/* ═══════════════════════════════════════════
   Bright Icons — style.css
   Full website styles: landing page + editor
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

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

/* ══════════════════════════════
   CSS Variables
══════════════════════════════ */
:root {
  /* Colours */
  --bg:                #0d1117;
  --fg:                #c9d1d9;
  --card:              #161b22;
  --card-fg:           #c9d1d9;
  --primary:           #288e45;
  --primary-fg:        #ffffff;
  --secondary:         #21262d;
  --secondary-fg:      #8b949e;
  --muted:             #30363d;
  --muted-fg:          #6e7681;
  --accent:            #288e45;
  --border:            #30363d;
  --radius:            0.75rem;

  /* Aliases used by landing page CSS */
  --background:           var(--bg);
  --foreground:           var(--fg);
  --card-foreground:      var(--card-fg);
  --primary-foreground:   var(--primary-fg);
  --secondary-foreground: var(--secondary-fg);
  --muted-foreground:     var(--muted-fg);

  /* Typography */
  --font-mono:    'JetBrains Mono', monospace;
  --font-body:    'Inter', sans-serif;
  --font-display: 'JetBrains Mono', monospace;

  /* Gradients */
  --grad-hero:       linear-gradient(135deg, #0d1117 0%, #0d1520 50%, #0a1a10 100%);
  --grad-card:       linear-gradient(145deg, #1a2030 0%, #0d1117 100%);
  --grad-accent:     linear-gradient(135deg, #288e45 0%, #2ea566 100%);
  --gradient-hero:   var(--grad-hero);
  --gradient-card:   var(--grad-card);
  --gradient-accent: var(--grad-accent);

  /* Shadows */
  --shadow-glow: 0 0 30px rgba(40, 142, 69, 0.15);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
}

/* ══════════════════════════════
   Base
══════════════════════════════ */
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  min-height: 100vh;
}

/* Editor page locks scroll; landing page scrolls freely */
body.editor-body { overflow: hidden; }

/* ── Scrollbar ── */
::-webkit-scrollbar              { width: 4px; }
::-webkit-scrollbar-track        { background: transparent; }
::-webkit-scrollbar-thumb        { background: var(--border); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover  { background: var(--muted-fg); }

/* ══════════════════════════════
   Utility classes
══════════════════════════════ */
.text-gradient {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-panel {
  background: var(--grad-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
}

.hover-lift { transition: transform 0.3s ease, box-shadow 0.3s ease; }
.hover-lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-glow); }

/* ══════════════════════════════
   Animations
══════════════════════════════ */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(40, 142, 69, 0.10); }
  50%       { box-shadow: 0 0 40px rgba(40, 142, 69, 0.25); }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-float      { animation: float      3s ease-in-out infinite; }
.animate-fade-up    { animation: fade-up    0.6s ease-out forwards; }
.animate-pulse-glow { animation: pulse-glow 2s  ease-in-out infinite; }


/* ══════════════════════════════════════════════════════
   LANDING PAGE
══════════════════════════════════════════════════════ */

.index-page {
  background: var(--grad-hero);
  min-height: 100vh;
}

/* ── Nav ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  flex-wrap: wrap;
  max-width: 1100px;
  margin: 0 auto;
}
.nav-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  text-decoration: none;
}

.nav-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  color: var(--secondary-fg);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}
.nav-btn:hover { background: var(--muted); color: var(--fg); }

/* Responsive behavior */
@media (max-width: 600px) {
  .nav {
    justify-content: center;
    text-align: center;
  }

  .nav-links {
    justify-content: center;
    width: 100%;
  }

  .nav-logo {
    width: 100%;
    justify-content: center;
  }
}

/* ── Hero ── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 5rem;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  background: var(--secondary);
  color: var(--primary);
  font-family: var(--font-display);
  font-size: 0.75rem;
  margin-bottom: 2rem;
  animation: pulse-glow 2s ease-in-out infinite;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--fg);
}

.hero p {
  font-size: 1.1rem;
  color: var(--muted-fg);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: white;
  background: var(--grad-accent);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}
.hero-cta:hover {
  transform: scale(1.05);
  box-shadow: 0 0 40px rgba(40, 142, 69, 0.30);
}

/* ── Features grid ── */
.features {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 8rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  border-radius: 1rem;
  padding: 1.5rem;
}

.feature-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  background: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--primary);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.feature-card p {
  color: var(--muted-fg);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* ── Footer ── */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  border-top: 1px solid var(--border);
  padding: 1rem;
  text-align: center;
  background: var(--bg);
  color: var(--muted-fg);
  font-size: 0.875rem;
  font-family: var(--font-display);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.footer a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--muted-fg);
  text-decoration: none;
  transition: color 0.2s;
}
.footer a:hover { color: var(--fg); }


/* ══════════════════════════════════════════════════════
   EDITOR PAGE
══════════════════════════════════════════════════════ */

.editor-page {
  background: var(--grad-hero);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Editor nav / top bar ─────────────────
   Both .editor-nav (new) and .topbar (legacy) supported */
.editor-nav,
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 1rem;
}

/* Logo — shared across pages */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
  text-decoration: none;
}

/* Export buttons row */
.export-bar,
.export-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.export-btn,
.exp-btn {
  padding: 0.5rem 1.1rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  color: var(--secondary-fg);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.8rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, color 0.2s;
}
.export-btn:hover, .exp-btn:hover    { background: var(--muted); color: var(--fg); }
.export-btn:active                   { transform: scale(0.95); }
.export-btn.copied, .exp-btn.copied  { background: var(--primary); color: var(--primary-fg); }

/* ── Editor main layout ── */
.editor-main,
.main { flex: 1; display: flex; overflow: hidden; }

/* ── Controls sidebar ─────────────────────
   .controls-sidebar (new) and .sidebar (legacy) */
.controls-sidebar,
.sidebar {
  width: 380px;
  min-width: 340px;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.controls-sidebar { padding: 1.25rem 1.25rem 3rem; gap: 1.25rem; }

/* Section blocks inside sidebar */
.sec { padding: 0.9rem 1rem; border-bottom: 1px solid var(--border); }

.section-header,
.sec-hdr {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted-fg);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.sec-hdr svg { opacity: 0.7; }

.divider { border: none; border-top: 1px solid var(--border); }

/* ── Color palettes ── */
.color-palette,
.pal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.65rem;
}

.color-swatch,
.swatch {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 0.35rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, outline 0.15s;
  outline: 2px solid transparent;
  outline-offset: 1px;
}
.color-swatch:hover, .swatch:hover   { transform: scale(1.25); }
.color-swatch.active, .swatch.active { outline-color: var(--primary); }

.swatch.transparent-swatch {
  background: transparent !important;
  border: 1px dashed var(--border) !important;
  font-size: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-fg);
}

.color-input-row,
.color-row {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  margin-top: 0.25rem;
}

.color-picker-input,
.color-picker {
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 0.375rem;
  border: none;
  cursor: pointer;
  background: transparent;
  padding: 0;
  flex-shrink: 0;
}

.text-input,
.text-inp {
  flex: 1;
  padding: 0.35rem 0.7rem;
  border-radius: 0.375rem;
  background: var(--secondary);
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 0.73rem;
  border: 1px solid var(--border);
  outline: none;
  transition: border-color 0.2s;
  min-width: 0;
}
.text-input:focus, .text-inp:focus { border-color: var(--primary); }

/* ── Button grids ── */
.btn-grid-6, .grid6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0.35rem; }
.btn-grid-5, .grid5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.35rem; }
.grid4              { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.3rem;  }
.grid2              { display: grid; grid-template-columns: 1fr 1fr;        gap: 0.3rem;  }

/* ── Shape / Pattern buttons ── */
.shape-btn,
.sbtn {
  aspect-ratio: 1;
  border-radius: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.6rem;
  border: none;
  cursor: pointer;
  background: var(--secondary);
  color: var(--muted-fg);
  transition: all 0.15s;
  padding: 0.2rem;
}
.shape-btn:hover,  .sbtn:hover  { background: var(--muted); color: var(--fg); }
.shape-btn.active, .sbtn.active { background: var(--primary); color: #fff; }
.shape-btn:active               { transform: scale(0.9); }

.pattern-btn,
.pbtn {
  padding: 0.45rem 0.25rem;
  border-radius: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  background: var(--secondary);
  color: var(--muted-fg);
  transition: all 0.15s;
  text-align: center;
}
.pattern-btn:hover,  .pbtn:hover  { background: var(--muted); color: var(--fg); }
.pattern-btn.active, .pbtn.active { background: var(--primary); color: #fff; }

/* ── Generic buttons ── */
.btn-row { display: flex; gap: 0.5rem; }

.secondary-btn,
.sec-btn {
  flex: 1;
  padding: 0.45rem 0.75rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  color: var(--secondary-fg);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.75rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.secondary-btn:hover,  .sec-btn:hover  { background: var(--muted); color: var(--fg); }
.secondary-btn:active                  { transform: scale(0.95); }
.secondary-btn.active, .sec-btn.active { background: var(--primary); color: #fff; }

.primary-btn,
.prim-btn {
  width: 100%;
  padding: 0.65rem 1rem;
  border-radius: 0.5rem;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.primary-btn:hover, .prim-btn:hover { opacity: 0.9; }
.primary-btn:active                 { transform: scale(0.95); }

.danger-btn {
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  background: rgba(220, 38, 38, 0.15);
  color: #f87171;
  font-family: var(--font-display);
  font-size: 0.7rem;
  border: 1px solid rgba(220, 38, 38, 0.3);
  cursor: pointer;
  transition: all 0.2s;
}
.danger-btn:hover { background: rgba(220, 38, 38, 0.25); }

/* ── Add object buttons ── */
.add-object-btns,
.add-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.375rem;
  margin-bottom: 0.5rem;
}

.add-obj-btn,
.add-btn {
  padding: 0.5rem 0.4rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  color: var(--muted-fg);
  font-family: var(--font-display);
  font-size: 0.7rem;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  transition: all 0.15s;
}
.add-obj-btn:hover,  .add-btn:hover  { background: var(--muted); color: var(--fg); }
.add-obj-btn:active, .add-btn:active { transform: scale(0.95); }

/* ── Paste SVG area ── */
.paste-area {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.4rem;
  animation: slideUp 0.2s ease-out;
  width: 100%;
}

.svg-textarea,
.svg-ta {
  width: 100%;
  height: 6rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 0.73rem;
  border: 1px solid var(--border);
  resize: none;
  outline: none;
}
.svg-textarea:focus, .svg-ta:focus { border-color: var(--primary); }

/* ── Sliders ── */
input[type="range"] { width: 100%; accent-color: var(--primary); }

/* ── Object control labels ── */
.ctrl-lbl {
  font-family: var(--font-display);
  font-size: 0.62rem;
  color: var(--muted-fg);
  margin-bottom: 0.15rem;
  display: flex;
  justify-content: space-between;
}
.ctrl-lbl span { color: var(--fg); }

/* ── Rotation presets ── */
.rotation-presets,
.rot-presets {
  display: flex;
  gap: 0.375rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.rot-btn {
  flex: 1;
  min-width: 2rem;
  padding: 0.25rem;
  border-radius: 0.25rem;
  font-family: var(--font-display);
  font-size: 0.625rem;
  border: none;
  cursor: pointer;
  background: var(--secondary);
  color: var(--muted-fg);
  transition: all 0.15s;
  text-align: center;
}
.rot-btn:hover  { background: var(--muted); }
.rot-btn.active { background: var(--primary); color: #fff; }

/* ── Snap grid row ── */
.snap-row { display: flex; align-items: center; gap: 0.75rem; }

/* ── Layers panel ── */
.layers-panel,
.layers-list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  max-height: 220px;
  overflow-y: auto;
}

.layer-item,
.layer-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  user-select: none;
}
.layer-item:hover,    .layer-row:hover { background: var(--muted); }
.layer-item.selected, .layer-row.sel  {
  border-color: var(--primary);
  background: rgba(40, 142, 69, 0.10);
}

.layer-preview,
.layer-thumb {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  background: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  font-size: 12px;
}
.layer-preview svg, .layer-thumb svg { width: 14px; height: 14px; }
.layer-thumb img { width: 14px; height: 14px; object-fit: contain; }

.layer-name,
.layer-lbl {
  flex: 1;
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-actions,
.layer-acts { display: flex; gap: 0.25rem; flex-shrink: 0; }

.layer-action-btn,
.lact {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 0.25rem;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  background: transparent;
  color: var(--muted-fg);
  transition: all 0.15s;
}
.layer-action-btn:hover,    .lact:hover     { background: var(--muted); color: var(--fg); }
.layer-action-btn.delete:hover, .lact.del:hover {
  background: rgba(220, 38, 38, 0.2);
  color: #f87171;
}

.empty-msg {
  text-align: center;
  color: var(--muted-fg);
  font-family: var(--font-display);
  font-size: 0.7rem;
  padding: 0.75rem 0.5rem;
  line-height: 1.5;
}

/* ── Canvas area ── */
.canvas-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  overflow: hidden;
  position: relative;
}

.canvas-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.canvas-label,
.canvas-lbl {
  font-family: var(--font-display);
  font-size: 0.625rem;
  color: var(--muted-fg);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  text-align: center;
  margin-bottom: 0.25rem;
}

/* Canvas box / wrapper */
.canvas-wrapper,
#canvas-box {
  cursor: default;
  transition: box-shadow 0.3s;
  user-select: none;
  overflow: hidden;
}
.canvas-wrapper.has-selection,
#canvas-box.has-sel            { cursor: grab; }
.canvas-wrapper.has-selection:active,
#canvas-box.has-sel:active     { cursor: grabbing; }
.canvas-wrapper:hover          { filter: brightness(1.03); }

.canvas-svg-container {
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
}
.canvas-svg-container svg,
#canvas-svg { width: 100%; height: 100%; display: block; }

.canvas-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.625rem;
  color: var(--muted-fg);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
}

/* ── Icon picker modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn 0.15s ease;
}
.modal-overlay.open { display: flex; }

.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  width: min(700px, 100%);
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  animation: slideUp 0.2s ease-out;
}

.modal-header,
.modal-hdr { display: flex; align-items: center; justify-content: space-between; }

.modal-title {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--fg);
  font-size: 1rem;
}

.modal-close {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  color: var(--muted-fg);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.modal-close:hover { background: var(--muted); color: var(--fg); }

.search-input,
.search-inp {
  width: 100%;
  padding: 0.625rem 1rem;
  border-radius: 0.5rem;
  background: var(--secondary);
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 0.85rem;
  border: 1px solid var(--border);
  outline: none;
}
.search-input:focus, .search-inp:focus { border-color: var(--primary); }

.icon-count {
  font-size: 0.75rem;
  color: var(--muted-fg);
  font-family: var(--font-display);
}

.icons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
  gap: 0.375rem;
  overflow-y: auto;
  flex: 1;
  padding-right: 0.25rem;
}

.icon-btn {
  aspect-ratio: 1;
  border-radius: 0.5rem;
  background: var(--secondary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-fg);
  transition: all 0.15s;
  position: relative;
}
.icon-btn:hover  { background: var(--muted); color: var(--fg); transform: scale(1.1); }
.icon-btn:active { transform: scale(0.95); }
.icon-btn svg    { width: 18px; height: 18px; pointer-events: none; }

.icon-tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--muted);
  color: var(--fg);
  font-family: var(--font-display);
  font-size: 0.55rem;
  padding: 0.2rem 0.4rem;
  border-radius: 0.25rem;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
}
.icon-btn:hover .icon-tooltip { display: block; }


/* ══════════════════════════════
   Responsive
══════════════════════════════ */
@media (max-width: 1100px) {
  .editor-main,
  .main { flex-direction: column; }

  .controls-sidebar,
  .sidebar {
    width: 100% !important;
    min-width: unset !important;
    max-height: 50vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}