/* ============================================================
   BeginThings Workspace 3D
   ============================================================ */

/* ---------- THEMES ---------- */
body.theme-midnight {
  --bg-0: #0a0d12; --bg-1: #0f141b; --bg-2: #161c25; --bg-3: #1f2731; --bg-4: #2a3340;
  --line: #2a3340; --line-2: #364252;
  --text: #e7ecf2; --text-dim: #a3adbb; --text-mute: #6b7785;
  --accent: #6ea8ff; --accent-2: #8b5cf6;
  --accent-glow: rgba(110, 168, 255, 0.35);
  --danger: #ef5b6b; --ok: #5cd6a0; --warn: #f0c674;
  --aurora-a: rgba(110,168,255,.20); --aurora-b: rgba(139,92,246,.18); --aurora-c: rgba(92,214,160,.12);
  --on-accent: #0a0d12;
}
body.theme-cloud {
  --bg-0: #f3f6fa; --bg-1: #ffffff; --bg-2: #f7f9fc; --bg-3: #eef2f8; --bg-4: #e1e7f0;
  --line: #dde3eb; --line-2: #c9d2dd;
  --text: #1a2030; --text-dim: #4a5568; --text-mute: #8a93a3;
  --accent: #4f7fff; --accent-2: #7c3aed;
  --accent-glow: rgba(79,127,255,0.28);
  --danger: #e23a4d; --ok: #10b981; --warn: #d97706;
  --aurora-a: rgba(79,127,255,.18); --aurora-b: rgba(124,58,237,.13); --aurora-c: rgba(16,185,129,.10);
  --on-accent: #ffffff;
}
body.theme-ocean {
  --bg-0: #051a26; --bg-1: #082434; --bg-2: #0c2e42; --bg-3: #103a52; --bg-4: #154864;
  --line: #154864; --line-2: #1e5c7e;
  --text: #e3f1f9; --text-dim: #a4cbdf; --text-mute: #6c93a9;
  --accent: #4fc1e9; --accent-2: #80f0d6;
  --accent-glow: rgba(79,193,233,0.32);
  --danger: #ef5b6b; --ok: #80f0d6; --warn: #f7b955;
  --aurora-a: rgba(79,193,233,.20); --aurora-b: rgba(128,240,214,.15); --aurora-c: rgba(247,185,85,.10);
  --on-accent: #051a26;
}
body.theme-sunset {
  --bg-0: #1d0d1a; --bg-1: #2a1326; --bg-2: #361a30; --bg-3: #43213d; --bg-4: #532a4a;
  --line: #4a253f; --line-2: #5c3050;
  --text: #fbeadf; --text-dim: #d9b5a8; --text-mute: #9c7a73;
  --accent: #ff8e72; --accent-2: #f0c674;
  --accent-glow: rgba(255,142,114,0.30);
  --danger: #ef5b6b; --ok: #5cd6a0; --warn: #f0c674;
  --aurora-a: rgba(255,142,114,.22); --aurora-b: rgba(240,198,116,.16); --aurora-c: rgba(239,91,107,.12);
  --on-accent: #1d0d1a;
}

:root {
  --radius-s: 6px; --radius-m: 10px; --radius-l: 16px;
  --shadow-1: 0 2px 8px rgba(0,0,0,.20);
  --shadow-2: 0 10px 40px rgba(0,0,0,.45);
  --ease: cubic-bezier(.4,.0,.2,1);
  --ease-out-back: cubic-bezier(.34,1.56,.64,1);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-0);
  color: var(--text);
  font-size: 14px; line-height: 1.5;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background .4s var(--ease), color .4s var(--ease);
}
button { font: inherit; color: inherit; cursor: pointer; }
input { font: inherit; }
.hidden { display: none !important; }
.muted { color: var(--text-mute); }
em { font-style: normal; color: var(--accent); font-weight: 500; }
code { background: var(--bg-3); padding: 1px 6px; border-radius: 4px; font-size: 12px; }

/* ---------- Animated aurora background ---------- */
.bg-aurora { position: fixed; inset: 0; pointer-events: none; overflow: hidden; z-index: 0; }
.bg-aurora span {
  position: absolute; border-radius: 50%; filter: blur(80px);
  animation: drift 28s ease-in-out infinite;
}
.bg-aurora span:nth-child(1) { width: 50vw; height: 50vw; left: -10vw; top: -10vw;
  background: var(--aurora-a); animation-delay: 0s; }
.bg-aurora span:nth-child(2) { width: 45vw; height: 45vw; right: -10vw; bottom: -10vw;
  background: var(--aurora-b); animation-delay: -8s; }
.bg-aurora span:nth-child(3) { width: 35vw; height: 35vw; left: 30vw; top: 40vh;
  background: var(--aurora-c); animation-delay: -16s; }
@keyframes drift {
  0%,100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(6vw, -4vh) scale(1.05); }
  66% { transform: translate(-5vw, 5vh) scale(0.95); }
}

/* ---------- Screens ---------- */
.screen {
  position: absolute; inset: 0; z-index: 1;
  display: none; opacity: 0;
  transition: opacity .35s var(--ease);
}
.screen.active { display: block; opacity: 1; animation: screenIn .45s var(--ease); }
@keyframes screenIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Buttons ---------- */
.primary {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 130%);
  color: var(--on-accent);
  border: none; padding: 10px 18px;
  border-radius: var(--radius-m);
  font-weight: 600; letter-spacing: .2px;
  box-shadow: 0 6px 22px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,.35);
  transition: transform .12s var(--ease), box-shadow .25s var(--ease), filter .2s var(--ease);
}
.primary:hover { filter: brightness(1.06); transform: translateY(-1px); box-shadow: 0 10px 30px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,.4); }
.primary:active { transform: translateY(0); filter: brightness(.95); }

.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius-m);
  transition: background .18s var(--ease), border-color .18s var(--ease), transform .12s var(--ease);
}
.ghost:hover { background: var(--bg-2); border-color: var(--line-2); }
.ghost:active { transform: scale(.97); }
.ghost.active { background: var(--bg-3); border-color: var(--accent); color: var(--accent); }

.icon-btn { width: 36px; height: 36px; padding: 0; display: grid; place-items: center; }
.icon-btn svg { width: 20px; height: 20px; }

/* ============================================================
   AUTH
   ============================================================ */
#auth-screen { background: var(--bg-0); }
.auth-shell {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.1fr 1fr;
  width: min(1100px, 92vw); margin: 6vh auto 0;
  gap: 64px; align-items: center;
}
.brand h1 {
  font-size: 48px; line-height: 1.1; margin: 18px 0 14px;
  letter-spacing: -1.2px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 60%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand h1 em { color: var(--accent); -webkit-text-fill-color: var(--accent); }
.tagline { color: var(--text-dim); font-size: 16px; margin: 0 0 18px; max-width: 460px; }
.brand-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.brand-points li {
  color: var(--text-dim); padding-left: 22px; position: relative; font-size: 14px;
}
.brand-points li::before {
  content: "";
  position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.brand-mark {
  width: 56px; height: 56px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  transform: rotate(-12deg);
}
.brand-mark span {
  border-radius: 6px; background: linear-gradient(135deg, #7eb4ff, #8b5cf6);
  box-shadow: 0 4px 14px rgba(110,168,255,.4);
}
.brand-mark span:nth-child(2) { background: linear-gradient(135deg, #8b5cf6, #ef5b6b); opacity: .9; }
.brand-mark span:nth-child(3) { background: linear-gradient(135deg, #5cd6a0, #7eb4ff); opacity: .85; }
.brand-mark span:nth-child(4) { background: linear-gradient(135deg, #f0c674, #ef5b6b); opacity: .85; }
.brand-mark.small { width: 22px; height: 22px; gap: 2px; }
.brand-mark.small span { border-radius: 3px; }

.auth-card {
  background: color-mix(in srgb, var(--bg-2) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 28px; backdrop-filter: blur(16px);
  box-shadow: var(--shadow-2);
}
.auth-tabs {
  display: flex; background: var(--bg-1); border: 1px solid var(--line);
  border-radius: var(--radius-m); padding: 4px; margin-bottom: 22px;
}
.auth-tab {
  flex: 1; background: transparent; border: none; color: var(--text-dim);
  padding: 8px 12px; border-radius: 8px; font-weight: 500;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.auth-tab.active { background: var(--bg-3); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }

.auth-form { display: none; flex-direction: column; gap: 14px; }
.auth-form.active { display: flex; animation: fadeUp .35s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.auth-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-dim); }
.auth-form input {
  background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius-m);
  padding: 10px 12px; color: var(--text); outline: none;
  transition: border-color .18s var(--ease), box-shadow .2s var(--ease);
}
.auth-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.auth-form .primary { margin-top: 6px; }
.auth-msg { min-height: 18px; font-size: 13px; }
.auth-msg.error { color: var(--danger); }
.auth-msg.success { color: var(--ok); }
.auth-foot { color: var(--text-mute); font-size: 12px; margin: 16px 0 0; text-align: center; }

@media (max-width: 900px) {
  .auth-shell { grid-template-columns: 1fr; gap: 24px; margin-top: 4vh; }
}

/* ============================================================
   INTRO
   ============================================================ */
.intro-shell {
  position: relative; z-index: 2;
  width: min(720px, 92vw); margin: 8vh auto 0;
  background: color-mix(in srgb, var(--bg-2) 90%, transparent);
  border: 1px solid var(--line); border-radius: var(--radius-l);
  padding: 32px 36px 26px;
  box-shadow: var(--shadow-2); backdrop-filter: blur(20px);
  min-height: 540px;
  display: flex; flex-direction: column;
}
.intro-progress { display: flex; gap: 8px; margin-bottom: 22px; }
.intro-progress .dot { flex: 1; height: 4px; border-radius: 2px; background: var(--bg-3); transition: background .3s var(--ease); }
.intro-progress .dot.active { background: var(--accent); }
.intro-progress .dot.done { background: var(--accent-2); opacity: .8; }

.intro-slide { display: none; flex: 1; flex-direction: column; align-items: center; text-align: center; gap: 14px; }
.intro-slide.active { display: flex; animation: fadeUp .4s var(--ease); }
.intro-slide h2 {
  font-size: 26px; margin: 6px 0 0; letter-spacing: -.3px;
  background: linear-gradient(135deg, var(--text), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.intro-slide p { color: var(--text-dim); max-width: 520px; font-size: 15px; }
.intro-list { list-style: none; padding: 0; margin: 6px 0 0; display: grid; gap: 10px; text-align: left; max-width: 460px; }
.intro-list li { color: var(--text-dim); padding-left: 22px; position: relative; }
.intro-list li::before { content: ""; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.intro-list b { color: var(--text); }

.intro-art {
  width: 200px; height: 130px; border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-glow), color-mix(in srgb, var(--accent-2) 30%, transparent));
  border: 1px solid var(--line); position: relative; overflow: hidden;
}
.intro-art::before, .intro-art::after { content: ""; position: absolute; inset: 0; }
.intro-art[data-art="welcome"]::before {
  background:
    radial-gradient(circle at 30% 60%, var(--accent) 0 6px, transparent 7px),
    radial-gradient(circle at 70% 40%, var(--accent-2) 0 6px, transparent 7px),
    radial-gradient(circle at 50% 80%, var(--ok) 0 5px, transparent 6px);
}
.intro-art[data-art="navigate"]::before {
  background:
    linear-gradient(to right, transparent 49%, var(--line-2) 49% 51%, transparent 51%),
    linear-gradient(to bottom, transparent 49%, var(--line-2) 49% 51%, transparent 51%);
}
.intro-art[data-art="navigate"]::after {
  border: 2px solid var(--accent); width: 40px; height: 40px;
  left: calc(50% - 20px); top: calc(50% - 20px); border-radius: 6px;
  box-shadow: 0 0 0 6px var(--accent-glow); inset: auto;
}
.intro-art[data-art="create"]::before {
  background:
    linear-gradient(135deg, var(--accent) 0 30px, transparent 30px) 20px 20px / 60px 60px no-repeat,
    linear-gradient(135deg, var(--warn) 0 24px, transparent 24px) 100px 30px / 60px 60px no-repeat,
    linear-gradient(135deg, var(--ok) 0 28px, transparent 28px) 60px 70px / 60px 60px no-repeat;
  opacity: .85;
}
.intro-art[data-art="organize"]::before {
  background:
    linear-gradient(180deg, var(--bg-3), var(--bg-4)) 10px 15px / 55px 80px no-repeat,
    linear-gradient(180deg, var(--bg-3), var(--bg-4)) 75px 15px / 55px 80px no-repeat,
    linear-gradient(180deg, var(--bg-3), var(--bg-4)) 140px 15px / 55px 80px no-repeat;
}
.intro-art[data-art="ready"]::before { background: radial-gradient(circle at 50% 60%, var(--ok), transparent 60%); opacity: .6; }
.intro-art[data-art="ready"]::after { content: "✓"; display: grid; place-items: center; font-size: 60px; color: var(--ok); font-weight: 200; }

.intro-controls { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }
.intro-controls .primary { min-width: 100px; }

/* ============================================================
   WORKSPACE SELECTOR
   ============================================================ */
#workspace-screen { background: var(--bg-0); overflow: auto; }
.ws-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-1) 86%, transparent);
  backdrop-filter: blur(10px);
}
.ws-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: .4px; font-size: 14px; }
.ws-actions { display: flex; align-items: center; gap: 10px; }
.ws-user { display: flex; align-items: center; gap: 10px; margin-left: 12px; padding-left: 12px; border-left: 1px solid var(--line); }
#ws-username { color: var(--text-dim); font-size: 13px; }

.ws-main { padding: 36px 28px 60px; max-width: 1280px; margin: 0 auto; position: relative; z-index: 1; }
.ws-title { font-size: 26px; margin: 0 0 4px; letter-spacing: -.5px; }
.ws-sub { color: var(--text-dim); margin: 0 0 24px; }

.ws-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.ws-card {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg-1) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-l); overflow: hidden;
  cursor: pointer;
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .25s var(--ease);
  display: flex; flex-direction: column;
  animation: cardIn .45s var(--ease) both;
}
@keyframes cardIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.ws-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 16px 36px rgba(0,0,0,.35); }
.ws-thumb {
  height: 140px;
  background: radial-gradient(circle at 50% 50%, var(--bg-3) 0%, var(--bg-1) 100%);
  border-bottom: 1px solid var(--line); position: relative; overflow: hidden;
}
.ws-thumb svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.ws-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; }
.ws-body h4 { margin: 0; font-size: 16px; }
.ws-body .ws-meta { font-size: 12px; color: var(--text-mute); }
.ws-body .ws-actions-row { display: flex; gap: 8px; margin-top: 10px; }
.ws-body .ws-actions-row button {
  flex: 1; background: transparent; border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 8px; color: var(--text-dim); font-size: 12px;
  transition: all .18s var(--ease);
}
.ws-body .ws-actions-row button:hover { color: var(--text); border-color: var(--line-2); background: var(--bg-3); }
.ws-body .ws-actions-row button.del:hover { color: var(--danger); border-color: var(--danger); }

.ws-empty { text-align: center; padding: 80px 20px; animation: fadeUp .5s var(--ease); }
.ws-empty-art {
  width: 120px; height: 120px; margin: 0 auto 20px; border-radius: 24px;
  background: linear-gradient(135deg, var(--accent-glow), color-mix(in srgb, var(--accent-2) 25%, transparent));
  border: 1px dashed var(--line-2);
  display: grid; place-items: center;
  color: var(--text-mute); font-size: 40px;
}
.ws-empty-art::after { content: "+"; }
.ws-empty h3 { margin: 0 0 6px; }
.ws-empty p { color: var(--text-dim); margin: 0 0 22px; }

/* ============================================================
   WHITEBOARD
   ============================================================ */
/* === Full-screen canvas with FLOATING chrome === */
#board-screen { background: var(--bg-0); }
#board-screen.active {
  display: block;
  /* keep position:absolute + inset:0 from .screen so it fills the viewport,
     children are absolutely positioned within it */
  overflow: hidden;
}

/* Header — floating pill at top */
.board-header {
  position: absolute; top: 12px; left: 12px; right: 12px;
  height: 44px;
  display: flex; align-items: center; gap: 8px;
  padding: 0 10px 0 6px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-1) 80%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 8px 30px rgba(0,0,0,.25);
  z-index: 5;
}
#board-title {
  background: transparent; border: 1px solid transparent;
  color: var(--text); font-size: 14px; font-weight: 500;
  padding: 6px 10px; border-radius: 6px; width: 260px;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}
#board-title:hover { background: var(--bg-2); }
#board-title:focus { background: var(--bg-2); border-color: var(--accent); outline: none; }
.saved-tag {
  font-size: 11px; color: var(--ok); padding: 3px 8px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--ok) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--ok) 36%, transparent);
  opacity: 0; transition: opacity .35s var(--ease);
}
.saved-tag.visible { opacity: 1; }
.saved-tag.dirty {
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 18%, transparent);
  border-color: color-mix(in srgb, var(--warn) 36%, transparent);
}
.board-actions { margin-left: auto; display: flex; gap: 6px; }
.board-actions .ghost { padding: 6px 12px; font-size: 13px; }
.board-actions .icon-btn { padding: 0; }

/* Toolbar — floating vertical pill on the left */
#toolbar {
  position: absolute;
  left: 12px; top: 50%; transform: translateY(-50%);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--bg-1) 80%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 8px 30px rgba(0,0,0,.25);
  padding: 8px 6px;
  display: flex; flex-direction: column; gap: 4px; align-items: center;
  z-index: 4;
}
.tool {
  width: 40px; height: 40px;
  background: transparent; border: 1px solid transparent;
  border-radius: 8px;
  display: grid; place-items: center;
  color: var(--text-dim);
  transition: all .18s var(--ease);
  position: relative;
}
.tool:hover { color: var(--text); background: var(--bg-3); transform: scale(1.06); }
.tool:active { transform: scale(.94); }
.tool.active {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  box-shadow: 0 4px 14px var(--accent-glow);
}
.tool.danger:hover { color: var(--danger); background: color-mix(in srgb, var(--danger) 14%, transparent); }
.tool svg { width: 22px; height: 22px; fill: currentColor; }
.tool-sep { width: 28px; height: 1px; background: var(--line); margin: 6px 0; }

/* Canvas — fills the entire board screen */
#canvas-container {
  position: absolute; inset: 0;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 40%, color-mix(in srgb, var(--accent-glow) 30%, transparent) 0%, transparent 70%);
}
/* subtle vignette for cloud-feel depth */
#canvas-container::after {
  content: ""; position: absolute; inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 55%, transparent 50%, rgba(0,0,0,.18) 100%);
  z-index: 3;
}
body.theme-cloud #canvas-container::after {
  background: radial-gradient(ellipse at 50% 55%, transparent 55%, rgba(20,30,50,.06) 100%);
}

/* ★ Critical: canvas must fill and receive events. */
#canvas-container canvas.wb-canvas {
  display: block;
  position: absolute; inset: 0;
  width: 100% !important; height: 100% !important;
  outline: none;
  touch-action: none;
}

/* CSS2D layer overlays the canvas but ignores most clicks */
.css2d-renderer {
  position: absolute !important;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

/* Layer selector — horizontal floating pill, top center under the header */
.layer-bar {
  position: absolute; top: 68px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 4px; padding: 5px 10px 5px 6px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: color-mix(in srgb, var(--bg-1) 80%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
  z-index: 4;
  transition: opacity .25s var(--ease), transform .35s var(--ease);
}
.layer-bar-label {
  font-size: 10px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .8px;
  padding: 0 8px 0 6px;
}
.layer-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text-dim);
  font-size: 12px; font-weight: 500;
  cursor: pointer;
  transition: all .15s var(--ease);
  white-space: nowrap;
}
.layer-chip:hover { color: var(--text); background: var(--bg-3); }
.layer-chip.active {
  background: var(--bg-3);
  color: var(--text);
  border-color: var(--line-2);
  box-shadow: 0 2px 10px rgba(0,0,0,.2), inset 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent);
}
.layer-chip .dot {
  width: 9px; height: 9px; border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 8px currentColor;
}
.layer-chip.active .dot { transform: scale(1.15); }
.layer-bar.dimmed { opacity: .35; transition: opacity .2s var(--ease); }
.layer-bar.dimmed:hover { opacity: 1; }

#tool-hint {
  position: absolute; left: 80px; bottom: 70px;
  background: color-mix(in srgb, var(--bg-2) 90%, transparent);
  border: 1px solid var(--line);
  color: var(--text-dim);
  padding: 6px 12px; border-radius: 100px; font-size: 12px;
  z-index: 3; pointer-events: none;
  max-width: calc(100vw - 360px);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  opacity: 0; transform: translateY(6px);
  transition: opacity .25s var(--ease), transform .25s var(--ease);
  backdrop-filter: blur(10px);
}
#tool-hint.visible { opacity: 1; transform: translateY(0); }

/* Floating labels */
.label-3d {
  background: color-mix(in srgb, var(--bg-1) 92%, transparent);
  border: 1px solid var(--line-2);
  color: var(--text);
  font-size: 12px; padding: 4px 8px; border-radius: 6px;
  white-space: nowrap;
  pointer-events: none;
  transform: translate(-50%, -120%);
  backdrop-filter: blur(8px);
  box-shadow: 0 6px 18px rgba(0,0,0,.30);
  animation: labelIn .35s var(--ease-out-back);
}
@keyframes labelIn { from { opacity: 0; transform: translate(-50%, -100%) scale(.85); } to { opacity: 1; transform: translate(-50%, -120%) scale(1); } }
.label-3d.text-label {
  background: transparent; border: 1px dashed transparent;
  color: var(--text); font-size: 16px; padding: 4px 10px;
  pointer-events: auto; user-select: text;
  cursor: text;
  text-shadow: 0 2px 8px rgba(0,0,0,.4);
}
.label-3d.text-label:hover { border-color: var(--accent); }
.label-3d.sticky-label {
  background: var(--warn); color: #2a2010; border: none;
  font-size: 13px; padding: 10px 12px; border-radius: 6px;
  width: 160px; min-height: 110px;
  white-space: pre-wrap; text-align: left;
  transform: translate(-50%, -50%);
  pointer-events: auto; user-select: text;
  box-shadow: 0 10px 24px rgba(0,0,0,.5);
  cursor: text;
}
.label-3d.sticky-label.selected,
.label-3d.text-label.selected { outline: 2px solid var(--accent); outline-offset: 2px; }
.label-3d.zone-label {
  font-size: 13px; font-weight: 600;
  background: color-mix(in srgb, var(--bg-1) 80%, transparent);
  border: 1.5px solid currentColor;
  padding: 6px 14px;
  border-radius: 100px;
  transform: translate(-50%, -50%);
  letter-spacing: .6px;
  text-transform: uppercase;
  backdrop-filter: blur(10px) saturate(150%);
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
  user-select: none;
}
.label-3d.zone-label:hover {
  transform: translate(-50%, -50%) scale(1.04);
  background: color-mix(in srgb, var(--bg-1) 92%, transparent);
}
.label-3d.zone-label.editing,
.label-3d.folder-label.editing {
  cursor: text;
  user-select: text;
  background: color-mix(in srgb, var(--bg-1) 95%, transparent);
  outline: 2px solid currentColor; outline-offset: 2px;
}
.label-3d.folder-label {
  cursor: pointer;
  transition: background .2s var(--ease);
}
.label-3d.folder-label:hover { background: color-mix(in srgb, var(--bg-1) 95%, transparent); }
.label-3d.zone-label.selected { box-shadow: 0 0 0 3px currentColor; }

.drag-hint {
  position: absolute; inset: 12px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 3px dashed var(--accent);
  border-radius: 14px;
  display: grid; place-items: center;
  color: var(--accent); font-size: 18px; font-weight: 500;
  z-index: 10;
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse { 50% { background: color-mix(in srgb, var(--accent) 18%, transparent); } }

/* Properties panel — floating on the right, auto-hides when nothing selected */
#props-panel {
  position: absolute;
  right: 12px; top: 68px;
  width: 280px;
  max-height: calc(100vh - 140px);
  background: color-mix(in srgb, var(--bg-1) 86%, transparent);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 12px 36px rgba(0,0,0,.30);
  display: flex; flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  z-index: 4;
  opacity: 0; pointer-events: none;
  transform: translateX(24px) scale(.96);
  transition: opacity .3s var(--ease), transform .35s var(--ease-out-back);
}
#props-panel.visible { opacity: 1; pointer-events: auto; transform: translateX(0) scale(1); }
.props-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
}
.props-header h3 { margin: 0; font-size: 14px; font-weight: 500; letter-spacing: .3px; }
#props-close { width: 28px; height: 28px; font-size: 18px; }

#props-body { flex: 1; overflow-y: auto; padding: 14px 16px; }
.props-empty { color: var(--text-dim); font-size: 13px; }
.props-empty p { margin: 0 0 8px; }

.prop-row { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.prop-row label { font-size: 11px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .5px; }
.prop-row input[type="text"], .prop-row input[type="url"], .prop-row input[type="number"],
.prop-row textarea, .prop-row select {
  background: var(--bg-2); border: 1px solid var(--line); color: var(--text);
  padding: 7px 9px; border-radius: 6px; outline: none; width: 100%;
  font-family: inherit; transition: border-color .15s var(--ease);
}
.prop-row input:focus, .prop-row textarea:focus, .prop-row select:focus { border-color: var(--accent); }
.prop-row textarea { min-height: 80px; resize: vertical; }
.prop-row.row-xyz { flex-direction: row; gap: 6px; }
.prop-row.row-xyz > div { flex: 1; }
.prop-row.row-xyz input { font-size: 12px; padding: 5px 6px; text-align: center; }
.prop-row.row-xyz .axis-label { font-size: 10px; color: var(--text-mute); text-align: center; }

.prop-color-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 4px; }
.prop-color-grid button {
  aspect-ratio: 1; border: 2px solid transparent; border-radius: 6px;
  cursor: pointer; transition: transform .15s var(--ease), border-color .15s var(--ease);
}
.prop-color-grid button:hover { transform: scale(1.1); }
.prop-color-grid button.active { border-color: var(--text); }

.prop-section { margin: 16px -16px 0; padding: 12px 16px 4px; border-top: 1px solid var(--line); }
.prop-section h4 { margin: 0 0 10px; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--text-mute); }
.prop-actions { display: flex; gap: 6px; margin-top: 8px; }
.prop-actions button {
  flex: 1; background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 6px; padding: 7px; color: var(--text-dim); font-size: 12px;
  transition: all .18s var(--ease);
}
.prop-actions button:hover { color: var(--text); background: var(--bg-3); }
.prop-actions button.danger:hover { color: var(--danger); border-color: var(--danger); }

/* View controls — floating rounded pill at bottom-center */
#view-controls {
  position: absolute;
  bottom: 14px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 18px;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-1) 80%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 8px 30px rgba(0,0,0,.25);
  font-size: 12px;
  z-index: 4;
  max-width: calc(100vw - 24px);
  flex-wrap: wrap;
  justify-content: center;
}
#view-controls .vc-group + .vc-group { border-left: 1px solid var(--line); padding-left: 14px; }
.vc-group { display: flex; align-items: center; gap: 6px; }
.vc-group:last-child { margin-left: auto; }
#view-controls .ghost { padding: 4px 10px; font-size: 12px; }
.vc-toggle {
  display: flex; align-items: center; gap: 6px;
  color: var(--text-dim); font-size: 12px;
  padding: 4px 8px; border-radius: 6px; cursor: pointer;
}
.vc-toggle:hover { color: var(--text); }
.vc-toggle input { margin: 0; accent-color: var(--accent); }

/* ============================================================
   THEME POPOVER
   ============================================================ */
.popover {
  position: absolute; z-index: 100;
  background: color-mix(in srgb, var(--bg-2) 94%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 12px;
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(20px);
  min-width: 220px;
  animation: popIn .25s var(--ease-out-back);
}
@keyframes popIn { from { opacity: 0; transform: translateY(-6px) scale(.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.popover-title { font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--text-mute); margin-bottom: 8px; }
.theme-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px;
}
.theme-grid button {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px;
  display: flex; flex-direction: column; gap: 6px; align-items: flex-start;
  cursor: pointer; transition: all .18s var(--ease);
}
.theme-grid button:hover { border-color: var(--accent); transform: translateY(-1px); }
.theme-grid button.active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.theme-swatch { display: flex; gap: 3px; }
.theme-swatch span { width: 16px; height: 16px; border-radius: 3px; }
.theme-grid .theme-name { font-size: 12px; color: var(--text); font-weight: 500; }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(5,8,12,.6);
  backdrop-filter: blur(8px);
  display: grid; place-items: center;
  z-index: 1000;
  animation: fadeIn .25s var(--ease);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius-l); padding: 24px;
  width: min(480px, 92vw); box-shadow: var(--shadow-2);
  animation: modalIn .3s var(--ease-out-back);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(20px) scale(.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal h3 { margin: 0 0 12px; font-size: 18px; }
.modal p { color: var(--text-dim); margin: 0 0 16px; }
.modal .modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }
.modal .field { margin-bottom: 12px; display: flex; flex-direction: column; gap: 4px; }
.modal .field label { font-size: 12px; color: var(--text-mute); text-transform: uppercase; letter-spacing: .5px; }
.modal .field input, .modal .field select, .modal .field textarea {
  background: var(--bg-1); border: 1px solid var(--line); color: var(--text);
  padding: 9px 11px; border-radius: 8px; outline: none; font-family: inherit;
  transition: border-color .15s var(--ease);
}
.modal .field input:focus, .modal .field select:focus { border-color: var(--accent); }
.modal .help-section { background: var(--bg-1); border-radius: 8px; padding: 12px 14px; margin-bottom: 10px; }
.modal .help-section h4 { margin: 0 0 6px; font-size: 13px; color: var(--accent); }
.modal .help-section ul { margin: 0; padding-left: 18px; color: var(--text-dim); font-size: 13px; }
.modal .help-section li { margin-bottom: 3px; }

.shape-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 6px; }
.shape-grid button {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 8px; padding: 14px 0; color: var(--text-dim);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  font-size: 11px;
  transition: all .18s var(--ease);
}
.shape-grid button:hover { border-color: var(--accent); color: var(--text); background: var(--bg-3); transform: translateY(-2px); }
.shape-grid button svg { width: 30px; height: 30px; fill: currentColor; }

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed; bottom: 60px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: color-mix(in srgb, var(--bg-3) 95%, transparent);
  border: 1px solid var(--line-2);
  color: var(--text);
  padding: 10px 18px; border-radius: 100px;
  font-size: 13px;
  box-shadow: var(--shadow-2); backdrop-filter: blur(12px);
  opacity: 0;
  transition: opacity .3s var(--ease), transform .3s var(--ease-out-back);
  z-index: 2000;
}
.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.success { border-color: var(--ok); color: var(--ok); }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 10px; border: 2px solid var(--bg-0); }
::-webkit-scrollbar-thumb:hover { background: var(--bg-4); }

/* Show mobile-only items only on small screens / touch devices */
.mobile-only { display: none; }
@media (max-width: 900px), (hover: none) {
  .mobile-only { display: grid; }
}

/* ============================================================
   SAAS / PRICING
   ============================================================ */

/* Auth-form Google button + "or" divider */
.google-signin { display: flex; justify-content: center; min-height: 44px; }
.google-signin > div { width: 100%; max-width: 360px; }
.auth-or {
  display: flex; align-items: center; gap: 10px;
  color: var(--text-mute); font-size: 11px;
  text-transform: uppercase; letter-spacing: 1px;
  margin: 4px 0;
}
.auth-or::before, .auth-or::after {
  content: ""; flex: 1; height: 1px; background: var(--line);
}
.auth-or span { white-space: nowrap; }

/* Plan badge */
.plan-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 100px;
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px;
  background: var(--bg-3); color: var(--text-dim);
  border: 1px solid var(--line);
}
.plan-badge[data-plan="pro"] {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent); border-color: transparent;
}
.plan-badge[data-plan="agency"] {
  background: linear-gradient(135deg, var(--accent-2), var(--danger));
  color: #fff; border-color: transparent;
}
.upgrade-cta {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent);
}
.upgrade-cta:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-color: var(--accent);
}

/* Pricing modal — wider than default */
.modal.pricing-modal { width: min(900px, 94vw); padding: 28px; }
.modal.pricing-modal h3 { text-align: center; font-size: 22px; margin-bottom: 4px; }
.modal.pricing-modal .pricing-sub {
  text-align: center; color: var(--text-dim); font-size: 14px; margin: 0 0 22px;
}
.currency-toggle {
  display: flex; justify-content: center; gap: 4px;
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 100px; padding: 3px;
  width: fit-content; margin: 0 auto 20px;
}
.currency-toggle button {
  background: transparent; border: none; color: var(--text-dim);
  padding: 5px 14px; border-radius: 100px; font-size: 12px; font-weight: 500;
  cursor: pointer; transition: all .15s var(--ease);
}
.currency-toggle button.active {
  background: var(--bg-3); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line-2);
}

.plan-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
.plan-card {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: var(--radius-l); padding: 22px 18px;
  display: flex; flex-direction: column; gap: 12px;
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}
.plan-card:hover { transform: translateY(-2px); border-color: var(--line-2); }
.plan-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 12px 32px var(--accent-glow);
  position: relative;
}
.plan-card.featured::before {
  content: "Most popular";
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
  font-size: 10px; font-weight: 700; padding: 3px 12px;
  border-radius: 100px; text-transform: uppercase; letter-spacing: .6px;
}
.plan-card.current {
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-1));
}
.plan-name { font-size: 16px; font-weight: 600; }
.plan-tagline { font-size: 12px; color: var(--text-mute); }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin-top: 8px; }
.plan-price .amount { font-size: 28px; font-weight: 700; letter-spacing: -1px; }
.plan-price .period { font-size: 13px; color: var(--text-mute); }
.plan-features { list-style: none; padding: 0; margin: 12px 0; display: grid; gap: 8px; }
.plan-features li {
  font-size: 13px; color: var(--text-dim);
  padding-left: 22px; position: relative; line-height: 1.4;
}
.plan-features li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--ok); font-weight: 700;
}
.plan-cta {
  margin-top: auto; padding: 10px 16px;
  border-radius: var(--radius-m); font-size: 13px; font-weight: 600;
  border: 1px solid var(--line); background: var(--bg-2); color: var(--text);
  cursor: pointer; transition: all .15s var(--ease);
}
.plan-cta:hover { background: var(--bg-3); border-color: var(--line-2); }
.plan-card.featured .plan-cta {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: var(--on-accent); border: none;
  box-shadow: 0 6px 18px var(--accent-glow);
}
.plan-card.featured .plan-cta:hover { filter: brightness(1.08); }
.plan-cta.current { opacity: .55; cursor: default; }

.pricing-footer {
  margin-top: 20px; text-align: center;
  font-size: 12px; color: var(--text-mute);
}
.pricing-footer a { color: var(--accent); text-decoration: none; }
.pricing-footer a:hover { text-decoration: underline; }

.license-row { display: flex; gap: 8px; margin-top: 14px; }
.license-row input {
  flex: 1; background: var(--bg-2); border: 1px solid var(--line);
  color: var(--text); padding: 9px 11px; border-radius: 8px;
  font-family: ui-monospace, "SF Mono", monospace; font-size: 13px;
  letter-spacing: 1px; text-transform: uppercase;
}
.license-row button {
  background: var(--bg-3); border: 1px solid var(--line-2);
  color: var(--text); padding: 9px 14px; border-radius: 8px;
  cursor: pointer; font-size: 13px;
}

/* Upgrade-prompt mini modal */
.gate-prompt { text-align: center; padding: 12px; }
.gate-prompt h4 {
  margin: 0 0 8px; font-size: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

@media (max-width: 720px) {
  .plan-grid { grid-template-columns: 1fr; }
  .modal.pricing-modal { padding: 20px; }
}

/* ============================================================
   RESPONSIVE — tablet + mobile
   ============================================================ */

/* Tablet (≤ 900px wide) — tighten chrome a bit */
@media (max-width: 900px) {
  .board-header { padding: 0 8px; gap: 6px; }
  #board-title { width: 180px; font-size: 13px; }
  .board-actions .ghost { padding: 6px 10px; font-size: 12px; }
  #view-controls { gap: 12px; padding: 6px 12px; max-width: calc(100vw - 24px); }
  #view-controls .vc-group + .vc-group { padding-left: 10px; }
  #props-panel { width: 260px; }
}

/* Mobile (≤ 600px wide) — compact, stack vertically, icon-only */
@media (max-width: 600px) {
  /* Header — compact, hide non-essential buttons */
  .board-header { height: 40px; padding: 0 6px; gap: 4px; }
  #board-title { width: 100px; font-size: 12px; padding: 4px 8px; }
  #board-saved { font-size: 10px; padding: 2px 6px; }
  /* hide labelled buttons — autosave covers Save, Export available from dashboard */
  #board-save, #board-export { display: none; }
  .board-actions { gap: 4px; }
  .board-actions .icon-btn { width: 32px; height: 32px; }
  .board-actions .icon-btn svg { width: 18px; height: 18px; }

  /* Layer pill — sit just under the header */
  .layer-bar { top: 52px; padding: 4px 8px 4px 4px; gap: 2px; }
  .layer-bar-label { display: none; }
  .layer-chip { padding: 6px 10px; font-size: 11px; }

  /* Toolbar — vertical pill, smaller, scrollable if needed */
  #toolbar {
    left: 8px; padding: 6px 4px;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  #toolbar::-webkit-scrollbar { display: none; }
  .tool { width: 36px; height: 36px; }
  .tool svg { width: 19px; height: 19px; }
  .tool-sep { margin: 3px 0; }

  /* View controls — single scrollable row, lose less-used items */
  #view-controls {
    bottom: 10px; padding: 5px 10px; gap: 10px;
    flex-wrap: nowrap; overflow-x: auto; overscroll-behavior: contain;
    max-width: calc(100vw - 16px);
  }
  #view-controls::-webkit-scrollbar { display: none; }
  #view-controls .vc-group { flex-shrink: 0; }
  #view-controls .vc-group + .vc-group { padding-left: 8px; }
  #view-controls .ghost { padding: 4px 9px; font-size: 11px; }
  #view-side, #view-reset { display: none; } /* less essential */
  #toggle-axes + *, .vc-toggle:has(#toggle-snap) { display: none; }
  #hover-coords { display: none; }

  /* Properties panel — full-width sheet from bottom */
  #props-panel {
    left: 8px; right: 8px; bottom: 70px; top: auto;
    width: auto; max-height: 50vh;
    border-radius: 14px;
    transform: translateY(110%) scale(1);
  }
  #props-panel.visible { transform: translateY(0) scale(1); }

  /* Dashboard header — compact */
  .ws-header { padding: 10px 12px; gap: 8px; flex-wrap: wrap; }
  .ws-actions { gap: 6px; }
  .ws-actions .ghost { padding: 6px 10px; font-size: 12px; }
  #ws-help { display: none; } /* tour available from inside board */
  .ws-user { margin-left: 4px; padding-left: 6px; gap: 6px; }
  #ws-username { font-size: 11px; }
  .ws-main { padding: 20px 12px 40px; }
  .ws-title { font-size: 22px; }
  .ws-grid { grid-template-columns: 1fr; gap: 12px; }

  /* Auth screen — already stacks below 900px via existing media query.
     Just tighten paddings here. */
  .auth-shell { width: 92vw; margin-top: 2vh; gap: 18px; }
  .brand h1 { font-size: 36px; line-height: 1.1; margin: 12px 0 10px; }
  .tagline { font-size: 14px; }
  .auth-card { padding: 22px; }

  /* Intro screen */
  .intro-shell { padding: 22px 18px 18px; min-height: 480px; }
  .intro-slide h2 { font-size: 22px; }
  .intro-art { width: 160px; height: 100px; }

  /* Modal — full-width on mobile */
  .modal { width: 92vw; padding: 18px; }

  /* Disable hover-driven scale/transform on touch devices to avoid sticky states */
  @media (hover: none) {
    .tool:hover, .ghost:hover, .layer-chip:hover,
    .label-3d.zone-label:hover, .ws-card:hover, .auth-tab:hover { transform: none; }
  }

  /* Larger tap targets where it matters */
  .ws-card .ws-actions-row button { padding: 10px 8px; font-size: 13px; }
  .auth-form input, .modal .field input { padding: 12px; font-size: 16px; } /* 16px prevents iOS zoom */
}

/* Extra-tight (≤ 380px) — phones in portrait */
@media (max-width: 380px) {
  .layer-chip { padding: 5px 8px; font-size: 10px; }
  .tool { width: 34px; height: 34px; }
  #board-title { width: 80px; }
}

/* Reduced-motion preference — respect users who disabled animations */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .bg-aurora span { animation: none; }
}

/* Light-theme tweaks for legibility on cloud */
body.theme-cloud .label-3d { box-shadow: 0 4px 12px rgba(20,30,50,.10); }
body.theme-cloud .label-3d.text-label { color: var(--text); text-shadow: 0 2px 8px rgba(255,255,255,.6); }
body.theme-cloud .auth-card,
body.theme-cloud .intro-shell { box-shadow: 0 16px 50px rgba(20,30,50,.10); }
body.theme-cloud .ws-card { box-shadow: 0 6px 18px rgba(20,30,50,.06); }
body.theme-cloud .ws-card:hover { box-shadow: 0 16px 36px rgba(20,30,50,.16); }