/* ==========================================
   Camera Control — Wizard Layout
   Full-viewport steps · Strict B&W
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,300;1,9..40,400&family=JetBrains+Mono:wght@300;400;500&display=swap');

/* ==========================================
   Light Mode
   ========================================== */

:root {
    --bg: #ffffff;
    --bg-subtle: #f5f5f6;
    --bg-viewport: #f0f0f2;

    --border: #e0e0e2;
    --border-strong: #c0c0c4;
    --border-focus: #000000;

    --text: #000000;
    --text-secondary: #555555;
    --text-muted: #999999;
    --text-label: #333333;

    --fg: #000000;
    --fg-inverse: #ffffff;

    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    --radius-sm: 3px;
    --radius-md: 4px;

    --transition-fast: 120ms ease;
    --transition-normal: 200ms ease;
    --transition-theme: 300ms ease;

    --header-h: 54px;

    --viewport-bg: #f0f0f2;
    --viewport-info-bg: rgba(255, 255, 255, 0.5);
    --viewport-info-color: #555555;
}

/* ==========================================
   Dark Mode
   ========================================== */

[data-theme="dark"] {
    --bg: #0a0a0a;
    --bg-subtle: #111111;
    --bg-viewport: #0e0e0e;

    --border: #222222;
    --border-strong: #333333;
    --border-focus: #ffffff;

    --text: #ffffff;
    --text-secondary: #aaaaaa;
    --text-muted: #666666;
    --text-label: #cccccc;

    --fg: #ffffff;
    --fg-inverse: #000000;

    --viewport-bg: #0e0e0e;
    --viewport-info-bg: rgba(0, 0, 0, 0.5);
    --viewport-info-color: #888888;
}

/* ==========================================
   Reset
   ========================================== */

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

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    overflow: hidden;
    height: 100vh;
    transition: background var(--transition-theme), color var(--transition-theme);
}

::selection {
    background: var(--text);
    color: var(--bg);
}

::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-strong);
}

/* ==========================================
   Header
   ========================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-h);
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

[data-theme="dark"] .header {
    background: rgba(10, 10, 10, 0.95);
}

.header-content {
    max-width: 100%;
    height: 100%;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-img {
    height: 24px;
    width: auto;
    object-fit: contain;
}

/* Light mode: show black logo, hide white */
.logo-img-light {
    display: block;
}

.logo-img-dark {
    display: none;
}

/* Dark mode: show white logo, hide black */
[data-theme="dark"] .logo-img-light {
    display: none;
}

[data-theme="dark"] .logo-img-dark {
    display: block;
}

.logo h1 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--text);
    background: none;
    -webkit-text-fill-color: var(--text);
}

.subtitle {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Step Indicator */
.step-indicator {
    display: flex;
    align-items: center;
    gap: 0;
}

.step-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-dot:hover {
    border-color: var(--border-strong);
    color: var(--text);
}

.step-dot.active {
    background: var(--fg);
    border-color: var(--fg);
    color: var(--fg-inverse);
}

.step-dot.completed {
    border-color: var(--fg);
    color: var(--fg);
}

.step-line {
    width: 20px;
    height: 1px;
    background: var(--border);
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.6rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

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

.theme-toggle svg {
    width: 12px;
    height: 12px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
}

/* ==========================================
   Wizard — Full-viewport steps
   ========================================== */

.wizard {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
}

.step {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    opacity: 0;
    pointer-events: none;
    transform: translateX(40px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.step.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
}

.step.exit-left {
    opacity: 0;
    transform: translateX(-40px);
}

.step.exit-right {
    opacity: 0;
    transform: translateX(40px);
}

.step-content {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 28px 32px;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* Step Title */
.step-title {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-shrink: 0;
}

.step-num {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.06em;
}

.step-title h2 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.step-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 1px;
}

/* Step Body */
.step-body {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

/* Step Navigation */
.step-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    margin-top: 16px;
}

.btn-next {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--fg);
    border: 1px solid var(--fg);
    border-radius: var(--radius-sm);
    color: var(--fg-inverse);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.btn-next:hover:not(:disabled) {
    opacity: 0.85;
}

.btn-next:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.btn-next svg {
    stroke: currentColor;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 400;
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.btn-back:hover {
    border-color: var(--border-strong);
    color: var(--text);
}

.btn-back svg {
    stroke: currentColor;
}

/* ==========================================
   Step 1: Upload + Config
   ========================================== */

.step-body-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
    overflow: visible;
}

.upload-zone {
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 8px;
    cursor: pointer;
    transition: border-color var(--transition-fast);
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--border-focus);
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-align: center;
}

.source-preview {
    max-width: 100%;
    max-height: 320px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.btn-clear {
    position: absolute;
    top: 8px;
    right: 8px;
}

/* Image Analysis Status */
.analysis-status {
    position: absolute;
    bottom: 8px;
    left: 8px;
    right: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    padding: 6px 10px;
    background: var(--bg-subtle);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    animation: fadeInUp 0.3s ease;
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

.analysis-status.done {
    color: var(--text-secondary);
    border-color: var(--border-strong);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

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

.analysis-spinner {
    width: 12px;
    height: 12px;
    border: 1.5px solid var(--border-strong);
    border-top-color: var(--text);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

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

.config-panel {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* ==========================================
   Step 2: Camera Controls + Preview
   ========================================== */

.step-body-camera {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
    overflow: hidden;
    height: 100%;
}

.camera-controls {
    overflow-y: auto;
    padding-right: 4px;
}

.camera-preview {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow: hidden;
    height: 100%;
}

.viewport-container {
    position: relative;
    background: var(--viewport-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    flex: 1;
    min-height: 0;
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

.viewport-container canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

.viewport-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 14px;
    pointer-events: none;
}

.viewport-info {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--viewport-info-color);
    background: var(--viewport-info-bg);
    display: inline-block;
    padding: 3px 8px;
    border-radius: 3px;
}

.diagram-container {
    background: var(--viewport-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px;
    flex: 1;
    min-height: 0;
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

.diagram-container canvas {
    width: auto;
    height: 100%;
    max-width: 100%;
    object-fit: contain;
}

.diagram-actions {
    display: flex;
    justify-content: flex-end;
    width: 100%;
    padding-top: 4px;
    flex-shrink: 0;
}

/* ==========================================
   Generation Mode Toggle (Freeze / Pose)
   ========================================== */

.mode-toggle {
    display: flex;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.mode-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.mode-btn:not(:last-child) {
    border-right: 1px solid var(--border);
}

.mode-btn:hover:not(.active) {
    background: var(--bg-subtle);
    color: var(--text);
}

.mode-btn.active {
    background: var(--fg);
    color: var(--fg-inverse);
}

.mode-btn svg {
    stroke: currentColor;
    flex-shrink: 0;
}

.mode-desc {
    font-family: var(--font-body);
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 8px;
    line-height: 1.4;
}

.pose-input {
    margin-top: 10px;
}

.pose-input textarea {
    font-size: 0.78rem;
}

/* Refine Pose (Step 4) */
.refine-pose-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.refine-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

.refine-pose-section textarea {
    font-size: 0.78rem;
}

.btn-accent {
    background: var(--fg);
    color: var(--fg-inverse);
    border-color: var(--fg);
}

.btn-accent:hover {
    opacity: 0.85;
}

.refine-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
}

/* ==========================================
   Step 3: Generate
   ========================================== */

.generate-bar {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 16px 0;
    border-top: 1px solid var(--border);
}

.generate-bar .attempts-log {
    flex-basis: 100%;
    order: 99;
}

.generate-bar-settings {
    display: flex;
    align-items: center;
    gap: 24px;
    flex: 1;
}

.control-inline {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-inline .control-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.control-inline select {
    width: auto;
    min-width: 140px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

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

/* ==========================================
   Step 4: Result
   ========================================== */

.step-body-result {
    display: grid;
    grid-template-columns: 1fr 220px;
    gap: 24px;
    align-items: start;
    overflow: visible;
}

.result-container {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--bg-subtle);
    height: 100%;
    min-height: 300px;
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

.result-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.result-sidebar {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.result-meta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.upscale-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    padding: 8px 0;
}

/* Attempts validation log */
.attempts-log {
    margin-top: 12px;
    border-top: 1px solid var(--border);
    padding-top: 10px;
}

.attempts-header {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.attempts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.attempt-card {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

.attempt-card.best {
    border-color: var(--text-muted);
}

.attempt-card:hover {
    border-color: var(--text-muted);
    background: var(--bg-subtle);
}

.attempt-use-btn {
    margin-left: auto;
    font-size: 0.6rem;
    padding: 2px 8px;
    opacity: 0;
    transition: opacity 0.15s;
}

.attempt-card:hover .attempt-use-btn {
    opacity: 1;
}

.attempt-thumb {
    width: 56px;
    height: 56px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

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

.attempt-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.attempt-num {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
}

.attempt-score {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 700;
}

.attempt-score.high {
    color: #22c55e;
}

.attempt-score.mid {
    color: #eab308;
}

.attempt-score.low {
    color: #ef4444;
}

.attempt-bar {
    width: 100%;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    margin-bottom: 4px;
    overflow: hidden;
}

.attempt-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.attempt-reason {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--text-muted);
    line-height: 1.3;
}

/* ==========================================
   Review Strip (Step 3)
   ========================================== */

.review-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.review-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 10px;
    opacity: 0;
    animation: reviewFadeIn 0.4s ease forwards;
    transition: background var(--transition-theme), border-color var(--transition-theme);
    min-width: 0;
    flex: 1;
    max-width: 240px;
}

.review-card-prompt {
    position: relative;
}

.review-card-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.input-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    user-select: none;
}

.input-toggle input[type="checkbox"] {
    width: 12px;
    height: 12px;
    accent-color: var(--text-muted);
    cursor: pointer;
}

.review-card-content {
    position: relative;
}

.btn-gen-depth {
    font-size: 0.65rem;
    padding: 6px 16px;
    margin: auto;
}

.review-card-content {
    display: flex;
    align-items: center;
    justify-content: center;
}

.review-img {
    width: 100%;
    max-height: 180px;
    object-fit: contain;
    border-radius: 4px;
    background: var(--bg);
}

.review-prompt-text {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    line-height: 1.5;
    color: var(--text-primary);
    max-height: 180px;
    overflow-y: auto;
    word-break: break-word;
    padding-right: 4px;
}

.review-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.review-card-prompt:hover .review-copy-btn {
    opacity: 1;
}

.review-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
    opacity: 0;
    animation: reviewFadeIn 0.3s ease forwards;
    transition: color var(--transition-theme);
}

@keyframes reviewFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* ==========================================
   Lightbox
   ========================================== */

.lightbox-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    cursor: zoom-out;
    align-items: center;
    justify-content: center;
}

.lightbox-overlay.active {
    display: flex;
    animation: lightboxIn 0.2s ease;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
}

@keyframes lightboxIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.review-card .review-card-content {
    cursor: zoom-in;
}

/* ==========================================
   Panels & Controls
   ========================================== */

.panel {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    transition: border-color var(--transition-theme);
}

.panel:first-child {
    padding-top: 0;
}

.panel:last-child {
    border-bottom: none;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.panel-header h3 {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.panel-output {
    border-bottom: 1px solid var(--border);
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
}

.preset-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 8px 4px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.58rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    line-height: 1.3;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.preset-btn:hover {
    border-color: var(--border-strong);
    color: var(--text);
}

.preset-btn.active {
    background: var(--fg);
    border-color: var(--fg);
    color: var(--fg-inverse);
}

/* Form Controls */
.control-group {
    margin-bottom: 14px;
}

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

.control-group label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 5px;
}

.control-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-label);
}

.control-value {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 1px;
    background: var(--border-strong);
    border: none;
    outline: none;
    cursor: pointer;
    margin: 8px 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--fg);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--fg);
    border: none;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 2px;
    font-family: var(--font-mono);
    font-size: 0.58rem;
    color: var(--text-muted);
}

select {
    width: 100%;
    padding: 7px 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.78rem;
    cursor: pointer;
    outline: none;
    transition: border-color var(--transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
}

select:hover {
    border-color: var(--border-strong);
}

select:focus {
    border-color: var(--border-focus);
}

select option {
    background: var(--bg);
    color: var(--text);
}

textarea {
    width: 100%;
    padding: 7px 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.78rem;
    outline: none;
    resize: vertical;
    transition: border-color var(--transition-fast);
    min-height: 48px;
}

textarea:hover {
    border-color: var(--border-strong);
}

textarea:focus {
    border-color: var(--border-focus);
}

textarea::placeholder {
    color: var(--text-muted);
    font-style: italic;
    font-weight: 300;
}

.input-field {
    width: 100%;
    padding: 7px 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.input-field:hover {
    border-color: var(--border-strong);
}

.input-field:focus {
    border-color: var(--border-focus);
}

.input-field::placeholder {
    color: var(--text-muted);
}

/* ==========================================
   Buttons
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.btn:hover {
    border-color: var(--border-strong);
    color: var(--text);
}

.btn-primary {
    background: var(--fg);
    border-color: var(--fg);
    color: var(--fg-inverse);
}

.btn-primary:hover {
    opacity: 0.85;
}

.btn-sm {
    padding: 4px 8px;
    font-size: 0.6rem;
}

.btn-lg {
    padding: 10px 18px;
    font-size: 0.7rem;
    justify-content: center;
    width: 100%;
}

.btn-generate {
    padding: 10px 28px;
    background: var(--fg);
    border: 1px solid var(--fg);
    border-radius: var(--radius-sm);
    color: var(--fg-inverse);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.btn-generate:hover:not(:disabled) {
    opacity: 0.85;
}

.btn-generate:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.resolution-toggle {
    display: flex;
    gap: 3px;
}

.res-btn {
    padding: 5px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.res-btn:hover {
    border-color: var(--border-strong);
    color: var(--text);
}

.res-btn.active {
    background: var(--fg);
    border-color: var(--fg);
    color: var(--fg-inverse);
}

.generate-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
}

.status-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top: 2px solid var(--fg);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Prompt Output */
.prompt-output {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    line-height: 1.8;
    color: var(--text);
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    white-space: pre-wrap;
    word-break: break-word;
    min-height: 60px;
    max-height: 160px;
    overflow-y: auto;
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

.prompt-output:hover {
    border-color: var(--border-strong);
}

.prompt-output-sm {
    min-height: 40px;
    max-height: 100px;
    font-size: 0.68rem;
}

.prompt-placeholder {
    color: var(--text-muted);
    font-style: italic;
    font-weight: 300;
}

/* ==========================================
   Responsive
   ========================================== */

@media (max-width: 1000px) {
    .step-body-split {
        grid-template-columns: 1fr;
    }

    .step-body-camera {
        grid-template-columns: 1fr;
    }

    .step-body-result {
        grid-template-columns: 1fr;
    }

    .generate-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .generate-bar-settings {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

@media (max-width: 600px) {
    .header-content {
        padding: 0 16px;
    }

    .step-content {
        padding: 20px 16px;
    }

    .presets-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .step-indicator {
        display: none;
    }
}