/* =========================================================================
   QUIZ — extends styles.css with quiz-specific layout
   ========================================================================= */

.quiz-page { min-height: 100vh; position: relative; }

/* ===== HERO / INTRO ===== */
.qhero {
  padding: 80px 0 40px;
  position: relative;
}
.qhero__eyebrow {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 28px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-mute);
}
.qhero__eyebrow b { color: var(--accent); font-weight: 500; }
.qhero__eyebrow .line {
  flex: 1; height: 1px; background: var(--line);
}
.qhero__title {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(48px, 8vw, 120px);
  line-height: 0.92;
  letter-spacing: -0.025em;
  margin-bottom: 28px;
}
.qhero__title .grad {
  background: linear-gradient(92deg, var(--neon-1) 0%, var(--neon-3) 50%, var(--neon-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-style: italic;
  animation: hueShift 10s ease-in-out infinite;
}
.qhero__title .outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--text);
  font-style: italic;
  font-weight: 500;
}
@keyframes hueShift { 0%,100% { filter: hue-rotate(0deg); } 50% { filter: hue-rotate(40deg); } }

.qhero__lead {
  font-size: 17px; line-height: 1.55;
  color: var(--text-soft);
  max-width: 58ch;
  margin-bottom: 56px;
}

/* ===== LANGUAGE GRID ===== */
.lang-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
@media (max-width: 900px) {
  .lang-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .lang-grid { grid-template-columns: 1fr; }
}

.lang-card {
  position: relative;
  padding: 28px 24px 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    radial-gradient(100% 80% at 0% 0%, color-mix(in srgb, var(--neon-1) 8%, transparent), transparent 60%),
    var(--surface);
  cursor: pointer;
  text-align: left;
  transition: transform 0.3s cubic-bezier(0.2, 0.9, 0.3, 1), border-color 0.3s, box-shadow 0.3s;
  overflow: hidden;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-family: inherit;
  color: inherit;
}
.lang-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  padding: 1px;
  background: conic-gradient(from 0deg, var(--neon-1), var(--neon-2), var(--neon-3), var(--neon-1));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.lang-card:hover::before { opacity: 1; }
.lang-card:hover {
  transform: translateY(-3px);
  border-color: transparent;
  box-shadow: 0 24px 60px -20px color-mix(in srgb, var(--neon-1) 28%, transparent);
}
.lang-card__id {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-mute);
  display: flex; justify-content: space-between;
}
.lang-card__id b { color: var(--accent); font-weight: 500; }
.lang-card__word {
  font-family: var(--display);
  font-size: 48px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 18px 0 14px;
  background: linear-gradient(135deg, var(--text) 0%, color-mix(in srgb, var(--text) 60%, transparent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lang-card__label {
  font-family: var(--display);
  font-size: 20px; font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}
.lang-card__meta {
  font-family: var(--mono); font-size: 11px;
  color: var(--text-mute); letter-spacing: 0.04em;
}
.lang-card--mix {
  background:
    radial-gradient(80% 80% at 100% 100%, color-mix(in srgb, var(--neon-2) 14%, transparent), transparent 60%),
    radial-gradient(80% 80% at 0% 0%, color-mix(in srgb, var(--neon-1) 12%, transparent), transparent 60%),
    var(--surface);
}
.lang-card--mix .lang-card__word {
  background: linear-gradient(92deg, var(--neon-1), var(--neon-3), var(--neon-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-style: italic;
}

/* ===== LEVEL PICKER ===== */
.levels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}
@media (max-width: 720px) { .levels { grid-template-columns: repeat(2, 1fr); } }

.level-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 20px;
  background: var(--surface);
  text-align: left;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s, opacity 0.25s;
  cursor: pointer;
  overflow: hidden;
  font-family: inherit;
  color: inherit;
}
.level-card:hover:not(.locked) {
  transform: translateY(-2px);
  border-color: var(--neon-2);
  box-shadow: 0 18px 50px -20px color-mix(in srgb, var(--neon-2) 30%, transparent);
}
.level-card__top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-mute);
}
.level-card__code {
  font-family: var(--display);
  font-size: 42px; font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--neon-1), var(--neon-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.level-card__name {
  font-size: 13px;
  color: var(--text-soft);
}
.level-card__badge {
  display: inline-block;
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.level-card__badge--passed {
  color: #0a0a0f;
  background: linear-gradient(90deg, var(--neon-1), var(--neon-2));
  border-color: transparent;
}
.level-card__badge--current {
  color: var(--neon-2);
  border-color: color-mix(in srgb, var(--neon-2) 50%, transparent);
}
.level-card__badge--locked {
  color: var(--text-mute);
}
.level-card.locked {
  opacity: 0.4;
  cursor: not-allowed;
  filter: grayscale(0.7);
}
.level-card.locked .level-card__code {
  background: var(--text-mute);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.level-card__best {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 10px;
  color: var(--text-mute);
  letter-spacing: 0.04em;
}
.level-card__best b { color: var(--text); font-weight: 500; }

/* ===== QUIZ QUESTION SCREEN ===== */
.qgame {
  padding: 48px 0 80px;
}
.qgame__topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 56px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.qgame__back {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-mute);
  padding: 8px 12px; border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: all 0.2s;
  cursor: pointer;
}
.qgame__back:hover { color: var(--text); border-color: var(--line-strong); }
.qgame__meta {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--mono); font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 0.08em; text-transform: uppercase;
  flex: 1;
  flex-wrap: wrap;
}
.qgame__chip {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-soft);
}
.qgame__chip b { color: var(--accent); font-weight: 500; }

.qgame__progress {
  flex: 1;
  min-width: 160px;
  height: 4px;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.qgame__progress::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--neon-1), var(--neon-2));
  border-radius: 999px;
  transform: scaleX(var(--p, 0));
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.2, 0.9, 0.3, 1);
}

.qgame__streak {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-soft);
  padding: 6px 10px;
  border: 1px solid color-mix(in srgb, var(--neon-4) 40%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--neon-4) 8%, transparent);
}
.qgame__streak b { color: var(--neon-4); font-weight: 500; }

/* Question */
.qbox {
  max-width: 820px;
  margin: 0 auto;
  animation: qFade 0.45s cubic-bezier(0.2, 0.9, 0.3, 1);
}
@keyframes qFade {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.qbox__type {
  display: inline-flex;
  align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--neon-2);
  padding: 6px 12px;
  border: 1px solid color-mix(in srgb, var(--neon-2) 40%, transparent);
  border-radius: 999px;
  margin-bottom: 28px;
}
.qbox__type .tlang {
  color: var(--text-mute);
  padding-left: 8px;
  margin-left: 6px;
  border-left: 1px solid color-mix(in srgb, var(--neon-2) 30%, transparent);
}
.qbox__prompt-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 14px;
}
.qbox__prompt {
  font-family: var(--display);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin-bottom: 52px;
  text-wrap: pretty;
}
.qbox__prompt em {
  font-style: italic;
  background: linear-gradient(92deg, var(--neon-1), var(--neon-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.qbox__options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.qbox__options--image {
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 640px) { .qbox__options { grid-template-columns: 1fr; } }

.qopt {
  position: relative;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  text-align: left;
  font-family: inherit;
  color: inherit;
  font-size: 17px;
  line-height: 1.4;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  gap: 14px;
  overflow: hidden;
}
.qopt:hover:not(:disabled):not(.correct):not(.wrong) {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: var(--surface-2);
}
.qopt__key {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--text-mute);
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.qopt__text { flex: 1; }
.qopt.correct {
  border-color: #4ade80;
  background: color-mix(in srgb, #4ade80 10%, var(--surface));
  box-shadow: 0 0 0 1px #4ade80, 0 8px 40px -12px rgba(74,222,128,0.5);
}
.qopt.correct .qopt__key {
  background: #4ade80; color: #0a0a0f;
  border-color: #4ade80;
}
.qopt.wrong {
  border-color: #f87171;
  background: color-mix(in srgb, #f87171 10%, var(--surface));
}
.qopt.wrong .qopt__key {
  background: #f87171; color: #0a0a0f;
  border-color: #f87171;
}
.qopt:disabled { cursor: default; }
.qopt.dim { opacity: 0.4; }

/* Image options */
.qbox__options--image .qopt {
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 32px 16px;
  min-height: 160px;
  font-size: 64px;
}
.qbox__options--image .qopt .qopt__text { font-size: 64px; line-height: 1; text-align: center; }
.qbox__options--image .qopt .qopt__key {
  position: absolute; top: 10px; left: 10px;
}

/* ===== REVEAL FEEDBACK ===== */
.qreveal {
  margin-top: 32px;
  padding: 20px 22px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  display: flex; align-items: center; gap: 16px;
  animation: qFade 0.3s;
}
.qreveal.good { border-color: color-mix(in srgb, #4ade80 50%, transparent); }
.qreveal.bad { border-color: color-mix(in srgb, #f87171 50%, transparent); }
.qreveal__icon {
  width: 36px; height: 36px; border-radius: 50%;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-family: var(--mono);
}
.qreveal.good .qreveal__icon { background: #4ade80; color: #0a0a0f; }
.qreveal.bad .qreveal__icon  { background: #f87171; color: #0a0a0f; }
.qreveal__text {
  flex: 1;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.5;
}
.qreveal__text b { color: var(--text); }
.qreveal__next {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--text); color: var(--bg);
  border: none; cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.qreveal__next:hover { transform: translateY(-1px); box-shadow: 0 8px 24px -8px color-mix(in srgb, var(--text) 40%, transparent); }

/* ===== RESULT SCREEN ===== */
.qresult {
  padding: 80px 0;
  text-align: left;
  max-width: 820px;
  margin: 0 auto;
  animation: qFade 0.5s;
}
.qresult__eyebrow {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 18px;
}
.qresult__headline {
  font-family: var(--display);
  font-size: clamp(48px, 8vw, 104px);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 0.95;
  margin-bottom: 28px;
}
.qresult__headline em {
  font-style: italic;
  background: linear-gradient(92deg, var(--neon-1), var(--neon-3), var(--neon-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: hueShift 6s ease-in-out infinite;
}
.qresult__lead {
  font-size: 18px; line-height: 1.55;
  color: var(--text-soft);
  max-width: 56ch;
  margin-bottom: 48px;
}

.qresult__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--line);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  margin-bottom: 36px;
}
@media (max-width: 720px) { .qresult__stats { grid-template-columns: 1fr; } }
.qresult__stat {
  background: var(--surface);
  padding: 20px 22px;
}
.qresult__stat .v {
  font-family: var(--display);
  font-size: 44px; font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 6px;
  background: linear-gradient(135deg, var(--neon-1), var(--neon-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.qresult__stat .l {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-mute);
}

.qresult__cta {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.qresult__unlock {
  margin-bottom: 32px;
  padding: 22px 24px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--neon-4) 50%, transparent);
  background:
    radial-gradient(100% 80% at 100% 0%, color-mix(in srgb, var(--neon-4) 20%, transparent), transparent 60%),
    var(--surface);
  display: flex; align-items: center; gap: 18px;
  animation: unlockPulse 2s ease-out;
}
@keyframes unlockPulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--neon-4) 60%, transparent); }
  70% { box-shadow: 0 0 0 24px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.qresult__unlock-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(135deg, var(--neon-4), var(--neon-1));
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: #0a0a0f;
  font-family: var(--mono); font-weight: 700; font-size: 18px;
}
.qresult__unlock-text {
  flex: 1;
  font-size: 14px; line-height: 1.5;
  color: var(--text-soft);
}
.qresult__unlock-text b {
  color: var(--text); font-weight: 500;
}

/* ===== HISTORY ===== */
.history {
  margin: 60px 0 80px;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}
.history__head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 24px;
}
.history__title {
  font-family: var(--display);
  font-size: 28px; font-weight: 500;
  letter-spacing: -0.015em;
}
.history__wipe {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-mute);
  cursor: pointer; border: none; background: none;
  padding: 6px 10px;
}
.history__wipe:hover { color: var(--neon-1); }
.history__list {
  display: flex; flex-direction: column; gap: 2px;
  background: var(--line);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
}
.history__row {
  display: grid;
  grid-template-columns: 1fr 80px 80px 100px 140px;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  background: var(--surface);
  font-family: var(--mono); font-size: 12px;
  color: var(--text-soft);
}
.history__row .date { color: var(--text-mute); font-size: 11px; }
.history__row .lvl {
  font-family: var(--display); font-size: 16px; font-weight: 500;
  background: linear-gradient(135deg, var(--neon-1), var(--neon-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.history__row .score b { color: var(--text); font-weight: 500; }
.history__row .status {
  text-align: right;
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
}
.history__row .status.pass { color: #4ade80; }
.history__row .status.fail { color: var(--text-mute); }
@media (max-width: 720px) {
  .history__row { grid-template-columns: 1fr 60px 60px; gap: 10px; font-size: 11px; }
  .history__row .date, .history__row .status { display: none; }
}

/* ===== NAV OVERRIDE (minimal for quiz) ===== */
.qnav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.qnav__inner {
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px;
}
.qnav__back-home {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 12px;
  color: var(--text-soft);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  transition: all 0.2s;
}
.qnav__back-home:hover { color: var(--text); border-color: var(--line-strong); }

/* ===== CONFETTI ON CORRECT ===== */
.confetti-layer {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9000;
  overflow: hidden;
}
.confetti-piece {
  position: absolute;
  width: 8px; height: 14px;
  animation: confetti-fall 1.8s cubic-bezier(0.15, 0.35, 0.4, 1) forwards;
  will-change: transform, opacity;
}
@keyframes confetti-fall {
  0%   { transform: translate3d(0, -20vh, 0) rotate(0deg); opacity: 1; }
  100% { transform: translate3d(var(--dx, 0), 100vh, 0) rotate(var(--r, 720deg)); opacity: 0.2; }
}