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

:root {
    --bg: #f5f0e8;
    --surface: #ffffff;
    --surface-raised: #faf8f5;
    --text: #1a1a1a;
    --text-secondary: #6b6560;
    --text-tertiary: #9e9690;
    --accent: #c8872e;
    --accent-hover: #b8792a;
    --accent-soft: rgba(200,135,46,0.08);
    --accent-soft-strong: rgba(200,135,46,0.15);
    --success: #2d6a3f;
    --success-soft: #e8f5e9;
    --error: #c0392b;
    --error-soft: #fff2f0;
    --border: rgba(26,26,26,0.08);
    --border-strong: rgba(26,26,26,0.15);
    --shadow-sm: 0 1px 2px rgba(26,26,26,0.04);
    --shadow-md: 0 4px 16px rgba(26,26,26,0.08);
    --shadow-lg: 0 8px 32px rgba(26,26,26,0.10);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --font-serif: 'IBM Plex Serif', Georgia, 'Times New Roman', serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
    --bg: #1c1a17;
    --surface: #2a2825;
    --surface-raised: #33302c;
    --text: #e8e4dc;
    --text-secondary: #a89f96;
    --text-tertiary: #7a7268;
    --accent: #d4a04a;
    --accent-hover: #e0b060;
    --accent-soft: rgba(212,160,74,0.10);
    --accent-soft-strong: rgba(212,160,74,0.18);
    --success: #4caf50;
    --success-soft: #1b3320;
    --error: #ef5350;
    --error-soft: #3d1c18;
    --border: rgba(232,228,220,0.08);
    --border-strong: rgba(232,228,220,0.15);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
}

body {
    font-family: var(--font-serif);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background var(--transition-base), color var(--transition-base);
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ── Animations ──────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes cardIn {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(120%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(120%); }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-soft-strong); }
    50% { box-shadow: 0 0 0 6px var(--accent-soft-strong); }
}

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

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ── Header ───────────────────────────────── */
.app-header {
    background: rgba(255,255,255,0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
    padding: 0 24px;
    height: 56px;
    display: flex; align-items: center;
    transition: background var(--transition-base), border-color var(--transition-base);
}

[data-theme="dark"] .app-header {
    background: rgba(28,26,23,0.85);
}

.app-header-inner {
    max-width: 1200px; width: 100%; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
}

.app-logo {
    display: flex; align-items: center; gap: 10px;
}

.app-logo-icon {
    flex-shrink: 0;
    color: var(--accent);
    transition: transform var(--transition-fast);
}

.app-logo-icon:hover {
    transform: rotate(-5deg) scale(1.05);
}

.app-logo-text {
    display: flex; flex-direction: column;
}

.app-logo-name {
    font-family: var(--font-serif);
    font-size: 16px; font-weight: 600;
    color: var(--text);
    line-height: 1.2;
    letter-spacing: -0.2px;
}

.app-logo-sub {
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 500;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.header-actions {
    display: flex; align-items: center; gap: 16px;
}

.shortcut-hint {
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 500;
    color: var(--text-tertiary);
    display: flex; align-items: center; gap: 4px;
    letter-spacing: 0.3px;
}

.shortcut-hint kbd {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 20px; height: 18px;
    padding: 0 4px;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 9px; font-weight: 600;
    color: var(--text-secondary);
}

.theme-toggle {
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

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

.theme-toggle svg {
    position: absolute;
    transition: all var(--transition-fast);
}

.theme-toggle .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
.theme-toggle .icon-sun { opacity: 1; transform: rotate(0) scale(1); }

[data-theme="dark"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="dark"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(90deg) scale(0.5); }

/* ── Main ─────────────────────────────────── */
.app-main {
    max-width: 1200px; margin: 0 auto;
    padding: 32px 24px 60px;
    display: flex; flex-direction: column; gap: 24px;
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ── Grid ─────────────────────────────────── */
.input-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.text-panel.full-width {
    grid-column: 1 / -1;
}

.panel {
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.panel:hover {
    box-shadow: var(--shadow-lg);
}

.panel-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px 8px;
    border-bottom: 1px solid var(--border);
}

.panel-label {
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 600;
    color: var(--accent);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.panel-count {
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 500;
    color: var(--text-tertiary);
}

/* ── Content Area ────────────────────────── */
.content-area {
    width: 100%;
    min-height: 200px;
    max-height: 400px;
    padding: 16px 20px;
    font-family: var(--font-serif);
    font-size: 15px;
    line-height: 1.7;
    color: var(--text);
    background: var(--surface-raised);
    outline: none;
    overflow-y: auto;
    border-top: 2px solid transparent;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    white-space: pre-wrap;
    word-break: break-word;
}

.content-area:focus {
    border-top-color: var(--accent);
    background: var(--surface);
}

.content-area:empty::before {
    content: attr(data-placeholder);
    color: var(--text-tertiary);
    pointer-events: none;
    font-style: italic;
}

.content-area img {
    display: inline-block;
    max-height: 100px;
    max-width: 180px;
    width: auto; height: auto;
    border-radius: 8px;
    border: 1px solid var(--border);
    vertical-align: middle;
    margin: 4px 6px;
}

/* ── Image Board ─────────────────────────── */
.image-board {
    display: flex; flex-wrap: wrap; gap: 8px;
    padding: 8px 20px 16px;
    min-height: 40px;
}

/* ── Draggable inline images ──────────────────── */
.content-area img {
    cursor: grab;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    user-select: none;
}

.content-area img.dragging {
    opacity: 0.4;
    transform: scale(0.95);
    cursor: grabbing;
}

/* ── Toolbar ─────────────────────────────── */
.toolbar {
    display: flex; align-items: center;
    justify-content: space-between;
    padding: 12px 20px 16px;
}

.char-count {
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 500;
    color: var(--text-tertiary);
}

/* ── Ghost Button ────────────────────────── */
.btn-ghost {
    background: none; border: none;
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 500;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all var(--transition-fast);
    display: inline-flex; align-items: center; gap: 4px;
}

.btn-ghost:hover {
    color: var(--error);
    background: var(--error-soft);
}

.btn-sm { font-size: 10px; padding: 3px 6px; }

/* ── Collapsible ─────────────────────────── */
.collapsible {
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.collapsible-content summary {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px;
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    list-style: none;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: background var(--transition-fast);
}

.collapsible-content summary::-webkit-details-marker { display: none; }
.collapsible-content summary:hover { background: var(--surface-raised); }

.collapsible-content .chevron {
    transition: transform var(--transition-base);
    color: var(--text-tertiary);
}

.collapsible-content[open] .chevron { transform: rotate(180deg); }

.collapsible-body {
    padding: 0 20px 20px;
}

.advanced-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.advanced-item {
    display: flex; flex-direction: column; gap: 8px;
}

.advanced-label {
    font-family: var(--font-mono);
    font-size: 9px; font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.file-drop {
    border: 1.5px dashed var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex; align-items: center; justify-content: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-drop:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent);
}

.file-drop svg { flex-shrink: 0; }
.file-drop input[type="file"] { display: none; }

.advanced-preview {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 14px;
    background: var(--surface-raised);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.preview-badge {
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 500;
    color: var(--text-secondary);
}

/* ── Generate Button ─────────────────────── */
.generate-wrapper {
    margin-top: 4px;
}

.btn-generate {
    width: 100%;
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 16px 24px;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 14px; font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    border: none; border-radius: var(--radius-md);
    cursor: pointer;
    box-shadow: 0 4px 16px var(--accent-soft-strong);
    transition: all var(--transition-fast);
}

.btn-generate:hover:not(:disabled) {
    background: var(--accent-hover);
    box-shadow: 0 6px 24px var(--accent-soft-strong);
    transform: translateY(-1px);
}

.btn-generate:active:not(:disabled) {
    transform: scale(0.98);
}

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

.btn-generate svg { transition: transform var(--transition-fast); }
.btn-generate:hover:not(:disabled) svg { transform: scale(1.1); }

/* ── Progress Pipeline ───────────────────── */
.progress-card {
    padding: 32px 28px 28px;
    border-radius: var(--radius-md);
}

.pipeline-stages {
    display: flex;
    align-items: flex-start;
    gap: 0;
    position: relative;
}

.pipeline-stage {
    display: flex;
    flex-direction: column;
    flex: 1;
    position: relative;
    z-index: 1;
}

.stage-number {
    font-family: var(--font-mono);
    font-size: 20px; font-weight: 700;
    color: var(--text-tertiary);
    margin-bottom: 12px;
    transition: all var(--transition-base);
}

.pipeline-stage.stage-active .stage-number {
    color: var(--accent);
    animation: pulseGlow 2s ease-in-out infinite;
}

.pipeline-stage.stage-done .stage-number {
    color: var(--success);
}

.stage-content {
    display: flex; flex-direction: column; gap: 2px;
}

.stage-label {
    font-family: var(--font-serif);
    font-size: 14px; font-weight: 600;
    color: var(--text-tertiary);
    transition: color var(--transition-base);
}

.pipeline-stage.stage-active .stage-label { color: var(--text); }
.pipeline-stage.stage-done .stage-label { color: var(--success); }

.stage-detail {
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 500;
    color: var(--text-tertiary);
    transition: color var(--transition-base);
}

.stage-status {
    margin-top: 8px;
    width: 20px; height: 20px;
    border-radius: 50%;
    border: 2px solid var(--border);
    transition: all var(--transition-base);
}

.pipeline-stage.stage-active .stage-status {
    border-color: var(--accent);
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

.pipeline-stage.stage-done .stage-status {
    border-color: var(--success);
    background: var(--success);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 12px;
}

.pipeline-connector {
    flex: 0 0 40px;
    display: flex; align-items: center;
    padding: 0 8px;
    margin-top: 12px;
}

.connector-line {
    height: 2px;
    width: 100%;
    background: var(--border);
    position: relative;
    transition: background var(--transition-base);
}

.pipeline-connector.done .connector-line {
    background: var(--success);
}

.progress-cancel {
    text-align: center;
    margin-top: 24px;
}

/* ── Image Analysis Card ───────────────────── */
.image-analysis-card {
    padding: 0;
    overflow: hidden;
}

.analysis-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px;
    cursor: pointer;
    user-select: none;
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-fast);
}

.analysis-header:hover { background: var(--surface-raised); }

.analysis-title {
    display: flex; align-items: center; gap: 8px;
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.analysis-chevron {
    transition: transform var(--transition-base);
    color: var(--text-tertiary);
}

.analysis-chevron.rotated { transform: rotate(180deg); }

.analysis-body {
    max-height: 0; overflow: hidden;
    transition: max-height 0.3s ease;
}

.analysis-body.open { max-height: 1000px; }

.analysis-scroll {
    padding: 16px 20px;
    display: flex; flex-direction: column; gap: 12px;
    max-height: 500px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--text-tertiary) transparent;
}

.analysis-scroll::-webkit-scrollbar { width: 4px; }
.analysis-scroll::-webkit-scrollbar-track { background: transparent; }
.analysis-scroll::-webkit-scrollbar-thumb { background: var(--text-tertiary); border-radius: 2px; }

.analysis-empty {
    text-align: center;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 16px;
}

.analysis-item {
    display: flex; gap: 14px;
    padding: 12px;
    border-radius: var(--radius-sm);
    background: var(--surface-raised);
    border: 1px solid var(--border);
    animation: cardIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.analysis-thumb-wrap {
    position: relative;
    flex-shrink: 0;
}

.analysis-thumb {
    width: 64px; height: 64px;
    border-radius: 8px;
    border: 2px solid var(--accent);
    object-fit: cover;
    display: block;
}

.analysis-thumb-no-img {
    width: 64px; height: 64px;
    border-radius: 8px;
    border: 2px dashed var(--border-strong);
    display: flex; align-items: center; justify-content: center;
    background: var(--surface-raised);
}

.analysis-badge {
    position: absolute; top: -6px; left: -6px;
    width: 20px; height: 20px;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 9px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--surface);
}

.analysis-text {
    flex: 1; min-width: 0;
}

.analysis-text-title {
    font-family: var(--font-mono);
    font-size: 10px; font-weight: 600;
    color: var(--accent);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.analysis-text-desc {
    font-family: var(--font-serif);
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── Result Card ─────────────────────────── */
.result-card {
    padding: 24px 28px;
}

.result-header {
    display: flex; align-items: center; gap: 16px;
    flex-wrap: wrap;
}

.result-icon {
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--success-soft);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

.result-icon svg { display: block; }

.result-info { flex: 1; min-width: 200px; }

.result-title {
    font-family: var(--font-serif);
    font-size: 16px; font-weight: 600;
    color: var(--text);
    margin-bottom: 2px;
}

.result-meta {
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 500;
    color: var(--text-secondary);
}

.result-card .btn-download {
    width: 100%;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    margin-top: 16px;
    padding: 12px 24px;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 12px; font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: none; border-radius: var(--radius-sm);
    cursor: pointer;
    box-shadow: 0 2px 10px var(--accent-soft-strong);
    transition: all var(--transition-fast);
}

.result-card .btn-download:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--accent-soft-strong);
}

.result-card .btn-download:active {
    transform: scale(0.97);
}

/* ── Error Card ──────────────────────────── */
.error-card {
    padding: 24px 28px;
}

.error-header {
    display: flex; align-items: flex-start; gap: 14px;
}

.error-icon {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--error-soft);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    color: var(--error);
}

.error-title {
    font-family: var(--font-mono);
    font-size: 12px; font-weight: 600;
    color: var(--error);
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.error-message {
    font-family: var(--font-serif);
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ── Activity Log ────────────────────────── */

/* ── JSON Details ────────────────────────── */
.json-card { margin-top: 8px; }

.json-details {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.json-details summary {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px;
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    list-style: none;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: background var(--transition-fast);
}

.json-details summary::-webkit-details-marker { display: none; }
.json-details summary:hover { background: var(--surface-raised); }

.json-chevron {
    transition: transform var(--transition-base);
    color: var(--text-tertiary);
}

.json-details[open] summary .json-chevron { transform: rotate(180deg); }

.json-details[open] summary {
    border-bottom: 1px solid var(--border);
}

pre {
    background: var(--surface-raised);
    color: var(--text-secondary);
    padding: 20px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.7;
    border-top: 1px solid var(--border);
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* ── Toast Notifications ─────────────────── */
.toast-container {
    position: fixed;
    bottom: 24px; right: 24px;
    display: flex;
    flex-direction: column-reverse;
    gap: 8px;
    z-index: 1000;
    max-width: 360px;
}

.toast {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 18px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transition: all var(--transition-base);
}

.toast.removing {
    animation: toastOut 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--error); }

.toast-message {
    font-family: var(--font-serif);
    font-size: 13px;
    color: var(--text);
    line-height: 1.4;
    flex: 1;
}

/* ── Global Drop Overlay ─────────────────── */
.global-drop-overlay {
    position: fixed;
    inset: 0;
    background: var(--accent-soft-strong);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-base);
}

.global-drop-text {
    font-family: var(--font-serif);
    font-size: 24px; font-weight: 500;
    font-style: italic;
    color: var(--accent);
}

/* ── Footer ──────────────────────────────── */
.app-footer {
    text-align: center;
    padding: 24px 24px 16px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
}

/* ── Responsive ──────────────────────────── */
@media (max-width: 900px) {
    .advanced-grid {
        grid-template-columns: 1fr;
    }
    
    .app-main {
        padding: 20px 16px 40px;
    }
    
    .shortcut-hint { display: none; }
    
    .pipeline-connector {
        flex: 0 0 20px;
    }
}

@media (max-width: 480px) {
    .pipeline-stages {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .pipeline-connector {
        width: 20px;
        height: 20px;
        padding: 8px 0 0;
        transform: rotate(90deg);
    }
    
    .result-header {
        flex-direction: column;
        text-align: center;
    }
    
    .result-meta { text-align: center; }
}

/* ── Scrollbar ───────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-tertiary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

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