/* =======================================================
   Master-Quiz — Core Components v2
   Depends on tokens.css. Namespace: .mq-*
   ======================================================= */

/* ============ BUTTONS ============ */
.mq-btn {
  font-family: inherit;
  font-weight: var(--mq-weight-bold);
  font-size: 15px;
  letter-spacing: var(--mq-tracking-body);
  line-height: 1;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--mq-radius-btn);
  border: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform var(--mq-transition-base), box-shadow var(--mq-transition-base);
  box-sizing: border-box;
  outline: none;
  overflow: hidden;
  background-clip: padding-box;
  text-decoration: none;
}
.mq-btn:hover:not(:disabled) { transform: translateY(-2px); }
.mq-btn:active:not(:disabled) { transform: translateY(0); }
.mq-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.mq-btn:focus-visible { box-shadow: var(--mq-shadow-focus); }

.mq-btn--primary   { background: var(--mq-gradient-cta);    color: var(--mq-white); box-shadow: var(--mq-shadow-cta); }
.mq-btn--primary:hover:not(:disabled) { box-shadow: var(--mq-shadow-cta-hover); }
.mq-btn--secondary { background: var(--mq-gradient-button); color: var(--mq-white); box-shadow: var(--mq-shadow-colored); }
.mq-btn--tertiary  { background: var(--mq-white); color: var(--mq-grad-mid); box-shadow: 0 4px 14px rgba(0,0,0,.14); }
.mq-btn--ghost     { background: rgba(255,255,255,.18); color: var(--mq-white); border: 2px solid rgba(255,255,255,.4); padding: 0 22px; backdrop-filter: blur(10px); }
.mq-btn--neutral   { background: var(--mq-white); border: 2px solid var(--mq-gray-200); padding: 0 22px; color: var(--mq-primary); }
.mq-btn--danger    { background: var(--mq-error); color: var(--mq-white); box-shadow: 0 4px 12px rgba(239,68,68,.35); }
.mq-btn--success   { background: var(--mq-gradient-success); color: var(--mq-white); box-shadow: 0 4px 12px rgba(16,185,129,.35); }

.mq-btn--tertiary .mq-btn__text,
.mq-btn--neutral  .mq-btn__text {
  background: var(--mq-gradient-button);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.mq-btn--sm    { height: 36px; padding: 0 16px; font-size: 13px; border-radius: 10px; }
.mq-btn--lg    { height: 56px; padding: 0 32px; font-size: 17px; }
.mq-btn--block { width: 100%; justify-content: center; }


/* ============ INPUTS ============ */
.mq-input {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--mq-gray-200);
  border-radius: var(--mq-radius-btn);
  font-size: 15px;
  font-family: inherit;
  color: var(--mq-gray-800);
  background: var(--mq-white);
  box-sizing: border-box;
  transition: border-color var(--mq-transition-fast), box-shadow var(--mq-transition-fast);
  line-height: 1.2;
}
.mq-input::placeholder { color: var(--mq-fg-3); }
.mq-input:focus { border-color: var(--mq-primary); box-shadow: 0 0 0 4px rgba(99,102,241,.15); outline: none; }
.mq-input--error { border-color: var(--mq-error); box-shadow: 0 0 0 4px rgba(239,68,68,.12); }
.mq-input:disabled, .mq-input--disabled { background: var(--mq-gray-50); color: var(--mq-fg-3); border-color: var(--mq-gray-100); cursor: not-allowed; }

.mq-label { font-weight: var(--mq-weight-bold); color: var(--mq-gray-800); font-size: 13px; display: block; margin-bottom: 6px; letter-spacing: var(--mq-tracking-body); }
.mq-hint { margin-top: 6px; font-size: 12px; color: var(--mq-gray-500); }
.mq-hint--error { color: var(--mq-error-dark); font-weight: 600; }

.mq-input--pin {
  font-family: var(--mq-font-mono); font-weight: 900; letter-spacing: .4rem;
  text-align: center; font-size: 22px; color: var(--mq-primary);
}
.mq-input--select {
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 44px; cursor: pointer;
}


/* ============ CARDS ============ */
.mq-card {
  background: var(--mq-white);
  border: 1px solid var(--mq-gray-200);
  border-radius: var(--mq-radius-card);
  padding: 24px;
  box-shadow: var(--mq-shadow-card);
  transition: transform var(--mq-transition-base), box-shadow var(--mq-transition-base);
}
.mq-card--hover:hover { transform: translateY(-4px); box-shadow: var(--mq-shadow-card-hover); }
.mq-card--elevated { box-shadow: var(--mq-shadow-lg); border: 0; }
.mq-card--flat { box-shadow: none; }
.mq-card--dark { background: #1e1b4b; color: var(--mq-white); border-color: rgba(255,255,255,.1); }


/* ============ BADGES ============ */
.mq-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: var(--mq-radius-full);
  font-size: 11px; font-weight: var(--mq-weight-bold);
  letter-spacing: .04em; text-transform: uppercase;
  background: var(--mq-gray-100); color: var(--mq-gray-700);
}
.mq-badge--success { background: var(--mq-success-light); color: var(--mq-success-dark); }
.mq-badge--error   { background: var(--mq-error-light);   color: var(--mq-error-dark); }
.mq-badge--warning { background: var(--mq-warning-light); color: var(--mq-warning-dark); }
.mq-badge--info    { background: var(--mq-info-light);    color: var(--mq-info-dark); }
.mq-badge--grad    { background: var(--mq-gradient-button); color: var(--mq-white); }


/* ============ PIN DISPLAY ============ */
.mq-pin-display {
  font-family: var(--mq-font-mono); font-weight: 900;
  font-size: 56px; letter-spacing: .5rem;
  color: var(--mq-white);
  background: rgba(255,255,255,.1);
  padding: 16px 32px;
  border-radius: var(--mq-radius-lg);
  display: inline-block;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.2);
}


/* ============ MODAL ============ */
.mq-modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, .7);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  z-index: var(--mq-z-modal);
  padding: 20px;
  animation: mqFadeIn var(--mq-dur-base) var(--mq-ease);
}
.mq-modal {
  background: var(--mq-white);
  border-radius: var(--mq-radius-xl);
  padding: 32px;
  max-width: 500px; width: 100%;
  max-height: 90vh; overflow-y: auto;
  box-shadow: var(--mq-shadow-xl);
  position: relative;
  animation: mqModalIn var(--mq-dur-base) var(--mq-ease-out);
}
.mq-modal--dark {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
  color: var(--mq-white);
}
.mq-modal--lg { max-width: 720px; }
.mq-modal__close {
  position: absolute; top: 16px; right: 16px;
  background: rgba(0,0,0,.06); border: 0;
  width: 36px; height: 36px; border-radius: 50%;
  font-size: 18px; cursor: pointer; color: inherit;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--mq-dur-fast) var(--mq-ease);
}
.mq-modal__close:hover { background: rgba(0,0,0,.12); }
.mq-modal--dark .mq-modal__close { background: rgba(255,255,255,.1); color: var(--mq-white); }
.mq-modal--dark .mq-modal__close:hover { background: rgba(255,255,255,.2); }
.mq-modal__title { font-size: 22px; font-weight: 800; margin: 0 0 8px; }
.mq-modal__subtitle { color: var(--mq-fg-2); margin: 0 0 24px; font-size: 15px; }
.mq-modal__footer { display: flex; justify-content: flex-end; gap: 12px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--mq-border); }


/* ============ TOAST / NOTIFICATION ============ */
.mq-toast-stack {
  position: fixed; top: 20px; right: 20px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: var(--mq-z-toast); pointer-events: none;
}
.mq-toast {
  pointer-events: auto;
  min-width: 280px; max-width: 380px;
  background: var(--mq-white); color: var(--mq-fg-1);
  border-radius: var(--mq-radius-md);
  padding: 14px 16px;
  box-shadow: var(--mq-shadow-lg);
  border-left: 4px solid var(--mq-info);
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14px; line-height: 1.45;
  animation: mqToastIn 400ms var(--mq-ease-out);
}
.mq-toast--success { border-left-color: var(--mq-success); }
.mq-toast--error   { border-left-color: var(--mq-error); }
.mq-toast--warning { border-left-color: var(--mq-warning); }
.mq-toast__icon { flex: 0 0 20px; font-size: 18px; line-height: 1; }
.mq-toast__title { font-weight: 700; margin: 0 0 2px; }
.mq-toast__body  { color: var(--mq-fg-2); margin: 0; }
.mq-toast__close { margin-left: auto; background: transparent; border: 0; color: var(--mq-fg-3); cursor: pointer; font-size: 16px; }


/* ============ ANSWER TILES (A/B/C/D — quiz core) ============ */
.mq-answers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 800px; margin: 0 auto;
}
.mq-answer {
  display: flex; align-items: center; gap: 14px;
  padding: 20px 22px;
  border: 0; border-radius: var(--mq-radius-lg);
  font-size: 17px; font-weight: 700;
  color: var(--mq-white); text-align: left;
  cursor: pointer; font-family: inherit;
  transition: transform var(--mq-dur-fast) var(--mq-ease), box-shadow var(--mq-dur-fast) var(--mq-ease), filter var(--mq-dur-fast) var(--mq-ease);
  min-height: 80px;
  position: relative; overflow: hidden;
}
.mq-answer:hover:not(:disabled) { transform: translateY(-3px) scale(1.01); box-shadow: var(--mq-shadow-lg); }
.mq-answer:active:not(:disabled) { transform: translateY(0); }
.mq-answer:disabled { cursor: not-allowed; }

.mq-answer[data-variant="a"] { background: var(--mq-grad-red); }
.mq-answer[data-variant="b"] { background: var(--mq-grad-blue); }
.mq-answer[data-variant="c"] { background: var(--mq-grad-amber); }
.mq-answer[data-variant="d"] { background: var(--mq-grad-green); }

.mq-answer__letter {
  flex: 0 0 40px; height: 40px;
  background: rgba(0,0,0,.25);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 900;
}
.mq-answer__text { flex: 1; line-height: 1.3; }
.mq-answer--correct   { outline: 4px solid #10b981; outline-offset: -4px; animation: mqPulse 600ms var(--mq-ease); }
.mq-answer--incorrect { filter: grayscale(.6) brightness(.7); }
.mq-answer--revealed  { filter: grayscale(.8) brightness(.6); }

@media (max-width: 640px) {
  .mq-answers { grid-template-columns: 1fr; gap: 10px; }
  .mq-answer { min-height: 64px; padding: 14px 16px; font-size: 15px; }
}


/* ============ TIMER ============ */
.mq-timer {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  background: rgba(255,255,255,.15);
  backdrop-filter: blur(10px);
  border-radius: var(--mq-radius-full);
  color: var(--mq-white);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  font-size: 18px;
  border: 1px solid rgba(255,255,255,.2);
}
.mq-timer__icon { font-size: 16px; }
.mq-timer--warning { color: #fde68a; border-color: rgba(251, 191, 36, .6); }
.mq-timer--danger  { color: #fecaca; border-color: rgba(239, 68, 68, .6); animation: mqPulse 500ms infinite; }

.mq-timer-ring {
  --mq-progress: 1;
  width: 72px; height: 72px;
  display: grid; place-items: center;
  background:
    conic-gradient(var(--mq-accent) calc(var(--mq-progress) * 360deg), rgba(255,255,255,.15) 0);
  border-radius: 50%;
  position: relative;
}
.mq-timer-ring::before {
  content: ""; position: absolute; inset: 6px;
  background: var(--mq-grad-mid); border-radius: 50%;
}
.mq-timer-ring__value { position: relative; z-index: 1; color: var(--mq-white); font-weight: 900; font-size: 22px; font-variant-numeric: tabular-nums; }


/* ============ LEADERBOARD ============ */
.mq-leaderboard { display: flex; flex-direction: column; gap: 8px; max-width: 520px; margin: 0 auto; }
.mq-leaderboard__row {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px;
  background: var(--mq-white);
  border-radius: var(--mq-radius-md);
  box-shadow: var(--mq-shadow-sm);
  transition: transform var(--mq-dur-base) var(--mq-ease);
}
.mq-leaderboard__row--self { outline: 2px solid var(--mq-primary); }
.mq-leaderboard__row--1 { background: linear-gradient(135deg, #fde68a, #fbbf24); }
.mq-leaderboard__row--2 { background: linear-gradient(135deg, #e5e7eb, #cbd5e1); }
.mq-leaderboard__row--3 { background: linear-gradient(135deg, #fed7aa, #fb923c); }
.mq-leaderboard__rank { flex: 0 0 32px; font-weight: 900; font-size: 18px; color: var(--mq-fg-1); text-align: center; }
.mq-leaderboard__name { flex: 1; font-weight: 600; }
.mq-leaderboard__score { font-weight: 900; font-variant-numeric: tabular-nums; color: var(--mq-primary); }


/* ============ AVATAR ============ */
.mq-avatar {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--mq-gradient-button);
  color: var(--mq-white);
  font-weight: 800; font-size: 15px;
  overflow: hidden; flex-shrink: 0;
  user-select: none;
}
.mq-avatar img { width: 100%; height: 100%; object-fit: cover; }
.mq-avatar--sm { width: 28px; height: 28px; font-size: 12px; }
.mq-avatar--lg { width: 64px; height: 64px; font-size: 22px; }
.mq-avatar--xl { width: 96px; height: 96px; font-size: 32px; }
.mq-avatar-stack { display: inline-flex; }
.mq-avatar-stack .mq-avatar { border: 2px solid var(--mq-white); margin-left: -10px; }
.mq-avatar-stack .mq-avatar:first-child { margin-left: 0; }


/* ============ TABS ============ */
.mq-tabs {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--mq-gray-100);
  border-radius: var(--mq-radius-full);
}
.mq-tab {
  padding: 10px 20px;
  background: transparent;
  border: 0; cursor: pointer;
  border-radius: var(--mq-radius-full);
  font-family: inherit; font-weight: 600;
  color: var(--mq-fg-2);
  transition: background var(--mq-dur-fast) var(--mq-ease), color var(--mq-dur-fast) var(--mq-ease);
}
.mq-tab:hover { color: var(--mq-fg-1); }
.mq-tab[aria-selected="true"],
.mq-tab--active {
  background: var(--mq-gradient-button);
  color: var(--mq-white);
  box-shadow: var(--mq-shadow);
}


/* ============ DROPDOWN / MENU ============ */
.mq-menu {
  background: var(--mq-white);
  border-radius: var(--mq-radius-md);
  box-shadow: var(--mq-shadow-lg);
  border: 1px solid var(--mq-border);
  padding: 6px;
  min-width: 180px;
  z-index: var(--mq-z-dropdown);
}
.mq-menu__item {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 10px 12px;
  background: transparent; border: 0; cursor: pointer;
  border-radius: var(--mq-radius-sm);
  font-family: inherit; font-size: 14px;
  color: var(--mq-fg-1); text-align: left;
  transition: background var(--mq-dur-fast) var(--mq-ease);
}
.mq-menu__item:hover { background: var(--mq-gray-100); }
.mq-menu__item--danger { color: var(--mq-error-dark); }
.mq-menu__item--danger:hover { background: var(--mq-error-light); }
.mq-menu__sep { height: 1px; background: var(--mq-border); margin: 6px 4px; }


/* ============ PROGRESS ============ */
.mq-progress {
  width: 100%; height: 8px;
  background: var(--mq-gray-100);
  border-radius: var(--mq-radius-full);
  overflow: hidden;
}
.mq-progress__bar {
  height: 100%;
  background: var(--mq-gradient-button);
  border-radius: inherit;
  transition: width var(--mq-dur-base) var(--mq-ease);
}
.mq-progress--cta .mq-progress__bar { background: var(--mq-gradient-cta); }
.mq-progress--success .mq-progress__bar { background: var(--mq-gradient-success); }
.mq-progress__steps {
  display: flex; gap: 6px; margin-top: 8px;
}
.mq-progress__step {
  flex: 1; height: 4px;
  background: var(--mq-gray-200);
  border-radius: var(--mq-radius-full);
}
.mq-progress__step--done { background: var(--mq-primary); }
.mq-progress__step--current { background: var(--mq-accent); }


/* ============ SPINNER ============ */
.mq-spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2.5px solid rgba(99, 102, 241, .2);
  border-top-color: var(--mq-primary);
  border-radius: 50%;
  animation: mqSpin 800ms linear infinite;
}
.mq-spinner--sm { width: 14px; height: 14px; border-width: 2px; }
.mq-spinner--lg { width: 40px; height: 40px; border-width: 4px; }
.mq-spinner--on-dark { border-color: rgba(255,255,255,.3); border-top-color: var(--mq-white); }


/* ============ SKELETON ============ */
.mq-skeleton {
  background: linear-gradient(90deg, var(--mq-gray-100) 0%, var(--mq-gray-200) 50%, var(--mq-gray-100) 100%);
  background-size: 200% 100%;
  border-radius: var(--mq-radius-sm);
  animation: mqShimmer 1.4s infinite;
}
.mq-skeleton--text { height: 14px; }
.mq-skeleton--title { height: 24px; }
.mq-skeleton--avatar { width: 40px; height: 40px; border-radius: 50%; }


/* ============ TOOLTIP ============ */
.mq-tooltip {
  position: relative;
  display: inline-flex;
}
.mq-tooltip[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px); left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 10px;
  background: var(--mq-gray-900); color: var(--mq-white);
  border-radius: 6px;
  font-size: 12px; font-weight: 500;
  white-space: nowrap;
  opacity: 0; pointer-events: none;
  transition: opacity var(--mq-dur-fast), transform var(--mq-dur-fast);
  z-index: var(--mq-z-tooltip);
}
.mq-tooltip[data-tip]:hover::after {
  opacity: 1; transform: translateX(-50%) translateY(0);
}


/* ============ CHAT BUBBLE ============ */
.mq-bubble {
  max-width: 75%;
  padding: 10px 14px;
  border-radius: var(--mq-radius-lg);
  font-size: 14px; line-height: 1.4;
  background: var(--mq-gray-100); color: var(--mq-fg-1);
}
.mq-bubble--me { background: var(--mq-gradient-button); color: var(--mq-white); border-bottom-right-radius: 4px; margin-left: auto; }
.mq-bubble--them { border-bottom-left-radius: 4px; }
.mq-bubble__meta { display: block; font-size: 11px; opacity: .7; margin-top: 4px; }


/* ============ GRADIENT BACKGROUNDS ============ */
.mq-bg-hero { background: var(--mq-gradient-landing); color: var(--mq-white); }
.mq-bg-surface { background: var(--mq-bg-surface); color: var(--mq-fg-1); }
.mq-bg-subtle  { background: var(--mq-bg-subtle); }


/* ============ KEYFRAMES ============ */
@keyframes mqFadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes mqModalIn { from { opacity: 0; transform: translateY(16px) scale(.96); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes mqToastIn { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: translateX(0); } }
@keyframes mqSpin   { to { transform: rotate(360deg); } }
@keyframes mqShimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
@keyframes mqPulse  { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.02); } }


/* ============ GLASS CARD MODIFIER ============ */
.mq-card--glass {
  background: var(--mq-glass-bg);
  backdrop-filter: var(--mq-glass-blur);
  -webkit-backdrop-filter: var(--mq-glass-blur);
  border: 1px solid var(--mq-glass-border);
  color: var(--mq-white);
  box-shadow: none;
}


/* ============ PILL (floating UI label, not a tag-badge) ============ */
.mq-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  background: var(--mq-gray-100); color: var(--mq-fg-1);
  border: 1px solid transparent;
  border-radius: var(--mq-radius-pill);
  font-weight: var(--mq-weight-semi); font-size: var(--mq-text-small);
  line-height: 1.2;
}
.mq-pill--glass {
  background: var(--mq-glass-bg);
  backdrop-filter: var(--mq-glass-blur);
  -webkit-backdrop-filter: var(--mq-glass-blur);
  border-color: var(--mq-glass-border);
  color: var(--mq-white);
}
.mq-pill--lg { padding: 14px 22px; font-size: var(--mq-text-body); }


/* ============ CHIP (tag-button, hover gradient fill) ============ */
.mq-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 18px;
  background: var(--mq-gray-100); color: var(--mq-fg-1);
  border: 1px solid transparent;
  border-radius: var(--mq-radius-pill);
  font-family: inherit;
  font-weight: var(--mq-weight-medium);
  font-size: var(--mq-text-small);
  line-height: 1.2;
  cursor: pointer;
  transition: background var(--mq-transition-base),
              color var(--mq-transition-base),
              transform var(--mq-transition-base),
              box-shadow var(--mq-transition-base),
              border-color var(--mq-transition-base);
}
.mq-chip:hover {
  background: var(--mq-gradient-button); color: var(--mq-white);
  transform: translateY(-1px); box-shadow: var(--mq-shadow-card);
}
.mq-chip--glass {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--mq-glass-border);
  color: var(--mq-white);
}
.mq-chip--glass:hover {
  background: var(--mq-gradient-button); border-color: transparent;
}


/* ============ PODIUM (3D blocks for top-3 results) ============ */
.mq-podium {
  display: flex; align-items: end; justify-content: center;
  gap: 12px;
  max-width: 560px;
  margin: 0 auto;
}
.mq-podium__col {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  flex: 1;
  max-width: 180px;
}
.mq-podium__block {
  width: 100%;
  background: linear-gradient(180deg, var(--mq-glass-bg-strong), var(--mq-glass-bg));
  border: 1px solid var(--mq-glass-border);
  border-bottom: 0;
  border-radius: var(--mq-radius-md) var(--mq-radius-md) 0 0;
  box-shadow: inset 0 -4px 12px rgba(0, 0, 0, 0.15);
}
.mq-podium__block--1st { height: 160px; }
.mq-podium__block--2nd { height: 120px; }
.mq-podium__block--3rd { height: 90px; }


/* ============ LEADERBOARD ON-DARK (4+ rows on dark gradient pages) ============ */
.mq-leaderboard--on-dark .mq-leaderboard__row {
  background: var(--mq-glass-bg);
  backdrop-filter: var(--mq-glass-blur-soft);
  -webkit-backdrop-filter: var(--mq-glass-blur-soft);
  border: 1px solid var(--mq-glass-border);
  box-shadow: none;
  color: var(--mq-white);
}
.mq-leaderboard--on-dark .mq-leaderboard__rank,
.mq-leaderboard--on-dark .mq-leaderboard__name { color: var(--mq-white); }
.mq-leaderboard--on-dark .mq-leaderboard__score { color: var(--mq-accent); }
.mq-leaderboard--on-dark .mq-leaderboard__row--self {
  outline: 2px solid var(--mq-accent);
  background: rgba(255, 255, 255, 0.16);
}
/* Top-3 rows keep their built-in gold/silver/bronze gradients — they read fine on dark too. */