/* Design tokens from DESIGN.md (variant A) */
:root {
  --color-bg: #fbf5ec;
  --color-surface: #ffffff;
  --color-surface-alt: #f5ebdd;
  --color-text: #3b2f27;
  --color-text-muted: #6b5a4c;
  --color-primary: #7a3e22;
  --color-primary-hover: #5f2f19;
  --color-accent: #4f6b4a;
  --color-line: #e8dccb;
  --color-focus: #1f5fbf;
  --color-error: #a8322a;
  --color-error-bg: #fbe9e6;
  --color-input-border: #8c7a6b;

  --font-heading: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 40px;
  --space-8: 56px;

  --radius-pill: 999px;
  --radius-panel: 20px;
  --radius-small: 12px;
  --radius-photo: 28px;
  --shadow-panel: 0 6px 24px rgba(91, 56, 30, 0.08);

  --container-width: 1120px;
  --tap-size: 44px;
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.8;
  overflow-x: clip;
}
h1, h2, h3 { font-family: var(--font-heading); line-height: 1.45; margin: 0; }
/* Break Japanese headings at phrase boundaries (Chromium only; h1 also has manual breaks) */
h1, h2, h3 { word-break: auto-phrase; text-wrap: balance; }
p { margin: 0; }
a { color: var(--color-primary); }
a:hover { color: var(--color-primary-hover); }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.container { width: min(100% - 2 * var(--space-4), var(--container-width)); margin-inline: auto; }
.icon { width: 1.25em; height: 1.25em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
/* Keep a phrase on one line; breaks may only happen between .nowrap spans */
.nowrap { white-space: nowrap; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[id] { scroll-margin-top: var(--space-4); }

/* Skip link: visible only when focused */
.skip-link { position: absolute; left: var(--space-4); top: var(--space-2); z-index: 10; padding: var(--space-2) var(--space-4); border-radius: var(--radius-small); background: var(--color-surface); color: var(--color-primary); font-weight: 700; transform: translateY(-200%); }
.skip-link:focus { transform: none; }

/* Practice-work notice */
.practice-notice { background: var(--color-surface-alt); border-bottom: 1px solid var(--color-line); font-size: 0.875rem; line-height: 1.6; }
.practice-notice p { padding-block: var(--space-2); text-align: center; }

/* Header and navigation */
.site-header { position: relative; z-index: 5; background: var(--color-surface); box-shadow: 0 1px 0 var(--color-line); }
.site-header__inner { display: flex; align-items: center; gap: var(--space-5); min-height: 76px; }
.site-logo { display: inline-flex; align-items: center; gap: var(--space-3); min-height: var(--tap-size); font-family: var(--font-heading); font-weight: 700; font-size: 1.25rem; color: var(--color-text); text-decoration: none; }
.site-logo:hover { color: var(--color-text); }
.site-logo__mark { width: 40px; height: 40px; border-radius: 50%; background: var(--color-primary); color: #fff; display: grid; place-items: center; font-size: 0.75rem; }
.global-nav { margin-left: auto; }
.global-nav__list { display: flex; align-items: center; gap: var(--space-2); list-style: none; margin: 0; padding: 0; }
.global-nav__link { display: inline-flex; align-items: center; min-height: var(--tap-size); padding-inline: var(--space-2); color: var(--color-text); text-decoration: none; font-weight: 500; font-size: 0.9375rem; }
.global-nav__link:hover { color: var(--color-primary); text-decoration: underline; }
.global-nav__cta { margin-left: var(--space-3); }
.menu-button { display: none; }

/* Buttons: primary > secondary > text link */
.button { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-height: 52px; padding: var(--space-3) var(--space-6); border-radius: var(--radius-pill); border: 2px solid transparent; font-weight: 700; text-decoration: none; transition: background-color 0.15s; }
.button--primary { background: var(--color-primary); color: #fff; box-shadow: 0 4px 12px rgba(122, 62, 34, 0.28); }
.button--primary:hover { background: var(--color-primary-hover); color: #fff; }
.button--secondary { background: var(--color-surface); color: var(--color-primary); border-color: var(--color-primary); }
.button--secondary:hover { background: var(--color-surface-alt); color: var(--color-primary); }
.button--small { min-height: var(--tap-size); padding: var(--space-2) var(--space-5); font-size: 0.9375rem; }

/* Hero (first view) */
.hero { padding: var(--space-7) 0 var(--space-8); }
.hero__inner { position: relative; display: grid; grid-template-columns: 1fr 1.15fr; gap: var(--space-7); align-items: center; }
.hero__eyebrow { display: inline-block; margin-bottom: var(--space-5); padding: 2px var(--space-3); border: 1.5px solid var(--color-primary); border-radius: var(--radius-pill); color: var(--color-primary); font-weight: 700; font-size: 0.875rem; }
.hero__title { font-size: clamp(1.375rem, 3.6vw, 2.625rem); letter-spacing: 0.04em; }
.hero__lead { margin-top: var(--space-4); }
.hero__points { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-4); margin: var(--space-3) 0 0; padding: 0; list-style: none; font-size: 0.9375rem; font-weight: 700; }
.hero__points li::before { content: "●"; margin-right: 6px; font-size: 0.5em; vertical-align: middle; color: var(--color-primary); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
.hero__tel { display: flex; align-items: center; gap: var(--space-2); margin-top: var(--space-3); font-weight: 700; }
.hero__tel small { font-size: 0.8125rem; font-weight: 400; color: var(--color-text-muted); }
.hero__note { margin-top: var(--space-3); font-size: 0.8125rem; color: var(--color-text-muted); line-height: 1.6; }
.photo { display: block; position: relative; aspect-ratio: 4 / 3; border-radius: var(--radius-photo); overflow: hidden; background: var(--color-surface-alt); }
.photo img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }

/* Trust strip */
.trust__list { display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-2) var(--space-3); list-style: none; margin: 0 auto; padding: 0; font-size: 0.875rem; font-weight: 500; }
.trust__list li { padding: var(--space-1) var(--space-4); border-radius: var(--radius-pill); background: var(--color-surface-alt); }
.trust__note { margin-top: var(--space-2); text-align: center; font-size: 0.8125rem; color: var(--color-text-muted); }

/* Sections */
.section { padding: var(--space-8) 0; }
.section__head { margin-bottom: var(--space-5); }
.section__head h2 { font-size: clamp(1.375rem, 2.4vw, 1.75rem); }
.section__head p { margin-top: var(--space-2); color: var(--color-text-muted); font-size: 0.9375rem; }
.panel { background: var(--color-surface); border-radius: var(--radius-panel); box-shadow: var(--shadow-panel); padding: var(--space-6); }
.tel-text { display: inline-flex; align-items: center; flex-wrap: wrap; gap: var(--space-2); font-weight: 700; }
.tel-text small { font-size: 0.8125rem; font-weight: 400; color: var(--color-text-muted); }
.more-link { display: inline-flex; align-items: center; min-height: var(--tap-size); margin-top: var(--space-4); font-weight: 700; font-size: 0.9375rem; }

/* Fees and attendance */
.fee-panel { display: grid; grid-template-columns: 1.55fr 1fr; gap: var(--space-5); }
.fee-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.fee-card { display: grid; grid-template-columns: auto 1fr; column-gap: var(--space-3); align-content: start; }
.fee-card > .icon-badge { grid-row: span 4; }
.icon-badge { width: var(--tap-size); height: var(--tap-size); border-radius: 50%; background: var(--color-surface-alt); color: var(--color-primary); display: grid; place-items: center; }
.icon-badge .icon { width: 22px; height: 22px; }
.fee-card__timing { font-size: 0.8125rem; font-weight: 700; color: var(--color-accent); }
.fee-card h3 { font-size: 1rem; }
.fee-card__price { font-family: var(--font-heading); font-size: 1.625rem; font-weight: 700; color: var(--color-primary); line-height: 1.4; }
.fee-card__price span { font-size: 0.875rem; }
.fee-card__note { font-size: 0.8125rem; color: var(--color-text-muted); line-height: 1.6; }
.fee-tax { margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px dashed var(--color-line); font-size: 0.8125rem; color: var(--color-text-muted); }
.attend h3 { font-size: 1.0625rem; margin-bottom: var(--space-3); }
.attend ul { display: grid; gap: var(--space-3); margin: 0; padding: 0; list-style: none; }
.attend li { display: flex; align-items: center; gap: var(--space-3); }
.attend li .icon { color: var(--color-primary); width: 24px; height: 24px; }
.next-step { margin-top: var(--space-6); display: flex; flex-direction: column; align-items: center; gap: var(--space-4); text-align: center; }
.next-step p { font-weight: 700; word-break: auto-phrase; text-wrap: balance; }
.next-step__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-4); }

/* Courses and teachers: teacher card starts at the same line as the course cards */
.split { display: grid; gap: var(--space-6); align-items: start; }
.split--courses { grid-template-columns: 2fr 1fr; grid-template-rows: auto auto auto; row-gap: 0; }
.courses { grid-column: 1; grid-row: 1 / span 3; display: grid; grid-template-rows: subgrid; }
.split--courses > .teachers { grid-column: 2; grid-row: 2 / span 2; }
.course-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
.course-card { position: relative; display: flex; flex-direction: column; background: var(--color-surface); border-radius: var(--radius-panel); box-shadow: var(--shadow-panel); overflow: hidden; }
.course-card__photo { aspect-ratio: 16 / 9; background: linear-gradient(135deg, #d9b088, #8f5a33); color: rgba(255, 255, 255, 0.8); display: grid; place-items: center; }
.course-card__photo--alt { background: linear-gradient(135deg, #c79a7a, #6e3b2a); }
.course-card__photo .icon { width: 56px; height: 56px; stroke-width: 1.3; }
.course-card__body { padding: var(--space-4) var(--space-5) var(--space-8); }
.course-card__genre { font-size: 0.8125rem; font-weight: 700; color: var(--color-accent); }
.course-card h3 { font-size: 1.1875rem; }
.course-card__desc { margin-top: var(--space-2); font-size: 0.9375rem; }
.course-card__start { margin-top: var(--space-3); padding: var(--space-3) var(--space-4); border-radius: var(--radius-small); background: var(--color-bg); font-size: 0.875rem; }
.course-card__start strong { display: block; color: var(--color-primary); }
.course-card__arrow { position: absolute; right: var(--space-3); bottom: var(--space-2); width: var(--tap-size); height: var(--tap-size); border-radius: 50%; color: #fff; display: grid; place-items: center; }
.course-card__arrow::before { content: ""; position: absolute; inset: 6px; border-radius: 50%; background: var(--color-primary); }
.course-card__arrow:hover { color: #fff; }
.course-card__arrow:hover::before { background: var(--color-primary-hover); }
.course-card__arrow .icon { position: relative; width: 18px; height: 18px; }
.course-note { margin-top: var(--space-4); font-size: 0.9375rem; color: var(--color-text-muted); word-break: auto-phrase; }
.teachers { background: var(--color-surface); border-radius: var(--radius-panel); box-shadow: var(--shadow-panel); padding: var(--space-5); }
.teacher-grid { display: grid; gap: var(--space-5); }
.teacher { display: flex; gap: var(--space-4); align-items: flex-start; }
.teacher + .teacher { padding-top: var(--space-5); border-top: 1px solid var(--color-line); }
.teacher__photo { flex: 0 0 72px; height: 90px; margin: 0; border-radius: var(--radius-small); background: var(--color-surface-alt); overflow: hidden; }
.teacher__photo img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 20%; }
.photo-note { margin-top: var(--space-4); font-size: 0.75rem; color: var(--color-text-muted); }
.teacher__role { font-size: 0.75rem; color: var(--color-accent); font-weight: 700; line-height: 1.5; }
.teacher h3 { font-size: 1.0625rem; }
.teacher p:last-child { margin-top: var(--space-1); font-size: 0.875rem; line-height: 1.7; }

/* FAQ and access */
/* FAQ and access cards share the same height */
.split--info { grid-template-columns: 1.6fr 1fr; align-items: stretch; }
.faq-list { margin: 0; }
.faq-item { padding: var(--space-4) 0; border-bottom: 1px solid var(--color-line); }
.faq-item:first-child { padding-top: 0; }
.faq-item dt { font-weight: 700; font-size: 1rem; padding-left: var(--space-3); border-left: 3px solid var(--color-primary); line-height: 1.6; }
.faq-item dd { margin: var(--space-2) 0 0 15px; font-size: 0.9375rem; color: var(--color-text-muted); }
.access-head { display: flex; align-items: center; gap: var(--space-2); }
.access-head .icon { color: var(--color-primary); }
.access dl { margin: 0; display: grid; grid-template-columns: 4.5em 1fr; gap: var(--space-2) var(--space-3); font-size: 0.9375rem; }
.access dt { font-weight: 700; }
.access dd { margin: 0; }
.access .tel-text > span { font-family: var(--font-heading); font-size: 1.25rem; }
.map { margin-top: var(--space-4); aspect-ratio: 16 / 9; border-radius: 14px; background: repeating-linear-gradient(45deg, #f1e6d6, #f1e6d6 10px, #ebdcc7 10px, #ebdcc7 20px); display: grid; place-items: center; align-content: center; gap: var(--space-1); color: var(--color-text-muted); font-size: 0.8125rem; }
.map .icon { color: var(--color-primary); width: 32px; height: 32px; }

/* Closing CTA */
.closing { padding: 0 0 var(--space-8); }
.closing__band { display: flex; align-items: center; gap: var(--space-5); padding: var(--space-6) var(--space-7); border-radius: var(--radius-panel); background: var(--color-primary); color: #fff; }
.closing__band :focus-visible { outline-color: #fff; }
.closing__icon { flex: none; width: 64px; height: 64px; border-radius: 50%; background: rgba(255, 255, 255, 0.15); display: grid; place-items: center; }
.closing__icon .icon { width: 36px; height: 36px; }
.closing__text { margin-right: auto; }
.closing h2 { font-size: clamp(1.25rem, 2.2vw, 1.5rem); }
.closing p { margin-top: var(--space-1); font-size: 0.9375rem; }
.closing__actions { display: flex; flex-direction: column; align-items: center; gap: var(--space-2); }
.closing .button--primary { background: #fff; color: var(--color-primary); box-shadow: none; }
.closing .button--primary:hover { background: var(--color-surface-alt); color: var(--color-primary); }
.closing .tel-text { font-size: 0.875rem; }
.closing .tel-text small { color: #fff; }

/* Content pages (fees.html) */
/* No bottom padding: the gap to the first section comes from .page-section only */
.page-intro { padding: var(--space-7) 0 0; }
.page-intro h1 { font-size: clamp(1.625rem, 3.2vw, 2.25rem); }
.page-intro p { margin-top: var(--space-2); }
/* Same spacing as the top page: section gap 56px, heading to card 24px (.section__head) */
.page-section { margin-top: var(--space-8); }
.page-section .attend li { align-items: flex-start; }
.page-section .attend li .icon { margin-top: 3px; }
.page-note { margin: var(--space-6) 0 var(--space-8); font-size: 0.8125rem; color: var(--color-text-muted); }

/* Price table */
.table-wrap { overflow-x: auto; }
.price-table { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--color-surface); border-radius: var(--radius-panel); box-shadow: var(--shadow-panel); overflow: hidden; }
.price-table caption { padding-bottom: var(--space-2); text-align: left; font-size: 0.875rem; color: var(--color-text-muted); }
.price-table th, .price-table td { padding: var(--space-3) var(--space-4); text-align: left; border-bottom: 1px solid var(--color-line); }
.price-table thead th { background: var(--color-surface-alt); font-size: 0.875rem; }
.price-table tbody tr:last-child th, .price-table tbody tr:last-child td { border-bottom: 0; }
.price-table td:last-child, .price-table thead th:last-child { text-align: right; white-space: nowrap; }
.price-table td:last-child { font-family: var(--font-heading); font-weight: 700; color: var(--color-primary); }
.price-table__entry { background: #fffaf2; }
.table-note { margin-top: var(--space-2); font-size: 0.875rem; color: var(--color-text-muted); }

/* Course details with collapsible upper classes */
/* Both course cards share the same height; the "more classes" toggle sits at the bottom of each card */
.course-detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); margin-top: var(--space-5); align-items: stretch; }
.course-detail { display: flex; flex-direction: column; }
.course-detail > .class-list { margin-bottom: var(--space-3); }
.course-detail > .more-classes { margin-top: auto; }
/* While one card is expanded, keep the other toggle right below its content instead of the card bottom */
.course-detail-grid:has(details[open]) .course-detail > .more-classes { margin-top: 0; }
.course-detail h3 { font-size: 1.1875rem; }
.class-list { margin: var(--space-3) 0 0; }
.class-item { padding: var(--space-3) 0; border-top: 1px solid var(--color-line); }
.class-item dt { font-weight: 700; }
.class-item dd { margin: var(--space-1) 0 0; font-size: 0.9375rem; }
.class-item--entry { border-top: 0; padding: var(--space-3) var(--space-4); border-radius: var(--radius-small); background: var(--color-bg); }
.class-item__badge { margin-left: var(--space-2); padding: 0 var(--space-2); border-radius: var(--radius-pill); background: var(--color-primary); color: #fff; font-size: 0.75rem; vertical-align: middle; }
.more-classes { margin-top: var(--space-3); }
.more-classes summary { display: flex; align-items: center; gap: var(--space-2); min-height: var(--tap-size); font-weight: 700; color: var(--color-primary); cursor: pointer; list-style: none; }
.more-classes summary::-webkit-details-marker { display: none; }
.more-classes summary::before { content: ""; width: 8px; height: 8px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); transition: transform 0.15s; }
.more-classes[open] summary::before { transform: rotate(45deg); }
.more-classes summary:hover { text-decoration: underline; }

/* FAQ page: category links and accordion (same arrow as .more-classes) */
.faq-index ul { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-3); margin: var(--space-5) 0 0; padding: 0; list-style: none; }
.faq-index a { display: inline-flex; align-items: center; min-height: var(--tap-size); padding: 0 var(--space-4); border: 1.5px solid var(--color-primary); border-radius: var(--radius-pill); background: var(--color-surface); color: var(--color-primary); font-weight: 700; font-size: 0.9375rem; text-decoration: none; }
.faq-index a:hover { background: var(--color-surface-alt); }
.faq-accordion { padding-block: var(--space-3); }
.faq-entry + .faq-entry { border-top: 1px solid var(--color-line); }
.faq-entry summary { display: flex; align-items: center; gap: var(--space-3); min-height: var(--tap-size); padding: var(--space-3) 0; font-weight: 700; cursor: pointer; list-style: none; }
.faq-entry summary::-webkit-details-marker { display: none; }
.faq-entry summary::before { content: ""; flex: none; width: 8px; height: 8px; margin-inline: 2px; border-right: 2px solid var(--color-primary); border-bottom: 2px solid var(--color-primary); transform: rotate(-45deg); transition: transform 0.15s; }
.faq-entry[open] summary::before { transform: rotate(45deg); }
.faq-entry summary:hover { color: var(--color-primary); }
.faq-entry__answer { padding: 0 0 var(--space-4) calc(12px + var(--space-3)); }
.faq-entry__answer p { font-size: 0.9375rem; color: var(--color-text-muted); }

/* Teachers page */
.teacher-profiles { display: grid; gap: var(--space-5); margin-top: var(--space-8); }
.teacher-profile { display: grid; grid-template-columns: 200px 1fr; gap: var(--space-6); align-items: start; }
.teacher-profile__photo { margin: 0; }
.teacher-profile__photo img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius-panel); background: var(--color-surface-alt); }
/* The notice that the person in the photo does not exist sits right under the photo */
.teacher-profile__photo figcaption { margin-top: var(--space-2); font-size: 0.75rem; line-height: 1.5; color: var(--color-text-muted); }
.name-reading { display: block; margin-top: var(--space-1); font-family: var(--font-body); font-size: 0.8125rem; font-weight: 500; color: var(--color-text-muted); letter-spacing: 0.08em; }
.teacher-profile__role { font-size: 0.875rem; font-weight: 700; color: var(--color-accent); }
.teacher-profile h2 { font-size: clamp(1.375rem, 2.4vw, 1.75rem); }
.teacher-profile__message { margin-top: var(--space-3); padding: var(--space-3) var(--space-4); border-left: 3px solid var(--color-primary); border-radius: 0 var(--radius-small) var(--radius-small) 0; background: var(--color-bg); }
.teacher-profile h3 { margin-top: var(--space-5); font-size: 1.0625rem; }
.teacher-profile__career { margin: var(--space-2) 0 0; padding-left: 1.25em; }
.teacher-profile__career li + li { margin-top: var(--space-1); }
.teacher-profile h3 + .more-link, .faq-entry__answer .more-link { margin-top: var(--space-1); }

/* Trial page: steps */
.trial-intro { padding: var(--space-7) 0 var(--space-6); }
.trial-intro h1 { font-size: clamp(1.625rem, 3.2vw, 2.25rem); }
.trial-intro p { margin-top: var(--space-4); max-width: 44em; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-7); list-style: none; margin: 0; padding: 0; counter-reset: none; }
.step { position: relative; display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-5); background: var(--color-surface); border-radius: var(--radius-panel); box-shadow: var(--shadow-panel); }
/* Arrow between steps (replaces the "↓" in the source text) */
.step:not(:last-child)::after { content: ""; position: absolute; top: 50%; right: calc(-1 * var(--space-7) / 2 - 8px); width: 16px; height: 16px; border-top: 3px solid var(--color-primary); border-right: 3px solid var(--color-primary); transform: translateY(-50%) rotate(45deg); }
.step h2 { font-size: 1.1875rem; }
.step__number { display: block; font-family: var(--font-heading); font-size: 1.5rem; line-height: 1.2; color: var(--color-primary); }
.step p { font-size: 0.9375rem; }
.step strong { color: var(--color-primary); }
.trial-note { margin-top: var(--space-4); font-size: 0.8125rem; color: var(--color-text-muted); }
.trial-cta { margin-top: var(--space-7); text-align: center; }
.trial-cta h2 { font-size: clamp(1.25rem, 2.4vw, 1.625rem); }
.trial-cta p { margin-top: var(--space-3); }
.trial-cta .button { margin-top: var(--space-5); }

/* Trial page: sample form */
.sample-form-section { padding: var(--space-8) 0; }
.sample-form { max-width: 720px; margin-inline: auto; }
.sample-notice { display: flex; gap: var(--space-2); align-items: flex-start; padding: var(--space-3) var(--space-4); border-radius: var(--radius-small); background: var(--color-surface-alt); font-weight: 700; font-size: 0.9375rem; }
.form-field, .form-group { margin-top: var(--space-5); border: 0; padding: 0; min-width: 0; }
.form-label, .form-group legend { display: block; margin-bottom: var(--space-2); padding: 0; font-weight: 700; }
.required-mark { margin-left: var(--space-2); padding: 0 var(--space-2); border-radius: var(--radius-pill); background: var(--color-primary); color: #fff; font-size: 0.75rem; font-weight: 700; vertical-align: middle; }
.form-hint { margin: calc(-1 * var(--space-1)) 0 var(--space-2); font-size: 0.8125rem; color: var(--color-text-muted); }
.form-input { display: block; width: 100%; min-height: 48px; padding: var(--space-2) var(--space-3); border: 1.5px solid var(--color-input-border); border-radius: var(--radius-small); background: var(--color-surface); font: inherit; color: var(--color-text); }
textarea.form-input { min-height: 120px; resize: vertical; }
.form-input:focus-visible { border: 2px solid var(--color-primary); }
.choice-list { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-3); }
.choice { display: inline-flex; align-items: center; gap: var(--space-2); min-height: var(--tap-size); padding: var(--space-1) var(--space-4); border: 1.5px solid var(--color-input-border); border-radius: var(--radius-pill); background: var(--color-surface); cursor: pointer; }
.choice input { width: 20px; height: 20px; margin: 0; accent-color: var(--color-primary); }
.choice:has(input:checked) { border-color: var(--color-primary); background: var(--color-surface-alt); font-weight: 700; }
.choice:has(input:focus-visible) { outline: 3px solid var(--color-focus); outline-offset: 3px; }
/* Three purposes in one row on PC, stacked on smartphones */
.choice-list--purpose { display: grid; grid-template-columns: repeat(3, 1fr); }
.choice-list--purpose .choice { min-height: 56px; border-radius: var(--radius-small); line-height: 1.5; word-break: auto-phrase; }
.choice input { flex: none; }
/* Error state (DESIGN.md) */
.field-error { display: none; align-items: center; gap: var(--space-1); margin-top: var(--space-2); color: var(--color-error); font-size: 0.875rem; font-weight: 700; }
.has-error .field-error { display: flex; }
.has-error .form-input, .has-error .choice { border: 2px solid var(--color-error); }
.error-summary { margin-top: var(--space-5); padding: var(--space-4); border: 2px solid var(--color-error); border-radius: var(--radius-small); background: var(--color-error-bg); }
.error-summary h3 { font-size: 1rem; color: var(--color-error); }
.error-summary ul { margin: var(--space-2) 0 0; padding-left: 1.25em; }
.error-summary a { color: var(--color-error); font-weight: 700; display: inline-block; min-height: var(--tap-size); padding-top: var(--space-2); }
.form-actions { margin-top: var(--space-6); text-align: center; }
.form-actions .button { min-width: 280px; border: 0; font: inherit; font-weight: 700; cursor: pointer; }
/* Processing state: keep colors, block repeated submission */
.button[aria-disabled="true"] { cursor: progress; }
.spinner { width: 18px; height: 18px; border: 3px solid rgba(255, 255, 255, 0.4); border-top-color: #fff; border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.form-result { margin-top: var(--space-5); padding: var(--space-4); border: 2px solid var(--color-accent); border-radius: var(--radius-small); background: var(--color-surface); font-weight: 700; }
.form-result p + p { margin-top: var(--space-2); font-weight: 400; }
[hidden] { display: none !important; }

/* Footer */
.site-footer { padding: var(--space-6) 0; border-top: 1px solid var(--color-line); font-size: 0.875rem; color: var(--color-text-muted); text-align: center; line-height: 1.6; }

/* Smartphone */
@media (max-width: 900px) {
  .site-header__inner { min-height: 60px; gap: var(--space-3); }
  .site-logo { font-size: 1.0625rem; }
  .site-logo__mark { width: 32px; height: 32px; }

  /* Menu: with JS it collapses behind the button; without JS the list stays visible */
  .menu-button { display: none; margin-left: auto; width: var(--tap-size); height: var(--tap-size); border: 0; border-radius: var(--radius-small); background: transparent; color: var(--color-text); place-items: center; cursor: pointer; }
  .js .menu-button { display: grid; }
  .menu-button .icon { width: 28px; height: 28px; }
  .menu-button .icon-close { display: none; }
  .is-menu-open .menu-button .icon-open { display: none; }
  .is-menu-open .menu-button .icon-close { display: block; }
  .site-header__inner { flex-wrap: wrap; }
  .global-nav { flex-basis: 100%; margin-left: 0; padding-bottom: var(--space-3); }
  .js .global-nav { display: none; }
  .js .is-menu-open .global-nav { display: block; }
  .global-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .global-nav__list li + li { border-top: 1px solid var(--color-line); }
  .global-nav__link { width: 100%; min-height: 48px; font-size: 1rem; }
  /* Keep the CTA below the separator line instead of touching it */
  .global-nav__cta { margin: 0; padding-top: var(--space-4); }
  .global-nav__cta .button { width: 100%; min-height: 52px; font-size: 1rem; }

  .hero { padding: var(--space-5) 0 var(--space-7); }
  .hero__inner { display: block; }
  .hero__eyebrow { position: relative; z-index: 1; background: var(--color-bg); font-size: 0.8125rem; }
  .hero__title { position: relative; z-index: 1; max-width: 64%; }
  .hero .photo { position: absolute; top: 44px; right: calc(-1 * var(--space-4)); width: 50%; height: 176px; aspect-ratio: auto; border-radius: 0 0 0 var(--radius-photo); -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 40%); mask-image: linear-gradient(to right, transparent 0%, #000 40%); }
  .hero .photo img { object-position: 42% 50%; }
  .hero__lead { margin-top: var(--space-6); font-size: 1rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .button { width: 100%; }
  .hero__tel { flex-wrap: wrap; }

  .trust__list { padding-inline: var(--space-4); }
  .section { padding: var(--space-7) 0; }
  .panel, .teachers { padding: var(--space-5) var(--space-4); }
  .fee-panel { grid-template-columns: 1fr; gap: var(--space-3); }
  .fee-grid { grid-template-columns: 1fr; gap: 0; }
  .fee-card { grid-template-columns: auto 1fr auto; grid-template-areas: "icon timing price" "icon name price" "icon note note"; align-items: center; padding: var(--space-3) 0; border-bottom: 1px solid var(--color-line); }
  .fee-card:first-child { padding-top: 0; }
  .fee-card > .icon-badge { grid-area: icon; grid-row: auto; align-self: start; width: 36px; height: 36px; }
  .fee-card__timing { grid-area: timing; }
  .fee-card h3 { grid-area: name; }
  .fee-card__price { grid-area: price; font-size: 1.375rem; text-align: right; }
  .fee-card__note { grid-area: note; }
  .fee-tax { margin-top: var(--space-3); padding-top: 0; border-top: 0; }
  .attend li { align-items: flex-start; font-size: 0.9375rem; line-height: 1.6; }
  .next-step__actions { flex-direction: column; width: 100%; }
  .next-step__actions .button { width: 100%; }
  .split--courses, .split--info { grid-template-columns: 1fr; }
  .split--courses { grid-template-rows: none; row-gap: var(--space-6); }
  .courses { display: block; grid-row: auto; }
  .split--courses > .teachers { grid-column: auto; grid-row: auto; }
  .course-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .course-card { flex-direction: row; }
  .course-card__photo { flex: 0 0 96px; aspect-ratio: auto; }
  .course-card__photo .icon { width: 40px; height: 40px; }
  .course-card__body { padding: var(--space-4) var(--space-4) var(--space-8); }
  .course-card h3 { font-size: 1.0625rem; }
  .course-card__arrow { right: var(--space-2); bottom: var(--space-2); }
  .closing { padding-bottom: var(--space-7); }
  .closing__band { flex-direction: column; align-items: stretch; text-align: center; padding: var(--space-6) var(--space-5); gap: var(--space-3); }
  .closing__icon { margin-inline: auto; width: 52px; height: 52px; }
  .closing__text { margin-right: 0; }
  .closing__actions .button { width: 100%; }
  .closing .tel-text { justify-content: center; }

  .page-intro { padding: var(--space-6) 0 0; }
  .page-section { margin-top: var(--space-7); }
  .price-table th, .price-table td { padding: var(--space-3) var(--space-2); font-size: 0.9375rem; }
  .price-table th:first-child, .price-table td:first-child { padding-left: var(--space-3); }
  .price-table th:last-child, .price-table td:last-child { padding-right: var(--space-3); }
  .price-table thead th { font-size: 0.8125rem; white-space: nowrap; }
  .course-detail-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .teacher-profiles { margin-top: var(--space-7); gap: var(--space-4); }
  .teacher-profile { grid-template-columns: 1fr; gap: var(--space-4); }
  .teacher-profile__photo { width: 160px; }

  .trial-intro { padding: var(--space-6) 0 var(--space-5); }
  .steps { grid-template-columns: 1fr; gap: var(--space-7); }
  .step { padding: var(--space-5) var(--space-4); }
  .step:not(:last-child)::after { top: auto; bottom: calc(-1 * var(--space-7) / 2 - 8px); right: 50%; transform: translateX(50%) rotate(135deg); }
  .trial-cta .button, .form-actions .button { width: 100%; min-width: 0; }
  .choice-list--purpose { grid-template-columns: 1fr; }
  .sample-form-section { padding: var(--space-7) 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
  .spinner { animation-duration: 2.4s; }
  .more-classes summary::before, .faq-entry summary::before { transition: none; }
}