@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700;800&display=swap');

/* Design system: "Luminous Cognition" — midnight violet + glassmorphism */
:root {
  --bg: #151120;
  --bg-card: #211d2d;
  --bg-card-hover: #2c2837;
  --border: #4a4452;
  --text: #e7dff5;
  --text-dim: #b3a9c2;
  --accent: #d2bbff;
  --accent-dim: #a17cec;
  --warn: #ffb866;
  --bad: #ffb4ab;
  --good: #70db99;
  --glass: rgba(255, 255, 255, 0.055);
  --glass-border: rgba(255, 255, 255, 0.11);
}

body[data-game="ufov"]         { --accent: #4ad9e4; --accent-dim: #2a8a92; }
body[data-game="exergame"]     { --accent: #ff5fa3; --accent-dim: #b53977; }
body[data-game="dual-n-back"]  { --accent: #a78bfa; --accent-dim: #6d4ec7; }
body[data-game="n-back"]       { --accent: #4ad9e4; --accent-dim: #2a8a92; }
body[data-game="reaction"]     { --accent: #4ade80; --accent-dim: #16a34a; }
body[data-game="math"]         { --accent: #f5b342; --accent-dim: #ad7a19; }
body[data-game="stroop"]       { --accent: #f472b6; --accent-dim: #b3437f; }
body[data-game="digit-span"]   { --accent: #60a5fa; --accent-dim: #2563eb; }
body[data-game="visual-search"]{ --accent: #fb923c; --accent-dim: #c2541b; }
body[data-game="trail"]        { --accent: #22d3ee; --accent-dim: #0c8aa6; }
body[data-game="estimation"]   { --accent: #facc15; --accent-dim: #a48413; }
body[data-game="simon"]        { --accent: #f97316; --accent-dim: #b54e0e; }
body[data-game="flexibility"]  { --accent: #c084fc; --accent-dim: #8344c0; }
body[data-game="mot"]          { --accent: #f43f5e; --accent-dim: #a51a3a; }
body[data-game="rotation"]     { --accent: #14b8a6; --accent-dim: #0d7a6e; }
body[data-game="pattern"]      { --accent: #818cf8; --accent-dim: #4f5fd9; }

.screen {
  animation: screen-fade-in 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes screen-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn:not(:disabled):hover { box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 55%, transparent); }

.zikof-confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1000;
}

.zikof-confetti-piece {
  position: absolute;
  top: -20px;
  width: 8px;
  height: 14px;
  border-radius: 2px;
  animation: confetti-fall linear forwards;
  --rot: 360deg;
  --drift: 0px;
}

@keyframes confetti-fall {
  0% { transform: translate3d(0, 0, 0) rotate(0deg); opacity: 1; }
  100% { transform: translate3d(var(--drift), 110vh, 0) rotate(var(--rot)); opacity: 0.4; }
}

.result-grade.grade-pop {
  animation: grade-pop 0.7s cubic-bezier(0.16, 1.6, 0.3, 1);
}

@keyframes grade-pop {
  0% { transform: scale(0.4); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.result-motivation {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.55;
  font-style: italic;
  animation: motivation-in 0.5s ease 0.2s both;
}

@keyframes motivation-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes cell-appear {
  0% { transform: scale(0.86); }
  60% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

/* ---- Accessibilité ---- */
*:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.btn:focus-visible,
.zk-tab:focus-visible,
.zk-brand:focus-visible,
.zk-topbar-btn:focus-visible {
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.05ms !important;
    scroll-behavior: auto !important;
  }
  .card-link:hover, .btn:not(:disabled):hover { transform: none !important; }
  .zikof-confetti, .zk-badge-toast { display: none !important; }
}

@media (hover: none) {
  .card-link:hover { transform: none; }
  .btn:not(:disabled):hover { transform: none; }
}

/* ---- App shell (top bar + bottom nav, injected by lib.js) ---- */
body.zk-has-shell { padding-top: 70px; padding-bottom: 84px; }

.zk-topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 90;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
}

.zk-brand {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 3px;
  text-decoration: none;
}

.zk-brand-name {
  font-weight: 900;
  font-size: 17px;
  letter-spacing: 0.07em;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 40%, #ffffff));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.zk-brand-tag {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}

.zk-topbar-btn {
  display: flex;
  color: var(--text-dim);
  text-decoration: none;
}
.zk-topbar-btn:hover { color: var(--accent); }
.zk-topbar-btn svg { width: 24px; height: 24px; }

.zk-bottomnav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 66px;
  z-index: 90;
  background: color-mix(in srgb, var(--bg-card) 92%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-top: 1px solid var(--glass-border);
  border-radius: 22px 22px 0 0;
  box-shadow: 0 -10px 34px rgba(0, 0, 0, 0.4);
}

.zk-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: color-mix(in srgb, var(--text-dim) 70%, transparent);
  text-decoration: none;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color 0.15s, transform 0.15s;
  padding: 4px 8px;
}

.zk-tab svg { width: 23px; height: 23px; }
.zk-tab:hover { color: var(--text); }

.zk-tab.active {
  color: var(--accent);
  transform: scale(1.08);
}

.zk-tab.active svg { filter: drop-shadow(0 0 6px var(--accent)); }

.zk-lives {
  position: fixed;
  top: 63px;
  right: 14px;
  display: none;
  gap: 5px;
  z-index: 88;
  padding: 5px 11px;
  background: color-mix(in srgb, var(--bg-card) 88%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
}

.zk-lives.visible { display: flex; }

.zk-heart {
  width: 19px;
  height: 19px;
  color: var(--bad);
  transition: color 0.25s;
  filter: drop-shadow(0 0 4px color-mix(in srgb, var(--bad) 55%, transparent));
}

.zk-heart svg { width: 100%; height: 100%; display: block; }

.zk-heart.empty {
  color: var(--border);
  filter: none;
}

.zk-heart.pop { animation: heart-pop 0.45s ease; }

.zk-badge-toast {
  position: fixed;
  top: 64px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 30%, var(--bg-card)), var(--bg-card));
  border: 1px solid var(--accent);
  border-radius: 16px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 100;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45), 0 0 30px color-mix(in srgb, var(--accent) 25%, transparent);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.16, 1.4, 0.3, 1), opacity 0.3s;
  pointer-events: none;
  max-width: 90vw;
}

.zk-badge-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.zk-badge-icon {
  font-size: 38px;
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--accent) 55%, transparent));
}

.zk-badge-text { text-align: left; }
.zk-badge-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent);
  font-weight: 700;
}
.zk-badge-name {
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
  margin-top: 2px;
}

@keyframes heart-pop {
  0% { transform: scale(1); }
  35% { transform: scale(1.55) rotate(-12deg); }
  70% { transform: scale(0.85); }
  100% { transform: scale(1); }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(circle at 12% 6%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 40%),
    radial-gradient(circle at 88% 96%, color-mix(in srgb, var(--warn) 8%, transparent), transparent 42%),
    radial-gradient(ellipse at top, #2a2046 0%, var(--bg) 62%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 540px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

h1 {
  font-size: 34px;
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.subtitle {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 4px;
}

.back-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
}

.back-link:hover { text-decoration: underline; }

.card {
  background: var(--glass);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 20px;
  margin-bottom: 16px;
  transition: background 0.18s, border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}

.card-link {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.card-link:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35),
              0 0 26px color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

.card-link:active { transform: translateY(-1px) scale(0.99); }

.card-icon {
  font-size: 40px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border-radius: 14px;
  color: var(--accent);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.card-desc {
  font-size: 13px;
  color: var(--text-dim);
}

.card-best {
  font-size: 12px;
  color: var(--accent);
  margin-top: 6px;
  font-weight: 600;
}

.card-best:empty { display: none; }

.footer-note {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  margin-top: 20px;
  padding: 0 12px;
}

.level-toast {
  position: fixed;
  top: 68px;
  left: 50%;
  transform: translateX(-50%) translateY(-80px);
  background: var(--accent);
  color: var(--bg);
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  z-index: 99;
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
  pointer-events: none;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}

.level-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.level-toast.demote {
  background: var(--warn);
}

.adaptive-badge {
  display: inline-block;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
  letter-spacing: 0.3px;
}

.card-link.in-session {
  border-color: var(--accent-dim);
  position: relative;
}

.card-link.in-session::after {
  content: "Session";
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.evidence-card {
  padding: 12px 14px !important;
}

.evidence-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.evidence-icon {
  font-size: 18px;
  font-weight: 800;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.evidence-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.evidence-strong {
  border-left: 4px solid var(--good);
}
.evidence-strong .evidence-icon {
  background: rgba(74, 222, 128, 0.2);
  color: var(--good);
}
.evidence-strong .evidence-label { color: var(--good); }

.evidence-mixed {
  border-left: 4px solid var(--warn);
}
.evidence-mixed .evidence-icon {
  background: rgba(245, 179, 66, 0.2);
  color: var(--warn);
}
.evidence-mixed .evidence-label { color: var(--warn); }

.evidence-task {
  border-left: 4px solid var(--text-dim);
}
.evidence-task .evidence-icon {
  background: rgba(155, 176, 201, 0.15);
  color: var(--text-dim);
}
.evidence-task .evidence-label { color: var(--text-dim); }

.evidence-physical {
  border-left: 4px solid #e44a8f;
}
.evidence-physical .evidence-icon {
  background: rgba(228, 74, 143, 0.2);
  color: #e44a8f;
}
.evidence-physical .evidence-label { color: #e44a8f; }

.evidence-detail {
  font-size: 12.5px;
  color: var(--text);
  line-height: 1.5;
  margin: 0 0 6px 0;
}

.evidence-citation {
  font-size: 11px;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.4;
  margin: 0;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}

.evidence-mini {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.evidence-mini.strong { color: var(--good); }
.evidence-mini.mixed { color: var(--warn); }
.evidence-mini.task { color: var(--text-dim); }
.evidence-mini.physical { color: #e44a8f; }

.card-link.recommended {
  border-left: 4px solid var(--good);
}

.hero-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 28%, transparent), var(--glass));
  border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
  border-radius: 28px;
  padding: 22px 20px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 0 34px color-mix(in srgb, var(--accent) 22%, transparent);
  cursor: pointer;
}

.hero-card:hover {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 38%, transparent), var(--bg-card-hover));
  transform: translateY(-3px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 12px 40px color-mix(in srgb, var(--accent) 30%, transparent);
}

.hero-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
}

.hero-value {
  font-size: 38px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
}

.hero-sub {
  font-size: 13px;
  color: var(--text-dim);
}

.hero-icon {
  font-size: 52px;
  color: var(--accent);
  opacity: 0.8;
}

.sound-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  margin-top: 10px;
}

.sound-toggle:hover { border-color: var(--accent-dim); color: var(--text); }

.disclaimer-card {
  border-left: 4px solid var(--warn);
  background: rgba(245, 179, 66, 0.04);
}

.disclaimer-card .section-title {
  color: var(--warn);
}

.btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #1c0f33;
  border: none;
  border-radius: 999px;
  padding: 16px 24px;
  min-height: 54px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.01em;
  font-family: inherit;
  cursor: pointer;
  width: 100%;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 6px 22px color-mix(in srgb, var(--accent) 26%, transparent);
  transition: transform 0.15s cubic-bezier(0.16, 1.4, 0.3, 1),
              box-shadow 0.2s, opacity 0.15s;
}

.btn:not(:disabled):hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 12px 30px color-mix(in srgb, var(--accent) 38%, transparent);
}
.btn:not(:disabled):active { transform: scale(0.96) translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  box-shadow: none;
}

.btn-ghost:not(:disabled):hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 30%, transparent);
}

.tag {
  display: inline-block;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.screen.hidden { display: none; }

.section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.instructions {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
}

.instructions kbd {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: monospace;
  font-size: 13px;
}

.level-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.level-btn {
  flex: 1;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.level-btn:hover { border-color: var(--accent-dim); }

.level-btn.active {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border-color: var(--accent);
  color: var(--accent);
}

.level-desc {
  font-size: 13px;
  color: var(--text-dim);
}

.hud {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.hud-item {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  text-align: center;
}

.hud-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.hud-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.hint {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  margin-top: 10px;
}

.result-card {
  text-align: center;
  padding: 28px 20px;
}

.result-headline {
  font-size: 20px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.result-grade {
  font-size: 72px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 24px;
}

.result-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  text-align: left;
}

.stat {
  background: var(--bg);
  border-radius: 10px;
  padding: 12px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 20px;
  font-weight: 700;
}

.daily-banner {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 16%, transparent), color-mix(in srgb, var(--accent) 5%, transparent));
  border: 1px solid var(--accent-dim);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.daily-banner-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.daily-banner-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
}

.daily-banner-count {
  font-size: 12px;
  color: var(--text-dim);
  text-align: right;
}

/* ── PWA install banner ─────────────────────────────────────── */
.zk-install-banner {
  position: fixed;
  bottom: 80px;        /* above bottom nav if present */
  left: 50%;
  transform: translateX(-50%);
  width: min(calc(100vw - 32px), 480px);
  background: linear-gradient(135deg, rgba(210,187,255,0.18), rgba(255,184,102,0.10));
  backdrop-filter: blur(24px) saturate(1.6);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  border: 1px solid rgba(210,187,255,0.25);
  border-radius: 16px;
  padding: 14px 14px 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 9000;
  box-shadow: 0 8px 32px rgba(0,0,0,0.40);
  animation: zk-slide-up 0.35s cubic-bezier(0.34,1.56,0.64,1) both;
}

@keyframes zk-slide-up {
  from { opacity: 0; transform: translateX(-50%) translateY(24px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0);    }
}

.zk-install-icon {
  font-size: 26px;
  flex-shrink: 0;
  line-height: 1;
}

.zk-install-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.zk-install-text strong {
  font-size: 14px;
  color: var(--text);
  font-weight: 700;
}

.zk-install-text span {
  font-size: 12px;
  color: var(--text-dim);
}

.zk-install-cta {
  font-size: 13px;
  padding: 8px 16px;
  flex-shrink: 0;
  min-width: 0;
}

.zk-install-dismiss {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 16px;
  padding: 4px 6px;
  flex-shrink: 0;
  line-height: 1;
  transition: color 0.15s;
}
.zk-install-dismiss:hover { color: var(--text); }

/* ── Overlay modal (chained: comeback / milestone / first-hint / etc.) ── */
.zk-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: zk-overlay-fade 0.32s ease;
}
@keyframes zk-overlay-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.zk-overlay-card {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 26%, var(--bg-card)), var(--bg-card));
  border: 1px solid var(--accent);
  border-radius: 28px;
  padding: 30px 24px;
  text-align: center;
  max-width: 380px;
  width: 100%;
  box-shadow: 0 0 60px color-mix(in srgb, var(--accent) 35%, transparent);
}
.zk-overlay-card.warm {
  border-color: var(--warn);
  background: linear-gradient(135deg, color-mix(in srgb, var(--warn) 24%, var(--bg-card)), var(--bg-card));
  box-shadow: 0 0 60px color-mix(in srgb, var(--warn) 30%, transparent);
}
.zk-overlay-icon {
  font-size: 76px;
  display: inline-block;
  animation: zk-overlay-pop 0.9s cubic-bezier(0.16, 1.6, 0.3, 1);
  margin-bottom: 6px;
  line-height: 1;
}
@keyframes zk-overlay-pop {
  0%   { transform: scale(0.4); opacity: 0; }
  60%  { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); }
}
.zk-overlay-title {
  font-size: 26px;
  font-weight: 900;
  color: var(--text);
  margin: 6px 0 8px;
  letter-spacing: -0.01em;
}
.zk-overlay-sub {
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.55;
  margin-bottom: 18px;
}
.zk-overlay-reward {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 18px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 14px;
  margin-bottom: 18px;
}
.zk-overlay-reward-line { font-size: 13px; color: var(--text); font-weight: 700; }
.zk-overlay-reward-line.dim { color: var(--text-dim); font-weight: 500; font-size: 12px; }
.zk-overlay-secondary {
  display: block;
  text-align: center;
  margin-top: 12px;
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
}
.zk-overlay-secondary:hover { text-decoration: underline; }

/* First-visit hint bullets */
.zk-first-hint-bullets {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  margin: 18px 0 22px;
}
.zk-first-hint-bullet {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(0, 0, 0, 0.18);
  border-radius: 12px;
  padding: 12px 14px;
}
.zk-first-hint-num {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  font-weight: 800;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.zk-first-hint-text { font-size: 14px; color: var(--text); line-height: 1.5; }