:root {
  --forest: #273f38;
  --forest-2: #365247;
  --sage: #7f9179;
  --sage-soft: #eef3ea;
  --terracotta: #b9654d;
  --terracotta-dark: #954b38;
  --gold: #d8ad54;
  --cream: #fff8ec;
  --paper: #fffdf7;
  --clay: #f4e4d8;
  --ink: #1f2925;
  --muted: #69756d;
  --line: #e5ddd2;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(48, 60, 54, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--cream);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.78;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  background-image:
    url("../img/note-motif.png"),
    url("../img/note-motif.png"),
    url("../img/note-motif.png"),
    url("../img/note-motif.png");
  background-repeat: no-repeat;
  background-size: 88px, 64px, 96px, 70px;
  background-position:
    8vw 28vh,
    86vw 36vh,
    14vw 76vh,
    78vw 88vh;
  opacity: 0.045;
}

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

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

.phrase {
  display: inline-block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 10px clamp(18px, 4vw, 56px);
  background: rgba(255, 253, 247, 0.94);
  border-bottom: 1px solid rgba(229, 221, 210, 0.9);
  backdrop-filter: blur(14px);
  transition: box-shadow 180ms ease;
}

.site-header.is-scrolled {
  box-shadow: 0 14px 34px rgba(48, 60, 54, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--forest);
  font-weight: 900;
  text-decoration: none;
}

.site-logo {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand span {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: 30px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 800;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--forest);
}

.nav-cta,
.primary-button,
.submit-button,
.mobile-fixed-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--terracotta), var(--terracotta-dark));
  color: var(--white);
  font-weight: 900;
  line-height: 1.2;
  text-decoration: none;
  box-shadow:
    0 5px 0 #7f3d2e,
    0 18px 34px rgba(149, 75, 56, 0.28);
  cursor: pointer;
  isolation: isolate;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.nav-cta:hover,
.primary-button:hover,
.submit-button:hover,
.mobile-fixed-cta:hover {
  transform: translateY(-2px);
  box-shadow:
    0 7px 0 #7f3d2e,
    0 24px 40px rgba(149, 75, 56, 0.32);
}

.nav-cta:active,
.primary-button:active,
.submit-button:active,
.mobile-fixed-cta:active {
  transform: translateY(3px);
  box-shadow:
    0 2px 0 #7f3d2e,
    0 12px 24px rgba(149, 75, 56, 0.24);
}

.nav-cta::after,
.primary-button::after,
.submit-button::after,
.mobile-fixed-cta::after {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: -1;
  border-radius: inherit;
  background: radial-gradient(circle, rgba(216, 173, 84, 0.78), transparent 68%);
  opacity: 0;
  transform: scale(0.96);
  animation: ctaGlow 15s ease-in-out infinite;
}

@keyframes ctaGlow {
  0%, 86%, 100% {
    opacity: 0;
    transform: scale(0.96);
    box-shadow: none;
  }
  90% {
    opacity: 0.85;
    transform: scale(1.04);
    box-shadow: 0 0 42px rgba(216, 173, 84, 0.72);
  }
  94% {
    opacity: 0.25;
    transform: scale(1.01);
  }
}

.nav-cta {
  padding: 12px 20px;
  font-size: 0.92rem;
}

.primary-button,
.submit-button {
  width: fit-content;
  padding: 15px 28px;
}

.hero {
  padding: clamp(34px, 5vw, 72px) clamp(18px, 5vw, 72px) clamp(58px, 8vw, 104px);
  background:
    linear-gradient(135deg, rgba(238, 243, 234, 0.8), transparent 42%),
    linear-gradient(180deg, var(--paper), var(--cream));
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 74px);
  max-width: 1200px;
  margin: 0 auto;
}

.hero-copy {
  min-width: 0;
}

.area-label,
.kicker {
  margin: 0 0 12px;
  color: var(--sage);
  font-weight: 900;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  color: var(--forest);
  font-size: clamp(3.25rem, 6.1vw, 5.25rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.value-label {
  display: block;
  width: fit-content;
  margin-bottom: 20px;
  padding: 8px 18px 9px;
  border: 1px solid rgba(216, 173, 84, 0.7);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 244, 204, 0.78));
  color: var(--forest);
  font-size: clamp(1.05rem, 1.8vw, 1.45rem);
  line-height: 1.1;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 10px 28px rgba(94, 75, 38, 0.12);
  letter-spacing: 0.06em;
}

.title-line {
  display: block;
  white-space: nowrap;
  overflow-wrap: normal;
}

h2 {
  margin: 0;
  color: var(--forest);
  font-size: clamp(2rem, 4.5vw, 3.7rem);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  color: var(--forest);
  font-size: 1.16rem;
  line-height: 1.45;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 570px;
  margin: 28px 0 0;
  color: #3d4a43;
  font-size: 1.04rem;
  font-weight: 800;
}

.hero .primary-button {
  margin-top: 30px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 30px;
}

.hero-facts div {
  padding: 14px 16px;
  border: 1px solid rgba(127, 145, 121, 0.3);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 34px rgba(48, 60, 54, 0.08);
}

.hero-facts span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

.hero-facts strong {
  display: block;
  color: var(--forest);
  font-size: 0.98rem;
  white-space: nowrap;
}

.hero-photo {
  position: relative;
  margin: 0;
  padding: 12px;
  border-radius: 24px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.hero-photo::before {
  content: "";
  position: absolute;
  right: -18px;
  bottom: -18px;
  width: 42%;
  height: 42%;
  border-radius: 999px;
  background: var(--clay);
  z-index: -1;
}

.hero-photo img {
  width: 100%;
  min-height: clamp(420px, 48vw, 590px);
  max-height: 620px;
  border-radius: 18px;
  object-fit: cover;
  object-position: center;
}

.section {
  padding: clamp(74px, 9vw, 118px) clamp(18px, 5vw, 72px);
}

.section-copy {
  max-width: 780px;
}

.section-copy p:not(.kicker),
.atmosphere-copy p:not(.kicker),
.price-copy p {
  color: #526058;
  font-size: 1.04rem;
}

.centered {
  margin: 0 auto 36px;
  text-align: center;
}

.no-break,
.pc-nowrap {
  white-space: nowrap;
}

.lesson-title span,
.voice-title-split span {
  display: inline;
}

.intro,
.reason-section,
.faq-section {
  background: var(--paper);
}

.lesson-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 1120px;
  margin: 42px auto 0;
}

.lesson-cards article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 18px 48px rgba(48, 60, 54, 0.08);
}

.lesson-cards img {
  width: 100%;
  aspect-ratio: 1 / 0.82;
  object-fit: cover;
}

.lesson-cards article > div {
  padding: 22px;
}

.card-number {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--terracotta);
  font-weight: 900;
}

.lesson-cards p,
.reason-list p,
.voice-list p,
.faq-list p {
  margin: 0;
  color: #526058;
}

.atmosphere {
  display: grid;
  grid-template-columns: minmax(280px, 0.86fr) minmax(0, 1.14fr);
  align-items: center;
  gap: clamp(28px, 5vw, 68px);
  padding: clamp(52px, 7vw, 90px) clamp(18px, 5vw, 72px);
  background: linear-gradient(135deg, var(--sage-soft), var(--cream));
}

.atmosphere-copy {
  max-width: 500px;
  justify-self: end;
}

.tool-photo {
  margin: 0;
  max-width: 720px;
}

.tool-photo img {
  width: 100%;
  min-height: 430px;
  border-radius: var(--radius);
  object-fit: cover;
  box-shadow: var(--shadow);
}

.price-section {
  background: var(--forest);
  color: var(--white);
}

.price-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
  align-items: center;
  gap: clamp(26px, 5vw, 70px);
  max-width: 1120px;
  margin: 0 auto;
}

.price-copy .kicker,
.price-copy h2 {
  color: var(--white);
}

.price-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.price-box {
  display: grid;
  gap: 18px;
  padding: clamp(28px, 4vw, 42px);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 12px 12px 0 var(--gold);
}

.price-box span {
  color: var(--terracotta);
  font-weight: 900;
}

.price-box strong {
  display: block;
  color: var(--forest);
  font-size: clamp(2.5rem, 6vw, 4.4rem);
  line-height: 1;
}

.price-box small {
  display: block;
  color: var(--muted);
  font-weight: 800;
}

.reason-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.reason-list article {
  position: relative;
  min-height: 210px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 14px 40px rgba(48, 60, 54, 0.06);
}

.reason-number {
  display: block;
  margin-bottom: 14px;
  color: var(--terracotta);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
}

.voices-section {
  background: var(--sage-soft);
}

.voice-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 1120px;
  margin: 0 auto;
}

.voice-list article {
  position: relative;
  padding: 30px 26px 28px;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.voice-list img {
  width: 118px;
  height: 118px;
  margin-bottom: 18px;
  border: 6px solid var(--paper);
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  box-shadow: 0 12px 32px rgba(48, 60, 54, 0.18);
}

.voice-role {
  color: var(--terracotta);
  font-size: 0.9rem;
  font-weight: 900;
}

.info-section {
  background: var(--cream);
}

.info-panel {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(26px, 5vw, 60px);
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.info-logo {
  width: 58px;
  height: 58px;
  margin-bottom: 18px;
  object-fit: contain;
}

dl {
  margin: 0;
}

dl div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

dl div:last-child {
  border-bottom: 0;
}

dt {
  color: var(--muted);
  font-weight: 900;
}

dd {
  margin: 0;
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 880px;
  margin: 0 auto;
}

details {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

summary {
  padding: 18px 20px;
  color: var(--forest);
  font-weight: 900;
  cursor: pointer;
}

details p {
  padding: 0 20px 18px;
}

.form-section {
  background: linear-gradient(160deg, var(--paper), var(--sage-soft));
}

.form-shell {
  display: grid;
  grid-template-columns: minmax(270px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(26px, 5vw, 58px);
  max-width: 1120px;
  margin: 0 auto;
}

.form-copy {
  position: sticky;
  top: 104px;
  align-self: start;
}

.form-copy p:not(.kicker) {
  color: #526058;
}

.form-title {
  font-size: clamp(1.85rem, 2.35vw, 2.45rem);
  line-height: 1.2;
}

.form-copy .form-title span {
  display: block;
  white-space: nowrap;
}

.entry-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.entry-form label {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.entry-form .full,
.submit-button,
.form-status {
  grid-column: 1 / -1;
}

.entry-form span {
  font-weight: 900;
}

.entry-form b,
.entry-form em {
  margin-left: 6px;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-style: normal;
}

.entry-form b {
  background: var(--terracotta);
  color: var(--white);
}

.entry-form em {
  background: var(--sage-soft);
  color: var(--forest);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #d8d0c6;
  border-radius: var(--radius);
  background: var(--white);
  padding: 12px 14px;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--terracotta);
  outline: 3px solid rgba(216, 173, 84, 0.35);
}

.submit-button {
  min-height: 58px;
  font-size: 1.05rem;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--forest);
  font-weight: 900;
}

.site-footer {
  padding: 38px clamp(20px, 5vw, 72px) 86px;
  background: var(--forest);
  color: var(--white);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 26px;
  max-width: 1120px;
  margin: 0 auto;
}

.footer-brand {
  color: var(--white);
}

address {
  color: rgba(255, 255, 255, 0.78);
  font-style: normal;
  text-align: right;
}

.mobile-fixed-cta {
  position: fixed;
  right: 14px;
  bottom: 14px;
  left: 14px;
  z-index: 60;
  display: none;
  min-height: 54px;
}

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .site-nav {
    display: none;
  }

  .hero-inner,
  .atmosphere,
  .price-layout,
  .info-panel,
  .form-shell {
    grid-template-columns: 1fr;
  }

  .hero-photo img {
    min-height: 420px;
  }

  .atmosphere-copy {
    max-width: 760px;
    justify-self: start;
  }

  .lesson-cards,
  .reason-list,
  .voice-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  html {
    scroll-padding-top: 72px;
  }

  body {
    padding-bottom: 72px;
  }

  .site-header {
    min-height: 64px;
    padding: 8px 14px;
  }

  .site-logo {
    width: 42px;
    height: 42px;
  }

  .brand span {
    font-size: 0.94rem;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding: 18px 18px 58px;
  }

  .hero-inner {
    gap: 28px;
  }

  .hero-photo {
    padding: 8px;
    border-radius: 18px;
  }

  .hero-photo::before {
    right: -8px;
    bottom: -8px;
  }

  .hero-photo img {
    min-height: 300px;
    border-radius: 14px;
    object-position: 58% center;
  }

  h1 {
    font-size: 3.65rem;
  }

  .value-label {
    margin-bottom: 14px;
    font-size: 1.2rem;
    box-shadow: 6px 6px 0 var(--clay);
  }

  h2 {
    font-size: 2rem;
  }

  .hero-lead {
    max-width: 340px;
    font-size: 1rem;
  }

  .primary-button,
  .submit-button {
    width: 100%;
  }

  .hero-facts {
    display: none;
  }

  .lesson-title span,
  .voice-title-split span {
    display: block;
  }

  .section {
    padding: 68px 18px;
  }

  .lesson-cards,
  .reason-list,
  .voice-list {
    grid-template-columns: 1fr;
  }

  .lesson-cards article > div,
  .reason-list article,
  .voice-list article {
    padding: 22px;
  }

  .atmosphere {
    padding: 62px 18px;
  }

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

  .tool-photo img {
    min-height: 260px;
  }

  .reason-list article {
    min-height: auto;
    padding: 18px;
    text-align: center;
  }

  .reason-number {
    margin-bottom: 8px;
    font-size: 1.45rem;
  }

  .voice-list article {
    text-align: center;
  }

  .voice-list img {
    margin-right: auto;
    margin-left: auto;
  }

  .form-copy {
    position: static;
    margin-bottom: 24px;
  }

  .form-shell {
    gap: 22px;
  }

  .price-box {
    box-shadow: 7px 7px 0 var(--gold);
  }

  dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .entry-form {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    display: grid;
  }

  address {
    text-align: left;
  }

  .mobile-fixed-cta {
    display: inline-flex;
  }
}