:root {
    /* Clayens Brand Colors */
    --clayens-orange: #2855E2;
    --clayens-gray: #7e868b;
    --clayens-gray-light: #a8aeb2;
    --clayens-blue-dark: #275157;
    --clayens-black: #120e0b;
    --clayens-white: #ffffff;

    /* UI Colors */
    --bg-primary: #f5f6f7;
    --bg-panel: #ffffff;
    --bg-card: #f8f9fa;
    --bg-input: #ffffff;
    --border: #e2e4e6;
    --text-primary: var(--clayens-black);
    --text-secondary: var(--clayens-gray);
    --text-muted: #9ca3af;
    --shadow: rgba(18, 14, 11, 0.08);
}

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

body {
    font-family: "Inter", system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    font-size: 15px;
}

/* Layout */
.main-container {
    display: grid;
    grid-template-columns: 420px 1fr 380px;
    height: 100vh;
}

/* Sidebars */
.left-column,
.right-column {
    background: var(--bg-panel);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.left-column {
    border-right: 1px solid var(--border);
    box-shadow: 2px 0 8px var(--shadow);
}

.right-column {
    border-left: 1px solid var(--border);
    box-shadow: -2px 0 8px var(--shadow);
}

.sidebar-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.sidebar-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border);
    background: var(--bg-panel);
}

/* Sidebar Header */
.sidebar-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-panel);
    min-height: 88px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.brand-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 6px;
}

.brand-fabera {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2855E2;
    letter-spacing: 0.02em;
}

.brand-separator {
    font-size: 1.3rem;
    font-weight: 300;
    color: #959494;
}

.brand-clayens {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ff8300;
    letter-spacing: 0.02em;
}

.brand-results {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--clayens-gray);
    letter-spacing: 0.02em;
}

.brand-subtitle {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--clayens-gray);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

/* Language Selector */
.language-selector {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-top: 12px;
}

.lang-btn {
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.05em;
}

.lang-btn:hover {
    background: var(--bg-input);
    border-color: var(--clayens-gray-light);
    color: var(--text-primary);
}

.lang-btn.active {
    background: var(--clayens-orange);
    border-color: var(--clayens-orange);
    color: white;
    box-shadow: 0 1px 4px rgba(40, 85, 226, 0.25);
}

/* Sections */
.section {
    margin-bottom: 24px;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--clayens-gray);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-label::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* Upload Zone */
.upload-section {
    background: var(--bg-card);
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    margin-bottom: 12px;
}

.upload-section:hover {
    border-color: var(--clayens-orange);
    background: rgba(40, 85, 226, 0.04);
}

.upload-label {
    display: block;
    cursor: pointer;
}

.drop-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 12px;
    color: var(--clayens-orange);
}

.drop-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.drop-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.file-name {
    display: none;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    color: #059669;
    font-weight: 500;
}

/* Upload Loader */
.upload-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: rgba(40, 85, 226, 0.04);
    border: 1px solid rgba(40, 85, 226, 0.2);
    border-radius: 8px;
    margin-top: 12px;
}

.loader-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(40, 85, 226, 0.2);
    border-top-color: var(--clayens-orange);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loader-text {
    font-size: 0.85rem;
    color: var(--clayens-orange);
    font-weight: 500;
}

.loader-subtext {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 400;
    text-align: center;
}

/* Inputs */
.input-group-vertical {
    margin-bottom: 14px;
}

.input-group-vertical label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 7px;
}

.select-wrap {
    position: relative;
}

.select-wrap::after {
    content: "▾";
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    font-size: 0.75rem;
}

select,
input[type="number"],
input[type="text"] {
    width: 100%;
    padding: 12px 15px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

select {
    appearance: none;
    cursor: pointer;
    padding-right: 36px;
}

select:hover,
input:hover {
    border-color: var(--clayens-gray-light);
}

select:focus,
input:focus {
    outline: none;
    border-color: var(--clayens-orange);
    box-shadow: 0 0 0 3px rgba(40, 85, 226, 0.04);
}

input[type="number"] {
    -moz-appearance: textfield;
}

input:disabled {
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: not-allowed;
}

/* Radio Buttons */
.feedback-radio-group {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.radio-option {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.radio-option:hover {
    border-color: var(--clayens-gray-light);
    background: var(--bg-input);
}

.radio-option input[type="radio"] {
    width: auto;
    margin-right: 8px;
    cursor: pointer;
}

.radio-option input[type="radio"]:checked+.radio-label {
    font-weight: 600;
    color: var(--text-primary);
}

.radio-option:has(input:checked) {
    border-color: var(--clayens-orange);
    background: rgba(40, 85, 226, 0.08);
}

.radio-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: all 0.2s;
}

/* Plane Controls */
.plane-controls {
    margin-bottom: 12px;
}

.plane-presets {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.plane-btn {
    flex: 1;
    padding: 12px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: "Inter", monospace;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.plane-btn:hover {
    background: var(--bg-input);
    border-color: var(--clayens-gray-light);
    color: var(--text-primary);
}

.plane-btn.active {
    background: rgba(40, 85, 226, 0.1);
    border-color: var(--clayens-orange);
    color: var(--clayens-orange);
}

.reset-btn {
    width: 100%;
    padding: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.reset-btn:hover {
    background: var(--bg-input);
    border-color: var(--clayens-gray-light);
    color: var(--text-primary);
}

/* Buttons */
.btn {
    width: 100%;
    padding: 15px 22px;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
}

.btn-primary {
    background: var(--clayens-orange);
    color: white;
    box-shadow: 0 2px 8px rgba(40, 85, 226, 0.25);
}

.btn-primary:hover:not(:disabled) {
    background: #2855E2;
    box-shadow: 0 4px 12px rgba(255, 131, 0, 0.35);
    transform: translateY(-1px);
}

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

.btn-full {
    margin-bottom: 14px;
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-input);
    border-color: var(--clayens-gray-light);
    color: var(--text-primary);
}

/* Viewer */
.viewer-container {
    position: relative;
    background: linear-gradient(180deg, #1a1f22 0%, #12161a 100%);
    height: 100%;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-card);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--clayens-gray-light);
}

/* Choices.js Custom Styling */

.choices[data-type*="select-multiple"] .choices__button {
    border-left-color: rgba(255, 255, 255, 0.3) !important;
}

.choices__list--multiple .choices__item {
    background-color: #2855e2 !important;
    border: 1px solid #2855e2 !important;
}