.landing-page {
  --ek-red: #c6374b;
  --ek-blue: #3b65b1;
  --ek-gold: #c79e4c;
  --ek-green: #16a34a;
  --ek-purple: #ab3871;
  --ek-ink: #0f172a;
  --ek-slate: #475569;
  --ek-soft-blue: #eef4fb;
  --ek-soft-red: #faecef;
  --ek-soft-gold: #f7f0e1;
  --ek-soft-green: #edf4eb;
  min-height: 100dvh;
  background: #ffffff;
}

.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transform: translateY(-100%);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.landing-nav--visible {
  transform: translateY(0);
  border-bottom-color: #e2e8f0;
}

.landing-nav__inner {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.landing-nav__logo {
  font-weight: 900;
  font-size: 1.125rem;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.landing-nav__links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.landing-nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ek-slate);
  text-decoration: none;
  transition: color 0.15s ease;
}

.landing-nav__link:hover {
  color: var(--ek-ink);
  text-decoration: none;
}

.landing-btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  border-radius: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.landing-btn--primary {
  background: var(--ek-red);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(198, 55, 75, 0.28);
}

.landing-btn--primary:hover {
  transform: translateY(-2px);
  background: #b33145;
  box-shadow: 0 6px 20px rgba(198, 55, 75, 0.36);
  text-decoration: none;
}

.landing-btn--secondary {
  background: var(--ek-soft-blue);
  color: var(--ek-blue);
  border: 1px solid rgba(59, 101, 177, 0.16);
}

.landing-btn--secondary:hover {
  background: #e5eef9;
  text-decoration: none;
}

.landing-btn--large {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.landing-btn--small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: 0.5rem;
}

.landing-hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
  background: #ffffff;
}

.landing-hero__content {
  max-width: 36rem;
}

.landing-hero__title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 1.25rem;
  color: var(--ek-ink);
}

.landing-hero__title-accent {
  color: var(--ek-blue);
}

.landing-hero__subtitle {
  font-size: 1.25rem;
  color: var(--ek-slate);
  margin: 0 0 2rem;
  line-height: 1.5;
}

.landing-hero__cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.landing-hero__visual {
  margin-top: 3.5rem;
}

.landing-hero__sentence {
  font-size: 2.25rem;
  font-weight: 700;
  display: flex;
  justify-content: center;
  gap: 0.125rem;
}

.landing-hero__token {
  transition: transform 0.3s ease;
}

.landing-hero__token:hover {
  transform: scale(1.1);
}

.landing-hero__translation {
  margin: 0.75rem 0 0;
  font-size: 1rem;
  color: #64748b;
  font-style: italic;
}

.landing-section {
  padding: 5rem 1.5rem;
}

.landing-section--alt {
  background: #f8fafc;
}

.landing-section--everyday {
  background: var(--ek-soft-gold);
}

.landing-section--cta {
  background: var(--ek-blue);
  text-align: center;
}

.landing-section--path {
  background: #f8fafc;
}

.landing-section__inner {
  max-width: 56rem;
  margin: 0 auto;
}

.landing-section__title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--ek-ink);
  text-align: center;
}

.landing-section--cta .landing-section__title {
  color: #ffffff;
}

.landing-section__description {
  font-size: 1.125rem;
  color: var(--ek-slate);
  text-align: center;
  margin: 0 0 2.5rem;
  line-height: 1.6;
}

.landing-problem-solution {
  display: grid;
  gap: 2rem;
}

.landing-problem,
.landing-solution {
  padding: 1.5rem;
  border-radius: 1rem;
  background: #ffffff;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}

.landing-problem p,
.landing-solution p {
  margin: 0.75rem 0 0;
  font-size: 1.125rem;
  line-height: 1.6;
  color: #334155;
}

.landing-label {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.landing-label--problem {
  background: var(--ek-soft-red);
  color: var(--ek-red);
}

.landing-label--solution {
  background: var(--ek-soft-blue);
  color: var(--ek-blue);
}

.landing-tokens__interactive {
  background: #ffffff;
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
  margin-bottom: 2rem;
}

.landing-tokens__toggle-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.landing-tokens__toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem 0.5rem 0.5rem;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #f8fafc;
  cursor: pointer;
  transition: all 0.2s ease;
}

.landing-tokens__toggle:hover {
  background: #f1f5f9;
}

.landing-tokens__toggle.is-active {
  border-color: rgba(59, 101, 177, 0.24);
  background: var(--ek-soft-blue);
}

.landing-tokens__toggle-track {
  width: 2.5rem;
  height: 1.5rem;
  background: #cbd5e1;
  border-radius: 999px;
  position: relative;
  transition: background 0.2s ease;
}

.landing-tokens__toggle.is-active .landing-tokens__toggle-track {
  background: var(--ek-blue);
}

.landing-tokens__toggle-thumb {
  position: absolute;
  top: 0.2rem;
  left: 0.2rem;
  width: 1.1rem;
  height: 1.1rem;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

.landing-tokens__toggle.is-active .landing-tokens__toggle-thumb {
  transform: translateX(1rem);
}

.landing-tokens__toggle-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ek-slate);
}

.landing-tokens__sentence-demo {
  text-align: center;
}

.landing-tokens__sentence-large {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.landing-tokens__sentence-large span {
  transition: color 0.3s ease;
}

.landing-tokens__translation {
  font-size: 1rem;
  color: #64748b;
  font-style: italic;
  margin: 0;
}

.landing-tokens__legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  transition: opacity 0.3s ease;
}

.landing-tokens__legend.is-dimmed {
  opacity: 0.4;
}

.landing-tokens__legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.landing-tokens__legend-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.landing-tokens__legend-label {
  font-size: 0.875rem;
  color: var(--ek-slate);
}

.landing-mid-cta {
  margin-top: 2.5rem;
  text-align: center;
}

.landing-builder {
  display: grid;
  gap: 2rem;
  background: #ffffff;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

.landing-builder__mode {
  text-align: center;
}

.landing-builder__direction {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--ek-soft-blue);
  color: var(--ek-blue);
  margin-bottom: 1rem;
}

.landing-builder__prompt {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.landing-builder__prompt--english {
  color: #334155;
  font-style: italic;
}

.landing-builder__answer {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.landing-builder__word {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  background: #f1f5f9;
  font-size: 1rem;
  font-weight: 500;
  color: #334155;
}

.landing-builder__answer--korean .landing-builder__word {
  background: var(--ek-soft-red);
  color: var(--ek-red);
}

.landing-builder__divider {
  height: 1px;
  background: #e2e8f0;
}

.landing-path-shell {
  border: 1px solid rgba(203, 213, 225, 0.9);
  border-radius: 1.4rem;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.07);
  overflow: hidden;
  margin-bottom: 2rem;
}

.landing-path-shell__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1rem 0.95rem;
  border-bottom: 1px solid rgba(226, 232, 240, 0.95);
  background: rgba(248, 250, 252, 0.88);
}

.landing-path-shell__eyebrow,
.landing-path-unit__eyebrow {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.28rem 0.55rem;
  background: rgba(15, 23, 42, 0.06);
  color: #475569;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.landing-path-unit__eyebrow {
  background: color-mix(in srgb, var(--ucolor, #94a3b8) 12%, white);
  color: color-mix(in srgb, var(--ucolor, #94a3b8) 72%, #334155);
}

.landing-path-shell__status,
.landing-path-unit__status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.28rem 0.55rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.landing-path-shell__status {
  background: rgba(148, 163, 184, 0.14);
  color: #64748b;
}

.landing-path-unit__status--done {
  background: rgba(22, 163, 74, 0.12);
  color: #15803d;
}

.landing-path-unit__status--active {
  background: color-mix(in srgb, var(--ucolor) 14%, white);
  color: color-mix(in srgb, var(--ucolor) 78%, #0f172a);
}

.landing-path-unit__status--locked {
  background: rgba(148, 163, 184, 0.14);
  color: #64748b;
}

.landing-path-track {
  max-width: 34rem;
  margin: 0 auto;
  padding: 1rem;
}

.landing-path-unit {
  display: block;
  padding-bottom: 0.95rem;
}

.landing-path-unit--last {
  padding-bottom: 0;
}

.landing-path-unit__node {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.8rem;
  flex-shrink: 0;
  line-height: 1;
}

.landing-path-unit__node--done {
  background: var(--ek-green);
  box-shadow: 0 2px 0 0 #15803d;
  color: #ffffff;
}

.landing-path-unit__node--done svg {
  width: 1rem;
  height: 1rem;
}

.landing-path-unit__node--active {
  background: var(--ucolor);
  box-shadow: 0 2px 0 0 rgba(15, 23, 42, 0.2);
  color: #ffffff;
}

.landing-path-unit__node--locked {
  background: #f1f5f9;
  box-shadow: 0 2px 0 0 #e2e8f0;
  color: #94a3b8;
  border: 1.5px solid #e2e8f0;
}

.landing-path-unit__body {
  padding: 0.95rem 1rem 1rem;
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.05);
}

.landing-path-unit__body--done {
  background: color-mix(in srgb, var(--ucolor) 6%, white);
  border-color: color-mix(in srgb, var(--ucolor) 26%, #cbd5e1);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--ucolor) 10%, rgba(15, 23, 42, 0.08));
}

.landing-path-unit__body:not(.landing-path-unit__body--locked):not(.landing-path-unit__body--done) {
  border-color: color-mix(in srgb, var(--ucolor) 22%, #cbd5e1);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--ucolor) 10%, rgba(15, 23, 42, 0.08));
}

.landing-path-unit__body--locked {
  background: rgba(248, 250, 252, 0.9);
  box-shadow: none;
}

.landing-path-unit__body--locked .landing-path-unit__eyebrow {
  background: rgba(148, 163, 184, 0.12);
  color: #64748b;
}

.landing-path-unit__body--locked .landing-path-unit__name {
  color: #94a3b8;
}

.landing-path-unit__body--locked .landing-path-unit__goal {
  color: #cbd5e1;
}

.landing-path-unit__topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.7rem;
}

.landing-path-unit__identity {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.landing-path-unit__name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ek-ink);
  margin: 0 0 0.2rem;
  line-height: 1.3;
}

.landing-path-unit__goal {
  font-size: 0.875rem;
  color: var(--ek-slate);
  margin: 0 0 0.5rem;
  line-height: 1.4;
}

.landing-path-unit__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.landing-path-unit__tags--locked .landing-path-unit__tag {
  background: #f8fafc;
  color: #cbd5e1;
  border-color: #f1f5f9;
}

.landing-path-unit__tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--ucolor, #3b65b1) 12%, white);
  color: color-mix(in srgb, var(--ucolor, #3b65b1) 78%, #0f172a);
  border: 1px solid color-mix(in srgb, var(--ucolor, #3b65b1) 18%, #dbe2ea);
  letter-spacing: 0.01em;
}

.landing-path-track-wrap {
  position: relative;
  margin-bottom: 0;
}

.landing-path-unit--ghost {
  opacity: 0.55;
}

.landing-path-unit--ghost-2 {
  opacity: 0.36;
}

.landing-path-unit__ghost-bar {
  background: #e2e8f0;
  border-radius: 4px;
  margin-bottom: 0.4rem;
  height: 0.7rem;
}

.landing-path-unit__ghost-bar--lg {
  width: 58%;
}

.landing-path-unit__ghost-bar--md {
  width: 75%;
  height: 0.6rem;
}

.landing-path-unit__ghost-bar--sm {
  width: 45%;
  height: 0.55rem;
}

.landing-path-more {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 1.75rem;
}

.landing-path-more__dot {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #cbd5e1;
}

.landing-path-more__text {
  font-size: 0.8rem;
  color: #94a3b8;
  font-weight: 500;
  margin: 0.25rem 0 0;
  letter-spacing: 0.01em;
}

.landing-path-engine {
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.landing-path-engine__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ek-ink);
  margin: 0 0 0.5rem;
  line-height: 1.4;
}

.landing-path-engine__body {
  font-size: 0.9rem;
  color: var(--ek-slate);
  line-height: 1.6;
  margin: 0;
}

.landing-path__note {
  text-align: center;
  font-size: 0.9375rem;
  color: #64748b;
  margin: 0 0 0.25rem;
}

.landing-daily {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.landing-daily__card {
  background: #ffffff;
  padding: 1.5rem 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
  text-align: center;
  max-width: 20rem;
  width: 100%;
}

.landing-daily__badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--ek-gold);
  color: #ffffff;
  margin-bottom: 1rem;
}

.landing-daily__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
}

.landing-daily__korean {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.landing-daily__romanization {
  font-size: 0.875rem;
  color: #64748b;
  font-style: italic;
}

.landing-daily__english {
  font-size: 1.125rem;
  font-weight: 600;
  color: #334155;
}

.landing-daily__example {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.375rem;
  line-height: 1.4;
}

.landing-daily__translation {
  font-size: 0.875rem;
  color: #64748b;
  font-style: italic;
  margin: 0;
}

.landing-everyday__pitch {
  text-align: center;
  font-size: 1rem;
  color: #78716c;
  line-height: 1.6;
  margin: 0 auto;
  max-width: 32rem;
}

.landing-focus {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.landing-focus__pillar {
  padding: 1.5rem;
  border-radius: 1rem;
  background: #f8fafc;
  text-align: center;
}

.landing-focus__icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.75rem;
}

.landing-focus__pillar h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ek-ink);
}

.landing-focus__pillar p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--ek-slate);
  line-height: 1.5;
}

.landing-focus__note {
  text-align: center;
  font-size: 1rem;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

.landing-faq {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

.landing-faq__item {
  background: #ffffff;
  border-radius: 0.875rem;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
}

.landing-faq__question {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ek-ink);
  margin: 0 0 0.5rem;
}

.landing-faq__answer p {
  font-size: 0.9375rem;
  color: var(--ek-slate);
  line-height: 1.6;
  margin: 0;
}

.landing-cta__title {
  font-size: 2rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 2rem;
}

.landing-cta__buttons {
  margin-bottom: 1.5rem;
}

.landing-cta__login {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9375rem;
  margin: 0;
}

.landing-cta__login a {
  color: #ffffff;
  text-decoration: underline;
}

.landing-footer {
  padding: 2rem;
  text-align: center;
  background: var(--ek-ink);
  border-top: 1px solid #1e293b;
}

.landing-footer p {
  margin: 0;
  color: #94a3b8;
  font-size: 0.875rem;
}

.landing-footer__tagline {
  margin-top: 0.375rem !important;
  font-size: 0.8rem !important;
  color: #64748b !important;
}

.landing-footer__legal {
  margin-top: 0.5rem !important;
  font-size: 0.78rem !important;
  letter-spacing: 0.02em;
  color: #7b8798 !important;
}

.landing-footer__links,
.landing-footer__guides,
.legal-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
}

.landing-footer__links {
  margin-top: 0.85rem;
}

.landing-footer__links a,
.landing-footer__guides a,
.legal-links a {
  color: #cbd5e1;
  font-size: 0.8rem;
}

.landing-footer__guides,
.legal-links {
  margin-top: 0.5rem;
}

@media (max-width: 639px) {
  .landing-nav__link {
    display: none;
  }

  .landing-hero {
    min-height: auto;
    padding: 3rem 1rem;
  }

  .landing-hero__title {
    font-size: 2rem;
  }

  .landing-hero__subtitle {
    font-size: 1rem;
  }

  .landing-hero__sentence {
    font-size: 1.5rem;
  }

  .landing-section {
    padding: 3rem 1rem;
  }

  .landing-section__title {
    font-size: 1.5rem;
  }

  .landing-section__description,
  .landing-tokens__sentence-large,
  .landing-builder__prompt,
  .landing-daily__example {
    font-size: 1.05rem;
  }

  .landing-tokens__interactive,
  .landing-builder,
  .landing-daily__card {
    padding: 1.25rem 1rem;
  }

  .landing-path-shell__header,
  .landing-path-unit__topline {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 640px) {
  .landing-problem-solution {
    grid-template-columns: 1fr 1fr;
  }

  .landing-builder {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }

  .landing-builder__divider {
    width: 1px;
    height: 100%;
  }

  .landing-focus {
    grid-template-columns: repeat(3, 1fr);
  }

  .landing-hero__title {
    font-size: 3.5rem;
  }

  .landing-hero__sentence {
    font-size: 2.75rem;
  }
}

@media (min-width: 900px) {
  .landing-section {
    padding: 6rem 2rem;
  }

  .landing-section__title {
    font-size: 2.5rem;
  }

  .landing-hero__title {
    font-size: 4rem;
  }

  .landing-tokens__sentence-large {
    font-size: 2rem;
  }
}