/* ============================================
   Nico English - styles
   Breakpoint: 756px
   ============================================ */

:root {
  /* base */
  --c-white: #FFFFFF;
  --c-pale-pink: #FDF1F1;
  --c-pale-pink-2: #FCE7E7;

  /* main / accent */
  --c-coral: #F0B9B9;
  --c-coral-deep: #E89B9B;
  --c-coral-soft: #F8D5D5;
  --c-blue: #C6E2EE;
  --c-blue-deep: #A8CFE0;
  --c-blue-soft: #E0EEF5;
  --c-green: #CDE0D2;
  --c-green-deep: #AECDB6;
  --c-green-soft: #E4EEE7;
  --c-line: #06C755;
  --c-insta: #E1306C;

  /* text */
  --c-text: #4A4A4A;
  --c-text-soft: #6E6E6E;
  --c-brown: #5C4841;

  /* layout */
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-soft: 0 8px 24px rgba(92, 72, 65, 0.08);
  --shadow-card: 0 6px 18px rgba(240, 185, 185, 0.25);
  --max-width: 1080px;
  --header-h: 76px;

  --font-base: "Zen Maru Gothic", "Kiwi Maru", "Hiragino Maru Gothic ProN", "Yu Gothic", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--c-text);
  background: var(--c-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; padding: 0; margin: 0; }
button { font: inherit; }

.sp-only { display: none; }
.pc-only { display: block; }
.nowrap { white-space: nowrap; }

.anchor-offset {
  display: block;
  position: absolute;
  margin-top: calc(-1 * var(--header-h));
  pointer-events: none;
  visibility: hidden;
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid rgba(240, 185, 185, 0.3);
  z-index: 100;
  transform: translateY(0);
  transition: transform 0.35s ease;
}
.header.is-hidden { transform: translateY(-110%); }

.header__inner {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.logo__img {
  height: 40px;
  width: auto;
  display: block;
}

.nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav__list {
  display: flex;
  gap: 22px;
}
.nav__list a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text);
  position: relative;
  padding: 4px 2px;
  transition: color 0.2s;
}
.nav__list a:hover { color: var(--c-coral-deep); }
.nav__list a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -2px;
  width: 0; height: 2px;
  background: var(--c-coral);
  border-radius: 2px;
  transition: width 0.25s, left 0.25s;
}
.nav__list a:hover::after { width: 100%; left: 0; }

.hamburger {
  display: none;
  width: 44px; height: 44px;
  margin-left: auto;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}
.hamburger span {
  display: block;
  position: absolute;
  left: 10px;
  width: 24px; height: 2px;
  background: var(--c-brown);
  border-radius: 2px;
  transition: transform 0.25s, top 0.25s, opacity 0.2s;
}
.hamburger span:nth-child(1) { top: 14px; }
.hamburger span:nth-child(2) { top: 21px; }
.hamburger span:nth-child(3) { top: 28px; }
.hamburger.is-open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s;
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-card); }

.btn--primary {
  background: var(--c-white);
  color: var(--c-brown);
  border-color: var(--c-coral);
}
.btn--primary:hover { background: var(--c-pale-pink); }

.btn--cta {
  background: var(--c-coral);
  color: #fff;
  border-color: var(--c-coral);
}
.btn--cta:hover { background: var(--c-coral-deep); border-color: var(--c-coral-deep); }

.btn--line {
  background: var(--c-green);
  color: var(--c-brown);
  border-color: var(--c-green);
}
.btn--line:hover { background: var(--c-green-deep); border-color: var(--c-green-deep); }

.btn--insta {
  background: linear-gradient(135deg, #F0B9B9, #E8A0C0);
  color: #fff;
  border-color: transparent;
}
.btn--insta:hover { filter: brightness(1.05); }

.nav__cta { padding: 9px 20px; font-size: 14px; }

/* ============================================
   Badges
   ============================================ */
.badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.badge--green {
  background: var(--c-green);
  color: var(--c-brown);
}

/* ============================================
   Garland (旗の装飾)
   pennants are generated by JS (script.js)
   ============================================ */
.garland {
  width: 100%;
  pointer-events: none;
}
.garland--top {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 2;
}
.garland--inline {
  display: block;
  margin: 0 auto 24px;
  max-width: 880px;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: var(--header-h) 0 0;
  background: var(--c-pale-pink);
  overflow: hidden;
}

/* ============================================
   Hero Slider
   ============================================ */
.hero-slider {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 0;
  /* 画像の標準アスペクト比 16:5（領域を確保し読み込み中の崩れを防ぐ） */
  aspect-ratio: 16 / 5;
  overflow: hidden;
  background: var(--c-pale-pink);
}

.hero-slider__track {
  position: absolute;
  inset: 0;
}

.hero-slider__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--fade-ms, 800ms) ease-in-out;
  pointer-events: none;
}
.hero-slider__slide.is-active {
  opacity: 1;
  pointer-events: auto;
}
.hero-slider__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* dots */
.hero-slider__dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.hero-slider__dots:empty { display: none; }
.hero-slider__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(92, 72, 65, 0.3);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.hero-slider__dot:hover { transform: scale(1.2); }
.hero-slider__dot.is-active {
  background: var(--c-coral-deep);
  transform: scale(1.2);
}

/* fallback (画像0枚時) */
.hero-slider__fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.hero-slider.is-loaded .hero-slider__fallback { display: none; }

/* ============================================
   Sections (common)
   ============================================ */
.section {
  position: relative;
  padding: 96px 24px;
}
.section--alt { background: var(--c-pale-pink); }

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}
.section__head {
  text-align: center;
  margin-bottom: 56px;
}
.section__sub {
  font-family: "Kiwi Maru", serif;
  letter-spacing: 0.2em;
  color: var(--c-coral-deep);
  font-size: 13px;
  margin: 0 0 8px;
  font-weight: 500;
}
.section__title {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 900;
  color: var(--c-brown);
}
.section__desc {
  margin-top: 16px;
  color: var(--c-text-soft);
}

/* ============================================
   Features - main 3 cards (2-layer)
   ============================================ */
.features-main {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}
.feature-big {
  border-radius: var(--radius-xl);
  padding: 24px 20px 28px;
  text-align: center;
  background: var(--c-white);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  transition: transform 0.25s, box-shadow 0.25s;
}
.feature-big:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(92, 72, 65, 0.12);
}
.feature-big--pink  { background: linear-gradient(180deg, var(--c-pale-pink), #FFF); border: 2px solid var(--c-coral-soft); }
.feature-big--blue  { background: linear-gradient(180deg, var(--c-blue-soft), #FFF); border: 2px solid var(--c-blue); }
.feature-big--green { background: linear-gradient(180deg, var(--c-green-soft), #FFF); border: 2px solid var(--c-green); }

.feature-big__title {
  margin: 0 0 12px;
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 900;
  color: var(--c-brown);
  line-height: 1.45;
}
.feature-big__icon {
  margin: 8px 0 16px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.feature-big__msg {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-brown);
}
.feature-big__msg--pink  { background: var(--c-coral-soft); }
.feature-big__msg--blue  { background: var(--c-blue); }
.feature-big__msg--green { background: var(--c-green); }

/* Features - sub small cards */
.features-sub {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature-sub {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 24px 18px;
  text-align: center;
  box-shadow: 0 4px 14px rgba(92, 72, 65, 0.06);
  border: 1px solid rgba(240, 185, 185, 0.2);
}
.feature-sub__icon {
  width: 56px; height: 56px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  background: var(--c-pale-pink);
  border-radius: 50%;
}
.feature-sub__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-brown);
  line-height: 1.4;
}
.feature-sub__text {
  margin: 0;
  font-size: 13px;
  color: var(--c-text);
  line-height: 1.7;
}

/* ============================================
   Teacher
   ============================================ */
.teacher {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: center;
  background: var(--c-white);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-soft);
  max-width: 880px;
  margin: 0 auto;
  border: 1px solid rgba(240, 185, 185, 0.25);
}
.teacher__photo { display: flex; justify-content: center; }
.teacher__photo-frame {
  width: 200px; height: 200px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--c-pale-pink);
  box-shadow: var(--shadow-card);
  border: 4px solid var(--c-white);
}
.teacher__label {
  display: inline-block;
  margin: 0 0 8px;
  padding: 4px 12px;
  background: var(--c-coral);
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.teacher__name {
  margin: 0 0 8px;
  font-size: 24px;
  color: var(--c-brown);
  font-weight: 900;
}
.teacher__nick {
  display: inline-block;
  background: var(--c-pale-pink-2);
  color: var(--c-brown);
  padding: 0 10px;
  border-radius: 8px;
  margin-right: 4px;
}
.teacher__cert {
  display: inline-block;
  background: var(--c-green);
  color: var(--c-brown);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  margin: 0 0 12px;
}
.teacher__profile {
  margin: 0 0 20px;
  color: var(--c-text);
  line-height: 1.85;
}
.teacher__msg {
  background: var(--c-pale-pink);
  border-radius: 14px;
  padding: 14px 18px;
}
.teacher__msg-label {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-coral-deep);
}
.teacher__msg p:last-child {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text);
  line-height: 1.7;
}

/* ============================================
   Class cards
   ============================================ */
.class-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.class-card {
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s;
  color: var(--c-brown);
}
.class-card:hover { transform: translateY(-4px); }
.class-card--pink { background: var(--c-coral); }
.class-card--blue { background: var(--c-blue); }
.class-card--green { background: var(--c-green); }

.class-card__title {
  margin: 0 0 10px;
  font-size: 22px;
  font-weight: 900;
}
.class-card__age {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.7);
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
}
.class-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
}

/* ============================================
   Events / Schedule
   ============================================ */
.events-cta {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  margin-bottom: 32px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(240, 185, 185, 0.25);
}
.events-cta__lead {
  margin: 0 0 28px;
  font-size: clamp(15px, 2.2vw, 17px);
  font-weight: 700;
  color: var(--c-brown);
  line-height: 1.85;
}
.events-cta__lead span {
  display: inline-block;
  font-size: 1.6em;
  margin-right: 4px;
  vertical-align: middle;
}
.events-cta__buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.info-list {
  margin: 0;
  background: var(--c-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.info-list__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  border-bottom: 1px solid var(--c-pale-pink);
}
.info-list__row:last-child { border-bottom: none; }
.info-list__row dt {
  background: var(--c-pale-pink);
  color: var(--c-brown);
  font-weight: 700;
  padding: 18px 24px;
  margin: 0;
}
.info-list__row dd {
  padding: 18px 24px;
  margin: 0;
  color: var(--c-text);
}

/* ============================================
   Access
   ============================================ */
.access {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.access__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-white);
  box-shadow: var(--shadow-soft);
  min-height: 320px;
}
.access__map-frame {
  width: 100%;
  height: 100%;
  min-height: 320px;
  border: 0;
  display: block;
}
.access__body {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-soft);
}
.access__name {
  margin: 0 0 12px;
  color: var(--c-brown);
  font-size: 22px;
}
.access__addr,
.access__route {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.85;
}
.access__link {
  margin: 8px 0 0;
  font-size: 14px;
}
.access__link a {
  color: var(--c-coral-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.access__link a:hover { color: var(--c-brown); }

/* ============================================
   Contact / SNS section
   ============================================ */
.section--contact {
  position: relative;
  background: linear-gradient(180deg, var(--c-pale-pink) 30%, #F8E0E0 100%);
  padding-top: 56px;
  padding-bottom: 80px;
  overflow: hidden;
}

.contact__animal {
  position: absolute;
  bottom: 30px;
  z-index: 1;
}
.contact__animal--left { left: 4%; }
.contact__animal--right { right: 4%; }

.sns-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 560px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.sns-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.sns-card__label {
  margin: 0;
  font-weight: 700;
  font-size: 15px;
  color: var(--c-brown);
}
.qr { text-align: center; }
.qr__box {
  width: 100px; height: 100px;
  background: var(--c-white);
  border: 2px solid var(--c-coral);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-coral-deep);
  margin: 0 auto;
  background-image:
    linear-gradient(45deg, var(--c-pale-pink) 25%, transparent 25%),
    linear-gradient(-45deg, var(--c-pale-pink) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--c-pale-pink) 75%),
    linear-gradient(-45deg, transparent 75%, var(--c-pale-pink) 75%);
  background-size: 12px 12px;
  background-position: 0 0, 0 6px, 6px -6px, -6px 0;
}

.contact__note {
  text-align: center;
  margin: 32px 0 0;
  color: var(--c-text-soft);
  font-size: 14px;
  position: relative;
  z-index: 2;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--c-white);
  padding: 32px 24px 20px;
  color: var(--c-brown);
  border-top: 1px solid rgba(240, 185, 185, 0.4);
  text-align: center;
}
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto 16px;
}
.footer__name {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 900;
}
.footer__addr {
  margin: 0;
  font-size: 12px;
  color: var(--c-text-soft);
}
.copyright {
  margin: 0;
  font-size: 11px;
  color: var(--c-text-soft);
}

/* ============================================
   Responsive (756px)
   ============================================ */
@media (max-width: 756px) {
  :root { --header-h: 64px; }

  .sp-only { display: inline; }
  .pc-only { display: none !important; }

  .header__inner { padding: 0 16px; }
  .logo__img { height: 32px; }

  .hamburger { display: block; }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    flex-direction: column;
    gap: 0;
    padding: 24px;
    margin: 0;
    border-bottom: 1px solid rgba(240, 185, 185, 0.3);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }
  .nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__list { flex-direction: column; gap: 0; width: 100%; }
  .nav__list li { border-bottom: 1px solid var(--c-pale-pink); }
  .nav__list li:last-child { border-bottom: none; }
  .nav__list a { display: block; padding: 16px 8px; font-size: 16px; }
  .nav__list a::after { display: none; }
  .nav__cta { margin-top: 16px; width: 100%; padding: 14px; font-size: 15px; }

  .hero { padding: var(--header-h) 0 0; }
  .hero-slider { border-radius: 0; }

  .section { padding: 64px 16px; }
  .section__head { margin-bottom: 36px; }

  .features-main { grid-template-columns: 1fr; gap: 16px; }
  .features-sub { grid-template-columns: 1fr; gap: 12px; }

  .teacher {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 24px;
    text-align: center;
  }
  .teacher__photo-frame { width: 160px; height: 160px; }
  .teacher__name { font-size: 22px; }
  .teacher__msg { text-align: left; }

  .class-cards { grid-template-columns: 1fr; gap: 16px; }

  .info-list__row { grid-template-columns: 1fr; }
  .info-list__row dt { padding: 12px 20px; }
  .info-list__row dd { padding: 12px 20px; }

  .events-cta { padding: 32px 20px; }
  .events-cta__buttons { flex-direction: column; align-items: stretch; }
  .events-cta__buttons .btn { width: 100%; }

  .access { grid-template-columns: 1fr; }
  .access__map, .access__map-placeholder { min-height: 220px; }
  .access__body { padding: 24px; }

  .contact__animal { display: none; }
  .sns-grid { grid-template-columns: 1fr; gap: 16px; max-width: 320px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}