:root {
  --accent: #4a9eff;
  --meta: #2b2f36;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
  -webkit-user-select: none; user-select: none;
}

/* ============================ LAUNCHER ============================ */
body.launcher {
  background: #0e1013; color: #fff; height: 100vh;
  display: flex; align-items: center; justify-content: center;
}
.launch-card { max-width: 460px; padding: 32px; text-align: center; }
.launch-card h1 { font-size: 26px; margin-bottom: 10px; }
.launch-card .sub { color: rgba(255,255,255,0.6); font-size: 14px; line-height: 1.5; margin-bottom: 14px; }
.launch-btns { display: flex; flex-direction: column; gap: 12px; margin: 22px 0 14px; }
.launch-btns button {
  padding: 14px 18px; font-size: 15px; border-radius: 12px; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.14); background: #1a1e24; color: #fff;
}
.launch-btns button:hover { background: #222831; border-color: var(--accent); }
.launch-card .note { color: rgba(255,255,255,0.35); font-size: 12px; }

/* ============================ HUD PAGE ============================ */
body.hud-page { background: #000; color: #fff; height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; overflow: hidden; }
#viewport {
  position: relative; width: min(96vw, 1180px); aspect-ratio: 16 / 9;
  background: #000; border-radius: 16px; overflow: hidden;
  box-shadow: 0 24px 70px rgba(0,0,0,0.6);
}
#video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: brightness(0.6); }
#worldcanvas { position: absolute; inset: 0; width: 100%; height: 100%; display: none; filter: brightness(0.62); }
#worldcanvas.on { display: block; }
/* off-lens top bar — pinned to the top of the page (phone-button height), spans the view width */
#hud-topbar {
  position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  width: min(96vw, 1180px); z-index: 6; pointer-events: none;
  display: flex; align-items: center; justify-content: flex-start; gap: 14px;
}
#hud-topbar button, #hud-topbar #help-panel { pointer-events: auto; }
#hud-controls { position: relative; flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
#world-label { flex: 0 0 auto; width: min(96vw, 1180px); font-size: 12.5px; letter-spacing: 0.02em; color: rgba(255,255,255,0.7); text-align: left; }

/* the square glanceable display, lower-right */
#display {
  position: absolute; right: 6%; bottom: 12%;
  width: min(30%, 340px); aspect-ratio: 1 / 1;
  background: transparent; border-radius: 14px; overflow: hidden;   /* see-through panel — real world behind shows through */
  container-type: inline-size;
  /* type system — Meta's Optimistic if present, else the closest system sans */
  font-family: "Optimistic Display", "SF Pro Display", "Segoe UI", Roboto, system-ui, sans-serif;
  --t-title: 6cqw; --t-lead: 5.2cqw; --t-body: 5cqw; --t-sub: 4.3cqw; --t-label: 3.3cqw;
  box-shadow: 0 10px 34px rgba(0,0,0,0.5), 0 0 22px rgba(74,158,255,0.18);
  transform-origin: bottom right; transition: transform 0.2s ease;
}
#dcanvas { position: absolute; inset: 0; width: 100%; height: 100%; }
/* blank/off default — the display shows nothing (no glow, badge, or content) */
#display.off { box-shadow: none; }
#display.off #mode-badge, #display.off #conn { display: none; }
#mode-badge {
  position: absolute; top: 3cqw; right: 3cqw; z-index: 4;
  display: inline-flex; align-items: center; gap: 1.6cqw;
  font-size: var(--t-label); letter-spacing: 0.01em; font-weight: 600; color: #f1f3f4;
  border: 1px solid rgba(255,255,255,0.16); border-radius: 999px; padding: 1cqw 2.8cqw 1cqw 1.8cqw;
  background: rgba(0,0,0,0.45);
}
/* Meta AI mark — conic-gradient ring */
#mode-badge .meta-mark {
  width: 4.2cqw; height: 4.2cqw; border-radius: 50%; flex: 0 0 auto;
  background: conic-gradient(from 200deg, #4dd7e0, #5b7cff, #a35cff, #ff5fa8, #4dd7e0);
  -webkit-mask: radial-gradient(circle, transparent 43%, #000 47%);
          mask: radial-gradient(circle, transparent 43%, #000 47%);
}
/* icons in list rows + camera button (monochrome, inherit text color) */
.opt-item .ic { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.opt-item .ic svg { width: 5.6cqw; height: 5.6cqw; }
.cam-btn svg { width: 5cqw; height: 5cqw; }
/* phone-connection status icon (top-left of the display) */
#display #conn { position: absolute; top: 3.4cqw; left: 3.4cqw; z-index: 4; display: flex; align-items: center; background: none; padding: 0; }
#display #conn svg { width: 4cqw; height: 4cqw; }
#display #conn.off { color: rgba(255,255,255,0.3); }
#display #conn.on { color: #34d17f; }
.disp-view {
  position: absolute; inset: 0; z-index: 2;
  display: flex; flex-direction: column; justify-content: center; padding: 5cqw 4.5cqw;
}
#idle { align-items: center; text-align: center; color: #e3e6ea; font-size: var(--t-sub); background: rgba(0,0,0,0.45); }
#menu, #kbview, #result, #chat { background: rgba(11,14,20,0.52); color: #fff; }   /* dark high-contrast surface, hints the world (waveguide) */
#menu, #chat, #kbview { justify-content: flex-end; }   /* cards + keyboard sit at the bottom of the display */
#kbview .kb-panel { border-radius: 4cqw; overflow: hidden; }   /* softer rounded keyboard on the HUD */
#kbview .kb-suggest { height: 10cqw; }                          /* more room for auto-suggestions */

/* Meta AI chat view — same look as the object action card (centered list + camera/input row) */
#chat { padding: 4cqw 4.5cqw; }                       /* inherits centered alignment from .disp-view */
.chat-head { flex: 0 0 auto; font-size: 4.4cqw; font-weight: 600; color: var(--accent); margin-bottom: 2.5cqw; }
.chat-thread { flex: 1 1 auto; overflow-y: auto; display: flex; flex-direction: column; gap: 2cqw; }
.chat-thread:empty { display: none; }                  /* empty home: collapse so the group centers like the menu */
.msg { max-width: 86%; padding: 2.2cqw 3cqw; border-radius: 3cqw; font-size: var(--t-sub); font-weight: 400; line-height: 1.35; word-break: break-word; }
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; }
.msg.ai { align-self: flex-start; background: rgba(255,255,255,0.15); color: #fff; }
.chat-defaults { flex: 0 0 auto; display: flex; flex-direction: column; gap: 2cqw; }   /* match #menu .opt-list */
.chat-row { flex: 0 0 auto; display: flex; align-items: center; gap: 2.5cqw; margin-top: 3cqw; }   /* match .query-row */

/* action card */
#menu .opt-list { display: flex; flex-direction: column; gap: 2cqw; }
.opt-item {
  display: flex; align-items: center; gap: 3cqw; padding: 2.8cqw 4cqw;
  border-radius: 3.6cqw; background: rgba(255,255,255,0.07); font-size: var(--t-body); font-weight: 500; color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);   /* hairline card edge on the transparent display */
}
.opt-item.active {                                       /* spatial-focus highlight */
  background: var(--accent); color: #fff;
  box-shadow: 0 0 5cqw rgba(74,158,255,0.55), inset 0 0 0 1px rgba(255,255,255,0.28);
}
#menu .query-row { display: flex; align-items: center; gap: 2.5cqw; margin-top: 3cqw; }
.cam-btn {
  flex: 0 0 auto; width: 11cqw; height: 11cqw; border-radius: 50%; font-size: 5cqw;
  display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,0.14);
}
.cam-btn.active { background: var(--accent); box-shadow: 0 0 5cqw rgba(74,158,255,0.55); }
.query-field {
  flex: 1; min-width: 0; background: rgba(255,255,255,0.1); border-radius: 999px;
  padding: 3.4cqw 4.5cqw; font-size: var(--t-sub); color: #fff;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.query-field.ph { color: rgba(255,255,255,0.45); }
.query-field.active { box-shadow: inset 0 0 0 0.6cqw var(--accent), 0 0 4cqw rgba(74,158,255,0.45); }
#result { text-align: center; font-size: var(--t-lead); font-weight: 500; line-height: 1.45; }
#result b { color: #fff; font-weight: 700; }

#textline {
  min-height: 8cqw; font-size: var(--t-title); font-weight: 600; line-height: 1.3; margin-bottom: 3cqw;
  border-bottom: 0.5cqw solid rgba(255,255,255,0.3); padding-bottom: 2cqw; word-break: break-word;
  color: #fff;
}
#caret { display: inline-block; width: 0.5cqw; height: 6cqw; background: var(--accent); vertical-align: text-bottom; animation: blink 1s step-start infinite; }
@keyframes blink { 50% { opacity: 0; } }
#disp-cap {
  position: absolute; left: 50%; bottom: 12px; transform: translateX(-50%); z-index: 3;
  font-size: 11px; color: rgba(255,255,255,0.6); background: rgba(0,0,0,0.35);
  padding: 5px 12px; border-radius: 999px; backdrop-filter: blur(6px); white-space: nowrap;
}
/* controls help — small toggle button + cheat-sheet panel */
#tour-btn {
  position: static; flex: 0 0 auto; cursor: pointer;
  height: 30px; padding: 0 14px; border-radius: 15px;
  border: 1px solid rgba(255,255,255,0.25); background: rgba(0,0,0,0.45);
  color: #eef1f6; font: 600 12.5px system-ui; letter-spacing: 0.2px; backdrop-filter: blur(4px);
}
#tour-btn:hover { background: rgba(20,40,70,0.7); border-color: #4a9eff; }

/* guided tour overlay — floats over the live HUD (doesn't block it) */
#tour { position: absolute; inset: 0; z-index: 30; pointer-events: none; }
#tour-spot {   /* bright white ring so it stands out from the display's own blue glow */
  position: absolute; border: 2.5px solid #fff; border-radius: 12px; pointer-events: none;
  box-shadow: 0 0 0 3px rgba(0,0,0,0.35), 0 0 20px rgba(255,255,255,0.75);
  animation: tour-pulse 1.4s ease-in-out infinite;   /* no position transition — the pin loop tracks the target directly */
}
@keyframes tour-pulse { 0%,100% { box-shadow: 0 0 0 3px rgba(0,0,0,0.35), 0 0 16px rgba(255,255,255,0.6); } 50% { box-shadow: 0 0 0 4px rgba(0,0,0,0.4), 0 0 30px rgba(255,255,255,0.95); } }
.tour-card {
  position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  width: min(360px, 68%); pointer-events: auto;
  background: rgba(16,19,26,0.94); border: 1px solid rgba(255,255,255,0.12); border-radius: 16px;
  padding: 14px 16px 12px; box-shadow: 0 18px 50px rgba(0,0,0,0.6); color: #eef1f6;
  font-family: -apple-system, system-ui, sans-serif;
}
.tour-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.tour-mod {
  font: 700 10px system-ui; letter-spacing: 0.1em; text-transform: uppercase;
  color: #9fc6ff; background: rgba(74,158,255,0.16); padding: 3px 8px; border-radius: 999px;
}
.tour-count { font: 600 11px system-ui; color: rgba(255,255,255,0.5); }
.tour-title { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.tour-body { font-size: 13px; line-height: 1.5; color: rgba(255,255,255,0.82); }
.tour-map { margin: 11px 0 12px; display: flex; flex-direction: column; gap: 6px; }
.tour-row { display: flex; align-items: baseline; gap: 10px; font-size: 12.5px; }
.tour-row .tl { flex: 0 0 42px; font: 700 10px system-ui; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255,255,255,0.45); }
.tour-real { color: rgba(255,255,255,0.72); font-style: italic; }
.tour-proxy { color: #cfe4ff; font-weight: 600; }
.tour-btns { display: flex; align-items: center; justify-content: space-between; }
.tour-btns button {
  cursor: pointer; border-radius: 9px; font: 600 12px system-ui; padding: 7px 12px;
  border: 1px solid rgba(255,255,255,0.16); background: rgba(255,255,255,0.06); color: #e8eaed;
}
.tour-nav { display: inline-flex; gap: 8px; }
.tour-skip { color: rgba(255,255,255,0.55) !important; }
.tour-next { background: #2f6fe0 !important; border-color: transparent !important; color: #fff !important; }
.tour-btns button:hover { filter: brightness(1.15); }
.tour-prev:disabled { opacity: 0.35; cursor: default; }

/* mode hub — the walkthrough's entry: briefly present each modality, pick one to see it in detail */
#tour-hub { position: absolute; inset: 0; z-index: 31; display: flex; align-items: center; justify-content: center;
  background: rgba(5,7,11,0.62); backdrop-filter: blur(4px); pointer-events: auto; }
#tour-hub.hidden { display: none; }
.th-card { width: min(94%, 400px); max-height: 94%; overflow-y: auto; background: rgba(16,20,27,0.97);
  border: 1px solid rgba(255,255,255,0.12); border-radius: 16px; padding: 18px 18px; box-shadow: 0 20px 60px rgba(0,0,0,0.6); }
.th-h { font-size: 19px; font-weight: 700; line-height: 1.25; }
.th-sub { font-size: 14px; color: rgba(255,255,255,0.62); margin: 6px 0 15px; line-height: 1.5; }
.th-sub b { color: rgba(255,255,255,0.9); font-weight: 700; }
.th-modes { display: flex; flex-direction: column; gap: 10px; }
.th-mode { text-align: left; background: #151a22; border: 1px solid rgba(255,255,255,0.1); border-radius: 12px;
  padding: 13px 15px; cursor: pointer; color: #eef2f7; font: inherit; transition: .15s; }
.th-mode:hover { border-color: #4a9eff; background: #182231; }
.tm-top { display: flex; align-items: center; justify-content: space-between; }
.tm-name { font-size: 16.5px; font-weight: 700; color: #9cc6ff; }
.th-mode[data-group="bci"] .tm-name { color: #c9a6ff; }
.th-mode[data-group="phone"] .tm-name { color: #8fe9dc; }
.tm-arrow { font-size: 19px; color: rgba(255,255,255,0.3); }
.th-mode:hover .tm-arrow { color: #4a9eff; }
.tm-desc { font-size: 14px; color: #dbe2ea; margin: 6px 0 6px; line-height: 1.45; }
.tm-solves { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.45; }
.tm-solves b { color: rgba(255,255,255,0.8); font-weight: 700; }
.th-close { margin-top: 15px; width: 100%; background: none; border: 1px solid rgba(255,255,255,0.16);
  color: rgba(255,255,255,0.62); border-radius: 10px; padding: 10px; font: inherit; font-size: 14px; cursor: pointer; }
.th-close:hover { border-color: rgba(255,255,255,0.35); color: #fff; }

#help-btn {
  position: static; flex: 0 0 auto;
  width: 30px; height: 30px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.25); background: rgba(0,0,0,0.4);
  color: rgba(255,255,255,0.85); font: 600 15px system-ui; backdrop-filter: blur(4px);
}
#help-btn:hover { background: rgba(0,0,0,0.6); color: #fff; }
#feed-switch {
  position: static; flex: 0 0 auto; display: inline-flex; align-items: center; gap: 2px;
  height: 30px; padding: 2px; border-radius: 15px; border: 1px solid rgba(255,255,255,0.25);
  background: rgba(0,0,0,0.4); backdrop-filter: blur(4px);
}
#feed-switch button {
  border: none; cursor: pointer; height: 100%; padding: 0 12px; border-radius: 13px;
  background: transparent; color: rgba(255,255,255,0.68); font: 600 12.5px system-ui; letter-spacing: 0.2px;
  white-space: nowrap; transition: background 0.15s, color 0.15s;
}
#feed-switch button.active { background: #fff; color: #14171d; }
#feed-switch button:not(.active):hover { color: #fff; }
#feed-toggle.on { border-color: #4a9eff; color: #cfe4ff; background: rgba(20,40,70,0.5); }
#help-panel {
  position: absolute; left: 0; top: calc(100% + 10px); z-index: 7; max-width: 360px;
  background: rgba(18,20,26,0.92); border: 1px solid rgba(255,255,255,0.12); border-radius: 14px;
  padding: 14px 16px; color: #e8eaed; backdrop-filter: blur(10px); box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.help-title { font-size: 13px; font-weight: 700; letter-spacing: 0.04em; margin-bottom: 11px; color: #fff; }
.help-grid { display: flex; flex-direction: column; gap: 9px; }
.help-h { font-size: 10px; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; color: #8ab4f8; margin-top: 2px; }
.help-rows { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 12px; color: #cdd1d6; }
.help-rows span { display: inline-flex; align-items: center; gap: 4px; }
kbd {
  display: inline-flex; align-items: center; justify-content: center; min-width: 15px; height: 18px;
  padding: 0 5px; border-radius: 5px; background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2); font: 600 11px system-ui; color: #fff;
}

/* BCI — SSVEP flickering targets + number badges */
@keyframes ssvep-flick { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.ssvep { position: relative; }
.ssvep1 { animation: ssvep-flick 0.14s linear infinite; }   /* ~7.5 Hz */
.ssvep2 { animation: ssvep-flick 0.10s linear infinite; }   /* 10 Hz */
.ssvep3 { animation: ssvep-flick 0.083s linear infinite; }  /* 12 Hz */
.ssvep4 { animation: ssvep-flick 0.067s linear infinite; }  /* 15 Hz */
.ssvep::after {
  content: attr(data-ssvep);
  position: absolute; top: 50%; right: 2.5cqw; transform: translateY(-50%);
  width: 4.6cqw; height: 4.6cqw; border-radius: 50%;
  background: var(--accent); color: #fff; font-size: 3cqw; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.cam-btn.ssvep::after { top: -0.5cqw; right: -0.5cqw; transform: none; }   /* badge outside the round camera button */

/* SSVEP lock — number-key starts a fill that builds then commits */
.ssvep-lock { position: relative; }
.ssvep-lock::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: var(--fill, 0%);
  background: rgba(74, 158, 255, 0.6); border-radius: inherit; pointer-events: none; z-index: 2;
}

/* ============================ PHONE PAGE ============================ */
body.phone-page { background: #08090b; height: 100vh; display: flex; align-items: center; justify-content: center; }
/* realistic metal frame — diagonal light reflection down the rails */
#device {
  padding: 5px; border-radius: 51px;
  background:
    linear-gradient(140deg, #4a4d53 0%, #1b1c20 24%, #0d0e10 50%, #1b1c20 76%, #4a4d53 100%);
  box-shadow: 0 32px 84px rgba(0,0,0,0.78), inset 0 0 0 1px rgba(255,255,255,0.06);
}
#phone {
  position: relative; aspect-ratio: 9 / 20; height: min(92vh, 838px); width: auto; max-width: 92vw;
  border-radius: 46px; overflow: hidden;
  background:
    radial-gradient(70% 45% at 16% 10%, rgba(129,97,230,0.38) 0%, transparent 52%),
    radial-gradient(65% 45% at 90% 20%, rgba(56,138,240,0.34) 0%, transparent 50%),
    radial-gradient(80% 55% at 82% 86%, rgba(38,182,150,0.30) 0%, transparent 52%),
    radial-gradient(60% 45% at 22% 74%, rgba(224,92,158,0.24) 0%, transparent 52%),
    linear-gradient(160deg, #14121a, #0d0e12);
  box-shadow: inset 0 0 0 3px #08090b, inset 0 0 2px 4px rgba(255,255,255,0.04);  /* thin black screen bezel + glass edge */
  color: #e8eaed; font-family: "Google Sans", "Roboto", system-ui, sans-serif;
}
/* punch-hole front camera */
#phone::before {
  content: ""; position: absolute; top: 11px; left: 50%; transform: translateX(-50%); z-index: 10;
  width: 11px; height: 11px; border-radius: 50%; background: #050506;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.14);
}
/* status bar */
#statusbar {
  position: absolute; top: 0; left: 0; right: 0; height: 34px; z-index: 8;
  display: flex; align-items: center; justify-content: space-between; padding: 0 22px; pointer-events: none;
}
.sb-time { font-size: 14px; font-weight: 600; letter-spacing: 0.2px; }
.sb-icons { display: flex; align-items: center; gap: 6px; }
.sbi { height: 13px; fill: #e8eaed; }
/* connection chip */
body.phone-page #conn {
  position: absolute; top: 42px; left: 50%; transform: translateX(-50%); z-index: 7;
  display: inline-flex; align-items: center; justify-content: center; line-height: 1;
  font-size: 11px; font-weight: 600; padding: 5px 12px; border-radius: 999px;
  background: rgba(255,255,255,0.1); color: #9aa0a6; backdrop-filter: blur(4px);
}
body.phone-page #conn.on { color: #81c995; }
/* home "At a Glance" clock */
#home-clock {
  position: absolute; top: 13%; left: 0; right: 0; z-index: 3; text-align: center; pointer-events: none;
  color: #f1f3f4; text-shadow: 0 2px 14px rgba(0,0,0,0.35);
}
.hc-time { font-size: 60px; font-weight: 400; letter-spacing: -1px; line-height: 1; }
.hc-date { font-size: 15px; font-weight: 500; margin-top: 8px; color: #e2e5ea; }
/* Meta control — Material FAB */
#float-icon {
  position: absolute; right: 22px; bottom: 96px; width: 62px; height: 62px; border-radius: 20px;
  border: none; cursor: pointer; background: #2c3f5a;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(0,0,0,0.45), 0 1px 3px rgba(0,0,0,0.4);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
#float-icon svg { width: 30px; height: 30px; color: #a8c7fa; }
#float-icon:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(0,0,0,0.26); }
#float-icon:active { transform: scale(0.96); }

/* control surface — Material bottom sheet */
#surface {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 6;
  display: flex; flex-direction: column;
  background: #1e1f22; border-radius: 26px 26px 0 0;
  box-shadow: 0 -10px 34px rgba(0,0,0,0.5); padding: 8px 0 20px;
}
.ctrl-row { display: flex; gap: 10px; padding: 4px 12px 8px; }
.ctrl-btn {
  position: relative;   /* chevrons are pinned to the edges so the label sits at true center */
  flex: 1; background: #2d2f34; color: #dfe3e8; border-radius: 22px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  padding: 8px 4px; min-height: 46px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.35);
  touch-action: none; user-select: none; transition: background 0.12s ease, transform 0.1s ease;
}
.ctrl-btn:hover { background: #35373c; }
.ctrl-btn:active, .ctrl-btn.flash { background: var(--accent); color: #fff; transform: scale(0.97); }
.ctrl-lbl { font-size: 11.5px; font-weight: 600; letter-spacing: 0.09em; text-align: center; }
.chev { width: 15px; height: 15px; opacity: 0.5; }
.chev path { fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.dpad .chev { position: absolute; }
.dpad .up    { top: 5px;   left: 50%; transform: translateX(-50%); }
.dpad .down  { bottom: 5px; left: 50%; transform: translateX(-50%); }
.dpad .left  { left: 8px;  top: 50%; transform: translateY(-50%); }
.dpad .right { right: 8px; top: 50%; transform: translateY(-50%); }
#scroll-btn .ctrl-lbl { font-size: 10.5px; letter-spacing: 0.03em; }   /* NAVIGATE is longer — keep it clear of the chevrons */
.phone-text {
  margin: 4px 16px 8px; min-height: 24px; font-size: 16px; color: #e8eaed;
  border-bottom: 1.5px solid rgba(255,255,255,0.16); padding-bottom: 6px; word-break: break-word;
}
/* controls: a "?" toggle on the surface reveals a compact card (matches the HUD cheat-sheet) */
#phone-help-btn {   /* floats just above the surface's top-right, outside the sheet */
  position: absolute; top: -42px; right: 14px; z-index: 6;
  width: 30px; height: 30px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.18); background: rgba(30,31,34,0.8); backdrop-filter: blur(6px);
  color: #d6d9de; font: 600 14px system-ui; line-height: 1; padding: 0;
}
#phone-help-btn.on { background: var(--accent); color: #fff; border-color: transparent; }
#phone-help {
  position: absolute; bottom: 100%; left: 12px; right: 12px; margin-bottom: 50px;
  background: #26282d; border: 1px solid rgba(255,255,255,0.09); border-radius: 14px;
  padding: 11px 14px; box-shadow: 0 -8px 26px rgba(0,0,0,0.45);
  display: flex; flex-direction: column; gap: 8px;
}
#phone-help .ph-row { display: flex; align-items: baseline; gap: 12px; }
#phone-help .ph-row b { flex: 0 0 62px; color: #e8eaed; font: 700 10.5px system-ui; letter-spacing: 0.08em; }
#phone-help .ph-row span { font-size: 12px; color: #9aa0a6; }
/* gesture-navigation pill */
#navpill {
  position: absolute; left: 50%; bottom: 8px; transform: translateX(-50%); z-index: 9;
  width: 36%; height: 5px; border-radius: 999px; background: rgba(232,234,237,0.55);
}

/* ===================== Gboard-style keyboard (shared) ===================== */
/* Gboard light theme: gray panel, flat borderless keys, uppercase letters,
   a suggestion strip on top, blue glide ribbon. Sized in cqw for the HUD;
   the phone overrides with px touch targets (.kb--live / .phone-page). */
.kb-panel { background: #1b1c1f; padding: 2cqw 1.5cqw 1.5cqw; }
.kb-suggest {
  display: flex; align-items: center; height: 7cqw; color: #bdc1c6; font-size: 3.8cqw;
}
.kb-suggest .sugg {
  flex: 1; text-align: center; padding: 0 6px; min-width: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-right: 1px solid rgba(255,255,255,0.12);
}
.kb-suggest .sugg:last-child { border-right: none; }
.kb-suggest .sugg.strong { color: #e8eaed; font-weight: 600; }

.kb { display: flex; flex-direction: column; gap: 2cqw; }
.kb-row { display: flex; gap: 1.6cqw; justify-content: center; }
.kb-key {
  flex: 1; display: flex; align-items: center; justify-content: center;
  background: #3a3b40; border-radius: 1.2cqw; font-size: 5cqw; color: #e8eaed;
  box-shadow: 0 0.3cqw 0 rgba(0,0,0,0.35); padding: 2.6cqw 0; min-width: 0;
}
.kb-key--fn, .kb-key--sym { background: #292a2e; color: #e8eaed; flex: 1.4; font-size: 3.8cqw; }
.kb-key--space { flex: 5; }
.kb-key--return { flex: 1.6; }
.kb-key--punct { flex: 0.8; }
.kb-key.hover, .kb-key.hl { background: var(--accent); color: #fff; }   /* demo hover highlight */

#kb-wrap, #hud-kb-wrap { position: relative; }
#kb-trail, #hud-kb-trail { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 3; }
#kb-trail polyline, #hud-kb-trail polyline {
  fill: none; stroke: rgba(66,133,244,0.65); stroke-width: 7;   /* Gboard blue glide ribbon */
  stroke-linecap: round; stroke-linejoin: round;
}

/* phone's live keyboard: px touch targets */
.phone-page .kb-panel { padding: 8px 6px 12px; }
.phone-page .kb-suggest { height: 40px; font-size: 15px; }
.kb--live { gap: 6px; container-type: normal; }
.kb--live .kb-row { gap: 5px; }
.kb--live .kb-key {
  font-size: 18px; border-radius: 7px; padding: 8px 0; min-height: 34px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.12); touch-action: none;
}
.kb--live .kb-key--fn, .kb--live .kb-key--sym { font-size: 14px; }
#phone-kb { touch-action: none; }

/* phone keyboard keeps px key shadow on the dark theme */
.kb--live .kb-key { box-shadow: 0 1px 0 rgba(0,0,0,0.4); }

/* ============================ shared bits ============================ */
.hidden { display: none !important; }
#conn {
  position: absolute; z-index: 6; right: 14px; top: 12px;
  font-size: 11px; font-weight: 600; padding: 3px 9px; border-radius: 999px;
}
#conn.on { color: #1f9d55; }
#conn.off { opacity: 0.5; }