/* Smiley English — フラット・写真帯ヒーロー（グラデーション／立体ボタン／枠線カード不使用） */
:root {
  --page: #ffffff;
  --muted-band: #f3f3f3;
  --pickup-band: #fff9e6;
  --border-soft: #e6e6e6;
  --leaf: #6ebe49;
  --leaf-dark: #4fa02f;
  --accent-pink: #ff7eb3;
  --accent-blue: #5eb6e8;
  --accent-orange: #ff9a3c;
  --text: #333333;
  --text-muted: #5a5a5a;
  --white: #ffffff;
  --font-rounded: "M PLUS Rounded 1c", "Zen Maru Gothic", "Hiragino Maru Gothic ProN",
    "Hiragino Sans", sans-serif;
  --ease: cubic-bezier(0.33, 1, 0.68, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-rounded);
  color: var(--text);
  background: var(--page);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--leaf-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent-orange);
}

/* ---------- 背景（単色のみ） ---------- */
.body-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: var(--page);
}

/* ---------- ヘッダー（カラフルナビピル） ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
}

.header-main {
  background: var(--white);
  border-bottom: 1px solid var(--border-soft);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.65rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  text-decoration: none;
  color: inherit;
}

.brand__name {
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
  line-height: 1.35;
  color: var(--text);
}

.brand-color--pink {
  color: #ff5c94;
}

.brand-color--blue {
  color: #42a5e8;
}

.brand-color--green {
  color: #52b530;
}

.brand-color--orange {
  color: #ff9a3c;
}

.brand-amp {
  color: #777;
  font-weight: 800;
}

.brand__tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  background: var(--white);
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-toggle:hover {
  background: var(--muted-band);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease;
}

.nav-toggle__bar::before {
  top: -6px;
}

.nav-toggle__bar::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after {
  transform: translateY(-6px) rotate(-45deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav--colorful .nav__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
  color: #fff;
  border: 2px solid rgba(0, 0, 0, 0.1);
  transition: filter 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

.nav--colorful .nav__link:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.nav--colorful .nav__link[aria-current="page"] {
  box-shadow: 0 0 0 3px #2b2b2b;
}

.nav__link--home {
  background: #ff6b9d;
}

.nav__link--school {
  background: #3fbf7f;
}

.nav__link--programs {
  background: #3d9ae8;
}

.nav__link--price {
  background: #ff962e;
}

.nav__link--voices {
  background: #9b7eed;
}

.nav__link--calendar {
  background: #00b4a6;
}

.nav__link--contact {
  background: #5a6dcc;
}

/* ---------- 体験予約カレンダー ---------- */
.cal-eyebrow {
  font-size: 0.85rem;
  font-weight: 800;
  color: #00a896;
  letter-spacing: 0.06em;
  margin: 0 0 0.35rem;
}

.cal-intro {
  background: #fff9e6;
  border: 2px solid #ffd54f;
  padding: 1rem 1.2rem;
  margin: 1rem 0 1.5rem;
  font-size: 0.92rem;
  border-radius: 12px;
}

.cal-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.15rem;
  margin: 0 0 1.25rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.cal-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.cal-month-title {
  font-size: 1.35rem;
  font-weight: 900;
  margin: 0 0 1rem;
  color: #333;
  text-align: center;
}

.cal-table-wrap {
  overflow-x: auto;
  margin: 0 0 1.5rem;
  border: 1px solid var(--border-soft);
}

.cal-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
  background: var(--white);
}

.cal-table th {
  padding: 0.5rem 0.25rem;
  font-size: 0.76rem;
  font-weight: 800;
  color: #333;
}

.cal-table th.cal-th--sun {
  background: #ffd6e8;
  color: #ad1457;
}

.cal-table th.cal-th--sat {
  background: #bbdefb;
  color: #0d47a1;
}

.cal-table th.cal-th--week {
  background: #e8eaf6;
}

.cal-table td {
  border: 1px solid var(--border-soft);
  vertical-align: top;
  height: 4.25rem;
  padding: 0.4rem;
  width: 14.28%;
}

.cal-table td.cal-empty {
  background: #f5f5f5;
}

.cal-table td.cal-cell--sun {
  background: #fff5f9;
}

.cal-table td.cal-cell--sat {
  background: #f3f9ff;
}

.cal-day {
  font-weight: 900;
  font-size: 0.9rem;
}

.cal-slot {
  margin-top: 0.2rem;
  font-size: 0.68rem;
  line-height: 1.35;
  color: var(--text-muted);
}

.cal-tag {
  display: inline-block;
  margin-top: 0.15rem;
  padding: 0.12rem 0.35rem;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 900;
}

.cal-tag--ok {
  background: #c8f7e0;
  color: #0a6b45;
}

.cal-tag--few {
  background: #fff4d2;
  color: #946200;
}

.cal-tag--no {
  background: #ffd6d6;
  color: #a32020;
}

.cal-tag--off {
  background: #e8e8e8;
  color: #666;
}

.cal-footnote {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin: 1.5rem 0 0;
  padding: 1rem;
  background: #f7f7f7;
  border-radius: 8px;
}

.cal-tel {
  margin-top: 1rem;
  font-weight: 800;
  font-size: 0.95rem;
}

/* ---------- ページ内写真 ---------- */
.page-photo {
  margin: 1.25rem 0 0;
}

.page-photo img {
  width: 100%;
  display: block;
  aspect-ratio: 21 / 9;
  max-height: 300px;
  object-fit: cover;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.photo-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.photo-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.split-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin: 1rem 0 0;
}

.split-photos img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------- ヒーロー：右→左スクロール写真 ---------- */
.hero-block {
  padding-bottom: 0;
}

.hero-scroller {
  overflow: hidden;
  width: 100%;
  background: #d9eef9;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.hero-scroller__track {
  display: flex;
  width: max-content;
  animation: hero-marquee 55s linear infinite;
  will-change: transform;
}

@keyframes hero-marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.hero-scroller__cell {
  position: relative;
  flex: 0 0 auto;
  width: clamp(260px, 42vw, 440px);
  height: clamp(200px, 28vw, 300px);
  margin: 0;
  overflow: hidden;
}

.hero-scroller__cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-intro {
  padding-top: 2rem;
  padding-bottom: 1.5rem;
}

.hero-intro__badge {
  display: inline-block;
  margin: 0 0 0.85rem;
  padding: 0.2rem 0.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 3px solid var(--leaf);
}

.hero-intro h1 {
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  line-height: 1.45;
  margin: 0 0 1rem;
  font-weight: 800;
}

.hero-intro__lead {
  margin: 0 0 1.35rem;
  color: var(--text-muted);
  max-width: 52em;
}

.hero-intro__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

/* ---------- レイアウト ---------- */
.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

.section {
  margin-top: 3rem;
}

.section:first-of-type {
  margin-top: 2.25rem;
}

.section-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 3px solid var(--leaf);
}

.lead {
  font-size: 1.02rem;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
}

.section-cta {
  margin-top: 1.25rem;
}

.section-closing {
  text-align: center;
  padding: 2rem 0 1rem;
}

.fineprint {
  margin: 0.85rem 0 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

/* ---------- 帯セクション（囲い線なし／淡色だけ） ---------- */
.section--band {
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  padding-left: calc(50vw - 50%);
  padding-right: calc(50vw - 50%);
  padding-top: 2.25rem;
  padding-bottom: 2.25rem;
  margin-top: 3rem;
  background: var(--muted-band);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.section--band .section-title {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.section--band .grid-3 {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.feature {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border-soft);
}

.feature:last-child {
  border-bottom: none;
}

.feature__head {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text);
}

.feature__body {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ---------- ボタン（フラット・単色） ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.94rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: opacity 0.2s ease, background 0.2s ease;
  font-family: inherit;
}

.btn:hover {
  opacity: 0.9;
}

.btn--primary {
  background: var(--leaf);
  color: var(--white);
  border-color: var(--leaf);
}

.btn--outline {
  background: var(--white);
  color: var(--leaf-dark);
  border-color: var(--leaf);
}

.btn--accent {
  background: var(--accent-blue);
  color: var(--white);
  border-color: var(--accent-blue);
}

/* 下位ページ互換 */
.btn--secondary {
  background: var(--white);
  color: var(--leaf-dark);
  border: 2px solid var(--leaf);
}

.btn--sky {
  background: var(--accent-blue);
  color: var(--white);
  border: 2px solid var(--accent-blue);
}

/* ---------- グリッド ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

/* カード廃止方針：下位ページの .card は線のみ・影・角丸框なし */
.card {
  padding: 1.15rem 0;
  background: transparent;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid var(--border-soft);
  box-shadow: none;
}

.card:last-child {
  border-bottom: none;
}

.card:hover {
  transform: none;
  box-shadow: none;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--text);
  font-weight: 800;
}

.card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.card__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

/* ---------- ピックアップ ---------- */
.pickup {
  background: var(--pickup-band);
  padding: 1.5rem 0;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  padding-left: calc(50vw - 50%);
  padding-right: calc(50vw - 50%);
  margin-top: 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.pickup .section-title {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.pickup > .meta,
.pickup > h2,
.pickup > p {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.pickup h2.section-title {
  margin-bottom: 0.75rem;
}

.pickup .meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.pickup h2 {
  font-size: 1.22rem;
}

.note-text {
  margin-top: 1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.note-box {
  background: #eef7fb;
  padding: 0.85rem 0;
  border: none;
  border-left: 4px solid var(--accent-blue);
  padding-left: 1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.split-media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.split-media img {
  border-radius: 0;
  box-shadow: none;
  width: 100%;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checklist li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.55rem;
  font-size: 0.95rem;
}

.checklist li::before {
  content: "・";
  position: absolute;
  left: 0;
  color: var(--leaf-dark);
  font-weight: 900;
}

/* ---------- アコーディオン ---------- */
.accordion {
  border: 1px solid var(--border-soft);
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
}

.accordion details {
  background: var(--white);
  border-bottom: 1px solid var(--border-soft);
}

.accordion details:last-child {
  border-bottom: none;
}

.accordion summary {
  cursor: pointer;
  padding: 1rem 1rem;
  font-weight: 800;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary::after {
  content: "+";
  font-weight: 700;
  color: var(--text-muted);
}

.accordion details[open] summary::after {
  content: "–";
}

.accordion .acc-body {
  padding: 0 1rem 1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* ---------- テーブル ---------- */
.table-wrap {
  overflow-x: auto;
  border-radius: 0;
  box-shadow: none;
  border: 1px solid var(--border-soft);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  font-size: 0.9rem;
}

th,
td {
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border-soft);
}

th {
  background: var(--muted-band);
  color: var(--text);
  font-weight: 800;
}

.achievement-list {
  background: transparent;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  border: 1px solid var(--border-soft);
  padding: 1rem 1.1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.achievement-list li {
  margin-bottom: 0.55rem;
}

.form {
  background: transparent;
  padding: 0;
  border-radius: 0;
  box-shadow: none;
}

.form label {
  display: block;
  font-weight: 800;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.form input,
.form textarea,
.form select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border-soft);
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: 1rem;
  background: var(--white);
}

.form-hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: -0.5rem;
  margin-bottom: 1rem;
}

.site-footer {
  margin-top: 3.5rem;
  padding: 2.25rem 1.25rem 2rem;
  background: #e9f5e4;
  border-top: 1px solid var(--border-soft);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-link-row {
  margin-top: 0.5rem;
}

.footer-brand {
  font-weight: 800;
  color: var(--text);
  font-size: 1rem;
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.65rem 0 0;
  padding: 0;
  list-style: none;
}

.footer-badges li {
  background: var(--white);
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  font-size: 0.74rem;
  font-weight: 700;
  border: 1px solid var(--border-soft);
  box-shadow: none;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger .reveal:nth-child(1) {
  transition-delay: 0.04s;
}
.stagger .reveal:nth-child(2) {
  transition-delay: 0.1s;
}
.stagger .reveal:nth-child(3) {
  transition-delay: 0.16s;
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .split-media {
    grid-template-columns: 1fr;
  }

  .nav--colorful .nav__link {
    font-size: 0.7rem;
    padding: 0.35rem 0.5rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: absolute;
    top: 100%;
    right: 1rem;
    left: 1rem;
    background: var(--white);
    border-radius: 8px;
    padding: 0.5rem;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--border-soft);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.45s ease, opacity 0.35s ease;
  }

  .nav.is-open {
    max-height: 560px;
    opacity: 1;
    pointer-events: auto;
    margin-top: 0.5rem;
  }

  .header-inner {
    flex-wrap: wrap;
    position: relative;
  }

  .section--band .feature {
    border-bottom: 1px solid #dcdcdc;
  }

    grid-template-columns: 1fr;
  }

  .photo-grid--2 {
    grid-template-columns: 1fr;
  }

  .split-photos {
    grid-template-columns: 1fr;
  }

  .page-photo img {
    max-height: 220px;
    aspect-ratio: 16 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scroller__track {
    animation: none !important;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}