/* LINGO — chrome and view styles. */

.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ======================================================================
   Wordmark
   ====================================================================== */

.logo {
  display: inline-flex;
  align-items: center;
  color: var(--text);
  text-decoration: none;
  flex: none;
}

.logo-word {
  display: inline-flex;
  align-items: center;
  gap: 0.02em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  line-height: 1;
}

.logo-lg .logo-word { font-size: 2rem; }
.logo-sm .logo-word { font-size: 1.05rem; }

.logo-portal {
  color: var(--accent);
  margin-left: 0.04em;
  margin-bottom: -0.06em;
  overflow: visible;
}

.logo-orbit {
  transform-origin: 20px 20px;
  animation: orbit 9s linear infinite;
}
@media (prefers-reduced-motion: reduce) { .logo-orbit { animation: none; } }

.logo:hover .logo-portal { filter: drop-shadow(0 0 10px var(--accent-glow)); }

/* ======================================================================
   Public header
   ====================================================================== */

.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 90;
  background: rgba(8, 9, 12, 0.72);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid var(--line);
}

.site-header-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  height: var(--topbar-h);
}

.site-nav { display: flex; gap: var(--sp-2); flex: 1; }

.site-nav-link {
  padding: 8px 12px;
  border-radius: var(--r-sm);
  color: var(--text-2);
  font-size: var(--step--1);
  font-weight: 500;
  transition: color var(--t) var(--ease), background var(--t) var(--ease);
}
.site-nav-link:hover { color: var(--text); background: var(--surface); }

.site-header-actions { display: flex; align-items: center; gap: var(--sp-3); }
.site-burger { display: none; }

.site-drawer {
  display: none;
  flex-direction: column;
  gap: var(--sp-5);
  padding: var(--sp-5) var(--gutter) var(--sp-6);
  border-top: 1px solid var(--line);
  background: var(--ground-2);
}

.drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: var(--step-2);
  letter-spacing: -0.03em;
  color: var(--text);
}
.drawer-link .icon { color: var(--text-3); }
.drawer-foot { gap: var(--sp-3); }

/* ---- language switcher ---- */

.lang { position: relative; }

.lang-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--text-2);
  font-size: var(--step--1);
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  transition: all var(--t) var(--ease);
}
.lang-trigger:hover { color: var(--text); border-color: var(--line-lit); background: var(--surface); }

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 100;
  width: 220px;
  padding: 6px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-2);
  background: var(--surface-2);
  box-shadow: var(--shadow-3);
  animation: rise 160ms var(--ease-out) both;
}
.lang-up .lang-menu { top: auto; bottom: calc(100% + 8px); }

.lang-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 11px;
  border: 0;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text-2);
  font-size: var(--step--1);
  text-align: left;
}
.lang-item:hover { background: var(--surface-3); color: var(--text); }
.lang-item.is-active { color: var(--accent); }
.lang-item .mono { font-size: var(--step--2); opacity: 0.6; }

.lang-note {
  padding: 8px 11px 4px;
  color: var(--text-3);
  font-size: var(--step--2);
  line-height: 1.4;
  border-top: 1px solid var(--line);
  margin-top: 4px;
}

/* ======================================================================
   Hero
   ====================================================================== */

.hero { padding-block: clamp(48px, 8vw, 104px) clamp(40px, 6vw, 80px); position: relative; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.hero-copy { max-width: 36ch; }

.hero-h1 {
  font-size: var(--step-6);
  line-height: 0.92;
  letter-spacing: -0.045em;
  display: flex;
  flex-direction: column;
}
.hero-line-accent {
  color: var(--accent);
  text-shadow: 0 0 60px var(--accent-glow);
}

/* ---- the live dashboard ---- */

.hero-stage {
  position: relative;
  min-height: 460px;
  perspective: 1400px;
}

.hero-orb {
  position: absolute;
  inset: -12% -6% 8% -6%;
  background:
    radial-gradient(50% 50% at 40% 40%, rgba(200, 255, 77, 0.2), transparent 70%),
    radial-gradient(50% 50% at 70% 60%, rgba(91, 60, 240, 0.28), transparent 72%);
  filter: blur(46px);
  border-radius: 50%;
}

.hero-dash {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-5);
  border-radius: var(--r-xl);
  border: 1px solid var(--line-2);
  background: linear-gradient(180deg, rgba(29, 34, 44, 0.9), rgba(16, 19, 25, 0.94));
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-3), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  transform: rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  transform-style: preserve-3d;
  transition: transform 300ms var(--ease-out);
  max-width: 460px;
  margin-inline: auto;
}

.hero-dash-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); }

.hero-xp {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: var(--surface-inset);
  border: 1px solid var(--line);
}

.hero-xp-value {
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}

.hero-mission {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: linear-gradient(120deg, var(--accent-soft), transparent 70%);
  border: 1px solid var(--accent-line);
}

.hero-mission-emoji {
  font-size: 26px;
  line-height: 1;
  flex: none;
}

.hero-week {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 56px;
  padding-top: var(--sp-2);
}
.hero-bar {
  flex: 1;
  height: var(--h);
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  opacity: 0.85;
  transform-origin: bottom;
  animation: growBar 900ms var(--ease-out) both;
  animation-delay: var(--d);
}
.hero-bar:nth-child(4) { background: linear-gradient(180deg, #fff, var(--accent)); }

@keyframes growBar { from { transform: scaleY(0); } to { transform: scaleY(1); } }
@media (prefers-reduced-motion: reduce) { .hero-bar { animation: none; } }

.hero-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  border-radius: var(--r-md);
  background: rgba(22, 26, 34, 0.88);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow-2);
  font-size: var(--step--1);
  white-space: nowrap;
}
.hero-chip-icon { color: var(--text-2); display: grid; place-items: center; }
.hero-chip-1 { top: 4%; right: -2%; }
.hero-chip-2 { bottom: 14%; left: -6%; }
.hero-chip-3 { bottom: -2%; right: 6%; }

/* ======================================================================
   Marquee
   ====================================================================== */

.marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  border-block: 1px solid var(--line);
  padding-block: var(--sp-4);
}
.marquee-track {
  display: flex;
  gap: var(--sp-6);
  width: max-content;
  animation: marquee 38s linear infinite;
}
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }

.marquee-word {
  font-family: var(--font-display);
  font-size: var(--step-2);
  letter-spacing: -0.03em;
  color: var(--text-3);
  white-space: nowrap;
}
.marquee-word:nth-child(3n) { color: var(--accent); opacity: 0.75; }

/* ======================================================================
   Loop
   ====================================================================== */

.loop {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--sp-3);
  counter-reset: loop;
}

.loop-step {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface);
}
.loop-step::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 50%;
  width: 8px; height: 8px;
  border-top: 1px solid var(--line-2);
  border-right: 1px solid var(--line-2);
  transform: translateY(-50%) rotate(45deg);
}
.loop-step:last-child::after { display: none; }

.loop-index {
  font-size: var(--step--2);
  color: var(--text-3);
  opacity: 0.6;
  position: absolute;
  top: 12px; right: 14px;
}

.loop-icon {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  flex: none;
}

/* ======================================================================
   Features
   ====================================================================== */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: var(--sp-4);
}

.feature-card { display: flex; flex-direction: column; gap: var(--sp-3); }
.feature-card h3 { font-size: var(--step-2); }

.feature-icon {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: linear-gradient(140deg, var(--accent-soft), transparent);
  border: 1px solid var(--accent-line);
  color: var(--accent);
}

/* ======================================================================
   Level strip
   ====================================================================== */

.level-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--sp-3);
}

.level-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--sp-5) var(--sp-4);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--surface);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.level-card:hover { transform: translateY(-4px); border-color: var(--hue-line, var(--line-lit)); background: var(--surface-2); }
.level-card p { font-size: var(--step--1); line-height: 1.5; }

.level-card-code {
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--code, var(--accent));
}
.level-card.level-a1 { --code: var(--lvl-a1); }
.level-card.level-a2 { --code: var(--lvl-a2); }
.level-card.level-b1 { --code: var(--lvl-b1); }
.level-card.level-b2 { --code: var(--lvl-b2); }
.level-card.level-c1 { --code: var(--lvl-c1); }
.level-card.level-c2 { --code: var(--lvl-c2); }

.level-card-hours { font-size: var(--step--2); color: var(--text-3); margin-top: auto; }

/* ======================================================================
   Social / final CTA
   ====================================================================== */

.social-card { padding: clamp(24px, 4vw, 44px); }

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}

.social-row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-md);
  background: var(--surface-inset);
  border: 1px solid var(--line);
}
.social-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex: none;
  background: hsl(var(--hue) 80% 60%);
  box-shadow: 0 0 0 4px hsl(var(--hue) 80% 60% / 0.16);
}

.final-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
  text-align: center;
  padding: clamp(40px, 7vw, 80px) var(--sp-5);
  border-radius: var(--r-xl);
  border: 1px solid var(--line-2);
  background:
    radial-gradient(70% 120% at 50% 0%, rgba(200, 255, 77, 0.12), transparent 70%),
    var(--surface);
}

/* ======================================================================
   Footer
   ====================================================================== */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: clamp(40px, 6vw, 72px) var(--sp-5);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: var(--sp-6) var(--sp-5);
}

.footer-link {
  color: var(--text-3);
  font-size: var(--step--1);
  transition: color var(--t) var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-link:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-top: var(--sp-6);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--line);
  font-size: var(--step--2);
}

/* ======================================================================
   Pricing
   ====================================================================== */

.pricing-back {
  display: inline-flex;
  margin-bottom: var(--sp-5);
}

.pricing-head { align-items: center; text-align: center; }
.pricing-head .lede { margin-inline: auto; }
.cycle-tabs { max-width: 400px; margin-inline: auto; }

.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: var(--sp-4);
  margin-top: var(--sp-7);
  align-items: start;
}

.plan-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.plan-card.is-featured {
  border-color: var(--accent-line);
  background: linear-gradient(180deg, rgba(200, 255, 77, 0.06), var(--surface) 40%);
  box-shadow: var(--shadow-accent);
}
.plan-card.is-current { border-color: var(--line-lit); }

.plan-flag {
  position: absolute;
  top: -11px;
  left: var(--sp-5);
  padding: 3px 12px;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--text-on-accent);
  font-size: var(--step--2);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.plan-price { display: flex; align-items: baseline; gap: 6px; }
.plan-amount {
  font-family: var(--font-display);
  font-size: var(--step-5);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
}

.plan-features { display: flex; flex-direction: column; gap: 11px; }
.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: var(--step--1);
  color: var(--text-2);
  line-height: 1.45;
}
.plan-features li.is-missing { color: var(--text-3); opacity: 0.55; }
.plan-features .icon { margin-top: 2px; }

.pricing-note {
  text-align: center;
  font-size: var(--step--2);
  margin-top: var(--sp-5);
}

.faq {
  max-width: 720px;
  margin: var(--sp-8) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  padding: var(--sp-4) var(--sp-5);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon { transition: transform var(--t) var(--ease); color: var(--text-3); }
.faq-item[open] summary .icon { transform: rotate(180deg); }
.faq-item p { margin-top: var(--sp-3); font-size: var(--step--1); line-height: 1.6; }

/* ======================================================================
   Auth
   ====================================================================== */

.auth-view { min-height: 100vh; }

.auth-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  min-height: 100vh;
}

.auth-panel {
  display: flex;
  flex-direction: column;
  padding: var(--sp-5) var(--gutter);
  gap: var(--sp-5);
}

.auth-top { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); }

.auth-form-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--sp-6);
}

.auth-form { width: min(420px, 100%); }
.auth-h1 { font-size: var(--step-4); }

.auth-alt { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: var(--step--1); }

.link-sm {
  color: var(--accent);
  font-size: var(--step--1);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.link-sm:hover { text-decoration: underline; text-underline-offset: 3px; }

.auth-bottom { display: flex; justify-content: flex-start; }

.form-error {
  padding: 11px 14px;
  border-radius: var(--r-sm);
  background: rgba(255, 95, 87, 0.1);
  border: 1px solid rgba(255, 95, 87, 0.3);
  color: #ffb3ae;
  font-size: var(--step--1);
}

.input-affix { position: relative; }
.input-affix .input { padding-right: 46px; }
.affix-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-3);
}
.affix-btn:hover { color: var(--text); background: var(--surface-3); }

.pw-meter { display: flex; gap: 5px; margin-top: 7px; }
.pw-meter span {
  flex: 1;
  height: 3px;
  border-radius: 99px;
  background: var(--surface-3);
  transition: background var(--t) var(--ease);
}
.pw-meter span.is-on { background: var(--accent); }

.demo-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  text-align: center;
  padding: var(--sp-4);
  border-radius: var(--r-md);
  border: 1px dashed var(--line-2);
}

.auth-aside {
  position: relative;
  overflow: hidden;
  border-left: 1px solid var(--line);
  background: linear-gradient(160deg, var(--surface), var(--ground));
  display: flex;
  align-items: center;
}
.auth-aside-glow {
  position: absolute;
  inset: -20% -20% 30% -20%;
  background:
    radial-gradient(45% 45% at 30% 30%, rgba(200, 255, 77, 0.2), transparent 70%),
    radial-gradient(45% 45% at 70% 55%, rgba(91, 60, 240, 0.3), transparent 72%);
  filter: blur(50px);
}
.auth-aside-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  padding: clamp(32px, 5vw, 64px);
  width: 100%;
}
.auth-aside-quote {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1;
}
.auth-aside-stats { display: flex; gap: var(--sp-6); flex-wrap: wrap; }
.auth-stat {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.auth-aside-card {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: rgba(22, 26, 34, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line-2);
  max-width: 340px;
}

/* ======================================================================
   Onboarding
   ====================================================================== */

.onb-view { min-height: 100vh; display: flex; flex-direction: column; }

.onb-head {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--gutter);
  border-bottom: 1px solid var(--line);
}

.onb-progress {
  flex: 1;
  height: 4px;
  border-radius: 99px;
  background: var(--surface-3);
  overflow: hidden;
  max-width: 420px;
  margin-inline: auto;
}
.onb-progress-fill {
  display: block;
  height: 100%;
  width: 16%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent));
  transition: width 500ms var(--ease-out);
}

.onb-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-6) var(--gutter) var(--sp-8);
}

.onb-card {
  width: min(680px, 100%);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}
.onb-card h1 { font-size: var(--step-4); }

.onb-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
}

.input-xl {
  font-family: var(--font-display);
  font-size: var(--step-3);
  letter-spacing: -0.03em;
  padding: 16px 18px;
}

.onb-levels { display: flex; flex-direction: column; gap: 8px; }

.level-pick {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--text);
  text-align: left;
  transition: all var(--t) var(--ease);
}
.level-pick:hover { border-color: var(--line-lit); background: var(--surface-2); }
.level-pick.is-selected { border-color: var(--accent); background: var(--accent-soft); }
.level-pick-code { font-size: var(--step--1); min-width: 40px; }

.onb-test-cta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 14px 16px;
  border-radius: var(--r-md);
  border: 1px dashed var(--line-2);
  background: transparent;
  color: var(--text);
  text-align: left;
  transition: all var(--t) var(--ease);
}
.onb-test-cta:hover { border-color: var(--accent-line); background: var(--accent-soft); }
.onb-test-icon { color: var(--accent); display: grid; place-items: center; }

.chip-grid { display: flex; flex-wrap: wrap; gap: 9px; }

.pick-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 17px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--text-2);
  font-weight: 500;
  transition: all var(--t) var(--ease);
}
.pick-chip:hover { border-color: var(--line-lit); color: var(--text); transform: translateY(-1px); }
.pick-chip.is-selected { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }

.time-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; }

.time-pick {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--sp-4) var(--sp-2);
  border-radius: var(--r-md);
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--text);
  transition: all var(--t) var(--ease);
}
.time-pick:hover { border-color: var(--line-lit); transform: translateY(-2px); }
.time-pick.is-selected { border-color: var(--accent); background: var(--accent-soft); }
.time-value {
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}
.time-label { font-size: var(--step--2); color: var(--text-3); margin-top: 4px; }

.path-rail {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.path-rail::-webkit-scrollbar { display: none; }
.path-node {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--surface);
  white-space: nowrap;
  flex: none;
}
.path-node.is-current { border-color: var(--accent-line); background: var(--accent-soft); }
.path-node-name { font-size: var(--step--1); color: var(--text-2); }
.path-node + .path-node::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--line-2);
  margin-right: 9px;
  margin-left: -9px;
}

.path-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--sp-3); }

.path-mission {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: linear-gradient(120deg, var(--accent-soft), transparent 70%);
  border: 1px solid var(--accent-line);
}

/* ======================================================================
   App shell
   ====================================================================== */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100vh;
  /* Matches the visible viewport on phones, where the browser's address bar
     shrinks and grows as you scroll. Falls back to vh where unsupported. */
  min-height: 100dvh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  padding: var(--sp-5) var(--sp-4);
  border-right: 1px solid var(--line);
  background: var(--ground-2);
  z-index: 80;
}

.sidebar-top { padding-inline: 8px; }
.sidebar-nav { display: flex; flex-direction: column; gap: 3px; flex: 1; }

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  color: var(--text-2);
  font-size: var(--step--1);
  font-weight: 500;
  transition: all var(--t) var(--ease);
}
.sidebar-link:hover { background: var(--surface); color: var(--text); }
.sidebar-link.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-foot { display: flex; flex-direction: column; gap: 3px; }

.sidebar-mini {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  margin-bottom: 6px;
}
.sidebar-mini:hover { border-color: var(--line-2); }

.app-body { display: flex; flex-direction: column; min-width: 0; }

.topbar {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 70;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  height: var(--topbar-h);
  padding-inline: var(--gutter);
  background: rgba(8, 9, 12, 0.76);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.topbar-burger, .topbar-logo { display: none; }
.topbar-stats { display: flex; gap: 8px; }
.topbar-bell { position: relative; }
.bell-dot {
  position: absolute;
  top: 7px; right: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--ground);
}
.topbar-avatar { display: inline-flex; }

.app-main { flex: 1; padding: var(--sp-6) var(--gutter) var(--sp-8); }
.app-main > .shell { padding-inline: 0; }

.tabbar { display: none; }

/* ======================================================================
   Achievement unlock
   ====================================================================== */

.unlock { padding-block: var(--sp-4); }
.unlock-badge {
  position: relative;
  display: grid;
  place-items: center;
  width: 92px; height: 92px;
  border-radius: 26px;
  color: var(--text-on-accent);
  background: linear-gradient(140deg, var(--accent), var(--accent-deep));
  animation: pop 600ms var(--ease-spring) both;
}
.unlock-badge.unlock-silver { background: linear-gradient(140deg, #e7ecf3, #95a1b3); }
.unlock-badge.unlock-bronze { background: linear-gradient(140deg, #f0b98a, #b4703c); }
.unlock-glow {
  position: absolute;
  inset: -10px;
  border-radius: 34px;
  border: 2px solid var(--accent);
  opacity: 0;
  animation: pulse-ring 1.6s var(--ease-out) infinite;
}
@media (prefers-reduced-motion: reduce) { .unlock-glow { display: none; } }

.modal-actions { margin-top: var(--sp-5); }
.modal-actions .btn { flex: 1; }

/* ======================================================================
   404
   ====================================================================== */

.misc-view { min-height: 100vh; display: flex; flex-direction: column; }
.notfound {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-4);
  padding-block: clamp(40px, 8vw, 96px);
}
/* ======================================================================
   Legal documents
   ====================================================================== */

.legal { display: flex; flex-direction: column; gap: var(--sp-6); }

.legal-head { display: flex; flex-direction: column; gap: var(--sp-3); }

.legal-toc {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 2px var(--sp-4);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface-inset);
}

.legal-toc-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  color: var(--text-2);
  font-size: var(--step--1);
}
.legal-toc-link:hover { color: var(--accent); }
.legal-toc-link .mono { font-size: var(--step--2); }

.legal-section {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}
.legal-section h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: var(--step-2);
}
.legal-num { font-size: var(--step--1); color: var(--text-3); font-weight: 400; }

.legal-section p {
  color: var(--text-2);
  line-height: 1.7;
  max-width: 68ch;
}

.legal-todo {
  padding: var(--sp-4);
  border-radius: var(--r-sm);
  border: 1px dashed var(--warn);
  background: rgba(255, 181, 71, 0.08);
  color: var(--warn) !important;
}

.legal-foot {
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
}

.auth-callback { gap: var(--sp-5); }

.spinner {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 3px solid var(--surface-3);
  border-top-color: var(--accent);
  animation: spin 800ms linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2.4s; }
}

.notfound-code {
  font-size: clamp(5rem, 16vw, 11rem);
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 2px var(--line-lit);
  letter-spacing: -0.05em;
}

/* ---- social sign-in ---- */

.social-btn {
  gap: 10px;
  font-weight: 600;
}
/* Other companies' marks keep their own colours, so they must not inherit
   ours the way our own icons do. */
.brand-mark { flex: none; }
.social-btn:hover { background: var(--surface); border-color: var(--line-lit); }

/* ------------------------------------------------------------------ checkpoint */

.checkpoint-card {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  text-decoration: none;
  color: inherit;
}

.checkpoint-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  flex: none;
  border-radius: var(--r-3);
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--muted);
}

.checkpoint-card.is-open { border-color: var(--line-lit); }
.checkpoint-card.is-open .checkpoint-mark,
.checkpoint-card.is-done .checkpoint-mark {
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  border-color: color-mix(in oklab, var(--accent) 34%, transparent);
  color: var(--accent);
}
.checkpoint-card.is-open:hover,
.checkpoint-card.is-done:hover { border-color: var(--accent); }
.checkpoint-card.is-locked { opacity: 0.72; }

/* An exam does not show you whether you were right, so a chosen answer gets a
   selected state and nothing else — no green, no red, no hint either way. */
.checkpoint-view .option.is-chosen {
  border-color: var(--accent);
  background: color-mix(in oklab, var(--accent) 10%, transparent);
}

.complete-mark.is-miss {
  background: color-mix(in oklab, var(--warn, #f5a524) 14%, transparent);
  border-color: color-mix(in oklab, var(--warn, #f5a524) 34%, transparent);
  color: var(--warn, #f5a524);
}

.review-item {
  padding-block: var(--sp-3);
  border-top: 1px solid var(--line);
}
.review-item:first-of-type { border-top: 0; padding-top: 0; }

/* ---------------------------------------------------------------- certificate */

.cert-card { text-decoration: none; color: inherit; gap: var(--sp-3); }
.cert-card:hover { border-color: var(--line-lit); }
.cert-row { padding-block: var(--sp-2); border-top: 1px solid var(--line); }
.cert-row:first-child { border-top: 0; padding-top: 0; }

.certificate { position: relative; }

/* Deliberately not a .card. A certificate that looks like the rest of the
   interface reads as a screen; this one has to read as a document, so it gets
   its own paper, its own border and a lot more air than anything else here. */
.certificate-sheet {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  padding: clamp(var(--sp-5), 5vw, var(--sp-8));
  border-radius: var(--r-3);
  border: 1px solid color-mix(in oklab, var(--accent) 26%, var(--line));
  background:
    radial-gradient(120% 90% at 100% 0%, color-mix(in oklab, var(--accent) 7%, transparent), transparent 60%),
    var(--surface);
  box-shadow: var(--shadow-2, 0 24px 60px rgba(0, 0, 0, 0.35));
}

.certificate-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--line);
}

.certificate-brand { display: flex; align-items: center; gap: var(--sp-2); }
.certificate-wordmark { display: none; }

.certificate-level {
  font-size: var(--step-1);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.certificate-body { display: flex; flex-direction: column; gap: var(--sp-4); }

.certificate-kicker {
  font-size: var(--step--2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.certificate-name {
  font-size: clamp(var(--step-4), 7vw, var(--step-6));
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.certificate-statement {
  max-width: 54ch;
  color: var(--text);
  font-size: var(--step-0);
}

.certificate-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6);
  padding-top: var(--sp-2);
}

.certificate-stat { display: flex; flex-direction: column; gap: 4px; }
.certificate-stat strong { font-size: var(--step-1); }

.certificate-stat-label {
  font-size: var(--step--2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.certificate-cando { display: flex; flex-direction: column; gap: var(--sp-2); }
.certificate-cando ul {
  display: grid;
  gap: var(--sp-1);
  margin: 0;
  padding-left: 1.1em;
  font-size: var(--step--1);
  color: var(--muted);
}

.certificate-foot {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--line);
}

.certificate-code { display: flex; flex-direction: column; gap: 4px; }
.certificate-code strong { font-size: var(--step-1); letter-spacing: 0.06em; }

.certificate-verify-url {
  font-size: var(--step--2);
  color: var(--muted);
  word-break: break-all;
}

.certificate-disclaimer {
  font-size: var(--step--2);
  line-height: 1.5;
  color: var(--muted);
  max-width: 68ch;
}

.certificate-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: var(--step--1);
  border: 1px solid var(--line);
  background: var(--surface-2);
}
.certificate-badge.is-registry {
  color: var(--accent);
  border-color: color-mix(in oklab, var(--accent) 36%, transparent);
  background: color-mix(in oklab, var(--accent) 10%, transparent);
}
.certificate-badge.is-local { color: var(--muted); }

/* ---- printing ----
   The certificate is the only thing on the page worth printing, and it has to
   come out on white paper: a dark document wastes a cartridge and looks like a
   screenshot rather than a record. */

@media print {
  body { background: #fff; }
  .app-sidebar, .app-topbar, .mobile-tabbar, .no-print,
  .toast-stack, .link-sm { display: none !important; }
  .app-main, .app-shell, .shell, .shell-narrow { padding: 0 !important; margin: 0 !important; }

  .certificate-sheet {
    box-shadow: none;
    background: #fff;
    border: 1.5px solid #111;
    color: #111;
    page-break-inside: avoid;
  }
  .certificate-sheet .certificate-level,
  .certificate-sheet .logo-word { color: #111; }
  .certificate-brand .logo { display: none; }
  .certificate-wordmark {
    display: inline;
    font-weight: 700;
    font-size: var(--step-1);
    letter-spacing: -0.02em;
  }
  .certificate-statement, .certificate-stat strong, .certificate-code strong { color: #111; }
  .certificate-stat-label, .certificate-kicker,
  .certificate-cando ul, .certificate-disclaimer,
  .certificate-verify-url { color: #444; }
  .certificate-head, .certificate-foot { border-color: #ccc; }
  .certificate-badge { display: none; }
}

/* The verification page has no app chrome — it is opened by somebody who does
   not have an account — so it has to supply its own page padding. */
.verify-view {
  min-height: 100vh;
  padding: var(--sp-7) var(--sp-4) var(--sp-8);
}

@media (min-width: 720px) {
  .verify-view { padding-inline: var(--sp-6); }
}

/* ---------------------------------------------------------------- review */

.review-due-card {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  text-decoration: none;
  color: inherit;
  border-color: color-mix(in oklab, var(--accent) 24%, var(--line));
}
.review-due-card:hover { border-color: var(--accent); }

.review-due-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
  border-radius: var(--r-2);
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
  color: var(--accent);
}

.review-card { gap: var(--sp-5); }

/* The gap sentence is the question, so it is set at heading size — the word
   being recalled is the only thing on the screen worth reading. */
.review-gap {
  font-size: clamp(var(--step-2), 4.5vw, var(--step-4));
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.review-term { font-size: var(--step-2); letter-spacing: -0.02em; }
.review-example { color: var(--muted); font-style: italic; }

.review-answer {
  padding-top: var(--sp-4);
  border-top: 1px solid var(--line);
  animation: fade var(--t-med, 220ms) var(--ease-out, ease) both;
}

.review-boxes { display: inline-flex; gap: 5px; align-items: center; }

.review-pip {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line-lit);
}
.review-pip.is-on { background: var(--accent); }

.review-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sp-3);
  align-items: end;
  height: 110px;
}

.review-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  height: 100%;
  justify-content: flex-end;
}

.review-bar {
  width: 100%;
  min-height: 3px;
  height: var(--h, 3%);
  border-radius: var(--r-1, 6px);
  background: linear-gradient(to top, color-mix(in oklab, var(--accent) 70%, transparent), var(--accent));
}

/* A lesson reached the end of but scored below the pass mark. Neither a tick
   nor nothing — it needs its own state, or people ask why the lesson they
   finished is not counted. */
.lesson-row.is-attempted { border-color: color-mix(in oklab, var(--warn, #f5a524) 26%, var(--line)); }
.lesson-row-miss { color: var(--warn, #f5a524); }

.lesson-retry {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 50%;
  color: var(--warn, #f5a524);
  background: color-mix(in oklab, var(--warn, #f5a524) 14%, transparent);
}