/* ═══════════════════════════════════════════════════════
   Norviq — style.css v7.0
   Green-based premium SaaS design system
   ═══════════════════════════════════════════════════════ */

/* ─── 01. DESIGN TOKENS ──────────────────────────────── */
:root {
  /* Backgrounds — deep charcoal dominant, minimal green tint */
  --bg:        #05070a;
  --s1:        #0d1014;
  --s2:        #131820;
  --s3:        #181e28;
  --s4:        #1e2530;

  /* Borders — near-neutral dark */
  --border:    #1a2030;
  --border-s:  #141a24;
  --border-hi: #22293a;

  /* Text — slightly cooler white, green only as accent */
  --text-1:    #e8edf5;
  --text-2:    #6b7fa0;
  --text-3:    #303d52;

  /* Primary accent — green */
  --accent:     #22c55e;
  --accent-hi:  #4ade80;
  --accent-lo:  #16a34a;
  --accent-dim: rgba(34, 197, 94, 0.07);
  --accent-bd:  rgba(34, 197, 94, 0.28);

  /* Coding accent — teal/emerald */
  --accent-code:     #10b981;
  --accent-code-hi:  #34d399;
  --accent-code-dim: rgba(16, 185, 129, 0.07);
  --accent-code-bd:  rgba(16, 185, 129, 0.28);

  /* Semantic */
  --green:      #22c55e;
  --green-dim:  rgba(34, 197, 94, 0.07);
  --green-bd:   rgba(34, 197, 94, 0.28);
  --red:        #f03e5a;
  --red-dim:    rgba(240, 62, 90, 0.08);
  --red-bd:     rgba(240, 62, 90, 0.25);
  --amber:      #f59e0b;
  --amber-dim:  rgba(245, 158, 11, 0.10);

  /* Layout */
  --topbar-h:     56px;
  --sidebar-w:    300px;
  --sidebar-collapsed-w: 64px;
  --panel-pad:    40px;

  /* Radii */
  --r:    8px;
  --r-lg: 12px;
  --r-xl: 16px;

  /* Typography */
  --f-display: 'Bricolage Grotesque', 'Georgia', system-ui, sans-serif;
  --f-ui:      'Instrument Sans', system-ui, -apple-system, sans-serif;
  --f-mono:    'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* Easing */
  --ease:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-std: cubic-bezier(0.4, 0, 0.2, 1);

  /* Timing */
  --t-fast: 130ms;
  --t-base: 220ms;
  --t-slow: 340ms;
  --t-sidebar: 280ms;
}

/* Light mode */
body.light {
  --bg:       #f2f4f7;
  --s1:       #ffffff;
  --s2:       #eaecf2;
  --s3:       #dee1ea;
  --s4:       #d2d6e4;
  --border:   #cdd1de;
  --border-s: #d8dce8;
  --border-hi:#b8bece;
  --text-1:   #0e1420;
  --text-2:   #485470;
  --text-3:   #8a96b0;
}

/* ─── 02. RESET ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }

body {
  font-family: var(--f-ui);
  font-size: 14px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text-1);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; color: inherit; }
ul, ol { list-style: none; }
em { font-style: italic; }

/* ─── 03. SCROLLBAR ─────────────────────────────────── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ─── 04. TOPBAR ─────────────────────────────────────── */
.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--topbar-h);
  z-index: 300;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px 0 0;
  gap: 0;
}

/* Sidebar toggle button — lives in topbar left */
.sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--sidebar-w);
  height: var(--topbar-h);
  flex-shrink: 0;
  padding: 0 20px;
  border-right: 1px solid var(--border);
  transition: width var(--t-sidebar) var(--ease);
  gap: 10px;
  overflow: hidden;
}

.sidebar-toggle__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--r);
  color: var(--text-2);
  flex-shrink: 0;
  transition: color var(--t-fast) var(--ease-std),
              background var(--t-fast) var(--ease-std);
}
.sidebar-toggle__btn:hover {
  color: var(--text-1);
  background: var(--s2);
}

.sidebar-toggle__logo {
  display: flex;
  align-items: center;
  gap: 9px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  opacity: 1;
  transition: opacity var(--t-sidebar) var(--ease);
}

.logo-mark {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
  transition: color var(--t-base) var(--ease-std);
}
body[data-mode="coding"] .logo-mark { color: var(--accent-code); }

.logo-name {
  font-family: var(--f-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Collapsed sidebar state */
.workspace[data-sidebar="collapsed"] .sidebar-toggle {
  width: var(--sidebar-collapsed-w);
}
.workspace[data-sidebar="collapsed"] .sidebar-toggle__logo {
  opacity: 0;
  pointer-events: none;
  width: 0;
  flex: 0;
}

.topbar__center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding-left: 8px;
}

.topbar-divider {
  width: 1px;
  height: 16px;
  background: var(--border);
  margin: 0 3px;
}

/* ─── 05. MODE SWITCHER ──────────────────────────────── */
.mode-switcher { display: inline-flex; }

.mode-switcher__track {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.12);
}

.mode-switcher__indicator {
  position: absolute;
  top: 3px;
  left: 3px;
  height: calc(100% - 6px);
  background: var(--s4);
  border: 1px solid var(--border-hi);
  border-radius: 7px;
  z-index: 0;
  pointer-events: none;
  transition: left 260ms var(--ease), width 260ms var(--ease), box-shadow 300ms var(--ease);
}

body[data-mode="photo"]  .mode-switcher__indicator {
  box-shadow: 0 1px 4px rgba(0,0,0,0.2), 0 0 14px rgba(34,197,94,0.12);
}
body[data-mode="coding"] .mode-switcher__indicator {
  box-shadow: 0 1px 4px rgba(0,0,0,0.2), 0 0 14px rgba(16,185,129,0.14);
}

.mode-btn {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 7px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: color var(--t-base) var(--ease-std);
  user-select: none;
}
.mode-btn:hover:not(.active) { color: var(--text-2); }
.mode-btn.active { color: var(--text-1); }
.mode-btn svg { flex-shrink: 0; opacity: 0.7; transition: opacity var(--t-base) var(--ease-std); }
.mode-btn.active svg { opacity: 1; }
body[data-mode="photo"]  .mode-btn[data-mode="photo"].active  svg { color: var(--accent); opacity: 1; }
body[data-mode="coding"] .mode-btn[data-mode="coding"].active svg { color: var(--accent-code); opacity: 1; }

/* ─── LANG + CONTROLS ────────────────────────────────── */
.lang-selector {
  display: flex;
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: 7px;
  overflow: hidden;
  padding: 2px;
  gap: 1px;
}
.lang-btn {
  padding: 4px 9px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-2);
  border-radius: 5px;
  transition: color var(--t-fast) var(--ease-std), background var(--t-fast) var(--ease-std);
}
.lang-btn:hover  { color: var(--text-1); background: var(--s3); }
.lang-btn.active { color: var(--text-1); background: var(--s3); }

.theme-toggle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r);
  color: var(--text-2);
  transition: color var(--t-fast) var(--ease-std), background var(--t-fast) var(--ease-std);
}
.theme-toggle:hover { color: var(--text-1); background: var(--s2); }

.icon-sun, .icon-moon { display: block; }
body:not(.light) .icon-moon { display: none; }
body.light .icon-sun  { display: none; }
body.light .icon-moon { display: block; }

.status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--s2);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: 0.04em;
}

.status-pip {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-pip 3s ease-in-out infinite;
}

@keyframes pulse-pip {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
  50%       { box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.14); }
}

/* ─── 06. WORKSPACE LAYOUT ───────────────────────────── */
.workspace {
  margin-top: var(--topbar-h);
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: calc(100dvh - var(--topbar-h));
  overflow: hidden;
  transition: grid-template-columns var(--t-sidebar) var(--ease);
}

.workspace[data-sidebar="collapsed"] {
  grid-template-columns: var(--sidebar-collapsed-w) 1fr;
}

/* Mobile overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: var(--topbar-h) 0 0 0;
  background: rgba(11, 15, 13, 0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  transition: opacity var(--t-sidebar) var(--ease);
}
.sidebar-overlay.visible { opacity: 1; }

/* ─── 07. LEFT PANEL / SIDEBAR ───────────────────────── */
.left-panel {
  position: sticky;
  top: var(--topbar-h);
  height: calc(100dvh - var(--topbar-h));
  overflow: hidden;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: var(--s1);
  transition: width var(--t-sidebar) var(--ease);
  width: var(--sidebar-w);
  /* subtle ambient glow on right edge */
  box-shadow: 1px 0 0 0 var(--border);
}

.workspace[data-sidebar="collapsed"] .left-panel {
  width: var(--sidebar-collapsed-w);
}

.left-panel__inner {
  display: flex;
  flex-direction: column;
  padding: 28px 24px 28px;
  min-height: 100%;
  gap: 0;
  width: var(--sidebar-w);
  transition: opacity var(--t-sidebar) var(--ease),
              transform var(--t-sidebar) var(--ease);
}

.workspace[data-sidebar="collapsed"] .left-panel__inner {
  opacity: 0;
  transform: translateX(-8px);
  pointer-events: none;
}

/* Collapsed icon column */
.sidebar-icon-col {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--sidebar-collapsed-w);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 0;
  gap: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-sidebar) var(--ease);
}
.workspace[data-sidebar="collapsed"] .sidebar-icon-col {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-icon-item {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r);
  color: var(--text-3);
  transition: color var(--t-fast) var(--ease-std), background var(--t-fast) var(--ease-std);
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}
.sidebar-icon-item:hover {
  color: var(--text-1);
  background: var(--s2);
}
.sidebar-icon-item.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.panel-divider {
  height: 1px;
  background: var(--border-s);
  margin: 24px 0;
}

/* Hero section */
.hero__eyebrow {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  transition: color var(--t-slow) var(--ease-std);
}
body[data-mode="coding"] .hero__eyebrow { color: var(--accent-code); }

.hero__title {
  font-family: var(--f-display);
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--text-1);
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero__em {
  font-style: italic;
  font-weight: 400;
  color: var(--text-2);
}

.hero__desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-2);
}

/* Feature list */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-icon {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-bd);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  transition: all var(--t-slow) var(--ease-std);
}
body[data-mode="coding"] .feature-icon {
  background: var(--accent-code-dim);
  border-color: var(--accent-code-bd);
  color: var(--accent-code);
}

.feature-text {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.4;
}

/* Chips */
.chips-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 12px;
}

.chips-scroll-wrap {
  overflow-x: auto;
  margin: 0 -2px;
  padding: 0 2px 4px;
  -webkit-overflow-scrolling: touch;
}

.chips-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.q-chip {
  padding: 9px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--t-fast) var(--ease-std),
              background var(--t-fast) var(--ease-std),
              border-color var(--t-fast) var(--ease-std),
              transform var(--t-fast) var(--ease);
}
.q-chip:hover {
  color: var(--text-1);
  background: var(--s2);
  border-color: var(--accent-bd);
  transform: translateY(-1px);
}
body[data-mode="coding"] .q-chip:hover { border-color: var(--accent-code-bd); }
.q-chip:active { transform: translateY(0); background: var(--accent-dim); }

/* Footer */
.left-footer {
  margin-top: auto;
  padding-top: 24px;
  display: flex;
  align-items: center;
  gap: 7px;
  border-top: 1px solid var(--border-s);
}
.left-footer__brand {
  font-family: var(--f-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-3);
}
.left-footer__dot { color: var(--text-3); font-size: 12px; }
.left-footer__slogan { font-size: 12px; color: var(--text-3); font-style: italic; }

/* ─── 08. RIGHT PANEL ─────────────────────────────────── */
.right-panel {
  background: var(--bg);
  min-height: calc(100dvh - var(--topbar-h));
  overflow-y: auto;
  /* Subtle noise texture for premium feel */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.018'/%3E%3C/svg%3E");
}

.right-panel__inner {
  max-width: 700px;
  margin: 0 auto;
  padding: 48px 48px 80px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ─── 09. WORKSPACE HEADER ────────────────────────────── */
.workspace-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 4px;
}
.workspace-header__left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.workspace-title {
  font-family: var(--f-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-1);
  line-height: 1;
}
.workspace-sub { font-size: 13px; color: var(--text-2); }

.kb-hint {
  display: flex;
  align-items: center;
  gap: 3px;
  padding-bottom: 2px;
}
kbd {
  display: inline-block;
  padding: 2px 7px;
  background: var(--s2);
  border: 1px solid var(--border-hi);
  border-radius: 5px;
  font-family: var(--f-ui);
  font-size: 10.5px;
  font-weight: 500;
  color: var(--text-2);
  line-height: 1.6;
}
.kb-sep { font-size: 11px; color: var(--text-3); }

/* ─── 10. INPUT CARD ──────────────────────────────────── */
.input-card {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color var(--t-base) var(--ease-std),
              box-shadow var(--t-base) var(--ease-std);
}
.input-card:focus-within {
  border-color: var(--accent-bd);
  box-shadow: 0 0 0 3px var(--accent-dim),
              0 4px 20px rgba(34, 197, 94, 0.06);
}
body[data-mode="coding"] .input-card:focus-within {
  border-color: var(--accent-code-bd);
  box-shadow: 0 0 0 3px var(--accent-code-dim),
              0 4px 20px rgba(16, 185, 129, 0.06);
}

.prompt-input {
  display: block;
  width: 100%;
  min-height: 112px;
  padding: 20px 22px 10px;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-1);
  overflow: hidden;
}
.prompt-input::placeholder { color: var(--text-3); }

.input-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 8px 18px 14px;
}
.char-count {
  font-size: 11.5px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}
.char-sep { margin: 0 1px; }

/* ─── 11. UPLOAD SECTION ─────────────────────────────── */
.upload-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.upload-header-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 7px;
}
.upload-header-optional {
  font-weight: 400;
  text-transform: none;
  font-style: italic;
  letter-spacing: 0;
  font-size: 10.5px;
}

.upload-zone {
  position: relative;
  border: 1.5px dashed var(--border-hi);
  border-radius: var(--r-lg);
  background: var(--s1);
  transition: border-color var(--t-base) var(--ease-std),
              background   var(--t-base) var(--ease-std),
              box-shadow   var(--t-base) var(--ease-std);
  overflow: hidden;
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--accent-bd);
  background: var(--accent-dim);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
body[data-mode="coding"] .upload-zone:hover,
body[data-mode="coding"] .upload-zone.drag-over {
  border-color: var(--accent-code-bd);
  background: var(--accent-code-dim);
  box-shadow: 0 0 0 3px var(--accent-code-dim);
}

/* Dashed border animation on hover */
@keyframes dash-march {
  to { stroke-dashoffset: -20; }
}
.upload-zone:hover {
  animation: none;
}

.upload-idle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 22px 24px;
  cursor: pointer;
  text-align: center;
}
.upload-zone.has-image .upload-idle { display: none; }

.upload-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--s3);
  border: 1px solid var(--border-hi);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  flex-shrink: 0;
  transition: background var(--t-fast) var(--ease-std),
              color var(--t-fast) var(--ease-std),
              border-color var(--t-fast) var(--ease-std);
}
.upload-zone:hover .upload-icon {
  background: var(--accent-dim);
  border-color: var(--accent-bd);
  color: var(--accent);
}
body[data-mode="coding"] .upload-zone:hover .upload-icon {
  background: var(--accent-code-dim);
  border-color: var(--accent-code-bd);
  color: var(--accent-code);
}

.upload-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  pointer-events: none;
}
.upload-sublabel {
  font-size: 11px;
  color: var(--text-3);
  pointer-events: none;
}

/* Preview */
.upload-preview { display: none; position: relative; width: 100%; }
.upload-zone.has-image .upload-preview { display: flex; }

.upload-preview__img-wrap {
  position: relative;
  width: 100%;
  max-height: 180px;
  overflow: hidden;
  border-radius: calc(var(--r-lg) - 1px) calc(var(--r-lg) - 1px) 0 0;
  background: var(--s2);
}
.upload-preview__img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.upload-preview__img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 55%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
}
.upload-preview__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--s2);
  border-top: 1px solid var(--border-s);
  gap: 8px;
}
.upload-preview__name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 80px);
  font-family: var(--f-mono);
}
.upload-vision-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
  background: var(--accent-dim);
  border: 1px solid var(--accent-bd);
  color: var(--accent-hi);
}
body[data-mode="coding"] .upload-vision-badge {
  background: var(--accent-code-dim);
  border-color: var(--accent-code-bd);
  color: var(--accent-code-hi);
}
.upload-vision-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-pip 2.4s ease-in-out infinite;
}
body[data-mode="coding"] .upload-vision-dot { background: var(--accent-code); }

.upload-remove-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.10);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.85);
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast) var(--ease);
}
.upload-remove-btn:hover {
  background: rgba(240,62,90,0.8);
  color: #fff;
  transform: scale(1.1);
}

.upload-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  font-size: 0;
  z-index: 1;
}
.upload-zone.has-image .upload-file-input { pointer-events: none; }

@keyframes upload-preview-in {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1); }
}
.upload-zone.has-image .upload-preview {
  animation: upload-preview-in 0.24s var(--ease) both;
}

/* ─── 12. ADVANCED BLOCK ──────────────────────────────── */
.adv-block {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.adv-summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 18px;
  cursor: pointer;
  user-select: none;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  transition: color var(--t-fast), background var(--t-fast);
}
.adv-summary::-webkit-details-marker { display: none; }
.adv-summary::marker { display: none; }
.adv-summary:hover { color: var(--text-1); background: var(--s2); }

.adv-chevron {
  color: var(--text-3);
  flex-shrink: 0;
  transition: transform var(--t-base) var(--ease);
}
details[open] .adv-chevron { transform: rotate(180deg); }

.adv-badge {
  margin-left: auto;
  font-size: 10.5px;
  font-weight: 400;
  color: var(--text-3);
  font-style: italic;
}

.adv-body {
  padding: 16px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-top: 1px solid var(--border-s);
}

.setting-row { display: flex; flex-direction: column; gap: 10px; }
.setting-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-3);
}
.setting-opt { font-weight: 400; letter-spacing: 0; text-transform: none; font-size: 10.5px; font-style: italic; }

.chip-group { display: flex; flex-wrap: wrap; gap: 6px; }

.o-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}
.o-chip:hover  { color: var(--text-1); border-color: var(--border-hi); background: var(--s2); }
.o-chip.active { color: var(--accent-hi); background: var(--accent-dim); border-color: var(--accent-bd); }
body[data-mode="coding"] .o-chip.active {
  color: var(--accent-code-hi);
  background: var(--accent-code-dim);
  border-color: var(--accent-code-bd);
}

.c-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c, #666);
  flex-shrink: 0;
}

.extra-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: 13px;
  color: var(--text-1);
  outline: none;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.extra-input::placeholder { color: var(--text-3); }
.extra-input:focus {
  border-color: var(--accent-bd);
  box-shadow: 0 0 0 3px var(--accent-dim);
  background: var(--bg);
}
body[data-mode="coding"] .extra-input:focus {
  border-color: var(--accent-code-bd);
  box-shadow: 0 0 0 3px var(--accent-code-dim);
}

/* ─── 13. GENERATE BUTTON ─────────────────────────────── */
.forge-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: 100%;
  height: 56px;
  background: linear-gradient(135deg, var(--accent-lo) 0%, var(--accent) 50%, var(--accent-hi) 100%);
  background-size: 200% 200%;
  background-position: 0% 0%;
  border-radius: var(--r-lg);
  font-family: var(--f-display);
  font-size: 15.5px;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.01em;
  overflow: hidden;
  transition: background-position var(--t-slow) var(--ease),
              transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}

body[data-mode="coding"] .forge-btn {
  background: linear-gradient(135deg, #059669 0%, var(--accent-code) 50%, var(--accent-code-hi) 100%);
  background-size: 200% 200%;
}

.forge-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.10) 50%, transparent 70%);
  background-size: 200% 100%;
  background-position: -200% 0;
  border-radius: inherit;
  transition: background-position 0.6s var(--ease);
}

.forge-btn:hover {
  background-position: 100% 100%;
  box-shadow: 0 8px 36px rgba(34, 197, 94, 0.30),
              0 3px 10px rgba(34, 197, 94, 0.18),
              inset 0 1px 0 rgba(255,255,255,0.12);
  transform: translateY(-2px);
}
.forge-btn:hover::before { background-position: 200% 0; }
body[data-mode="coding"] .forge-btn:hover {
  box-shadow: 0 8px 36px rgba(16, 185, 129, 0.30),
              0 3px 10px rgba(16, 185, 129, 0.18);
}
.forge-btn:active { transform: translateY(0); box-shadow: none; }

.forge-btn__text  { position: relative; z-index: 1; }
.forge-btn__arrow {
  position: relative;
  z-index: 1;
  transition: transform var(--t-base) var(--ease);
}
.forge-btn:hover .forge-btn__arrow { transform: translateX(3px); }

.forge-btn__spinner {
  display: none;
  width: 17px;
  height: 17px;
  border: 2px solid rgba(255,255,255,0.25);
  border-top-color: #fff;
  border-radius: 50%;
  position: relative;
  z-index: 1;
}
.forge-btn.is-loading .forge-btn__spinner { display: block; animation: spin 0.65s linear infinite; }
.forge-btn.is-loading .forge-btn__text  { opacity: 0.6; }
.forge-btn.is-loading .forge-btn__arrow { display: none; }
.forge-btn:disabled { opacity: 0.8; pointer-events: none; }

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

/* ─── 14. OUTPUT PANEL ────────────────────────────────── */
.output-panel {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 4px 28px rgba(0,0,0,0.22), 0 1px 4px rgba(0,0,0,0.12);
  animation: panel-in 0.34s var(--ease) both;
}
.output-panel.hidden { display: none; }

@keyframes panel-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-s);
  background: var(--s2);
}
.output-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.output-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px var(--green-dim);
}
.output-actions { display: flex; align-items: center; gap: 6px; }

.action-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-2);
  background: transparent;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast),
              transform var(--t-fast) var(--ease);
}
.action-btn:hover {
  color: var(--text-1);
  background: var(--s3);
  border-color: var(--border-hi);
  transform: translateY(-1px);
}
.action-btn:active { transform: translateY(0); }
.action-btn--copy { background: var(--s3); border-color: var(--border-hi); color: var(--text-1); }
.action-btn--copy.copied { color: var(--green); border-color: var(--green-bd); background: var(--green-dim); }

.offline-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--amber-dim);
  border-bottom: 1px solid rgba(245,158,11,0.16);
  font-size: 12px;
  color: var(--amber);
  font-weight: 500;
}

.output-mode-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border-s);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-3);
}
.output-mode-tag::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.output-mode-tag[data-mode="coding"]::before { background: var(--accent-code); }
.output-mode-tag:empty { display: none; }

.output-body { padding: 24px 24px 20px; border-bottom: 1px solid var(--border-s); }

.output-text {
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-1);
  word-break: break-word;
  white-space: pre-wrap;
}
.output-panel[data-mode="coding"] .output-text { font-size: 12.5px; }

.output-tips {
  padding: 14px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-bottom: 1px solid var(--border-s);
  background: var(--bg);
}
.output-tips:empty { display: none; padding: 0; border: none; }

.tip {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 9px;
}
.tip::before {
  content: '→';
  color: var(--accent);
  opacity: 0.5;
  font-size: 11px;
  flex-shrink: 0;
  margin-top: 1px;
}
body[data-mode="coding"] .tip::before { color: var(--accent-code); }

.output-compat {
  padding: 10px 20px;
  font-size: 11.5px;
  color: var(--text-3);
  letter-spacing: 0.02em;
  background: var(--bg);
}

/* ─── 15. MODE TRANSITION ─────────────────────────────── */
.mode-transition { will-change: opacity, transform; }
.mode-transition.is-exiting {
  opacity: 0;
  transform: translateY(-8px) scale(0.995);
  pointer-events: none;
  transition: opacity 160ms var(--ease-std), transform 160ms var(--ease-std);
}
.mode-transition.is-entering {
  opacity: 0;
  transform: translateY(10px) scale(0.995);
  pointer-events: none;
  transition: none;
}
.mode-transition.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: opacity 280ms var(--ease), transform 280ms var(--ease);
}

/* ─── 16. SHAKE ───────────────────────────────────────── */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-5px); }
  40%       { transform: translateX(5px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}
.shake-anim { animation: shake 0.38s var(--ease-std); }

/* ─── 17. TABLET (< 1100px) ──────────────────────────── */
@media (max-width: 1099px) {
  :root { --sidebar-w: 260px; }
  .left-panel__inner { padding: 22px 20px; }
  .right-panel__inner { padding: 36px 36px 64px; max-width: 100%; }
  .hero__title { font-size: 22px; }
  .chips-list  { grid-template-columns: 1fr; }
  .mode-btn__label { display: none; }
  .mode-btn { padding: 7px 12px; }
}

/* ─── 18. MOBILE (< 768px) ───────────────────────────── */
@media (max-width: 767px) {
  :root { --topbar-h: 52px; }

  /* Topbar — keep language visible */
  .topbar { padding: 0; }
  .sidebar-toggle { width: 52px; padding: 0 10px; gap: 0; }
  .sidebar-toggle__logo { display: none; }
  .topbar-divider { display: none; }
  .status-badge { display: none; }
  .topbar__center { padding: 0 8px; }
  .mode-btn__label { display: none; }
  .mode-btn { padding: 7px 11px; }

  /* Language switcher stays visible on mobile */
  .topbar__right { gap: 4px; padding-left: 4px; }
  .lang-selector { padding: 2px; }
  .lang-btn { padding: 4px 7px; font-size: 10px; }

  /* Workspace */
  .workspace {
    grid-template-columns: 1fr;
    height: calc(100dvh - var(--topbar-h));
    overflow: hidden;
  }
  .workspace[data-sidebar="collapsed"] { grid-template-columns: 1fr; }

  /* Sidebar becomes a drawer */
  .left-panel {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    bottom: 0;
    width: min(var(--sidebar-w), 85vw) !important;
    height: auto;
    z-index: 250;
    transform: translateX(-110%);
    transition: transform var(--t-sidebar) var(--ease);
    border-right: 1px solid var(--border);
    box-shadow: 4px 0 40px rgba(0,0,0,0.5);
  }
  .left-panel__inner { width: min(var(--sidebar-w), 85vw); }
  .workspace[data-sidebar="open"] .left-panel { transform: translateX(0); }
  .workspace[data-sidebar="open"] .sidebar-overlay { display: block; }

  /* Mobile sidebar: show feature list & proper sections */
  .hero__desc   { display: none; }
  .feature-list { display: none; }
  .panel-divider:first-of-type { display: none; }
  .left-footer  { display: none; }

  /* Icon col hidden on mobile */
  .sidebar-icon-col { display: none; }

  /* Content stays full-width with scroll */
  .right-panel {
    min-height: 0;
    height: calc(100dvh - var(--topbar-h));
    overflow-y: auto;
    overflow-x: hidden;
  }
  .right-panel__inner { padding: 24px 20px 48px; }
  .workspace-header { flex-direction: column; align-items: flex-start; gap: 4px; }
  .kb-hint { display: none; }
  .forge-btn { height: 52px; font-size: 14.5px; }

  /* Mobile presets: vertical stacked list instead of chips */
  .chips-section { margin-top: 4px; }
  .chips-scroll-wrap {
    overflow-y: auto;
    max-height: 260px;
    padding-bottom: 0;
    -webkit-mask: linear-gradient(to bottom, #000 80%, transparent 100%);
    mask: linear-gradient(to bottom, #000 80%, transparent 100%);
  }
  .chips-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
  }
  .q-chip {
    padding: 11px 14px;
    font-size: 13px;
    white-space: normal;
    text-align: left;
    border-radius: 10px;
    display: flex;
    align-items: center;
    min-height: 44px;
  }
  .upload-idle { padding: 16px; gap: 6px; }
  .upload-preview__img { height: 140px; }
}

/* ─── 19. SMALL MOBILE (< 480px) ─────────────────────── */
@media (max-width: 479px) {
  .right-panel__inner { padding: 20px 16px 48px; }
  .prompt-input { min-height: 96px; padding: 16px 16px 8px; }
  /* Show only active lang on tiny screens */
  .lang-btn:not(.active) { display: none; }
}

/* ─── Sidebar icon column tooltip ────────────────────── */
.sidebar-icon-item {
  position: relative;
}
.sidebar-icon-item::after {
  content: attr(title);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--s3);
  border: 1px solid var(--border-hi);
  color: var(--text-1);
  font-size: 11.5px;
  font-weight: 500;
  padding: 4px 9px;
  border-radius: 6px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--t-fast) var(--ease-std);
  z-index: 400;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.sidebar-icon-item:hover::after {
  opacity: 1;
}

/* ─── Mobile lang full labels ─────────────────────────── */
@media (min-width: 480px) and (max-width: 767px) {
  .lang-btn { padding: 4px 8px; font-size: 10.5px; }
}

/* ─── 20. ACCESSIBILITY ───────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
body[data-mode="coding"] :focus-visible { outline-color: var(--accent-code); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}