/* ───────────────────────── GFXWRLD LAB ─────────────────────────
   Monochrome instrument UI · volt #dcef6f signal accents
   Helvetica = human-readable · IBM Plex Mono = machine-readable  */

:root {
  --bg: #0a0a0b;
  --panel: #111113;
  --panel-2: #151517;
  --edge: #232327;
  --edge-soft: #1b1b1f;
  --txt: #d8d8da;
  --dim: #77777e;
  --faint: #4a4a52;
  --volt: #dcef6f;
  --volt-dim: #dcef6f66;
  --volt-bg: #dcef6f14;
  --mono: 'IBM Plex Mono', monospace;
  --sans: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--txt);
  font-family: var(--sans);
  font-size: 13px;
  overflow: hidden;
}
body { display: flex; flex-direction: column; }

/* ───────────── top bar ───────────── */
#top {
  height: 54px;
  display: flex; align-items: center; gap: 20px;
  padding: 0 16px;
  border-bottom: 1px solid var(--edge);
  background: linear-gradient(#0e0e10, #0b0b0c);
  flex: none;
}
#brand svg { width: 50px; height: auto; display: block; }

#specimen-bar { flex: 1; display: flex; align-items: center; justify-content: center; gap: 12px; }
#specimen-bar .tag { font-family: var(--mono); font-size: 10px; letter-spacing: 0; color: var(--dim); }
#src-text {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0; color: var(--txt);
  background: var(--panel); border: 1px solid var(--edge); border-radius: 3px;
  padding: 7px 16px; min-width: 300px; text-align: center; outline: none;
  resize: none; overflow: hidden; line-height: 1.35;
  white-space: pre; vertical-align: middle;
}
#src-text:focus { border-color: var(--volt-dim); }
#src-text::placeholder { color: var(--faint); letter-spacing: 0; }

#top-actions { display: flex; align-items: center; gap: 10px; }
#export-btn {
  font-family: var(--mono); font-weight: 600; font-size: 12px; letter-spacing: 0;
  color: #0a0a0b; background: var(--volt); border: none; border-radius: 3px;
  padding: 9px 22px; cursor: pointer;
}
#export-btn:hover { filter: brightness(1.08); }
#export-btn:disabled { opacity: 0.45; cursor: wait; }

/* ───────────── auth control ───────────── */
#auth { display: flex; align-items: center; gap: 8px; }
.upgrade-cta {
  font-family: var(--mono); font-weight: 600; font-size: 11px;
  color: var(--volt); background: var(--volt-bg);
  border: 1px solid var(--volt-dim); border-radius: 3px;
  padding: 6px 12px; text-decoration: none; white-space: nowrap;
}
.upgrade-cta:hover { color: #0a0a0b; background: var(--volt); }
.upgrade-cta[hidden] { display: none; }
#auth-signedout, #auth-signedin, #signin-form { display: flex; align-items: center; gap: 6px; }
/* the JS toggles these via the hidden attribute — the ID rules above outrank
   the default [hidden] style, so restore it with a higher-specificity rule */
#auth[hidden], #auth-signedout[hidden], #auth-signedin[hidden], #signin-form[hidden] { display: none; }
#signin-email { width: 160px; }
#signin-form button[type="submit"] {
  font-family: var(--mono); font-weight: 600; font-size: 11px; letter-spacing: 0;
  color: #0a0a0b; background: var(--volt); border: none; border-radius: 3px;
  padding: 6px 12px; cursor: pointer;
}
#signin-cancel { padding: 5px 8px; line-height: 1; }
#auth-email {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0; color: var(--dim);
  max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
#auth-msg {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0; color: var(--dim);
  max-width: 220px;
}

/* export file name field (with a static .png suffix) */
#export-name-wrap { display: inline-flex; align-items: stretch; }
#export-name { width: 150px; border-top-right-radius: 0; border-bottom-right-radius: 0; }
#export-name-wrap .ext {
  display: inline-flex; align-items: center;
  font-family: var(--mono); font-size: 11px; color: var(--dim);
  padding: 0 8px; background: var(--panel-2);
  border: 1px solid var(--edge); border-left: none; border-radius: 0 3px 3px 0;
}

/* ───────────── shared controls ───────────── */
input[type="text"], input[type="search"], input[type="number"], select, .ghost {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0;
  color: var(--txt); background: var(--panel-2);
  border: 1px solid var(--edge); border-radius: 3px;
  padding: 6px 10px; outline: none;
}
select { cursor: pointer; text-transform: uppercase; }
select:hover, input:hover { border-color: #34343a; }
select:focus, input:focus { border-color: var(--volt-dim); }
button { font-family: var(--mono); cursor: pointer; }

input[type="color"] {
  width: 26px; height: 18px; padding: 1px;
  border: 1px solid var(--edge); border-radius: 2px;
  background: var(--panel-2); cursor: pointer;
}

input[type="checkbox"] { accent-color: var(--volt); width: 13px; height: 13px; cursor: pointer; }

/* terminal sliders */
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  height: 14px; background: transparent; cursor: ew-resize; width: 100%;
}
input[type="range"]::-webkit-slider-runnable-track { height: 1px; background: var(--edge); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 9px; height: 9px; border-radius: 0;
  background: #e8e8ea; margin-top: -4px;
}
input[type="range"]:hover::-webkit-slider-thumb,
input[type="range"]:active::-webkit-slider-thumb { background: var(--volt); }
input[type="range"]::-moz-range-track { height: 1px; background: var(--edge); }
input[type="range"]::-moz-range-thumb {
  width: 9px; height: 9px; border: none; border-radius: 0; background: #e8e8ea;
}
input[type="range"]:hover::-moz-range-thumb { background: var(--volt); }

/* ───────────── frame ───────────── */
#frame {
  display: grid;
  grid-template-columns: 52px 248px 1fr 288px;
  flex: 1; min-height: 0;
}

/* icon rail */
#rail {
  border-right: 1px solid var(--edge); background: var(--panel);
  display: flex; flex-direction: column; align-items: center;
  padding-top: 12px; gap: 6px;
}
.rail-btn {
  width: 38px; height: 38px; border-radius: 4px;
  display: grid; place-items: center;
  color: var(--dim); background: none; border: 1px solid transparent;
}
.rail-btn svg { width: 18px; height: 18px; }
.rail-btn.on { color: var(--volt); background: var(--volt-bg); border-color: #dcef6f2e; }
.rail-btn:hover { color: var(--txt); }
.rail-spacer { flex: 1; }
.rail-label {
  writing-mode: vertical-rl; font-family: var(--mono); font-size: 9px;
  letter-spacing: 0; color: var(--faint); margin-bottom: 14px; user-select: none;
}

/* ───────────── side panels ───────────── */
#side { border-right: 1px solid var(--edge); background: var(--panel); min-height: 0; }
.panel { height: 100%; overflow-y: auto; padding: 14px; }

.sec {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0;
  color: var(--dim); margin: 18px 0 8px;
  display: flex; align-items: center; gap: 8px;
}
.sec::after { content: ''; flex: 1; height: 1px; background: var(--edge-soft); }
.sec:first-child { margin-top: 0; }
.sec #preset-count { color: var(--volt); letter-spacing: 0; }

/* formulas */
.fx-group h3 {
  font-family: var(--mono); font-size: 9px; font-weight: 500;
  letter-spacing: 0; color: var(--faint);
  margin: 12px 0 4px; text-transform: uppercase;
  display: flex; align-items: center; gap: 7px;
  cursor: pointer; user-select: none; padding: 3px 2px;
  border-radius: 3px; transition: color 0.15s, background 0.15s;
}
.fx-group h3:hover { color: var(--dim); background: #ffffff08; }
.fx-group h3 .fx-caret {
  font-size: 8px; color: var(--faint); transition: transform 0.18s ease;
  transform: rotate(90deg); transform-origin: center; display: inline-block;
}
.fx-group h3 .fx-gname { flex: 1; }
.fx-group h3 .fx-gcount {
  font-size: 8px; color: var(--faint); letter-spacing: 0;
  background: #ffffff0d; border-radius: 8px; padding: 1px 6px;
}
.fx-group.collapsed h3 .fx-caret { transform: rotate(0deg); }
.fx-group.collapsed .fx-item { display: none; }
.fx-item {
  display: flex; align-items: center; gap: 9px;
  width: 100%; text-align: left;
  font-family: var(--sans); font-weight: 500; font-size: 12.5px; letter-spacing: 0;
  padding: 4px 9px 4px 4px; margin: 2px 0;
  background: none; border: none; border-radius: 3px;
  color: var(--txt);
}
.fx-item .fx-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fx-item .idx { font-family: var(--mono); font-size: 9px; color: var(--faint); letter-spacing: 0; }
.fx-item:hover { background: #ffffff08; }
.fx-item:active { background: #ffffff14; }
.fx-item.active { background: var(--volt-bg); color: var(--volt); }
.fx-item.active .idx { color: var(--volt-dim); }
.fx-thumb {
  flex: 0 0 56px; width: 56px; height: 35px;
  border-radius: 2px; overflow: hidden;
  background: #141416; border: 1px solid var(--edge);
}
.fx-thumb img { width: 100%; height: 100%; display: block; object-fit: cover; opacity: 0; }
.fx-thumb.ready img { opacity: 1; transition: opacity 0.3s ease-out; }
.fx-item.active .fx-thumb { border-color: var(--volt-dim); }

/* variants — rendered inline under the active formula */
#variants-dock { margin: 2px 0 10px; }
#variants-dock .sec { margin-top: 8px; }
.fx-group.collapsed #variants-dock { display: none; }
#variants-dock.collapsed { display: none; }
.sec #preset-save {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0;
  color: var(--volt); background: none;
  border: 1px solid var(--volt-dim); border-radius: 2px;
  padding: 1.5px 7px; flex: none; order: 2; cursor: pointer;
}
.sec #preset-save:hover { background: var(--volt-bg); }
#preset-save-row { display: flex; gap: 6px; margin-bottom: 8px; }
#preset-save-row[hidden] { display: none; }
#preset-save-row input {
  flex: 1; min-width: 0; text-transform: uppercase;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0;
}
#preset-save-row button {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0;
  color: var(--bg); background: var(--volt); border: none; border-radius: 2px;
  padding: 0 10px; cursor: pointer;
}
.preset-item .preset-del {
  flex: none; font-size: 10px; color: var(--faint);
  padding: 0 2px; opacity: 0; transition: opacity 0.15s ease-out;
}
.preset-item:hover .preset-del { opacity: 1; }
.preset-item .preset-del:hover { color: #ff5a5a; }
#preset-search { width: 100%; margin-bottom: 8px; text-transform: uppercase; }
#preset-search::placeholder { color: var(--faint); letter-spacing: 0; }
.preset-cat {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0;
  color: var(--faint); margin: 10px 0 3px; text-transform: uppercase;
}
.preset-item {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  width: 100%; text-align: left;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0;
  padding: 4px 9px 4px 16px;
  background: none; border: none; border-left: 1px solid var(--edge-soft);
  border-radius: 0; color: var(--dim); margin-left: 4px;
}
.preset-item > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.preset-item:hover { color: var(--txt); }
.preset-item:active { color: var(--txt); background: #ffffff0a; }
.preset-item.active { color: var(--volt); border-left-color: var(--volt); }
.preset-item .sw { display: inline-flex; gap: 2px; flex: none; }
.preset-item .sw i {
  width: 8px; height: 8px; border-radius: 1.5px; display: block;
  border: 1px solid #ffffff1c;
}

/* specimen panel */
.srow { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.srow .lbl {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0;
  color: var(--dim); min-width: 64px; text-transform: uppercase;
}
.srow .val { font-family: var(--mono); font-size: 10.5px; color: var(--volt); min-width: 32px; text-align: right; }
.srow select { width: 100%; }
.srow.slider-row input[type="range"] { flex: 1; }
.mode-row { gap: 16px; }
.src-mode {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0; color: var(--dim);
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
}
.src-mode input[type="radio"] { accent-color: var(--volt); }
.wide-btn {
  width: 100%; padding: 8px;
  font-size: 11px; letter-spacing: 0; color: var(--txt);
  background: var(--panel-2); border: 1px solid var(--edge); border-radius: 3px;
}
.wide-btn:hover { border-color: var(--volt-dim); color: var(--volt); }

/* font picker */
#font-picker { position: relative; display: block; width: 100%; }
#src-font { width: 100%; }
#font-panel {
  position: absolute; top: calc(100% + 4px); left: 0; z-index: 60;
  width: 280px; max-height: 340px; overflow-y: auto;
  background: #0c0c0e; border: 1px solid var(--edge); border-radius: 3px;
  box-shadow: 0 12px 40px #000c; padding: 4px;
}
.font-row {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 5px 8px; border-radius: 3px; cursor: pointer; font-size: 12px;
}
.font-row:hover, .font-row.hl { background: var(--volt-bg); }
.font-row.active { background: var(--volt); color: #0a0a0b; }
.font-row .font-preview { font-size: 16px; line-height: 1.1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.font-row .cat { font-family: var(--mono); font-size: 9px; color: var(--faint); white-space: nowrap; letter-spacing: 0; }
.font-row.active .cat { color: #0a0a0baa; }
#font-count { padding: 4px 8px; font-family: var(--mono); font-size: 9px; letter-spacing: 0; color: var(--faint); }

/* ───────────── stage ───────────── */
#stage { display: flex; flex-direction: column; min-width: 0; position: relative;
  background: radial-gradient(ellipse at 50% 42%, #121214 0%, var(--bg) 72%); }
#stage::before {
  content: ''; position: absolute; inset: 0 0 34px 0;
  background-image: linear-gradient(#ffffff05 1px, transparent 1px),
                    linear-gradient(90deg, #ffffff05 1px, transparent 1px);
  background-size: 36px 36px; pointer-events: none;
}
#canvas-wrap { flex: 1; display: grid; place-items: center; overflow: auto; padding: 20px; min-height: 0; }
#vp-frame { position: relative; line-height: 0; }
#view {
  background: repeating-conic-gradient(#1a1a1e 0% 25%, #131316 0% 50%) 0 0 / 18px 18px;
  border: 1px solid var(--edge);
  display: block;
}
.tick { position: absolute; width: 14px; height: 14px; border: 0 solid var(--volt); pointer-events: none; z-index: 2; }
.tick.tl { top: -1px; left: -1px; border-top-width: 1px; border-left-width: 1px; }
.tick.tr { top: -1px; right: -1px; border-top-width: 1px; border-right-width: 1px; }
.tick.bl { bottom: -1px; left: -1px; border-bottom-width: 1px; border-left-width: 1px; }
.tick.br { bottom: -1px; right: -1px; border-bottom-width: 1px; border-right-width: 1px; }

/* on-style typeface picks — docked bottom-right of the observation area */
#font-picks {
  position: absolute; right: 14px; bottom: 46px; z-index: 3;
  max-width: 300px;
  background: #0c0c0ee8; border: 1px solid var(--edge); border-radius: 3px;
  padding: 10px 12px; backdrop-filter: blur(6px);
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
}
#font-picks .picks-head {
  width: 100%; font-family: var(--mono); font-size: 9px;
  letter-spacing: 0; color: var(--dim); margin-bottom: 2px;
  display: flex; align-items: center; justify-content: space-between;
  cursor: pointer; user-select: none;
}
#font-picks .picks-head:hover { color: var(--txt); }
.picks-caret { letter-spacing: 0; font-size: 10px; transition: transform 0.15s; }
#font-picks.collapsed { gap: 0; }
#font-picks.collapsed .picks-head { margin-bottom: 0; }
#font-picks.collapsed .picks-caret { transform: rotate(-90deg); }
#font-picks.collapsed .pick-chip { display: none; }
.pick-chip {
  font-size: 13px; color: var(--txt); line-height: 1;
  background: var(--panel-2); border: 1px solid var(--edge); border-radius: 3px;
  padding: 6px 11px; max-width: 270px; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}
.pick-chip:hover { border-color: var(--volt-dim); color: var(--volt); }
.pick-chip.on { border-color: var(--volt); color: var(--volt); background: var(--volt-bg); }

#stage-bar {
  height: 34px; flex: none;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 14px; border-top: 1px solid var(--edge);
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0; color: var(--faint);
  position: relative; z-index: 1; background: #0c0c0e;
}
#vp-meta { user-select: none; }
#zoom-controls { display: flex; align-items: center; gap: 8px; }
#zoom-controls button {
  font-size: 10px; letter-spacing: 0; color: var(--dim);
  background: none; border: 1px solid var(--edge); border-radius: 3px; padding: 3px 9px;
}
#zoom-controls button:hover { color: var(--volt); border-color: var(--volt-dim); }
#zoom-label { color: var(--dim); }
#before-btn { margin-right: 8px; }
#live-light { margin-right: 8px; cursor: pointer; }
#live-light.on { color: #0a0a0b; background: var(--volt); border-color: var(--volt); }
#live-light:disabled { opacity: 0.35; cursor: not-allowed; }

/* the cursor-tracking light glow (shown only while LIVE LIGHT is active) */
#light-cursor {
  position: fixed; left: 0; top: 0; width: 170px; height: 170px;
  border-radius: 50%; pointer-events: none; z-index: 50;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(220,239,111,0.9) 0%, rgba(220,239,111,0.34) 26%, rgba(220,239,111,0) 68%);
  mix-blend-mode: screen; opacity: 0; transition: opacity 0.18s;
}
#light-cursor.on { opacity: 1; }

/* ───────────── parameters ───────────── */
#params-panel {
  border-left: 1px solid var(--edge); background: var(--panel);
  padding: 16px 18px; min-height: 0;
  display: flex; flex-direction: column; overflow: hidden;
}
#param-list { flex: 1 1 auto; min-height: 80px; overflow-y: auto; padding-right: 4px; }

/* specimen dock: pinned to the bottom of the params column, always visible */
#specimen-dock {
  flex: none; margin: 10px -18px 0; padding: 2px 18px 0;
  border-top: 1px solid var(--edge);
}
#specimen-dock .sec { margin-top: 10px; }
#specimen-dock .srow { margin-bottom: 8px; }
#specimen-dock .warp-env-row select { flex: 1; min-width: 0; }
/* the font browser opens UPWARD here (dock sits at the window bottom) */
#specimen-dock #font-panel {
  top: auto; bottom: calc(100% + 4px); left: auto; right: 0;
}
#specimen-dock #font-picker { flex: 1; min-width: 0; }
#params-panel h2 {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0;
  color: var(--dim); font-weight: 500; margin-bottom: 4px;
}
#formula-name {
  font-family: var(--sans); font-weight: 700; font-size: 16px;
  letter-spacing: -0.05em; color: var(--txt); margin-bottom: 14px;
  text-transform: uppercase;
}
#formula-name span.variant-name { color: var(--volt); }

/* param rows from ui.js */
.param { margin-bottom: 11px; }
.param.prow {
  display: grid; grid-template-columns: 100px 1fr 44px;
  align-items: center; gap: 9px; margin-bottom: 9px;
}
.param.prow .lbl {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0;
  color: var(--dim); text-transform: uppercase;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.param.prow .val { font-family: var(--mono); font-size: 10.5px; color: var(--volt); text-align: right; white-space: nowrap; }

.param label.p-label {
  display: flex; justify-content: space-between; margin-bottom: 4px;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0;
  color: var(--dim); text-transform: uppercase;
}
.param .p-val { color: var(--volt); font-family: var(--mono); }
.param-row { display: flex; gap: 9px; align-items: center;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0; color: var(--dim); text-transform: uppercase; }
.param select { width: 100%; }

#reset-defaults {
  width: 100%; margin: 12px 0 4px; padding: 8px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0; text-transform: uppercase;
  color: var(--dim); background: none; border: 1px solid var(--edge); border-radius: 3px; cursor: pointer;
}
#reset-defaults:hover { color: var(--volt); border-color: var(--volt-dim); }

.gradient-bar {
  width: 100%; height: 20px; border-radius: 2px; border: 1px solid var(--edge);
  cursor: pointer; overflow: hidden; position: relative;
  background: repeating-conic-gradient(#222 0% 25%, #161618 0% 50%) 0 0 / 10px 10px;
}
.gradient-bar canvas { width: 100%; height: 100%; display: block; }

fieldset { border: 1px solid var(--edge); border-radius: 3px; margin: 0 0 12px; padding: 8px 10px; }
legend {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0;
  color: var(--faint); padding: 0 5px; text-transform: uppercase;
}
.lighting-box .param { margin-bottom: 7px; }

.seed-row { display: flex; gap: 7px; }
.seed-row input { flex: 1; min-width: 0; width: 100%; }
.seed-row button {
  font-size: 12px; color: var(--dim);
  background: var(--panel-2); border: 1px solid var(--edge); border-radius: 3px;
  width: 30px;
}
.seed-row button:hover { color: var(--volt); border-color: var(--volt-dim); }

/* ───────────── status strip ───────────── */
#statusbar {
  height: 30px; flex: none;
  border-top: 1px solid var(--edge); background: #0c0c0e;
  display: flex; align-items: center; gap: 26px; padding: 0 16px;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0; color: var(--dim);
  white-space: nowrap; overflow: hidden;
}
#status.live { color: var(--volt); display: inline-flex; align-items: center; gap: 7px; }
#status.live::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%;
  background: var(--volt); animation: pulse 2s infinite; flex: none;
}
@keyframes pulse { 50% { opacity: 0.25; } }
#statusbar .right { margin-left: auto; color: var(--faint); }

/* ───────────── popover (gradient editor) ───────────── */
#popover {
  position: fixed; z-index: 50; width: 320px;
  background: #0c0c0e; border: 1px solid var(--edge);
  border-radius: 3px; padding: 12px;
  box-shadow: 0 12px 40px #000c;
}
#popover h4 {
  margin: 0 0 8px; font-family: var(--mono); font-size: 10px;
  letter-spacing: 0; color: var(--dim); text-transform: uppercase;
}
.stop-row { display: flex; gap: 6px; align-items: center; margin-bottom: 5px; }
.stop-row input[type="range"] { flex: 1; }
.stop-row button {
  padding: 1px 7px; background: var(--panel-2); color: var(--dim);
  border: 1px solid var(--edge); border-radius: 3px; font-size: 10px;
}
.stop-row button:hover { color: var(--volt); }
.pop-actions { display: flex; justify-content: space-between; margin-top: 8px; }
.pop-actions button {
  font-size: 10px; letter-spacing: 0; color: var(--txt);
  background: var(--panel-2); border: 1px solid var(--edge); border-radius: 3px; padding: 5px 10px;
}
.pop-actions button:hover { border-color: var(--volt-dim); color: var(--volt); }
.pop-sec { font-family: var(--mono); font-size: 9px; letter-spacing: 0; color: var(--faint); margin: 8px 0 4px; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--edge); border-radius: 4px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------------------------------------------------------------- feel
   micro-interactions: instrument-style press feedback, keyboard focus,
   consistent motion rhythm, reduced-motion support */
button, .fx-item, .preset-item, .pick-chip, .rail-btn, .font-row, select {
  transition: background-color 0.15s ease-out, color 0.15s ease-out,
              border-color 0.15s ease-out, opacity 0.15s ease-out;
}
button:active, .pick-chip:active, .rail-btn:active { filter: brightness(1.35); }
#export-btn:active { filter: brightness(0.9); }
:focus { outline: none; }
:focus-visible {
  outline: 1px solid var(--volt);
  outline-offset: 1px;
  border-radius: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ───────────────────────── help / FAQ modal ───────────────────────── */
#faq[hidden] { display: none; }
#faq {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center; padding: 28px;
}
.faq-scrim { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.66); backdrop-filter: blur(2px); }
.faq-card {
  position: relative; width: min(760px, 100%); max-height: 84vh;
  display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--edge); border-radius: 8px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
}
.faq-head {
  flex: none; display: flex; align-items: center; justify-content: space-between;
  padding: 15px 20px; border-bottom: 1px solid var(--edge);
}
.faq-head h2 {
  margin: 0; font-family: var(--sans); font-size: 16px; font-weight: 600;
  color: var(--txt); letter-spacing: -0.01em;
}
.faq-x {
  width: 30px; height: 30px; border-radius: 4px; font-size: 14px;
  color: var(--dim); background: none; border: 1px solid transparent;
}
.faq-x:hover { color: var(--txt); border-color: var(--edge); }
.faq-body { padding: 4px 22px 18px; overflow-y: auto; }
.faq-body section { padding: 16px 0; border-bottom: 1px solid var(--edge-soft); }
.faq-body section:last-child { border-bottom: 0; }
.faq-k {
  display: flex; align-items: center; gap: 8px;
  margin: 0 0 9px; font-family: var(--mono); font-size: 9.5px;
  letter-spacing: 0; text-transform: uppercase; color: var(--volt);
}
.faq-ic { width: 15px; height: 15px; flex: none; }
.faq-cta {
  display: inline-block; margin-top: 4px;
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  color: #0a0a0b; background: var(--volt);
  padding: 8px 16px; border-radius: 3px; text-decoration: none;
}
.faq-cta:hover { filter: brightness(1.08); }
.faq-body h3 { margin: 0 0 7px; font-family: var(--mono); font-size: 12px; font-weight: 600; color: var(--volt); }
.faq-body p { margin: 0 0 8px; font-family: var(--sans); font-size: 13px; line-height: 1.62; color: var(--dim); }
.faq-body p:last-child { margin-bottom: 0; }
.faq-body ol, .faq-body ul { margin: 0; padding-left: 18px; }
.faq-body li { font-family: var(--sans); font-size: 13px; line-height: 1.62; color: var(--dim); margin-bottom: 5px; }
.faq-body li:last-child { margin-bottom: 0; }
.faq-body strong { color: var(--txt); font-weight: 600; }

/* ───────────────────────── mobile landing gate ─────────────────────────
   Desktop-only tool. Shown ONLY on actual touch phones — a coarse pointer
   with no hover at phone width. A narrow desktop window has a fine pointer
   and hover, so it never qualifies; tablets/phones wider than 768 (e.g.
   landscape) pass through to the real tool. */
#mobile-gate { display: none; }

.gate-inner {
  width: 100%; max-width: 360px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.gate-logo svg { width: 84px; height: auto; display: block; }
.gate-head {
  margin: 0; font-family: var(--sans); font-weight: 700;
  font-size: 22px; line-height: 1.25; letter-spacing: -0.01em; color: var(--txt);
}
.gate-sub { margin: 0; font-size: 14px; line-height: 1.5; color: var(--dim); }
.gate-btn {
  margin-top: 8px; width: 100%; padding: 15px 20px; cursor: pointer;
  font-family: var(--mono); font-weight: 600; font-size: 13px;
  letter-spacing: 0; text-transform: uppercase;
  color: var(--bg); background: var(--volt); border: none; border-radius: 4px;
}
.gate-btn:active { opacity: 0.85; }
.gate-copied {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0;
  text-transform: uppercase; color: var(--volt);
}

@media (pointer: coarse) and (hover: none) and (max-width: 768px) {
  /* hide the entire desktop tool and replace it with the gate */
  #top, #frame, #statusbar { display: none !important; }
  #mobile-gate {
    display: flex; position: fixed; inset: 0; z-index: 9999;
    align-items: center; justify-content: center; padding: 32px;
    background: radial-gradient(120% 90% at 50% 0%, var(--panel-2), var(--bg));
    color: var(--txt); font-family: var(--sans);
  }
}