/* KI-Quadrant — Symbics look: cool graphite neutrals, one Signal-Mint accent. */

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 400 var(--t-body)/var(--lh-body) var(--font-body);
}

h1, h2 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: var(--lh-snug);
  margin: 0 0 var(--sp-3);
}
h1 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.5rem); }
h2 { font-size: var(--t-h4); }

a { color: var(--sym-mint-deep); }
code { font-family: var(--font-mono); font-size: 0.9em; background: var(--bg-sunk); padding: 1px 6px; border-radius: var(--r-xs); }

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

.eyebrow, .bar-eyebrow, .kq-qlabel, .kq-tick, .kq-axis-title, .live-label, .pill, kbd {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.eyebrow { font-size: var(--t-cap); color: var(--sym-mint-deep); margin: 0 0 var(--sp-2); font-weight: 500; }
.lead { color: var(--text-soft); margin: 0 0 var(--sp-5); }

/* ---------------------------------------------------------------- frame */

.bar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  padding-top: max(var(--sp-3), env(safe-area-inset-top));
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.bar-brand { font: 600 1.125rem/1 var(--font-display); letter-spacing: -0.01em; }
.bar-eyebrow { font-size: var(--t-cap); color: var(--text-mute); margin-left: var(--sp-2); }
.bar-end { margin-left: auto; }

.wrap {
  flex: 1;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding: var(--sp-5) var(--sp-4) var(--sp-6);
}
.wrap--wide { max-width: 960px; }

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-2) var(--sp-4);
  padding: var(--sp-4);
  padding-bottom: max(var(--sp-4), env(safe-area-inset-bottom));
  background: var(--sym-ink);
  color: var(--n-300);
  font-size: var(--t-sm);
}
.foot strong { color: #fff; font-family: var(--font-display); }
.foot-links { display: flex; gap: var(--sp-4); }
.foot a { color: var(--n-200); }

/* ---------------------------------------------------------------- controls */

input[type="text"], input[type="password"], input:not([type]) {
  width: 100%;
  font: 500 1.125rem/1.3 var(--font-body);
  padding: 14px 16px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm, 8px);
  background: var(--surface);
  color: var(--text);
}
input:focus { outline: none; border-color: var(--sym-mint-deep); box-shadow: 0 0 0 4px var(--sym-mint-glow); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: 44px;
  padding: 10px 18px;
  font: 600 var(--t-body)/1 var(--font-body);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm, 8px);
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { border-color: var(--n-400); }
.btn:focus-visible, .chip:focus-visible { outline: 3px solid var(--sym-mint); outline-offset: 2px; }
.btn-primary { background: var(--sym-ink); color: #fff; border-color: var(--sym-ink); }
.btn-primary:hover { background: var(--n-700); }
.btn-primary:disabled { background: var(--n-200); border-color: var(--n-200); color: var(--n-500); cursor: default; }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--s-error); }
.btn-block { width: 100%; min-height: 54px; font-size: 1.0625rem; }

.msg { margin: var(--sp-3) 0; padding: var(--sp-3) var(--sp-4); border-radius: var(--r-sm, 8px); font-size: var(--t-sm); }
.msg-error { background: var(--s-error-soft); color: #8E2B28; }
.msg-ok { background: var(--sym-mint-soft); color: #035C45; }
.notice { padding: var(--sp-4); background: var(--s-warning-soft); border-radius: var(--r-sm, 8px); }

.pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 500;
  background: var(--n-100);
  color: var(--n-600);
}
.pill--open { background: var(--sym-mint-soft); color: #035C45; }
.pill--closed { background: var(--n-700); color: var(--n-100); }

/* ---------------------------------------------------------------- participant */

.join-form { display: grid; gap: var(--sp-3); }
.join-form .btn { min-height: 54px; }

.board-host { margin: 0 0 var(--sp-3); }
.p-participant .board-host { max-width: min(100%, calc(100svh - 260px)); margin-inline: auto; min-width: 280px; }

.actions {
  position: sticky;
  bottom: 0;
  padding: var(--sp-3) 0 max(var(--sp-3), env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--bg) 70%, transparent);
}

.privacy { margin-top: var(--sp-6); font-size: var(--t-cap); color: var(--text-mute); line-height: 1.5; }

/* ---------------------------------------------------------------- board */

.kq-board {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 6px 8px;
  --kq-plot-bg: var(--surface);
  --kq-line: var(--n-100);
  --kq-axis: var(--n-300);
  --kq-label: var(--n-500);
  --kq-tick: var(--n-400);
}

.kq-yaxis { display: flex; gap: 4px; }
.kq-yticks { display: flex; flex-direction: column; justify-content: space-between; text-align: right; }
.kq-axis-title { font-size: 0.625rem; font-weight: 600; color: var(--kq-label); }
.kq-axis-title--y { writing-mode: vertical-rl; transform: rotate(180deg); text-align: center; }
.kq-axis-title--x { display: block; text-align: center; margin-top: 4px; }
.kq-tick { font-size: 0.5625rem; color: var(--kq-tick); line-height: 1.2; }

.kq-xticks { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; gap: 4px; }

.kq-plot {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  border: 1px solid var(--kq-axis);
  border-radius: var(--r-xs);
  background-color: var(--kq-plot-bg);
  background-image:
    linear-gradient(to right, var(--kq-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--kq-line) 1px, transparent 1px);
  background-size: 12.5% 12.5%;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.kq-plot:focus-visible { outline: 3px solid var(--sym-mint); outline-offset: 3px; }

.kq-cell { position: relative; display: flex; padding: 8px; }
.kq-cell--top_left { align-items: flex-start; justify-content: flex-start; }
.kq-cell--top_right { align-items: flex-start; justify-content: flex-end; }
.kq-cell--bottom_left { align-items: flex-end; justify-content: flex-start; }
.kq-cell--bottom_right { align-items: flex-end; justify-content: flex-end; }
.kq-qlabel { font-size: 0.625rem; font-weight: 600; color: var(--kq-label); }

.kq-share {
  display: none;
  position: absolute;
  inset: 0;
  place-items: center;
  font: 600 clamp(2rem, 6vw, 5.5rem)/1 var(--font-display);
  letter-spacing: -0.03em;
  color: var(--kq-label);
  opacity: 0.4;
}
.show-shares .kq-share { display: grid; }

.kq-axisline { position: absolute; background: var(--kq-axis); pointer-events: none; }
.kq-axisline--v { left: 50%; top: 0; bottom: 0; width: 1px; }
.kq-axisline--h { top: 50%; left: 0; right: 0; height: 1px; }

.kq-density, .kq-dots { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; transition: opacity 0.3s; }
.is-hidden .kq-dots, .is-hidden .kq-density { opacity: 0; }

.kq-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--sym-mint);
  transform: translate(-50%, -50%);
  transition: left 0.6s ease, top 0.6s ease;
}

.kq-dot--own {
  width: 26px;
  height: 26px;
  border: 4px solid var(--sym-ink);
  box-shadow: 0 0 0 8px var(--sym-mint-glow);
  transition: none;
}

.kq-dot--live { box-shadow: 0 0 0 5px rgba(20, 224, 160, 0.18), 0 0 18px rgba(20, 224, 160, 0.45); }
.kq-dot--live.is-new { animation: kq-pop 0.9s ease-out; }
@keyframes kq-pop {
  0% { transform: translate(-50%, -50%) scale(0); box-shadow: 0 0 0 0 rgba(20, 224, 160, 0.7); }
  60% { transform: translate(-50%, -50%) scale(1.5); box-shadow: 0 0 0 22px rgba(20, 224, 160, 0); }
  100% { transform: translate(-50%, -50%) scale(1); }
}

.kq-median {
  width: 36px;
  height: 36px;
  background: transparent;
  border: 2px dashed #fff;
  z-index: 2;
}
.kq-median::before, .kq-median::after { content: ""; position: absolute; background: #fff; }
.kq-median::before { left: 50%; top: -10px; bottom: -10px; width: 1px; }
.kq-median::after { top: 50%; left: -10px; right: -10px; height: 1px; }

@media (prefers-reduced-motion: reduce) {
  .kq-dot { transition: none; }
  .kq-dot--live.is-new { animation: none; }
}

/* ---------------------------------------------------------------- live (projector) */

.p-live { background: var(--sym-ink); color: #fff; }

.live {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  min-height: 100vh;
}

.live-stage { display: grid; place-items: center; padding: 3vh 3vw; position: relative; }

.kq-board--live {
  --kq-plot-bg: #121820;
  --kq-line: rgba(255, 255, 255, 0.045);
  --kq-axis: rgba(255, 255, 255, 0.28);
  --kq-label: var(--n-300);
  --kq-tick: var(--n-400);
  gap: 10px 14px;
}
.kq-board--live .kq-plot { width: min(calc(100vw - 340px - 6vw - 90px), calc(100vh - 6vh - 80px)); }
.kq-board--live .kq-qlabel { font-size: clamp(0.75rem, 1.1vw, 1.125rem); padding: 6px; }
.kq-board--live .kq-tick { font-size: clamp(0.6875rem, 0.85vw, 0.9375rem); }
.kq-board--live .kq-axis-title { font-size: clamp(0.75rem, 0.95vw, 1rem); color: #fff; }
.kq-board--live .kq-dot--live { width: clamp(14px, 1.3vw, 24px); height: clamp(14px, 1.3vw, 24px); }

.live-connection {
  position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  margin: 0; padding: 6px 14px; border-radius: 999px;
  background: var(--s-warning); color: var(--sym-ink); font-size: var(--t-sm);
}

.live-side {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-5);
  background: var(--n-800);
  border-left: 1px solid var(--n-700);
}
.live-brand { display: flex; align-items: center; gap: var(--sp-2); font: 600 1.125rem/1 var(--font-display); }
.live-title { font-size: 1.375rem; margin: 0; color: #fff; }

.live-join { background: #fff; color: var(--sym-ink); border-radius: var(--r-md, 12px); padding: var(--sp-4); text-align: center; }
.live-qr { display: block; width: 100%; max-width: 240px; height: auto; margin: 0 auto var(--sp-2); image-rendering: pixelated; }
.live-label { margin: var(--sp-2) 0 0; font-size: 0.6875rem; color: var(--n-500); }
.live-url { margin: 0; font: 600 1.0625rem/1.3 var(--font-mono); word-break: break-all; }
.live-keyword { margin: 0; font: 700 2rem/1.1 var(--font-display); letter-spacing: -0.01em; color: var(--sym-ink); }

.live-count { display: flex; align-items: baseline; gap: var(--sp-2); }
.live-count-n { font: 700 3.5rem/1 var(--font-display); color: var(--sym-mint); letter-spacing: -0.03em; }
.live-count-label { color: var(--n-300); }

.p-live .live-side p { margin: 0; }
.p-live .btn-primary { background: var(--sym-mint); color: var(--sym-ink); border-color: var(--sym-mint); }
.p-live .btn-primary:hover { background: #3BEAB4; }

.live-controls { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; min-height: 36px;
  font: 500 var(--t-sm)/1 var(--font-body);
  color: var(--n-200); background: transparent;
  border: 1px solid var(--n-600); border-radius: 999px; cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--sym-mint); color: var(--sym-ink); border-color: var(--sym-mint); }
kbd { font-size: 0.625rem; opacity: 0.6; }

.live-links { margin-top: auto !important; font-size: var(--t-sm); color: var(--n-400); }
.live-links a { color: var(--n-200); }

.p-live .foot { display: none; }

@media (max-width: 900px) {
  .live { grid-template-columns: 1fr; }
  .kq-board--live .kq-plot { width: min(calc(100vw - 6vw - 60px), 80vh); }
  .live-side { border-left: 0; border-top: 1px solid var(--n-700); }
}

/* ---------------------------------------------------------------- admin */

.stack { display: grid; gap: var(--sp-3); max-width: 360px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md, 12px); padding: var(--sp-5); margin-bottom: var(--sp-4); }
.create-form { display: grid; grid-template-columns: 2fr 1fr auto; gap: var(--sp-3); align-items: end; }
.create-form label span { display: block; font-size: var(--t-sm); color: var(--text-soft); margin-bottom: 4px; }
.create-form input { font-size: 1rem; padding: 10px 12px; }
.create-form .btn { min-height: 46px; }

.session-head { display: flex; justify-content: space-between; gap: var(--sp-4); align-items: flex-start; }
.session-head h2 { margin-bottom: var(--sp-2); }
.session-meta { margin: 0; font-size: var(--t-sm); color: var(--text-soft); display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.session-points { margin: 0; white-space: nowrap; color: var(--text-soft); }
.session-points strong { font: 700 1.75rem/1 var(--font-display); color: var(--text); }
.session-quadrants { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-2); margin: var(--sp-4) 0 0; }
.session-quadrants div { background: var(--bg-sunk); border-radius: var(--r-xs); padding: var(--sp-2) var(--sp-3); }
.session-quadrants dt { font: 500 0.625rem/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-mute); }
.session-quadrants dd { margin: 2px 0 0; font-weight: 600; }
.session-link { font-size: var(--t-sm); color: var(--text-soft); word-break: break-all; margin: var(--sp-3) 0; }
.session-actions { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.session-actions .btn { min-height: 40px; padding: 8px 14px; font-size: var(--t-sm); }
form.inline { display: inline; }

@media (max-width: 640px) {
  .create-form { grid-template-columns: 1fr; }
  .session-quadrants { grid-template-columns: repeat(2, 1fr); }
}