:root {
  color-scheme: light;
  --color-paper: #f6f1e7;
  --color-surface: #fffdf8;
  --color-ink: #292b29;
  --color-muted: #626861;
  --color-primary: #466f70;
  --color-primary-dark: #315556;
  --color-coral: #c77b6c;
  --color-leaf: #72836b;
  --color-border: #d8d2c6;
  --color-soft-blue: #dce8e5;
  --color-soft-coral: #f1ded8;
  --color-error: #8a2f25;
  --color-overlay: rgb(30 46 43 / 0.62);
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 5rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --shadow-soft: 0 1rem 3rem rgb(41 43 41 / 0.08);
  --ease-out: cubic-bezier(0.32, 0.72, 0, 1);
  --content-width: 72rem;
  --reading-width: 42rem;
  --font-sans:
    system-ui, -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Yu Gothic UI", sans-serif;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  background: var(--color-paper);
}
body {
  min-width: 20rem;
  margin: 0;
  overflow-x: hidden;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
body.menu-open {
  overflow: hidden;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: var(--color-primary-dark);
  text-underline-offset: 0.2em;
}
button,
select,
input {
  font: inherit;
}
button,
select,
.button {
  min-height: 2.75rem;
}
button,
.button {
  cursor: pointer;
}
[hidden] {
  display: none !important;
}
:focus-visible {
  outline: 0.18rem solid var(--color-surface);
  outline-offset: 0.12rem;
  box-shadow: 0 0 0 0.38rem var(--color-ink);
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: var(--space-2);
  left: var(--space-2);
  transform: translateY(-160%);
  padding: var(--space-2) var(--space-3);
  color: var(--color-surface);
  background: var(--color-primary-dark);
  border-radius: var(--radius-sm);
  transition: transform 300ms var(--ease-out);
}
.skip-link:focus {
  transform: translateY(0);
}
.sample-notice {
  margin: 0;
  padding: var(--space-2)
    max(var(--space-3), calc((100% - var(--content-width)) / 2));
  color: var(--color-surface);
  background: var(--color-primary-dark);
  font-size: 0.875rem;
  line-height: 1.45;
  text-align: center;
}

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 4.5rem;
  padding: var(--space-2)
    max(var(--space-3), calc((100% - var(--content-width)) / 2));
  background: rgb(255 253 248 / 0.95);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(1rem);
}
.site-name {
  color: var(--color-ink);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
}
.site-name strong {
  color: var(--color-primary-dark);
  font-weight: 700;
}
.menu-button {
  padding-inline: var(--space-3);
  color: var(--color-surface);
  background: var(--color-primary-dark);
  border: 1px solid var(--color-primary-dark);
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.menu-button:active {
  transform: scale(0.98);
}
.site-header nav {
  position: absolute;
  top: calc(100% + var(--space-1));
  right: var(--space-3);
  left: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.site-header ul {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-header nav a {
  display: grid;
  place-items: center start;
  min-height: 2.75rem;
  padding-inline: var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
}
.site-header nav a:hover {
  background: var(--color-soft-blue);
}

main > section:not(.hero) {
  width: min(100% - 2rem, var(--content-width));
  margin-inline: auto;
  padding-block: var(--space-7);
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1,
h2,
h3 {
  color: var(--color-ink);
  font-weight: 700;
  letter-spacing: 0.015em;
  line-height: 1.35;
  text-wrap: balance;
}
h1 {
  max-width: 42.5rem;
  font-size: clamp(2.25rem, 9vw, 4.5rem);
}
h2 {
  font-size: clamp(1.875rem, 6vw, 3rem);
}
h3 {
  font-size: 1.25rem;
}
p,
li {
  text-wrap: pretty;
}
.section-heading {
  max-width: var(--reading-width);
  margin-bottom: var(--space-6);
}
.section-heading > :last-child {
  margin-bottom: 0;
}
.eyebrow {
  margin-bottom: var(--space-1);
  color: var(--color-coral);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.sample-label {
  color: var(--color-muted);
  font-size: 0.875rem;
  font-weight: 600;
}

.hero {
  position: relative;
  display: grid;
  min-height: 42rem;
  isolation: isolate;
  color: var(--color-surface);
  background: var(--color-primary-dark);
}
.hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background: var(--color-overlay);
}
.hero > img {
  position: absolute;
  z-index: -2;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-content {
  align-self: end;
  width: min(100% - 2rem, var(--content-width));
  margin-inline: auto;
  padding-block: var(--space-7);
}
.hero h1,
.hero .eyebrow {
  color: inherit;
}
.hero h1 span {
  display: block;
}
.hero-lead {
  max-width: 39rem;
  font-size: 1.125rem;
}
.hero .sample-label {
  max-width: 39rem;
  color: var(--color-surface);
}
.button {
  display: inline-grid;
  place-items: center;
  padding: var(--space-1) var(--space-2);
  color: var(--color-surface);
  background: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  transition:
    color 700ms var(--ease-out),
    background-color 700ms var(--ease-out),
    border-color 700ms var(--ease-out),
    transform 700ms var(--ease-out);
}
.button:hover {
  color: var(--color-surface);
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-0.12rem);
}
.button:active {
  transform: scale(0.98);
}
.button-light {
  color: var(--color-primary-dark);
  background: var(--color-surface);
  border-color: var(--color-surface);
}

.concern-list,
.benefit-list,
.step-list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}
.concern-list li {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.concern-list span,
.benefit-list span {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-muted);
}
#benefits {
  display: grid;
  gap: var(--space-5);
  align-items: center;
  border-block: 1px solid var(--color-border);
}
#benefits > img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.benefit-list li {
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.course-layout {
  display: grid;
  gap: var(--space-4);
}
.course-tabs {
  display: grid;
  gap: var(--space-2);
}
.course-tabs button {
  width: 100%;
  padding: var(--space-3);
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-align: start;
  transition:
    color 700ms var(--ease-out),
    background-color 700ms var(--ease-out),
    border-color 700ms var(--ease-out),
    transform 700ms var(--ease-out);
}
.course-tabs button:hover,
.course-tabs button[aria-selected="true"] {
  color: var(--color-surface);
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.course-tabs button:active {
  transform: scale(0.98);
}
.course-panels {
  display: grid;
  gap: var(--space-4);
}
.course-panels article {
  overflow: clip;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.course-panels img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.course-panels article > div {
  padding: var(--space-4);
}
.course-meta {
  color: var(--color-primary-dark);
  font-size: 0.875rem;
  font-weight: 700;
}

.tagline-section {
  width: 100% !important;
  max-width: none !important;
  padding-inline: max(var(--space-3), calc((100% - var(--content-width)) / 2));
  color: var(--color-ink);
  background: var(--color-soft-blue);
}
.tagline-section p {
  max-width: 42.5rem;
  margin: 0 auto var(--space-3);
  font-size: clamp(2.25rem, 7vw, 3.75rem);
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
  text-wrap: balance;
}
.tagline-section span {
  display: block;
  color: var(--color-ink);
  transition: color 800ms var(--ease-out);
}
.js .tagline-section span {
  color: rgb(41 43 41 / 0.32);
}
.tagline-section span.is-visible {
  color: var(--color-ink);
}

#instructor {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}
#instructor > img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
#instructor h2 span {
  display: inline-block;
  color: var(--color-coral);
  font-size: 0.875rem;
  vertical-align: middle;
}

.schedule-list {
  display: grid;
  gap: var(--space-3);
}
.schedule-list article {
  display: grid;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.schedule-list p,
.schedule-list h3 {
  margin-bottom: 0;
}
.schedule-date {
  display: grid;
}
.schedule-date strong {
  color: var(--color-primary-dark);
  font-size: 1.5rem;
}
.schedule-date span {
  color: var(--color-muted);
  font-size: 0.875rem;
}
.schedule-action {
  padding: var(--space-1) var(--space-2);
  color: var(--color-primary-dark);
  background: transparent;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition:
    color 700ms var(--ease-out),
    background-color 700ms var(--ease-out),
    transform 700ms var(--ease-out);
}
.schedule-action:hover {
  color: var(--color-surface);
  background: var(--color-primary);
}
.schedule-action:active {
  transform: scale(0.98);
}

.price-list {
  display: grid;
  gap: var(--space-3);
}
.price-list article {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.price-list article:nth-child(2) {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-soft);
}
.price-label {
  display: inline-block;
  margin-bottom: var(--space-2);
  padding: 0 var(--space-2);
  color: var(--color-primary-dark);
  background: var(--color-soft-blue);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
}
.price strong {
  color: var(--color-primary-dark);
  font-size: 1.5rem;
}
.price-list ul {
  padding-left: var(--space-4);
}

.step-list {
  counter-reset: step;
}
.step-list li {
  position: relative;
  padding: var(--space-4);
  background: var(--color-soft-coral);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.step-list li > span {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: var(--space-3);
  color: var(--color-surface);
  background: var(--color-coral);
  border-radius: 50%;
  font-weight: 700;
}
.step-list p {
  margin: var(--space-1) 0 0;
  color: var(--color-muted);
}

#faq {
  max-width: 56rem;
}
.faq-list {
  display: grid;
  gap: var(--space-1);
}
.faq-list article {
  border-bottom: 1px solid var(--color-border);
}
.faq-list h3 {
  margin: 0;
  font-size: 1rem;
}
.faq-list button {
  position: relative;
  width: 100%;
  padding: var(--space-3) 2.5rem var(--space-3) 0;
  color: var(--color-ink);
  background: transparent;
  border: 0;
  font-weight: 600;
  text-align: start;
}
.faq-list button::after {
  position: absolute;
  top: 50%;
  right: var(--space-2);
  content: "+";
  transform: translateY(-50%);
}
.faq-list button[aria-expanded="true"]::after {
  content: "−";
}
.faq-list [role="region"] {
  padding: 0 var(--space-3) var(--space-3);
}
.faq-list [role="region"] p {
  margin: 0;
  color: var(--color-muted);
}

#trial-check-demo {
  padding: var(--space-5) !important;
  background: var(--color-soft-blue);
  border-radius: var(--radius-lg);
}
#trial-check-demo .sample-notice {
  padding: var(--space-3);
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: start;
}
#trial-check-form {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}
#trial-check-form > div,
#trial-check-form fieldset {
  display: grid;
  gap: var(--space-1);
}
#trial-check-form label,
#trial-check-form legend {
  font-weight: 600;
}
#trial-check-form select {
  width: 100%;
  padding-inline: var(--space-2);
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1px solid var(--color-primary-dark);
  border-radius: var(--radius-sm);
}
#trial-check-form fieldset {
  margin: 0;
  padding: var(--space-3);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
}
#trial-check-form fieldset label {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  min-height: 2.75rem;
  font-weight: 400;
}
#form-error {
  min-height: 1.75rem;
  margin: 0;
  color: var(--color-error);
  font-weight: 600;
}
#form-result {
  min-height: 1.75rem;
  font-weight: 600;
}

.sample-summary {
  padding: var(--space-6) !important;
  color: var(--color-surface);
  background: var(--color-primary-dark);
  border-radius: var(--radius-lg);
}
.sample-summary h2 {
  color: inherit;
}
.site-footer {
  padding: var(--space-5)
    max(var(--space-3), calc((100% - var(--content-width)) / 2));
  color: var(--color-surface);
  background: var(--color-ink);
}
.site-footer a {
  color: var(--color-surface);
}
.site-footer p:last-child {
  margin-bottom: 0;
}

.subpage-header {
  min-height: 4.5rem;
  padding: var(--space-3)
    max(var(--space-3), calc((100% - var(--content-width)) / 2));
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.policy-page main {
  width: min(100% - 2rem, var(--reading-width));
  min-height: 70vh;
  margin-inline: auto;
  padding-block: var(--space-7);
}
.policy-page main section {
  margin-block: var(--space-5);
}
.subpage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.button-secondary {
  color: var(--color-primary-dark);
  background: transparent;
}
.not-found {
  display: grid;
  align-content: center;
}

.js [data-reveal] {
  opacity: 0;
  filter: blur(0.4rem);
  transform: translateY(var(--space-4));
  transition:
    opacity 800ms var(--ease-out),
    filter 800ms var(--ease-out),
    transform 800ms var(--ease-out);
}
.js [data-reveal].is-visible {
  opacity: 1;
  filter: none;
  transform: none;
}

@media (min-width: 48rem) {
  .menu-button {
    display: none;
  }
  .site-header nav,
  .site-header nav[hidden] {
    position: static;
    display: block !important;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
  }
  .site-header ul {
    display: flex;
    gap: var(--space-3);
  }
  .hero {
    min-height: 82svh;
  }
  .hero-content {
    padding-block: var(--space-8);
  }
  main > section:not(.hero) {
    padding-block: var(--space-8);
  }
  .concern-list,
  .price-list,
  .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  #benefits,
  #instructor {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-7);
  }
  .course-layout {
    grid-template-columns: minmax(14rem, 0.75fr) minmax(0, 1.5fr);
  }
  .course-panels article {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
  }
  .course-panels article > div {
    padding: var(--space-5);
  }
  .schedule-list article {
    grid-template-columns: 8rem minmax(0, 1fr) auto;
  }
  #trial-check-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  #trial-check-form fieldset,
  #form-error,
  #trial-check-form > button,
  #form-result {
    grid-column: 1 / -1;
  }
  #trial-check-form fieldset {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  #trial-check-form legend {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
  .js [data-reveal],
  .js [data-reveal].is-visible {
    opacity: 1;
    filter: none;
    transform: none;
  }
  .tagline-section span {
    color: var(--color-ink);
  }
  .button:hover,
  .button:active,
  .schedule-action:active {
    transform: none;
  }
}