:root {
  --qz-right:      var(--clr-accent);
  --qz-right-bg:   rgba(30,155,255,0.09);
  --qz-right-line: rgba(30,155,255,0.35);
  --qz-wrong:      #f87171;
  --qz-wrong-bg:   rgba(248,113,113,0.09);
  --qz-wrong-line: rgba(248,113,113,0.32);
  --qz-streak:     #ff9040;
  --qz-lock:       var(--clr-text-dim);
  --qz-amp:        1;
  --qz-tap:        56px;
}

[data-theme="light"] {
  --qz-right-bg:   rgba(10,104,214,0.09);
  --qz-right-line: rgba(10,104,214,0.32);
  --qz-wrong:      #dc2626;
  --qz-wrong-bg:   rgba(220,38,38,0.07);
  --qz-wrong-line: rgba(220,38,38,0.28);
  --qz-streak:     #ea7317;
}


.qz-header {
  position: relative;
  padding: 4.5rem 0 2.5rem;
  overflow: hidden;
}
.qz-header-bg { position: absolute; inset: 0; z-index: 0; }
.qz-header-inner { position: relative; z-index: 1; }

.qz-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 0.5rem 0 1rem;
}
.qz-hero-sub {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin: 0;
  max-width: 52ch;
}


.qz-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.875rem;
  margin-top: 2rem;
}

.qz-stat {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.125rem;
  box-shadow: var(--shadow-card);
}
.qz-stat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: var(--radius-md);
  background: var(--qz-right-bg);
  border: 1px solid var(--qz-right-line);
  color: var(--clr-accent);
}
.qz-stat-icon.is-streak {
  background: rgba(255,144,64,0.1);
  border-color: rgba(255,144,64,0.28);
  color: var(--qz-streak);
}
.qz-stat-icon.is-level {
  background: rgba(43,111,224,0.14);
  border-color: rgba(43,111,224,0.3);
  color: #8cc4ff;
}
.qz-stat-icon.is-done {
  background: rgba(108,200,255,0.1);
  border-color: rgba(108,200,255,0.28);
  color: var(--clr-accent-2);
}
.qz-stat-body { min-width: 0; }
.qz-stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.05;
  color: var(--clr-text);
}
.qz-stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  margin-top: 0.2rem;
}

.qz-max-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #0a0e14;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  padding: 0.1rem 0.4rem;
  border-radius: 99px;
  vertical-align: middle;
  position: relative;
  top: -0.1rem;
}

.qz-stat-meter {
  height: 3px;
  background: var(--clr-surface-2);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 0.45rem;
}
.qz-stat-meter span {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  transition: width 0.6s var(--ease-out);
}


.qz-guest {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-left: 3px solid var(--clr-accent);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.125rem;
  margin-top: 1.5rem;
}
.qz-guest svg { color: var(--clr-accent); flex-shrink: 0; }
.qz-guest p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
}
.qz-guest strong { color: var(--clr-text); }
.qz-guest a {
  color: var(--clr-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.qz-guest--top { margin-top: 0; margin-bottom: 1.75rem; }


.qz-tracks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.qz-track {
  --cc: var(--clr-accent);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.625rem;
  position: relative;
  overflow: hidden;
  color: var(--clr-text);
  transition: transform 0.3s var(--ease-out), border-color 0.3s, box-shadow 0.3s;
}
.qz-track::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--cc);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}
.qz-track:hover {
  transform: translateY(-6px);
  border-color: var(--clr-border-2);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35), 0 1px 0 rgba(255,255,255,0.04) inset;
}
.qz-track:hover::before { transform: scaleX(1); }
[data-theme="light"] .qz-track:hover { box-shadow: 0 12px 40px rgba(13,16,35,0.13); }

.qz-track-top {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.qz-track-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: var(--radius-md);
  border: 1px solid;
  flex-shrink: 0;
  overflow: hidden;
}
.qz-track-icon svg { width: 26px !important; height: 26px !important; }

.qz-track-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 0 0 0.375rem;
  transition: color 0.2s;
}
.qz-track:hover .qz-track-title { color: var(--cc); }
.qz-track-desc {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin: 0;
}

.qz-track-meter {
  height: 6px;
  background: var(--clr-surface-2);
  border-radius: 99px;
  overflow: hidden;
}
.qz-track-meter span {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: var(--cc);
  transition: width 0.6s var(--ease-out);
}

.qz-track-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--clr-border);
}
.qz-track-count {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--clr-text-muted);
}
.qz-track-go {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cc);
}
.qz-track:hover .qz-track-go svg { transform: translateX(4px); }
.qz-track-go svg { transition: transform 0.25s var(--ease-out); }

.qz-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.6rem;
  border-radius: 99px;
  border: 1px solid;
}


.qz-path {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.qz-step {
  position: relative;
  display: flex;
  justify-content: center;
  margin-bottom: 2.25rem;
  transform: translateX(calc(var(--dx, 0px) * var(--qz-amp)));
}
.qz-step:last-child { margin-bottom: 0; }

.qz-step:not(:first-child)::before {
  content: '';
  position: absolute;
  top: calc(-0.15rem - var(--qz-conn-len-full, 1.95rem));
  left: 50%;
  width: 4px;
  height: var(--qz-conn-len-full, 1.95rem);
  border-radius: 99px;
  transform-origin: 50% 100%;
  transform: translateX(-50%) rotate(var(--qz-conn-angle-full, 0deg));
  background-image: linear-gradient(var(--clr-border-2) 55%, transparent 0);
  background-size: 4px 9px;
  background-repeat: repeat-y;
}
.qz-step.is-linked::before {
  background-image: linear-gradient(var(--qz-right-line) 55%, transparent 0);
}

.qz-path-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  z-index: 0;
}
.qz-path.has-curve .qz-step::before { display: none; }
.qz-path-svg .qz-curve-done {
  fill: none;
  stroke: var(--clr-accent);
  stroke-width: 4;
  stroke-linecap: round;
  filter: drop-shadow(0 0 6px rgba(30,155,255,0.45));
}
.qz-path-svg .qz-curve-todo {
  fill: none;
  stroke: var(--clr-border-2);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 2 13;
}

.qz-node {
  z-index: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  width: 132px;
  text-align: center;
  color: var(--clr-text);
}

.qz-node-dot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--clr-surface-2);
  border: 2px solid var(--clr-border-2);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s, background 0.3s, border-color 0.3s;
}
.qz-node-dot svg { width: 28px; height: 28px; }

.qz-node-label {
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--clr-text);
  min-height: calc(1.3em * 2);
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.qz-node-sub {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
}

.qz-node.is-done .qz-node-dot {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #0a0e14;
  box-shadow: 0 6px 18px rgba(30,155,255,0.28);
}
[data-theme="light"] .qz-node.is-done .qz-node-dot { color: #fff; }
.qz-node.is-done:hover .qz-node-dot { transform: translateY(-3px) scale(1.04); }

.qz-node.is-current .qz-node-dot {
  background: var(--clr-surface);
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  box-shadow: 0 0 0 6px var(--qz-right-bg), 0 8px 24px rgba(30,155,255,0.2);
  animation: qz-pulse 2.4s var(--ease-out) infinite;
}
.qz-node.is-current:hover .qz-node-dot { transform: translateY(-3px) scale(1.06); animation: none; }
.qz-node.is-current .qz-node-sub { color: var(--clr-accent); }

@keyframes qz-pulse {
  0%, 100% { box-shadow: 0 0 0 6px var(--qz-right-bg), 0 8px 24px rgba(30,155,255,0.2); }
  50%      { box-shadow: 0 0 0 12px transparent,        0 8px 24px rgba(30,155,255,0.08); }
}

.qz-node.is-locked { cursor: not-allowed; }
.qz-node.is-locked .qz-node-dot { color: var(--qz-lock); }
.qz-node.is-locked .qz-node-label { color: var(--clr-text-muted); }

.qz-node-badge {
  position: absolute;
  top: -4px;
  right: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 99px;
  background: var(--clr-bg);
  border: 1px solid var(--qz-right-line);
  color: var(--clr-accent);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
}

.qz-path-end {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2.25rem;
  padding: 1.5rem;
  text-align: center;
  background: var(--clr-surface);
  border: 1px dashed var(--clr-border-2);
  border-radius: var(--radius-lg);
  color: var(--clr-text-muted);
}
.qz-path-end svg { color: var(--clr-accent); }
.qz-path-end p { margin: 0; font-size: 0.875rem; }


.qz-app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.qz-shell {
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.qz-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  padding: 0.875rem 0;
}

.qz-main {
  flex: 1;
  padding-top: 2rem;
  padding-bottom: calc(var(--qz-bar-h, 6rem) + 2rem);
}

.qz-chrome { display: none; }
html.qz-chrome-on .qz-chrome { display: block; }

.qz-chrome .site-header {
  position: relative;
  transform: none !important;
}
.qz-chrome .site-header .navbar {
  background: var(--clr-bg);
  border-bottom-color: var(--clr-border);
}

.qz-chrome-bottom .site-footer {
  padding-bottom: calc(1.5rem + var(--qz-bar-h, 6rem));
}

.qz-progress {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}
.qz-quit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--clr-border-2);
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.qz-quit:hover {
  color: var(--qz-wrong);
  border-color: var(--qz-wrong-line);
  background: var(--qz-wrong-bg);
}

.qz-chrome-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--clr-border-2);
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.qz-chrome-toggle:hover,
.qz-chrome-toggle[aria-expanded="true"] {
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}
.qz-chrome-toggle[aria-expanded="true"] { background: var(--clr-accent-glow); }

.qz-chrome-toggle.is-muted { color: var(--clr-text-muted); opacity: 0.55; }
.qz-chrome-toggle.is-muted:hover { color: var(--clr-text-muted); border-color: var(--clr-border-2); opacity: 0.85; }

.qz-bar {
  flex: 1;
  height: 12px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: 99px;
  overflow: hidden;
}
.qz-bar-fill {
  height: 100%;
  width: 0;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  transition: width 0.45s var(--ease-out);
}

.qz-tally {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--clr-accent);
  white-space: nowrap;
}
.qz-tally svg { flex-shrink: 0; }
.qz-tally.is-replay { color: var(--clr-text-muted); font-weight: 500; cursor: help; }
.qz-tally.is-replay svg { opacity: 0.6; }

.qz-stage { width: 100%; }
.qz-screen { animation: qz-in 0.35s var(--ease-out) both; }
.qz-screen[hidden] { display: none; }

@keyframes qz-in {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}


.qz-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 0.6rem;
}

.qz-card {
  position: relative;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem 2rem 2.125rem;
  box-shadow: var(--shadow-card);
  scroll-margin-top: 5rem;
  overflow: clip;
}
.qz-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  opacity: 0.9;
  pointer-events: none;
}
.qz-card-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 1.65rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.22;
  margin: 0 0 1.125rem;
}

.qz-card-body { color: var(--clr-text-muted); font-size: 1.02rem; line-height: 1.78; }
.qz-card-body > *:last-child { margin-bottom: 0; }
.qz-card-body p { margin: 0 0 1rem; }
.qz-card-body strong { color: var(--clr-text); font-weight: 600; }
.qz-card-body ul, .qz-card-body ol { margin: 0 0 1rem; padding-left: 1.1rem; }
.qz-card-body ul { list-style: none; padding-left: 0; }
.qz-card-body ul li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.5rem;
}
.qz-card-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--clr-accent);
}
.qz-card-body ol li { margin-bottom: 0.5rem; }
.qz-card-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.12em 0.4em;
  color: var(--clr-text);
}
.qz-card-body pre {
  background: #0a0e14;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.125rem 1.25rem;
  margin: 0 0 1rem;
  overflow-x: auto;
  line-height: 1.7;
}
.qz-card-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  color: #cdd6f4;
  white-space: pre;
}
[data-theme="light"] .qz-card-body pre { background: #1a2230; border-color: rgba(0,0,0,0.12); }

.qz-q-type {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--qz-right-bg);
  border: 1px solid var(--qz-right-line);
  border-radius: 99px;
  padding: 0.25rem 0.7rem;
  margin-bottom: 0.875rem;
}

.qz-prompt {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin: 0 0 1.25rem;
  color: var(--clr-text);
}

.qz-code {
  background: #0a0e14;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.125rem 1.25rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: #cdd6f4;
  overflow-x: auto;
  white-space: pre;
}
[data-theme="light"] .qz-code { background: #1a2230; border-color: rgba(0,0,0,0.12); }

.qz-hint {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--clr-text-dim);
  margin: -0.5rem 0 1.25rem;
}
.qz-hint svg { flex-shrink: 0; }

.qz-options { display: grid; gap: 0.75rem; }

.qz-opt {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  width: 100%;
  min-height: var(--qz-tap);
  padding: 0.875rem 1.125rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border-2);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.975rem;
  font-weight: 500;
  color: var(--clr-text);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, transform 0.18s var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.qz-opt:hover:not(:disabled) { border-color: var(--clr-accent); background: var(--qz-right-bg); }
.qz-opt:active:not(:disabled) { transform: scale(0.985); }
.qz-opt:disabled { cursor: default; }

.qz-opt-key {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--clr-border-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--clr-text-dim);
  transition: all 0.18s;
}
.qz-opt[data-multi="0"] .qz-opt-key { border-radius: 50%; }
.qz-opt[data-multi="1"] {
  --mc: var(--clr-accent-2);
  --mc-bg: color-mix(in srgb, var(--clr-accent-2) 11%, transparent);
}
.qz-opt[data-multi="1"] .qz-opt-key {
  border-radius: 7px;
  border-width: 2px;
  color: transparent;
}
.qz-opt[data-multi="1"] .qz-opt-key svg { width: 15px; height: 15px; display: none; }
.qz-opt[data-multi="1"]:hover:not(:disabled) { border-color: var(--mc); background: var(--mc-bg); }
.qz-opt[data-multi="1"].is-picked { border-color: var(--mc); background: var(--mc-bg); }
.qz-opt[data-multi="1"].is-picked .qz-opt-key { border-color: var(--mc); background: var(--mc); color: #0a0e14; }
.qz-opt[data-multi="1"].is-picked .qz-k-on,
.qz-opt[data-multi="1"].is-right .qz-k-on,
.qz-opt[data-multi="1"].is-missed .qz-k-on { display: block; }
.qz-opt[data-multi="1"].is-wrong .qz-k-off { display: block; }
.qz-opt[data-multi="1"].is-right .qz-opt-key,
.qz-opt[data-multi="1"].is-wrong .qz-opt-key { color: #fff; }
.qz-opt[data-multi="1"].is-missed .qz-opt-key { border-style: dashed; border-color: var(--qz-right); color: var(--qz-right); }
.qz-opt[data-multi="1"].is-picked .qz-k-on { animation: qz-tick 0.22s var(--ease-spring, ease-out); }
@keyframes qz-tick { from { transform: scale(0.3); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.qz-q-type.is-multi {
  color: var(--clr-accent-2);
  background: color-mix(in srgb, var(--clr-accent-2) 10%, transparent);
  border-color: color-mix(in srgb, var(--clr-accent-2) 40%, transparent);
}
.qz-q-ico { flex-shrink: 0; }
.qz-opt-text { flex: 1; min-width: 0; }
.qz-opt-text code,
.qz-opt-mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.qz-opt.is-picked {
  border-color: var(--clr-accent);
  background: var(--qz-right-bg);
}
.qz-opt.is-picked .qz-opt-key {
  border-color: var(--clr-accent);
  background: var(--clr-accent);
  color: #0a0e14;
}
[data-theme="light"] .qz-opt.is-picked .qz-opt-key { color: #fff; }
.qz-opt.is-right {
  border-color: var(--qz-right);
  background: var(--qz-right-bg);
}
.qz-opt.is-right .qz-opt-key {
  border-color: var(--qz-right);
  background: var(--qz-right);
  color: #0a0e14;
}
[data-theme="light"] .qz-opt.is-right .qz-opt-key { color: #fff; }
.qz-opt.is-wrong {
  border-color: var(--qz-wrong-line);
  background: var(--qz-wrong-bg);
}
.qz-opt.is-wrong .qz-opt-key {
  border-color: var(--qz-wrong);
  background: var(--qz-wrong);
  color: #fff;
}
.qz-opt.is-missed { border-style: dashed; border-color: var(--qz-right-line); }

.qz-bool { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.qz-bool .qz-opt {
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  min-height: 108px;
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}
.qz-bool .qz-opt svg { width: 26px; height: 26px; opacity: 0.85; }

.qz-fill {
  font-size: clamp(1.05rem, 2.6vw, 1.3rem);
  line-height: 2.3;
  color: var(--clr-text);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.qz-fill--blanks {
  display: block;
  padding: 1.1rem 1.25rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-left: 3px solid var(--clr-accent-2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  line-height: 2.6;
}
.qz-blank {
  display: inline-block;
  min-width: 5.5rem;
  max-width: 100%;
  padding: 0.3rem 0.75rem;
  margin: 0 0.25rem;
  vertical-align: middle;
  background: color-mix(in srgb, var(--clr-accent) 6%, var(--clr-bg));
  border: 2px dashed color-mix(in srgb, var(--clr-accent) 45%, var(--clr-border-2));
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 0.9em;
  font-weight: 600;
  line-height: 1.5;
  color: var(--clr-accent);
  text-align: center;
  outline: none;
  transition: border-color 0.18s, background 0.18s, box-shadow 0.18s, transform 0.18s var(--ease-out);
}
.qz-blank::placeholder { color: var(--clr-text-dim); font-weight: 400; font-style: italic; opacity: 0.8; }
.qz-blank:hover:not(:focus):not(:disabled) { border-color: var(--clr-accent); }
.qz-blank:focus {
  border-style: solid;
  border-color: var(--clr-accent);
  background: var(--qz-right-bg);
  box-shadow: 0 0 0 4px var(--clr-accent-glow);
}
.qz-blank:not(:placeholder-shown) { border-style: solid; border-color: var(--clr-accent); }
.qz-blank.is-right {
  border-style: solid;
  border-color: var(--qz-right);
  background: var(--qz-right-bg);
  box-shadow: 0 0 0 4px var(--qz-right-bg);
}
.qz-blank.is-wrong {
  border-style: solid;
  border-color: var(--qz-wrong);
  background: var(--qz-wrong-bg);
  color: var(--qz-wrong);
  animation: qz-shake 0.35s ease;
}
@keyframes qz-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
@media (prefers-reduced-motion: reduce) {
  .qz-blank.is-wrong, .qz-opt[data-multi="1"].is-picked .qz-k-on { animation: none; }
}

.qz-input {
  width: 100%;
  min-height: var(--qz-tap);
  padding: 0.875rem 1.125rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border-2);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--clr-text);
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
}
.qz-input::placeholder { color: var(--clr-text-dim); }
.qz-input:focus { border-color: var(--clr-accent); box-shadow: 0 0 0 3px var(--qz-right-bg); }
.qz-input.is-right { border-color: var(--qz-right); background: var(--qz-right-bg); }
.qz-input.is-wrong { border-color: var(--qz-wrong); background: var(--qz-wrong-bg); }

.qz-match {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.qz-match-col { display: grid; gap: 0.75rem; align-content: start; }
.qz-match-head {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  padding-left: 0.2rem;
}
.qz-tile {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 52px;
  padding: 0.75rem 0.875rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border-2);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, transform 0.18s var(--ease-out), opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.qz-tile:hover:not(:disabled):not(.is-paired) { border-color: var(--clr-accent); background: var(--qz-right-bg); }
.qz-tile:active:not(:disabled) { transform: scale(0.98); }
.qz-tile:disabled { cursor: default; }
.qz-tile.is-active {
  border-color: var(--clr-accent);
  background: var(--qz-right-bg);
  box-shadow: 0 0 0 3px var(--qz-right-bg);
}
.qz-tile-text { flex: 1; min-width: 0; word-break: break-word; }
.qz-tile-mono { font-family: var(--font-mono); font-size: 0.86rem; }

.qz-tile.is-paired { border-color: var(--pc, var(--clr-accent)); background: color-mix(in srgb, var(--pc, var(--clr-accent)) 10%, transparent); }
.qz-tile-chip {
  width: 10px;
  height: 10px;
  min-width: 10px;
  border-radius: 50%;
  background: var(--pc, transparent);
  border: 1.5px solid var(--clr-border-2);
  transition: background 0.2s, border-color 0.2s;
}
.qz-tile.is-paired .qz-tile-chip { border-color: var(--pc, var(--clr-accent)); }
.qz-tile.is-right { border-color: var(--qz-right); background: var(--qz-right-bg); }
.qz-tile.is-wrong { border-color: var(--qz-wrong); background: var(--qz-wrong-bg); }

.qz-order-help { font-size: 0.8rem; color: var(--clr-text-dim); margin: -0.5rem 0 0.875rem; }
.qz-order { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.qz-ord {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 52px;
  padding: 0.5rem 0.5rem 0.5rem 0.75rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border-2);
  border-radius: var(--radius-md);
  color: var(--clr-text);
  font-size: 0.9rem;
  cursor: grab;
  transition: border-color 0.18s, background 0.18s, opacity 0.18s;
  -webkit-tap-highlight-color: transparent;
}
.qz-ord:hover { border-color: var(--clr-accent); }
.qz-ord.is-dragging { opacity: 0.45; border-style: dashed; border-color: var(--clr-accent); }
.qz-ord-grip { color: var(--clr-text-dim); letter-spacing: -0.2em; user-select: none; }
.qz-ord-n {
  min-width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1.5px solid var(--clr-border-2);
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700;
  color: var(--clr-text-dim);
}
.qz-ord-text { flex: 1; min-width: 0; word-break: break-word; text-align: left; }
.qz-ord-btns { display: flex; flex-direction: column; gap: 2px; }
.qz-ord-btn {
  width: 34px; height: 24px; padding: 0;
  background: transparent;
  border: 1px solid var(--clr-border-2);
  border-radius: 6px;
  color: var(--clr-text-dim);
  font-size: 0.6rem;
  cursor: pointer;
}
.qz-ord-btn:hover:not(:disabled) { border-color: var(--clr-accent); color: var(--clr-accent); }
.qz-ord-btn:disabled { opacity: 0.3; cursor: default; }
.qz-ord.is-right { border-color: var(--qz-right); background: var(--qz-right-bg); cursor: default; }
.qz-ord.is-wrong { border-color: var(--qz-wrong); background: var(--qz-wrong-bg); cursor: default; }

.qz-cats { display: grid; gap: 0.6rem; }
.qz-cat-row {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.6rem 1rem;
  padding: 0.6rem 0.75rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border-2);
  border-radius: var(--radius-md);
}
.qz-cat-text { flex: 1 1 12rem; min-width: 0; word-break: break-word; font-size: 0.92rem; font-weight: 500; color: var(--clr-text); }
.qz-cat-btns { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.qz-cat-btn {
  min-height: 38px;
  padding: 0.4rem 0.8rem;
  background: transparent;
  border: 1.5px solid var(--clr-border-2);
  border-radius: 999px;
  font-family: var(--font-body); font-size: 0.82rem; font-weight: 600;
  color: var(--clr-text-dim);
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, color 0.18s;
}
.qz-cat-btn:hover:not(:disabled) { border-color: var(--clr-accent); color: var(--clr-text); }
.qz-cat-btn:disabled { cursor: default; }
.qz-cat-btn.is-picked { border-color: var(--clr-accent); background: var(--clr-accent); color: #0a0e14; }
.qz-cat-btn.is-picked.is-right { border-color: var(--qz-right); background: var(--qz-right); color: #0a0e14; }
.qz-cat-btn.is-picked.is-wrong { border-color: var(--qz-wrong); background: var(--qz-wrong); color: #fff; }
[data-theme="light"] .qz-cat-btn.is-picked,
[data-theme="light"] .qz-cat-btn.is-picked.is-right { color: #fff; }

.qz-slot {
  display: inline-block;
  min-width: 5.5rem;
  min-height: 2.2rem;
  margin: 0 0.15rem;
  padding: 0.2rem 0.7rem;
  vertical-align: middle;
  background: var(--clr-surface);
  border: 2px dashed var(--clr-border-2);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 0.85em; font-weight: 500;
  color: var(--clr-accent);
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s;
}
.qz-slot.is-active, .qz-slot.is-over { border-color: var(--clr-accent); background: var(--qz-right-bg); }
.qz-slot.is-filled { border-style: solid; border-color: var(--clr-accent); }
.qz-slot.is-right { border-style: solid; border-color: var(--qz-right); background: var(--qz-right-bg); }
.qz-slot.is-wrong { border-style: solid; border-color: var(--qz-wrong); background: var(--qz-wrong-bg); color: var(--qz-wrong); }
.qz-slot:disabled { cursor: default; }
.qz-bank { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.25rem; padding: 1rem; border: 1.5px dashed var(--clr-border-2); border-radius: var(--radius-md); }
.qz-chip {
  min-height: 42px;
  padding: 0.45rem 0.95rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border-2);
  border-radius: var(--radius-sm);
  font-family: var(--font-body); font-size: 0.92rem; font-weight: 600;
  color: var(--clr-text);
  cursor: grab;
  transition: border-color 0.18s, opacity 0.18s, transform 0.18s var(--ease-out);
}
.qz-chip:hover:not(:disabled):not(.is-used) { border-color: var(--clr-accent); }
.qz-chip:active:not(:disabled) { transform: scale(0.96); }
.qz-chip.is-used { opacity: 0.28; cursor: default; }
.qz-chip.is-dragging { opacity: 0.5; }
.qz-chip:disabled { cursor: default; }

.qz-num { display: flex; align-items: center; gap: 0.75rem; }
.qz-num .qz-input { flex: 1; }
.qz-num-unit { font-family: var(--font-mono); font-size: 0.95rem; color: var(--clr-text-dim); }

.qz-hot {
  display: block;
  background: #0a0e14;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.5rem 0;
  overflow-x: auto;
}
[data-theme="light"] .qz-hot { background: #1a2230; border-color: rgba(0,0,0,0.12); }
.qz-line {
  display: flex; align-items: baseline; gap: 1rem;
  width: 100%; min-width: max-content;
  padding: 0.2rem 1rem 0.2rem 0.5rem;
  background: transparent;
  border: 0; border-left: 3px solid transparent;
  font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.7;
  color: #cdd6f4; text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.qz-line-n { min-width: 2ch; text-align: right; color: #6c7086; user-select: none; }
.qz-line-code { font: inherit; white-space: pre; }
.qz-line:hover:not(:disabled) { background: rgba(255,255,255,0.07); }
.qz-line:disabled { cursor: default; }
.qz-line.is-picked { background: rgba(30,155,255,0.14); border-left-color: var(--clr-accent); }
.qz-line.is-right { background: rgba(30,155,255,0.2); border-left-color: var(--qz-right); }
.qz-line.is-wrong { background: rgba(248,113,113,0.2); border-left-color: var(--qz-wrong); }


.qz-actionbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  border-top: 2px solid var(--clr-border);
  padding: 1rem 0 calc(1rem + env(safe-area-inset-bottom, 0px));
  background-color: var(--clr-bg);
  background-image: none;
  transition: background-color 0.25s, border-color 0.25s;
}
.qz-actionbar.is-right {
  background-image: linear-gradient(var(--qz-right-bg), var(--qz-right-bg));
  border-top-color: var(--qz-right);
}
.qz-actionbar.is-wrong {
  background-image: linear-gradient(var(--qz-wrong-bg), var(--qz-wrong-bg));
  border-top-color: var(--qz-wrong);
}
.qz-actionbar[hidden] { display: none; }

.qz-actionbar::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: calc(100% + 2px);
  height: 32px;
  background: linear-gradient(to top, var(--clr-bg), transparent);
  pointer-events: none;
  transition: opacity 0.2s;
}
.qz-actionbar.is-right::before,
.qz-actionbar.is-wrong::before { opacity: 0; }

.qz-actionbar-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 56px;
}

.qz-feedback {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  visibility: hidden;
}
.qz-feedback.show {
  visibility: visible;
  animation: qz-pop 0.32s var(--ease-spring) both;
}
.qz-feedback-body {
  flex: 1;
  min-width: 0;
  max-height: 30vh;
  overflow-y: auto;
  overflow-wrap: anywhere;
  padding-right: 0.25rem;
}
.qz-feedback-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: 50%;
  color: #0a0e14;
}
.qz-feedback.show .qz-feedback-icon { animation: qz-ring 0.7s ease-out 0.05s 1 both; }
.qz-feedback.is-right .qz-feedback-icon { background: var(--qz-right); --ring: var(--qz-right-line); }
.qz-feedback.is-wrong .qz-feedback-icon { background: var(--qz-wrong); color: #fff; --ring: var(--qz-wrong-line); }
.qz-feedback-icon svg { width: 20px; height: 20px; }

.qz-feedback-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0.1rem 0 0.25rem;
}
.qz-feedback.is-right .qz-feedback-title { color: var(--qz-right); }
.qz-feedback.is-wrong .qz-feedback-title { color: var(--qz-wrong); }
.qz-feedback-text {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--clr-text);
  opacity: 0.86;
}
.qz-feedback-text code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--clr-text);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: 5px;
  padding: 0.08em 0.4em;
}

.qz-peek-btn {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 0.35rem;
  margin: 0.5rem 0 0;
  padding: 0.35rem 0.85rem;
  min-height: 34px;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--qz-wrong);
  background: transparent;
  border: 1.5px solid var(--qz-wrong-line);
  border-radius: 99px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.18s, border-color 0.18s;
}
.qz-peek-btn:hover { background: var(--qz-wrong-bg); border-color: var(--qz-wrong); }
.qz-peek-btn:focus-visible { outline: 2px solid var(--qz-wrong); outline-offset: 2px; }

@keyframes qz-pop {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}
@keyframes qz-ring {
  0%   { box-shadow: 0 0 0 0 var(--ring, transparent); }
  100% { box-shadow: 0 0 0 14px transparent; }
}

.qz-action {
  --edge: #1479d4;
  flex: 0 0 auto;
  min-width: 150px;
  max-width: 220px;
  min-height: 52px;
  padding: 0.75rem 1.5rem;
  justify-content: center;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  overflow: hidden;
  text-overflow: ellipsis;
  box-shadow: 0 4px 0 var(--edge);
  transition: transform 0.1s, box-shadow 0.1s, background-color 0.2s, filter 0.2s;
}
[data-theme="light"] .qz-action { --edge: #064a9c; }
.qz-action:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 5px 0 var(--edge);
  filter: brightness(1.05);
}
.qz-action:active:not(:disabled) {
  transform: translateY(4px);
  box-shadow: 0 0 0 var(--edge);
}
.qz-action:focus-visible { outline: 3px solid var(--clr-text); outline-offset: 3px; }
.qz-action:disabled {
  opacity: 1;
  cursor: not-allowed;
  background: var(--clr-surface-2);
  color: var(--clr-text-dim);
  box-shadow: 0 4px 0 var(--clr-border-2);
  transform: none;
}
.qz-action.is-wrong-btn { --edge: #b91c1c; background: var(--qz-wrong); color: #fff; }

.qz-scrollcue {
  position: fixed;
  left: 50%;
  bottom: calc(var(--qz-bar-h, 6rem) + 0.875rem);
  z-index: 85;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.95rem 0.5rem 0.75rem;
  font: 700 0.78rem/1 var(--font-body);
  letter-spacing: 0.03em;
  color: var(--clr-text);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border-2);
  border-radius: 99px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.35);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity 0.2s, transform 0.2s var(--ease-out);
}
.qz-scrollcue.show { opacity: 1; pointer-events: auto; transform: translate(-50%, 0); }
.qz-scrollcue svg { animation: qz-nudge 1.6s ease-in-out infinite; }
@keyframes qz-nudge { 0%,100% { transform: translateY(-1px); } 50% { transform: translateY(2px); } }


.qz-results { text-align: center; padding: 1rem 0 2rem; }

.qz-results-medal {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 92px;
  height: 92px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: var(--qz-right-bg);
  border: 2px solid var(--qz-right-line);
  color: var(--clr-accent);
  animation: qz-medal 0.6s var(--ease-spring) both;
}
.qz-results-medal svg { width: 44px; height: 44px; }

@keyframes qz-medal {
  from { opacity: 0; transform: scale(0.5) rotate(-12deg); }
  to   { opacity: 1; transform: none; }
}

.qz-results-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
}
.qz-results-sub {
  font-size: 1rem;
  color: var(--clr-text-muted);
  margin: 0 auto 2rem;
  max-width: 44ch;
}

.qz-scoreboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.875rem;
  margin-bottom: 2rem;
}
.qz-score {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.125rem 0.875rem;
}
.qz-score-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--clr-accent);
}
.qz-score.is-streak .qz-score-value { color: var(--qz-streak); }
.qz-score-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  margin-top: 0.4rem;
}

.qz-results-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.qz-results-actions .btn { min-height: 52px; }


.qz-profile-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.75rem;
}
.qz-profile-stat {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.875rem;
  text-align: center;
}
.qz-profile-stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1;
  color: var(--clr-accent);
}
.qz-profile-stat.is-streak b { color: var(--qz-streak); }
.qz-profile-stat span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  margin-top: 0.35rem;
}

.qz-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 4.5rem 2rem;
  text-align: center;
  color: var(--clr-text-muted);
}
.qz-empty svg { opacity: 0.25; }
.qz-empty p { margin: 0; }

.qz-toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--qz-bar-h, 6rem) + 1rem);
  z-index: 120;
  transform: translate(-50%, 16px);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  max-width: calc(100vw - 2rem);
  padding: 0.75rem 1.125rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-radius: 99px;
  box-shadow: var(--shadow-deep);
  font-size: 0.85rem;
  color: var(--clr-text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s var(--ease-out);
}
.qz-toast.show { opacity: 1; transform: translate(-50%, 0); }


.qz-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.qz-modal[hidden] { display: none; }

.qz-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,14,20,0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: qz-fade 0.2s var(--ease-out) both;
}
[data-theme="light"] .qz-modal-backdrop { background: rgba(13,16,35,0.42); }

.qz-modal-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep);
  padding: 1.75rem;
  text-align: center;
  animation: qz-pop 0.28s var(--ease-spring) both;
}

.qz-modal-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background: rgba(255,144,64,0.1);
  border: 1px solid rgba(255,144,64,0.28);
  color: var(--qz-streak);
}

.qz-modal-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  color: var(--clr-text);
}
.qz-modal-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--clr-text-muted);
  margin: 0 0 1.5rem;
}

.qz-modal-actions {
  display: flex;
  gap: 0.75rem;
}
.qz-modal-actions .btn {
  flex: 1;
  min-height: 50px;
  justify-content: center;
}

@keyframes qz-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}


@media (max-width: 900px) {
  .qz-tracks { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
}

@media (max-width: 680px) {
  :root { --qz-amp: 0.55; }

  .qz-header { padding: 3rem 0 2rem; }
  .qz-tracks { grid-template-columns: 1fr; gap: 1rem; }
  .qz-stats  { grid-template-columns: 1fr 1fr; gap: 0.75rem; }

  .qz-card  { padding: 1.375rem 1.25rem; }
  .qz-shell { padding: 0 1rem; }
  .qz-main  { padding-top: 1.5rem; }

  .qz-actionbar-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  .qz-action   { width: 100%; min-width: 0; max-width: none; }
  .qz-feedback-body { max-height: 26vh; }
  .qz-feedback-icon { width: 36px; height: 36px; min-width: 36px; }
  .qz-feedback-icon svg { width: 18px; height: 18px; }
  .qz-feedback-title { font-size: 1.05rem; }
  .qz-card { padding: 1.5rem 1.25rem 1.625rem; }
  .qz-feedback { order: -1; }
  .qz-feedback:not(.show) { display: none; }

  .qz-modal-card    { padding: 1.5rem 1.25rem; }
  .qz-modal-actions { flex-direction: column-reverse; }

  .qz-match { grid-template-columns: 1fr; gap: 1.25rem; }

  .qz-node       { width: 118px; }
  .qz-node-dot   { width: 64px; height: 64px; font-size: 1.05rem; }
  .qz-node-badge { right: 16px; }

  .qz-step:not(:first-child)::before {
    top: calc(-0.15rem - var(--qz-conn-len-mob, 1.95rem));
    height: var(--qz-conn-len-mob, 1.95rem);
    transform: translateX(-50%) rotate(var(--qz-conn-angle-mob, 0deg));
  }
}

@media (max-width: 420px) {
  .qz-progress { gap: 0.5rem; }
  .qz-quit, .qz-chrome-toggle { width: 34px; height: 34px; min-width: 34px; }
  .qz-tally { font-size: 0.78rem; }

  .qz-stats { grid-template-columns: 1fr; }
  .qz-bool  { grid-template-columns: 1fr; }
  .qz-bool .qz-opt { min-height: var(--qz-tap); flex-direction: row; justify-content: flex-start; }
  .qz-fill  { line-height: 2.6; }
  .qz-blank { padding: 0.5rem 0.6rem; }
}

@media (prefers-reduced-motion: reduce) {
  .qz-screen,
  .qz-feedback,
  .qz-feedback-icon,
  .qz-scrollcue svg,
  .qz-results-medal { animation: none !important; }
  .qz-action, .qz-scrollcue { transition: none; }
  .qz-node.is-current .qz-node-dot { animation: none; }
  .qz-track:hover { transform: none; }
}


.qz-bar { position: relative; }
.qz-bar-tick {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--clr-surface);
  pointer-events: none;
}

.qz-q-lead {
  padding-right: 0.5rem;
  margin-right: 0.15rem;
  border-right: 1px solid currentColor;
}
.qz-q-type.is-extra {
  color: #f5a524;
  background: rgba(245,165,36,0.1);
  border-color: rgba(245,165,36,0.35);
}
:root[data-theme="light"] .qz-q-type.is-extra { color: #b45309; }

.qz-fb-next {
  display: block;
  margin-top: 0.25rem;
  color: var(--clr-text);
  font-weight: 600;
}

.qz-sheet {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.qz-sheet[hidden] { display: none; }
.qz-sheet-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,14,20,0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: qz-fade 0.2s var(--ease-out) both;
}
.qz-sheet-panel {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 82vh;
  max-height: 82dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-bottom: 0;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow-deep);
  padding: 1.25rem 1.5rem calc(1.5rem + env(safe-area-inset-bottom, 0px));
  animation: qz-sheet-up 0.28s var(--ease-out) both;
}
.qz-sheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.qz-sheet-label {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-text-muted);
}
.qz-sheet-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  color: var(--clr-text-muted);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  cursor: pointer;
}
.qz-sheet-close:hover { color: var(--clr-text); border-color: var(--clr-border-2); }
.qz-sheet-close:focus-visible { outline: 2px solid var(--clr-accent); outline-offset: 2px; }
.qz-sheet-title {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--clr-text);
}
.qz-sheet .code-block-toolbar .code-copy-btn { display: none; }

@media (min-width: 640px) {
  .qz-sheet { align-items: center; padding: 1.5rem; }
  .qz-sheet-panel {
    border-bottom: 1px solid var(--clr-border-2);
    border-radius: var(--radius-lg);
  }
}

@keyframes qz-sheet-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}

.qz-covered {
  max-width: 440px;
  margin: 0 auto 1.75rem;
  padding: 1rem 1.25rem;
  text-align: left;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
}
.qz-covered-head {
  margin: 0 0 0.6rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--clr-text-muted);
}
.qz-covered ul { list-style: none; margin: 0; padding: 0; }
.qz-covered li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.3rem 0;
  font-size: 0.92rem;
  line-height: 1.4;
  color: var(--clr-text);
}
.qz-covered li svg { flex-shrink: 0; margin-top: 0.2rem; color: var(--qz-right); }

@media (prefers-reduced-motion: reduce) {
  .qz-sheet-panel,
  .qz-sheet-backdrop { animation: none; }
}

.qz-opt[data-multi="1"] .qz-opt-key svg { width: 17px; height: 17px; stroke-width: 4; }
.qz-opt[data-multi="1"].is-picked .qz-opt-key { color: #021018; }
[data-theme="light"] .qz-opt[data-multi="1"].is-picked .qz-opt-key { color: #fff; }

.qz-nw { white-space: nowrap; }