/* Hoppyストレッチレッスン — 表紙のある教室
   Palette: Flexoki (MIT) — stephango.com/flexoki */

:root {
  --paper: #FFFCF0;
  --face: #F2F0E5;
  --deep: #E6E4D9;
  --ink: #100F0F;
  --ink-soft: #6F6E69;
  --line: #DAD8CE;
  --orange: #BC5215;
  --orange-soft: #DA702C;
  --teal: #24837B;
  --teal-soft: #3AA99F;
  --gray-start: #B7B5AC;
  --serif: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --num: "Playfair Display", "Shippori Mincho B1", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  overflow-x: clip;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 2;
  letter-spacing: 0.05em;
  color: var(--ink);
  line-break: strict;
  background-color: var(--paper);
  background-image: url("../assets/paper-texture.webp");
  background-size: 512px;
}

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

/* ---- sections ---- */
.sec { padding: 80px 24px; position: relative; }
.sec--face { background-color: var(--face); }
.sec--deep { background-color: var(--deep); }
.sec__inner { max-width: 72rem; margin: 0 auto; position: relative; }

.sec__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  line-height: 1.6;
  letter-spacing: 0.05em;
  margin-bottom: 1.5em;
  position: relative;
}
.sec__title-line { display: block; }
.sec__title-line--i1 { padding-left: 1em; }

/* ---- hero ---- */
.hero {
  min-height: 88vh;
  padding: 48px 24px 96px;
  max-width: 72rem;
  margin: 0 auto;
  position: relative;
}
.hero__brand {
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  margin-bottom: clamp(2.5rem, 8vh, 5rem);
}
.hero__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 5.5vw, 3.25rem);
  line-height: 1.55;
  letter-spacing: 0.06em;
  margin-bottom: 1.2em;
  max-width: 22em;
}
.hero__line { display: block; overflow: hidden; }
.hero__line--i1 { padding-left: 0.5em; }
.hero__line--i2 { padding-left: 1em; }
.hero__line-inner {
  display: inline-block;
  transform: translateY(110%);
  animation: line-up 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}
.hero__line--i1 .hero__line-inner { animation-delay: 0.15s; }
.hero__line--i2 .hero__line-inner { animation-delay: 0.3s; }
@keyframes line-up { to { transform: translateY(0); } }

.hero__lead { max-width: 34em; margin-bottom: 2.5rem; }
.hero__facts { margin-bottom: 2.5rem; }
.hero__facts-main { font-family: var(--serif); font-size: 1.125rem; letter-spacing: 0.08em; }
.hero__facts-sub { font-family: var(--serif); font-size: 1.125rem; letter-spacing: 0.08em; margin-bottom: 0.5rem; }
.hero__facts-note { font-size: 0.9375rem; color: var(--ink-soft); }

.hero__brand-scrap { width: clamp(28px, 3vw, 40px); margin-left: 0.4em; transform: rotate(-6deg) translateY(2px); }
.hero__fig-stretch { position: absolute; top: 6%; right: 2%; width: clamp(110px, 16vw, 210px); }
.hero__fig-bend { position: absolute; bottom: 4%; right: 10%; width: clamp(100px, 15vw, 200px); }

/* ---- CTA ---- */
.cta-wrap { margin: 2rem 0 0; }
.cta {
  position: relative;
  display: inline-block;
  padding: 18px 40px;
  text-decoration: none;
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--sans);
}
.cta__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: fill;
  z-index: 0;
}
.cta__label {
  position: relative;
  z-index: 1;
  color: var(--paper);
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.cta:hover .cta__bg { filter: brightness(1.12); }
.cta:focus-visible { outline: 2px solid var(--teal); outline-offset: 4px; }

/* secondary CTA: LINE consult (subordinate to primary) */
.cta-sub { margin-top: 1.25rem; display: flex; align-items: center; gap: 1em; flex-wrap: wrap; }
.cta-line {
  display: inline-block;
  padding: 12px 32px;
  border: 1.5px solid var(--teal);
  border-radius: 9999px;
  color: var(--teal);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.cta-line:hover { background: rgba(36, 131, 123, 0.08); }
.cta-line:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }
.cta-sub__note { font-size: 0.8125rem; color: var(--ink-soft); }
.faq .cta-sub { margin-top: 2.5rem; }

/* ---- decorations ---- */
.deco { pointer-events: none; user-select: none; }
.deco--scrap {
  width: clamp(36px, 4vw, 56px);
  vertical-align: middle;
  margin-left: 0.5em;
}
.reveal .deco--scrap, .deco.reveal { opacity: 0; transform: rotate(-5deg) translateY(12px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.inview .deco--scrap, .deco.reveal.inview { opacity: 1; transform: rotate(0) translateY(0); }

/* ---- scroll-driven text sweep (readable animation) ---- */
.sweep { color: var(--ink); }
@supports (animation-timeline: view()) {
  .sweep {
    background-image: linear-gradient(90deg, var(--ink) 50%, var(--gray-start) 50%);
    background-size: 205% 100%;
    background-position: 100% 0;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: sweep-in linear both;
    animation-timeline: view();
    animation-range: entry 30% cover 55%;
  }
  @keyframes sweep-in { to { background-position: 0% 0; } }
}

/* marker sweep — one key phrase per section */
.marker {
  background-image: linear-gradient(transparent 64%, rgba(188, 82, 21, 0.32) 64%, rgba(188, 82, 21, 0.32) 90%, transparent 90%);
  background-repeat: no-repeat;
  background-size: 0% 100%;
  transition: background-size 0.5s ease 0.25s;
}
.inview .marker, .marker.inview { background-size: 100% 100%; }

/* generic reveal (non-text décor / blocks) */
.reveal { }

/* ---- S2 concerns ---- */
.concerns .sec__title { max-width: 20em; }
.check-list { list-style: none; max-width: 36em; }
.check-list__item {
  position: relative;
  padding: 0.65em 0 0.65em 2.2em;
  border-bottom: 1px solid var(--line);
}
.check-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1em;
  width: 1.35em;
  height: 0.95em;
  background-image: url("../assets/check-scrap.webp");
  background-repeat: no-repeat;
  background-size: contain;
}
.check-list__item:last-child { border-bottom: none; }
.concerns__close { margin-top: 1.5rem; font-family: var(--serif); }

/* ---- S3 lesson steps ---- */
.lesson__lead { margin-bottom: 3rem; max-width: 36em; }
.steps { list-style: none; max-width: 44em; }
.steps__item {
  display: flex;
  gap: clamp(16px, 4vw, 40px);
  align-items: flex-start;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
}
.steps__item:last-child { border-bottom: none; }
.steps__num {
  font-family: var(--num);
  font-weight: 500;
  font-size: clamp(2.6rem, 6vw, 3.8rem);
  line-height: 1;
  flex: 0 0 auto;
  min-width: 2em;
}
.steps__num--orange { color: var(--orange); }
.steps__num--teal { color: var(--teal); }
.steps__body h3 { font-family: var(--serif); font-weight: 600; font-size: 1.25rem; margin-bottom: 0.3em; }
.steps__body p { color: var(--ink); }

/* ---- S4 capacity ---- */
.capacity__lead { max-width: 36em; margin-bottom: 3rem; }
.capacity__blocks { max-width: 40em; margin-bottom: 1rem; }
.capacity__block {
  border-left: 3px solid var(--teal);
  padding: 0.25em 0 0.25em 1.25em;
  margin-bottom: 2rem;
}
.capacity__block h3 { font-family: var(--serif); font-weight: 600; font-size: 1.1875rem; margin-bottom: 0.2em; }
.capacity__trio {
  position: absolute;
  right: 0;
  top: 20%;
  display: flex;
  align-items: flex-start;
}
.capacity__trio .deco { width: clamp(64px, 7.5vw, 110px); height: auto; }
.capacity__trio .deco:nth-child(1) { transform: rotate(-4deg); }
.capacity__trio .deco:nth-child(2) { transform: translateY(24px); margin-left: -12px; }
.capacity__trio .deco:nth-child(3) { transform: translateY(48px) rotate(4deg); margin-left: -12px; }
.capacity__trio.reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.8s ease, transform 0.8s ease; }
.capacity__trio.reveal.inview { opacity: 1; transform: translateY(0); }
.concerns__fig { position: absolute; right: 2%; top: 26%; width: clamp(90px, 12vw, 170px); }
.lesson__fig { position: absolute; right: 1%; top: 38%; width: clamp(90px, 10vw, 160px); }
.price__fig { position: absolute; right: 0; top: 36%; width: clamp(150px, 17vw, 250px); }
.faq__fig { position: absolute; right: 1%; bottom: 8%; width: clamp(80px, 9vw, 140px); }

/* ---- S5 trainer ---- */
.trainer__grid { display: grid; gap: 40px; align-items: center; }
.trainer__text p { max-width: 32em; margin-bottom: 1.2em; }
.trainer__figure { justify-self: center; text-align: center; position: relative; padding: 32px 36px 20px; }
.trainer__figure::before {
  content: "";
  position: absolute;
  inset: 4% -7% 8% -9%;
  background: #EAE7DA;
  transform: rotate(-3deg);
}
.trainer__figure::after {
  content: "";
  position: absolute;
  top: 2%;
  left: -4px;
  width: 58px;
  height: 58px;
  background: url("../assets/scraps-a.webp") no-repeat center / contain;
  transform: rotate(8deg);
}
.trainer__img {
  position: relative;
  width: clamp(280px, 30vw, 400px);
  height: auto;
}
.trainer__caption { position: relative; margin-top: 0.6em; }
.trainer__caption-name { display: block; font-size: 0.9375rem; color: var(--ink); letter-spacing: 0.08em; }
.trainer__caption-en { font-family: var(--num); letter-spacing: 0.04em; }
.trainer__caption-note { display: block; font-size: 0.6875rem; color: var(--ink-soft); letter-spacing: 0.06em; margin-top: 0.35em; }

/* ---- S6 price ---- */
.price__lead { max-width: 36em; margin-bottom: 2.5rem; }
.price__label { font-family: var(--serif); font-size: 0.9375rem; letter-spacing: 0.14em; color: var(--ink-soft); }
.price__amount { margin-bottom: 2rem; }
.price__num { font-family: var(--num); font-weight: 500; font-size: clamp(3rem, 8vw, 4.5rem); letter-spacing: 0.02em; }
.price__unit { font-family: var(--serif); font-size: 1.5rem; margin-left: 0.15em; }
.price__table { width: 100%; max-width: 38em; border-collapse: collapse; }
.price__table th, .price__table td {
  text-align: left;
  padding: 14px 8px;
  border-bottom: 1px solid var(--line);
  font-weight: 400;
  vertical-align: top;
}
.price__table th { width: 8.5em; color: var(--ink-soft); letter-spacing: 0.08em; }
.price__note { max-width: 38em; margin-top: 1.25rem; font-size: 0.9375rem; }

/* ---- S7 caution ---- */
.caution { padding-top: 64px; padding-bottom: 64px; }
.caution__box {
  max-width: 40em;
  border: 1.5px solid var(--teal);
  padding: clamp(24px, 4vw, 40px);
}
.caution__title { font-family: var(--serif); font-weight: 600; font-size: 1.25rem; margin-bottom: 1em; }
.caution__list { list-style: none; margin-bottom: 1.25em; }
.caution__list li {
  padding: 0.4em 0 0.4em 1.6em;
  background-image: url("../assets/check-scrap.webp");
  background-repeat: no-repeat;
  background-position: 0 0.75em;
  background-size: 1em auto;
  filter: none;
}
.caution__note { font-size: 1rem; }

/* ---- S8 FAQ ---- */
.faq { padding-top: 64px; }
.faq__list { max-width: 42em; }
.faq__item { padding: 1.4rem 0; border-bottom: 1px solid var(--line); }
.faq__item:last-child { border-bottom: none; }
.faq__item dt {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.125rem;
  margin-bottom: 0.4em;
  display: flex;
  gap: 0.6em;
  align-items: baseline;
}
.faq__q { font-family: var(--num); font-weight: 500; font-size: 1.6rem; color: var(--orange); line-height: 1; }
.faq__item dd { padding-left: 2.1em; }

/* ---- S9 apply ---- */
.apply__grid { display: grid; gap: 40px; }
.apply__form-col { max-width: 36em; }
.form__group { border: none; margin-bottom: 2rem; }
.form__legend {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
  padding: 0;
}
.form__field { margin-bottom: 1.5rem; }
.form__field label, .form__field-label {
  display: block;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.35em;
}
.form__field input[type="text"], .form__field input[type="email"], .form__field input[type="tel"], .form__field textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--ink-soft);
  background: transparent;
  font-family: var(--sans);
  font-size: 1rem;
  padding: 0.5em 0.2em;
  border-radius: 0;
}
.form__field input:focus-visible, .form__field textarea:focus-visible, .form__check input:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}
.form__options { display: flex; flex-direction: column; gap: 0.5em; }
.form__options--grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(9em, 1fr)); gap: 0.5em 1em; }
.form__check { display: flex; align-items: baseline; gap: 0.6em; font-size: 1rem; }
.form__check input { width: 1.1em; height: 1.1em; accent-color: var(--orange); flex: 0 0 auto; transform: translateY(0.15em); }
.cta-wrap--form { margin-top: 2.5rem; }
.form__pending { margin-top: 1rem; font-size: 0.9375rem; color: var(--orange); }
.apply__fig { justify-self: end; align-self: end; width: clamp(120px, 16vw, 210px); }

/* ---- footer ---- */
.footer { padding: 40px 24px 56px; text-align: center; }
.footer__brand { font-size: 0.875rem; letter-spacing: 0.14em; color: var(--ink-soft); }

/* ---- floating CTA (mobile) ---- */
.floating-cta {
  position: fixed;
  left: 0; right: 0; bottom: 12px;
  display: none;
  justify-content: center;
  z-index: 50;
  padding: 0 16px;
}
.floating-cta__btn {
  background: var(--orange);
  color: var(--paper);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 12px 28px;
  border-radius: 9999px;
}
.floating-cta__btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }

/* ---- desktop ---- */
@media (min-width: 900px) {
  .sec { padding: 128px 48px; }
  .caution, .faq { padding-top: 80px; padding-bottom: 80px; }
  .hero { padding: 64px 48px 128px; }
  .hero__line--i1 { padding-left: 1em; }
  .hero__line--i2 { padding-left: 2em; }
  .capacity__block--i1 { margin-left: 3em; }
  .capacity__block--i2 { margin-left: 6em; }
  .trainer__grid { grid-template-columns: 1.4fr 1fr; }
  .apply__grid { grid-template-columns: 1fr auto; align-items: end; }
}

/* ---- mobile refinements ---- */
@media (max-width: 899px) {
  .hero { min-height: auto; }
  .hero__fig-stretch { top: 3%; right: 0; width: 108px; }
  .hero__fig-bend { display: none; }
  .concerns__fig, .lesson__fig, .price__fig, .faq__fig { display: none; }
  .capacity__trio { position: static; justify-content: center; margin: 1.5rem auto 0; }
  .capacity__trio .deco { width: 64px; }
  .capacity__trio .deco:nth-child(2) { transform: translateY(14px); }
  .capacity__trio .deco:nth-child(3) { transform: translateY(28px) rotate(4deg); }
  .apply__fig { display: none; }
  .floating-cta.is-visible { display: flex; }
}

.u-nowrap { white-space: nowrap; }

/* ---- mobile phrase break ---- */
.u-break-sp { display: inline; }
@media (max-width: 899px) {
  .u-break-sp { display: block; padding-left: 1em; }
}

/* ---- capture mode (?capture): static final state for screenshot tools ---- */
.capture .hero { min-height: auto; }
.capture .hero__line-inner { animation: none; transform: none; }
.capture .sweep { background: none !important; color: var(--ink) !important; animation: none !important; }
.capture .marker { background-size: 100% 100%; transition: none; }
.capture .reveal .deco--scrap, .capture .deco.reveal { opacity: 1; transform: none; transition: none; }
.capture .capacity__trio.reveal { opacity: 1; transform: none; transition: none; }

/* ---- reduced motion: everything readable immediately ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__line-inner { animation: none; transform: none; }
  .sweep { background: none !important; color: var(--ink) !important; animation: none !important; }
  .marker { background-size: 100% 100%; transition: none; }
  .reveal .deco--scrap, .deco.reveal { opacity: 1; transform: none; transition: none; }
  .capacity__trio.reveal { opacity: 1; transform: none; transition: none; }
}