:root {
  --color-primary:    #1b2a52;
  --color-accent:     #d4922a;
  --color-accent-dk:  #b87a20;
  --color-bg:         #f5f2ec;
  --color-alt-bg:     #edeae2;
  --color-surface:    #ffffff;
  --color-text:       #1c1c2e;
  --color-text-muted: #6b7280;
  --color-border:     #ddd9d0;
  --color-placeholder:#c5c1b8;
  --color-footer-bg:  #111827;

  --font-heading: 'Noto Serif JP', 'Noto Serif', Georgia, serif;
  --font-body:    'Noto Sans JP', 'Noto Sans', system-ui, sans-serif;

  --container-max:    1140px;
  --container-pad:    1.5rem;

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 4px rgba(27, 42, 82, 0.08);
  --shadow-md: 0 3px 12px rgba(27, 42, 82, 0.11);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: auto;
  background-color: var(--color-bg);
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: var(--font-body);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); font-weight: 700; }
h2 { font-size: clamp(1.45rem, 3.5vw, 2.1rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.45rem); font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; }

p {
  margin-bottom: 1rem;
  line-height: 1.75;
}
p:last-child { margin-bottom: 0; }

.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.section--alt {
  background-color: var(--color-alt-bg);
}

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

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section__title {
  margin-bottom: 1rem;
}

.section__desc {
  color: var(--color-text-muted);
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  font-size: 0.97rem;
  line-height: 1.8;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-family: var(--font-body);
  font-size: 0.93rem;
  font-weight: 700;
  border: 2px solid transparent;
  border-radius: var(--radius-xs);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
}

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

.btn--accent:hover {
  background-color: var(--color-accent-dk);
  border-color: var(--color-accent-dk);
}

.btn--ghost-light {
  background-color: transparent;
  color: rgba(255, 255, 255, 0.88);
  border-color: rgba(255, 255, 255, 0.38);
}

.btn--ghost-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.img-ph {
  background-color: var(--color-placeholder);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.img-ph svg {
  opacity: 0.45;
}

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1.125rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.site-header__logo-img {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.site-header__brand {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.site-header__brand-name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: 0;
}

.site-header__brand-sub {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  line-height: 1;
}

.hero {
  background-color: var(--color-primary);
  padding: 5.5rem 0 5rem;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.hero__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(212, 146, 42, 0.4);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
}

.hero__title {
  color: #ffffff;
  margin-bottom: 1.5rem;
  line-height: 1.25;
}

.hero__desc {
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.02rem;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__actions .btn {
  font-size: 0.97rem;
  padding: 0.875rem 2.25rem;
}

.hero__img-wrap {
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.intro__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  text-align: center;
  margin: 0 auto;
  max-width: 1100px;
}

.intro__img-wrap {
  height: 380px;
}

.intro__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.intro__title {
  margin-bottom: 1.25rem;
}

.intro__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}

.intro__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.stat-item {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
}

.stat-item__num {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-item__label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
  margin: 0 auto;
  max-width: 1100px;
}

.feat-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
}

.feat-card__icon {
  width: 54px;
  height: 54px;
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  flex-shrink: 0;
}

.feat-card__title {
  font-size: 0.97rem;
  margin-bottom: 0.6rem;
  color: var(--color-primary);
}

.feat-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

.languages__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin: 0 auto;
  max-width: 1100px;
}

.lang-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 0 auto;
  width: 100%;
}

.lang-card__img {
  height: 190px;
  border-radius: 0;
}

.lang-card__body {
  padding: 1.25rem;
  text-align: center;
}

.lang-card__region {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

.lang-card__name {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.lang-card__desc {
  font-size: 0.84rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin: 0 auto;
  max-width: 1100px;
}

.step-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.25rem 1.75rem;
  text-align: center;
}

.step-card__num {
  width: 60px;
  height: 60px;
  background-color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.step-card__title {
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

.step-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

.courses__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin: 0 auto;
  max-width: 1100px;
}

.course-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.course-card__img {
  height: 165px;
  border-radius: 0;
}

.course-card__body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.course-card__badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-xs);
  margin: 0 auto 0.875rem;
  width: fit-content;
}

.course-card__title {
  font-size: 1rem;
  margin-bottom: 0.55rem;
}

.course-card__desc {
  font-size: 0.83rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1rem;
}

.course-card__price {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
  line-height: 1;
}

.course-card__price small {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.course-card__btn {
  display: block;
  text-align: center;
  padding: 0.8rem 1rem;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: var(--radius-xs);
  text-decoration: none;
  border: none;
  width: 100%;
}

.course-card__btn:hover {
  background-color: var(--color-accent-dk);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 0 auto;
  max-width: 1100px;
}

.testi-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
}

.testi-card__mark {
  font-family: Georgia, serif;
  font-size: 3rem;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.testi-card__text {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.testi-card__author {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  justify-content: center;
}

.testi-card__avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--color-placeholder);
  flex-shrink: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.testi-card__meta {}

.testi-card__name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.15rem;
}

.testi-card__course {
  font-size: 0.76rem;
  color: var(--color-text-muted);
}

.faq__list {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-item__btn {
  width: 100%;
  background: none;
  border: none;
  padding: 1.5rem 0;
  text-align: left;
  font-family: var(--font-body);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
}

.faq-item__icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.faq-item__answer {
  display: none;
  padding-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.faq-item.is-open .faq-item__answer {
  display: block;
}

.faq-item.is-open .faq-item__icon {
  background-color: var(--color-accent);
}

.contacts {
  background-color: var(--color-primary);
}

.contacts .section__label {
  color: var(--color-accent);
}

.contacts .section__title {
  color: #ffffff;
}

.contacts .section__desc {
  color: rgba(255, 255, 255, 0.65);
}

.contacts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 0 auto;
  max-width: 1100px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.contact-item__icon {
  width: 60px;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item__label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

.contact-item__value {
  color: #ffffff;
  font-size: 0.95rem;
  line-height: 1.55;
}

.contact-item__value a {
  color: #ffffff;
  text-decoration: none;
}

.contact-item__value a:hover {
  text-decoration: underline;
}

.site-footer {
  background-color: var(--color-footer-bg);
  padding: 1.75rem 0;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer__copy {
  font-size: 0.83rem;
  color: rgba(255, 255, 255, 0.5);
}

.site-footer__nav {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
}

.site-footer__nav a {
  font-size: 0.83rem;
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
}

.site-footer__nav a:hover {
  color: rgba(255, 255, 255, 0.9);
}

#cookie-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-primary);
  border-top: 1px solid var(--color-border);
  padding: 1.5rem;
  z-index: 1000;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
}

@media (min-width: 768px) {
  #cookie-banner {
    flex-direction: row;
    align-items: center;
  }
}

.cookie-banner__content {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.88rem;
  line-height: 1.6;
  flex: 1;
}

.cookie-banner__content strong {
  color: #ffffff;
}

.cookie-banner__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.cookie-banner__btn-accept,
.cookie-banner__btn-reject,
.cookie-banner__btn-dismiss {
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.cookie-banner__btn-accept {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

.cookie-banner__btn-accept:hover {
  background-color: var(--color-accent-dk);
}

.cookie-banner__btn-reject,
.cookie-banner__btn-dismiss {
  background-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.cookie-banner__btn-reject:hover,
.cookie-banner__btn-dismiss:hover {
  background-color: rgba(255, 255, 255, 0.25);
}

@media (max-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .section {
    padding-top: 3.75rem;
    padding-bottom: 3.75rem;
  }

  .hero {
    padding: 3.75rem 0;
  }

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

  .hero__img-wrap {
    height: 240px;
  }

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

  .intro__img-wrap {
    height: 240px;
  }

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

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

  .steps {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

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

  .contacts__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  #cookie-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  :root {
    --container-pad: 1rem;
  }

  .section {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .features__grid,
  .languages__grid,
  .courses__grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

.lang-card img,
.course-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}