-preview {
    position: relative;
    width: 100%;
    max-height: 220px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.dropzone-preview img {
    max-width: 100%;
    max-height: 200px;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.remove-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.remove-btn:hover {
    background: var(--neon-red);
    border-color: transparent;
}

/* Accordion Styling */
.accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.accordion-header .section-title {
    margin-bottom: 0;
}

.accordion-header .arrow {
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.accordion.open .accordion-header .arrow {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion.open .accordion-content {
    max-height: 500px;
    margin-top: 18px;
}

/* Inputs & Form Groups */
.form-group {
    margin-bottom: 18px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--neon-cyan);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.82rem;
    font-weight: 600;
}

/* Range input styling */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #1e293b;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--neon-indigo);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--neon-cyan);
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.7);
}

/* Number input styling */
input[type="number"] {
    width: 100%;
    background: #0f172a;
    border: 1px solid var(--glass-border);
    padding: 10px 14px;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

input[type="number"]:focus {
    border-color: var(--neon-indigo);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.25);
}

/* Checkbox & Radios */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    accent-color: var(--neon-indigo);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.checkbox-group label {
    margin-bottom: 0;
    cursor: pointer;
    font-size: 0.9rem;
}

.radio-group {
    display: flex;
    gap: 8px;
    background: #0f172a;
    padding: 4px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.radio-label {
    flex: 1;
    cursor: pointer;
    margin-bottom: 0 !important;
}

.radio-label input {
    display: none;
}

.radio-label span {
    display: block;
    text-align: center;
    padding: 8px;
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: var(--transition);
    font-weight: 500;
}

.radio-label input:checked + span {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

.device-radio {
    background: #0b0f19;
}

/* Primary Submit Button */
.btn-primary {
    display: block;
    width: 100%;
    background: var(--primary-gradient);
    color: white;
    font-family: var(--font-outfit);
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 16px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    margin-top: 28px;
    transition: var(--transition);
    box-shadow: 0 6px 24px rgba(139, 92, 246, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.55);
}

.btn-primary:active {
    transform: translateY(1px);
}

/* Status Logger Box */
.status-box {
    margin-top: 24px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 18px;
}

.status-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    margin-bottom: 10px;
}

.status-label {
    color: var(--text-secondary);
}

.status-label strong {
    color: var(--neon-cyan);
}

.status-percent {
    color: var(--neon-indigo);
    font-weight: 600;
    font-family: monospace;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background: #0f172a;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 16px;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--neon-cyan) 0%, var(--neon-indigo) 100%);
    border-radius: 4px;
    transition: width 0.4s ease;
}

.log-output {
    background: #04060b;
    border: 1px solid rgba(255, 255, 255, 0.03);
    height: 120px;
    border-radius: var(--radius-sm);
    padding: 12px;
    font-family: monospace;
    font-size: 0.8rem;
    overflow-y: auto;
    color: var(--text-secondary);
}

.log-line {
    margin-bottom: 6px;
    line-height: 1.3;
}

.log-line:last-child {
    margin-bottom: 0;
}

.text-cyan { color: var(--neon-cyan); }
.text-purple { color: var(--neon-purple); }
.text-green { color: var(--neon-green); }
.text-red { color: var(--neon-red); }

/* Viewport / 3D Viewer Panel */
.viewport-container {
    width: 100%;
    height: 400px;
    background: #04060a;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    margin-bottom: 24px;
}

.viewport-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
}

.placeholder-icon {
    margin-bottom: 16px;
    opacity: 0.4;
    animation: pulse 2.5s infinite ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.05); opacity: 0.7; }
    100% { transform: scale(1); opacity: 0.4; }
}

.viewport-placeholder p {
    font-size: 0.9rem;
    max-width: 320px;
}

/* Tabs Navigation & Panels */
.tabs-container {
    width: 100%;
}

.tabs-header {
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 20px;
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.tab-btn:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.tab-btn.active {
    color: var(--neon-indigo);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-gradient);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Images gallery preview */
.gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 580px) {
    .gallery {
        grid-template-columns: 1fr;
    }
}

.gallery-item h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.gallery-image-box {
    background: #04060a;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    height: 180px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.gallery-image-box img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.img-placeholder {
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* File list downloads styling */
.files-list {
    background: #04060a;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 12px;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.file-item:last-child {
    border-bottom: none;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-icon {
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.file-icon svg {
    color: var(--neon-cyan);
    filter: drop-shadow(0 0 3px rgba(34, 211, 238, 0.3));
    transition: var(--transition);
}

.file-item:hover .file-icon svg {
    color: var(--neon-purple);
    filter: drop-shadow(0 0 5px rgba(167, 139, 250, 0.5));
    transform: scale(1.1);
}

.file-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.file-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.btn-download {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-download:hover {
    background: var(--neon-indigo);
    border-color: transparent;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

/* Language Switcher Styles */
.top-bar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 15px;
    width: 100%;
}

.lang-switcher {
    display: flex;
    align-items: center;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 3px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.lang-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 20px;
    color: var(--text-secondary);
    font-family: var(--font-outfit);
    font-size: 0.8rem;
    font-weight: 600;
    transition: var(--transition);
}

.lang-btn svg {
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.4);
    transition: var(--transition);
}

.lang-btn.active {
    color: var(--text-primary);
    background: var(--primary-gradient);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.25);
}

.lang-btn.active svg {
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.lang-btn:hover:not(.active) {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.lang-btn:hover svg {
    transform: scale(1.1);
}