/**
 * Pringle Printing - Client Styles
 */

/* Reset and Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== Dark Theme (Default) ===== */
:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f0f23;
    --bg-overlay: rgba(26, 26, 46, 0.95);
    --accent: #e94560;
    --accent-hover: #ff6b6b;
    --text: #eaeaea;
    --text-muted: #a0a0a0;
    --success: #4ecca3;
    --warning: #ffc93c;
    --axis-x: #ff6b6b;
    --axis-y: #4ecca3;
    --axis-z: #6b9fff;
    --border: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.2);
    --shadow: rgba(0, 0, 0, 0.3);
    --viewer-gradient-start: #0f0f23;
    --viewer-gradient-end: #1a1a2e;

    /* Legacy variable aliases */
    --bg-dark: var(--bg-primary);
    --bg-card: var(--bg-secondary);
}

/* ===== Light Theme ===== */
:root[data-theme="light"],
[data-theme="light"] {
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8ecf2;
    --bg-overlay: rgba(245, 247, 250, 0.97);
    --accent: #0984e3;
    --accent-hover: #3498db;
    --text: #2d3436;
    --text-muted: #636e72;
    --success: #00b894;
    --warning: #fdcb6e;
    --axis-x: #e17055;
    --axis-y: #00b894;
    --axis-z: #0984e3;
    --border: rgba(0, 0, 0, 0.08);
    --border-strong: rgba(0, 0, 0, 0.15);
    --shadow: rgba(0, 0, 0, 0.1);
    --viewer-gradient-start: #dfe6e9;
    --viewer-gradient-end: #f5f7fa;

    /* Legacy variable aliases */
    --bg-dark: var(--bg-primary);
    --bg-card: var(--bg-secondary);
}

/* Light theme specific overrides */
[data-theme="light"] .viewer-section {
    box-shadow: 0 4px 20px var(--shadow);
}

[data-theme="light"] .card {
    box-shadow: 0 2px 12px var(--shadow);
}

[data-theme="light"] .btn-rotate {
    background: var(--bg-secondary);
    border-color: var(--border-strong);
}

[data-theme="light"] .btn-secondary {
    background: var(--bg-secondary);
    border-color: var(--border-strong);
}

[data-theme="light"] .controls-bar {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .drop-overlay {
    background: var(--bg-overlay);
    border-color: var(--accent);
}

[data-theme="light"] .form-input,
[data-theme="light"] .form-select,
[data-theme="light"] .flat-surface-select {
    background: var(--bg-tertiary);
    border-color: var(--border-strong);
}

[data-theme="light"] .cart-item:hover {
    background: rgba(214, 48, 49, 0.08);
}

[data-theme="light"] .gcode-modal {
    background: rgba(0, 0, 0, 0.7);
}

/* ===== Theme Toggle ===== */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    border-color: var(--accent);
}

.theme-toggle-track {
    width: 36px;
    height: 20px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    position: relative;
    transition: background 0.3s ease;
}

.theme-toggle-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
}

[data-theme="light"] .theme-toggle-thumb {
    transform: translateX(16px);
}

.theme-toggle-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 2rem;
}

body {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    background: var(--bg-dark);
    color: var(--text);
    min-height: 100vh;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
}

header {
    margin-bottom: 2rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    color: var(--accent);
}

h1 span {
    font-weight: 700;
}

.subtitle {
    color: var(--text-muted);
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.main-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 1.25rem;
}

/* Viewer Section */
.viewer-section {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

#viewer, #vue-viewer {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, var(--viewer-gradient-start) 0%, var(--viewer-gradient-end) 100%);
}

/* Drop Overlay */
.drop-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-overlay);
    border: 3px dashed var(--accent);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.drop-overlay:hover {
    border-color: var(--accent-hover);
}

.drop-overlay.dragging {
    border-color: var(--success);
    background: rgba(78, 204, 163, 0.1);
}

.drop-overlay.hidden {
    display: none;
}

.drop-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.drop-text {
    font-size: 1.2rem;
    color: var(--text-muted);
}

.drop-subtext {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Loading overlay */
.loading-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.85);
    border-radius: 12px;
    z-index: 100;
}

.loading-overlay.hidden {
    display: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-card);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: 1rem;
    font-size: 1.1rem;
    color: var(--text);
}

.loading-progress {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Version badge */
.version-badge {
    position: fixed;
    bottom: 8px;
    right: 8px;
    padding: 4px 8px;
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 0.7rem;
    border-radius: 4px;
    opacity: 0.6;
    z-index: 1000;
    font-family: monospace;
}

/* Controls Bar */
.controls-bar {
    display: flex;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    flex-wrap: wrap;
    align-items: flex-start;
}

.axis-control {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.axis-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
}

.axis-label.x {
    color: var(--axis-x);
}

.axis-label.y {
    color: var(--axis-y);
}

.axis-label.z {
    color: var(--axis-z);
}

.btn-row {
    display: flex;
    gap: 0.25rem;
}

/* Buttons */
.btn {
    padding: 0.4rem 0.6rem;
    border: none;
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-rotate {
    background: var(--bg-dark);
    color: var(--text);
    border: 1px solid var(--text-muted);
}

.btn-rotate:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-rotate.x:hover {
    border-color: var(--axis-x);
    color: var(--axis-x);
}

.btn-rotate.y:hover {
    border-color: var(--axis-y);
    color: var(--axis-y);
}

.btn-rotate.z:hover {
    border-color: var(--axis-z);
    color: var(--axis-z);
}

.btn-small {
    padding: 0.3rem 0.5rem;
    font-size: 0.65rem;
}

.btn-primary {
    background: var(--accent);
    color: white;
    font-weight: 600;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-primary:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--bg-dark);
    color: var(--text);
    border: 1px solid var(--text-muted);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(var(--accent-rgb, 233, 69, 96), 0.1);
}

.btn-success {
    background: var(--success);
    color: var(--bg-dark);
    font-weight: 600;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-success:hover {
    opacity: 0.9;
}

.btn-added {
    background: var(--bg-card);
    color: var(--success);
    border: 1px solid var(--success);
    cursor: default;
}

.btn-added:hover {
    opacity: 1;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 0.85rem 1rem;
}

.card-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--border);
}

/* Info Display */
.info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.3rem 0;
    font-size: 0.85rem;
}

.info-label {
    color: var(--text-muted);
}

.info-value {
    font-weight: 600;
}

.cart-item-badge {
    display: inline-block;
    background: var(--success);
    color: var(--bg-dark);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.75rem;
    text-align: center;
}

/* Quote Display */
.quote-total {
    font-size: 2rem;
    font-weight: 700;
    color: var(--success);
    text-align: center;
    padding: 1rem 0;
}

.quote-breakdown {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

/* Warning Box */
.warning-box {
    background: rgba(255, 201, 60, 0.1);
    border: 1px solid var(--warning);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
}

.warning-title {
    color: var(--warning);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.warning-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Loading State */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem;
    color: var(--text-muted);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-muted);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Utilities */
.hidden {
    display: none !important;
}

/* Form Elements */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
}

.checkbox-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

#file-input {
    display: none;
}

.rotation-display {
    font-size: 0.7rem;
    color: var(--text-muted);
    padding: 0.4rem 0.75rem;
    background: var(--bg-dark);
    border-radius: 4px;
    align-self: center;
}

.lay-flat-control {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border);
}

.lay-flat-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lay-flat-buttons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-lay-flat {
    background: var(--bg-primary);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.6rem;
    font-size: 0.7rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-lay-flat:hover {
    background: var(--bg-card);
    border-color: var(--success);
}

.btn-lay-flat.active {
    background: var(--success);
    color: var(--bg-dark);
    border-color: var(--success);
}

.flat-surface-select {
    background: var(--bg-primary);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.5rem;
    font-size: 0.7rem;
    font-family: inherit;
    cursor: pointer;
    min-width: 120px;
}

.flat-surface-select:focus {
    outline: none;
    border-color: var(--accent);
}

.flat-surface-select option {
    background: var(--bg-card);
    color: var(--text);
}

.controls-right {
    margin-left: auto;
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Color Swatches */
.color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.color-swatch {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.color-swatch:hover {
    transform: scale(1.1);
}

.color-swatch.selected {
    border-color: var(--text);
    box-shadow: 0 0 0 2px var(--bg-dark);
}

/* Form Select */
.form-select {
    width: 100%;
    padding: 0.5rem;
    background: var(--bg-dark);
    color: var(--text);
    border: 1px solid var(--text-muted);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: var(--accent);
}

/* Material Colors */
.material-colors {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.material-color {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
    position: relative;
}

.material-color:hover {
    transform: scale(1.1);
}

.material-color.selected {
    border-color: var(--text);
}

.material-color.out-of-stock {
    opacity: 0.4;
    cursor: not-allowed;
}

.material-color.out-of-stock::after {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(45deg,
            transparent,
            transparent 3px,
            rgba(0, 0, 0, 0.3) 3px,
            rgba(0, 0, 0, 0.3) 6px);
    border-radius: 2px;
}

.selected-material-info {
    margin-top: 0.75rem;
    padding: 0.5rem;
    background: var(--bg-dark);
    border-radius: 4px;
    font-size: 0.8rem;
}

/* Cart */
.cart-section {
    margin-top: 1.5rem;
}

.cart-item {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-dark);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.cart-item:hover {
    background: rgba(233, 69, 96, 0.1);
    border-color: var(--accent);
}

.cart-thumbnail {
    width: 60px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--bg-card);
    flex-shrink: 0;
}

.cart-thumbnail canvas {
    width: 100%;
    height: 100%;
}

.cart-item-info {
    flex: 1;
    min-width: 0;
}

.cart-item-name {
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cart-item-details {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.cart-item-price {
    font-weight: 600;
    color: var(--success);
    font-size: 0.9rem;
}

.cart-item-controls {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.cart-quantity {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.cart-quantity button {
    width: 24px;
    height: 24px;
    border: none;
    background: var(--bg-card);
    color: var(--text);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
}

.cart-quantity button:hover {
    background: var(--accent);
}

.cart-quantity span {
    min-width: 20px;
    text-align: center;
    font-size: 0.85rem;
}

.cart-remove {
    font-size: 0.7rem;
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.cart-remove:hover {
    color: var(--accent);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    margin-top: 0.5rem;
    border-top: 1px solid var(--border);
    font-weight: 600;
}

.cart-total-amount {
    color: var(--success);
    font-size: 1.2rem;
}

.cart-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 1rem 0;
}

/* G-code Preview Modal */
.gcode-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.gcode-modal.hidden {
    display: none;
}

.gcode-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border-radius: 8px 8px 0 0;
}

.gcode-modal-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
}

.gcode-modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    line-height: 1;
}

.gcode-modal-close:hover {
    color: var(--accent);
}

.gcode-modal-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border-radius: 0 0 8px 8px;
    overflow: hidden;
    position: relative;
}

.gcode-canvas-container {
    flex: 1;
    position: relative;
    min-height: 400px;
}

#gcode-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.gcode-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    color: var(--text-muted);
    gap: 0.5rem;
}

.gcode-loading.hidden {
    display: none;
}

/* G-code loading progress bar */
.gcode-progress-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 80%;
    max-width: 400px;
}

.gcode-progress-status {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
}

.gcode-progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--bg-dark);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.gcode-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), #ff7b9c);
    border-radius: 4px;
    transition: width 0.2s ease-out;
}

.gcode-progress-bar.indeterminate {
    width: 30%;
    animation: indeterminate 1.5s ease-in-out infinite;
}

@keyframes indeterminate {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(400%);
    }
}

.gcode-progress-details {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

.gcode-error {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    color: var(--accent);
    padding: 2rem;
    text-align: center;
}

.gcode-fallback-container {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
}

.fallback-message {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1rem;
    background: rgba(233, 69, 96, 0.1);
    border-radius: 8px;
    border: 1px solid var(--accent);
}

.gcode-preview-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.gcode-preview-item {
    background: var(--bg-dark);
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: transform 0.2s;
}

.gcode-preview-item:hover {
    transform: scale(1.02);
    border-color: var(--accent);
}

.gcode-preview-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.gcode-preview-label {
    text-align: center;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.gcode-error.hidden {
    display: none;
}

/* Layer Slider */
.gcode-layer-slider-container {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    background: rgba(0, 0, 0, 0.8);
    padding: 0.75rem 1.5rem;
    min-width: 400px;
    border-radius: 8px;
    backdrop-filter: blur(4px);
    width: 80%;
    max-width: 600px;
    min-width: 300px;
}

.gcode-layer-slider-container.hidden {
    display: none;
}

.gcode-layer-label {
    color: #fff;
    font-size: 0.85rem;
    font-weight: 500;
    font-family: 'JetBrains Mono', monospace;
}

.gcode-layer-slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    cursor: pointer;
}

.gcode-layer-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.gcode-layer-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.gcode-controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: 1rem;
}

.gcode-toggles {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.gcode-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    user-select: none;
}

.gcode-toggle input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
    cursor: pointer;
}

.gcode-toggle-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.7rem;
    white-space: nowrap;
}

.gcode-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    justify-content: center;
}

.gcode-legend.hidden { display: none; }

.gcode-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.65rem;
}

.gcode-swatch {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.gcode-tube-warning {
    color: #ffcc44;
    font-size: 0.65rem;
    text-align: center;
}

.gcode-tube-warning.hidden { display: none; }

.btn-preview {
    background: var(--bg-dark);
    color: var(--text);
    border: 1px solid var(--axis-z);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-preview:hover {
    background: var(--axis-z);
    color: var(--bg-dark);
}

/* Responsive */
@media (max-width: 900px) {
    .main-grid {
        grid-template-columns: 1fr;
    }

    .controls-right {
        margin-left: 0;
        width: 100%;
        justify-content: flex-end;
    }
}

/* ===== Auth Styles ===== */

/* Header with auth section */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.header-left {
    text-align: left;
}

.header-right {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

#auth-section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-primary-mobile {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.header-menu-panel {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.mobile-menu-toggle {
    display: none;
}

.mobile-menu-toggle[aria-expanded="true"] {
    border-color: var(--accent);
    color: var(--accent);
}

.auth-loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text);
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
}

.user-email {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.btn-logout {
    background: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-muted);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-logout:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    position: relative;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
}

.modal-close:hover {
    color: var(--accent);
}

/* Auth Form */
.auth-form h2 {
    color: var(--accent);
    margin-bottom: 1.5rem;
    font-weight: 400;
    font-size: 1.5rem;
}

.auth-form.hidden {
    display: none;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
}

.form-input::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
}

.btn-full {
    width: 100%;
    margin-top: 1rem;
}

.auth-switch {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.auth-switch a {
    color: var(--accent);
    text-decoration: none;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.auth-error {
    background: rgba(233, 69, 96, 0.1);
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

.auth-error.hidden {
    display: none;
}

/* Google Sign-In */
.google-signin-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0.25rem;
}

.google-signin-container.hidden {
    display: none;
}

.google-signin-btn {
    display: flex;
    justify-content: center;
    width: 100%;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    margin: 1rem 0 0.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* Checkout prompt */
.checkout-auth-prompt {
    background: var(--bg-dark);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    text-align: center;
}

.checkout-auth-prompt p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.checkout-auth-prompt .btn {
    margin: 0 0.25rem;
}

/* ===== Inline Print Settings ===== */
.print-settings-inline {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    border: 1px solid var(--border);
}

.inline-checkbox {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.inline-checkbox:hover {
    color: var(--text);
}

.inline-checkbox input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
    cursor: pointer;
}

.inline-input {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
}

.inline-input label {
    color: var(--text-muted);
    white-space: nowrap;
}

.inline-input input[type="number"] {
    width: 45px;
    padding: 0.25rem 0.4rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.8rem;
    text-align: center;
}

.inline-input input[type="number"]:focus {
    outline: none;
    border-color: var(--accent);
}

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

/* Lay flat dropdown improvements */
.flat-surface-select {
    min-width: 140px;
}

.flat-surface-select option:hover {
    background: var(--accent);
}

/* ===== Checkout Modal ===== */
.checkout-modal-content {
    max-width: 720px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.checkout-modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--text);
    font-size: 1.35rem;
    font-weight: 600;
}

.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 600px) {
    .checkout-layout {
        grid-template-columns: 1fr;
    }
}

.checkout-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.75rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border);
}

/* Order Summary */
.checkout-items {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 1rem;
}

.checkout-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

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

.checkout-item-thumb {
    width: 40px;
    height: 40px;
    border-radius: 4px;
    overflow: hidden;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.checkout-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.checkout-item-info {
    flex: 1;
    min-width: 0;
}

.checkout-item-name {
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.checkout-item-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.checkout-item-price {
    font-weight: 600;
    color: var(--accent);
}

.checkout-totals {
    background: var(--bg-dark);
    padding: 1rem;
    border-radius: 8px;
}

.checkout-total-row {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
    font-size: 0.9rem;
}

.checkout-discount-row {
    color: var(--success);
}

.checkout-grand-total {
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.checkout-grand-total span:last-child {
    color: var(--accent);
}

.checkout-coupon-row {
    margin-top: 0.75rem;
}

.checkout-coupon-row label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.checkout-coupon-controls {
    display: flex;
    gap: 0.5rem;
}

.checkout-coupon-controls input {
    flex: 1;
}

.checkout-coupon-note {
    margin-top: 0.35rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.checkout-link-btn {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: 0.75rem;
    font-family: inherit;
    text-decoration: underline;
}

/* ── Checkout Address Cards ── */
.checkout-address-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.checkout-addr-card {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.7rem 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}
.checkout-addr-card:hover {
    border-color: var(--accent);
}
.checkout-addr-card.selected {
    border-color: var(--accent);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 1px var(--accent);
}

.addr-card-radio {
    padding-top: 0.15rem;
    flex-shrink: 0;
}
.radio-dot {
    display: inline-block;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--border);
    transition: all 0.2s;
}
.radio-dot.active {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: inset 0 0 0 3px var(--bg-primary);
}

.addr-card-info { flex: 1; min-width: 0; }
.addr-card-name {
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
}
.addr-default-tag {
    font-size: 0.65rem;
    background: var(--accent);
    color: white;
    padding: 0.05rem 0.35rem;
    border-radius: 3px;
    font-weight: 500;
    vertical-align: middle;
    margin-left: 0.3rem;
}
.addr-card-line {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.45;
}

.checkout-no-address {
    text-align: center;
    padding: 1rem;
    background: var(--bg-primary);
    border: 1px dashed var(--border);
    border-radius: 8px;
    margin-bottom: 0.75rem;
}
.checkout-no-address p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.btn-add-address {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.45rem 1rem;
    background: transparent;
    border: 1px solid var(--accent);
    border-radius: 6px;
    color: var(--accent);
    font-family: inherit;
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 0.25rem;
}
.btn-add-address:hover {
    background: var(--accent);
    color: white;
}

#checkout-billing-section {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}
.billing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}
.billing-header h3 {
    margin: 0;
}
.same-as-shipping {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: var(--text-muted);
    cursor: pointer;
}
.same-as-shipping input[type="checkbox"] {
    width: 15px;
    height: 15px;
    accent-color: var(--accent);
}
.checkout-same-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    padding: 0.5rem 0;
}
#checkout-billing-section h3 {
    font-size: 1rem;
    padding-bottom: 0;
    border-bottom: none;
}

/* ── Checkout Actions ── */
.checkout-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.checkout-actions .btn {
    min-width: 120px;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.checkout-actions .btn-primary {
    background: var(--accent);
    border: none;
    color: white;
}
.checkout-actions .btn-primary:hover:not(:disabled) {
    filter: brightness(1.1);
}
.checkout-actions .btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.checkout-actions .btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.checkout-actions .btn-outline:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

/* ── Status bar (replaces alert toasts) ── */
.checkout-status-bar {
    margin-top: 1rem;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    text-align: center;
}
.checkout-status-bar.hidden { display: none; }
.checkout-status-bar.error {
    background: rgba(233, 69, 96, 0.1);
    color: var(--error, #e94560);
    border: 1px solid var(--error, #e94560);
}
.checkout-status-bar.success {
    background: rgba(46, 204, 113, 0.1);
    color: var(--success, #2ecc71);
    border: 1px solid var(--success, #2ecc71);
}

/* ── Success toast (non-blocking) ── */
.checkout-success-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-secondary);
    border: 1px solid var(--success, #2ecc71);
    color: var(--text);
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    font-size: 0.9rem;
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    z-index: 2000;
    opacity: 0;
    transition: all 0.4s ease;
    pointer-events: none;
}
.checkout-success-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.toast-check {
    color: var(--success, #2ecc71);
    font-weight: bold;
    margin-right: 0.4rem;
}


/* ===== Order History ===== */
.order-history-item {
    background: var(--bg-dark);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.order-history-item:hover {
    border-color: var(--accent);
}

.order-history-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.4rem;
}

.order-history-id {
    font-weight: 700;
    color: var(--accent);
}

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

.order-history-status {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.order-history-status.pending {
    background: rgba(255, 201, 60, 0.2);
    color: var(--warning);
}

.order-history-status.confirmed {
    background: rgba(107, 159, 255, 0.2);
    color: #6b9fff;
}

.order-history-status.printing {
    background: rgba(78, 204, 163, 0.2);
    color: var(--success);
}

.order-history-status.completed {
    background: rgba(78, 204, 163, 0.4);
    color: var(--success);
}

.order-history-status.shipped {
    background: var(--success);
    color: var(--bg-dark);
}

.order-history-status.cancelled {
    background: rgba(233, 69, 96, 0.2);
    color: var(--accent);
}

.order-history-total {
    font-weight: 700;
    color: var(--success);
}

.order-history-tracking {
    margin-top: 0.5rem;
    padding: 0.4rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    font-size: 0.75rem;
}

.order-history-tracking a {
    color: var(--success);
    text-decoration: none;
}

.order-history-tracking a:hover {
    text-decoration: underline;
}

/* ===== Feedback Button & Modal ===== */
.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-icon:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.1);
}

.feedback-modal-content {
    max-width: 520px;
    width: 95%;
}

.terms-modal-content {
    max-width: 860px;
    width: min(95vw, 860px);
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--border);
}

.terms-modal-content h2 {
    margin: 0 0 0.35rem;
    color: var(--text);
    font-size: 1.4rem;
}

.terms-updated {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.terms-section {
    margin-bottom: 1rem;
}

.terms-section h3 {
    font-size: 0.92rem;
    margin-bottom: 0.35rem;
    color: var(--accent);
}

.terms-section p {
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.55;
    margin-bottom: 0.5rem;
}

.terms-section ul {
    margin: 0.4rem 0 0.6rem 1.15rem;
}

.terms-section li {
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.5;
    margin-bottom: 0.3rem;
}

.feedback-modal-content h2 {
    margin: 0 0 0.25rem 0;
    color: var(--text);
    font-size: 1.4rem;
}

.feedback-subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0 0 1.25rem 0;
}

.feedback-modal-content .form-group {
    margin-bottom: 1rem;
}

.feedback-modal-content label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 500;
    color: var(--text);
    font-size: 0.85rem;
}

.feedback-modal-content input[type="text"],
.feedback-modal-content textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.feedback-modal-content input[type="text"]:focus,
.feedback-modal-content textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.feedback-modal-content .form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.feedback-message {
    padding: 0.6rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

.feedback-message.success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.feedback-message.error {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.feedback-message.hidden {
    display: none;
}

/* ── SEO Footer (minimal) ── */
.seo-footer {
    padding: 1rem 1.5rem 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.terms-link-btn {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    text-decoration: underline;
    padding: 0;
}

.terms-link-btn:hover {
    color: var(--accent-hover);
}

.seo-copyright {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.5;
}

/* ── Viewer Landing Content ── */
.viewer-landing-content {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--text);
    font-size: 0.85rem;
    line-height: 1.55;
}

.landing-inner {
    max-width: 720px;
}

.landing-headline {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

.landing-lead {
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

.landing-lead strong {
    color: var(--accent);
    font-weight: 600;
}

.landing-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 1.5rem;
    margin-bottom: 0.75rem;
}

.landing-col h3 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.landing-col p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ── Learn More (expandable) ── */
.learn-more {
    margin-top: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.learn-more-toggle {
    display: block;
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: background 0.2s;
}

.learn-more-toggle::-webkit-details-marker { display: none; }

.learn-more-toggle::before {
    content: '▸ ';
    display: inline;
    transition: transform 0.2s;
}

.learn-more[open] .learn-more-toggle::before {
    content: '▾ ';
}

.learn-more-toggle:hover {
    background: var(--bg-tertiary);
}

.learn-more-body {
    padding: 0.75rem 1rem 1rem;
    border-top: 1px solid var(--border);
}

.learn-section {
    margin-bottom: 1rem;
}

.learn-section:last-child {
    margin-bottom: 0;
}

.learn-section h3 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.learn-section > p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.55;
}

.learn-section strong {
    color: var(--text);
}

.material-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem 1.25rem;
    margin-top: 0.5rem;
}

.material-highlight strong {
    font-size: 0.78rem;
    color: var(--accent);
    display: block;
    margin-bottom: 0.15rem;
}

.material-highlight p {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.45;
    margin: 0;
}

.landing-footer-text {
    margin-top: 0.75rem;
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.5;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
}

.contact-email {
    color: var(--accent);
    text-decoration: none;
}

.contact-email:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .landing-cols,
    .material-grid {
        grid-template-columns: 1fr;
    }
}

/* Header responsiveness */
@media (max-width: 900px) {
    .header-content {
        gap: 1rem;
        align-items: flex-start;
    }

    .header-right {
        gap: 0.5rem;
    }
}

@media (max-width: 700px) {
    .container {
        padding: 1rem 0.75rem;
    }

    h1 {
        font-size: 1.7rem;
        letter-spacing: 0.04em;
    }

    .subtitle {
        display: none;
    }

    .header-content {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .header-right {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .header-primary-mobile {
        margin-left: auto;
        gap: 0.5rem;
    }

    .header-primary-mobile .vue-cart-btn {
        padding: 0.45rem 0.55rem;
        gap: 0.35rem;
    }

    .header-primary-mobile .vue-cart-label {
        display: none;
    }

    .mobile-menu-toggle {
        display: inline-flex !important;
    }

    .header-menu-panel {
        display: none;
        width: 100%;
        padding: 0.6rem;
        border: 1px solid var(--border);
        border-radius: 8px;
        background: var(--bg-secondary);
        justify-content: flex-start;
        align-items: center;
        gap: 0.5rem;
    }

    .header-menu-panel.open {
        display: flex;
        flex-wrap: wrap;
    }

    .header-menu-panel #feedback-btn {
        order: 1;
    }

    .header-menu-panel #vue-billing-settings {
        order: 2;
    }

    .header-menu-panel #vue-orders-drawer {
        order: 3;
    }

    .header-menu-panel #feedback-btn,
    .header-menu-panel #vue-billing-settings .vue-settings-btn,
    .header-menu-panel #vue-orders-drawer .vue-orders-btn {
        width: 40px;
        height: 40px;
        padding: 0;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .header-menu-panel #vue-orders-drawer .vue-orders-btn {
        border-radius: 8px;
    }

    .header-menu-panel .vue-orders-label,
    .header-menu-panel .vue-orders-badge {
        display: none;
    }

    .header-menu-panel #auth-section {
        order: 4;
        width: 100%;
        margin-top: 0.2rem;
        padding-top: 0.45rem;
        border-top: 1px solid var(--border);
        justify-content: flex-end;
    }

    .header-menu-panel.menu-auth-only #auth-section {
        margin-top: 0;
        padding-top: 0;
        border-top: none;
    }

    .header-menu-panel #auth-section .user-info {
        width: 100%;
        justify-content: flex-end;
        background: transparent;
        padding: 0;
        gap: 0.5rem;
    }

    .header-menu-panel #auth-section .btn-secondary,
    .header-menu-panel #auth-section .btn-primary,
    .header-menu-panel #auth-section .btn-logout {
        min-width: 92px;
        text-align: center;
    }

    .btn-secondary,
    .btn-primary,
    .btn-logout {
        padding: 0.45rem 0.65rem;
        font-size: 0.75rem;
    }

    .user-email {
        display: none;
    }

    .vue-orders-btn {
        padding: 0.45rem 0.55rem;
        gap: 0.35rem;
    }
}

@media (min-width: 701px) {
    .header-primary-mobile .mobile-menu-toggle {
        display: none !important;
    }

    /* Flatten wrappers so desktop icon row aligns uniformly. */
    .header-primary-mobile,
    .header-menu-panel {
        display: contents;
    }

    .header-right {
        gap: 0.5rem;
    }

    #auth-section {
        margin-left: 0.6rem;
    }
}