/* ============================================
   海の翼株式会社 — 日系モダンスタイル
   ============================================ */

:root {
  --color-bg: #faf9f7;
  --color-bg-alt: #f0eeea;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #5c5c5c;
  --color-text-light: #8a8a8a;
  --color-accent: #1e3a5f;
  --color-accent-light: #2d5a87;
  --color-border: #e5e2dc;
  --color-hero-overlay: rgba(236, 246, 255, 0.45);

  --font-sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-serif: "Shippori Mincho", "Yu Mincho", serif;

  --header-height: 72px;
  --container-max: 1120px;
  --section-padding: clamp(4rem, 10vw, 7rem);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(30, 58, 95, 0.06);
}

.header:not(.header--scrolled) .logo__text {
  color: #ffffff;
  text-shadow: 0 1px 16px rgba(0, 0, 0, 0.35);
}

.header:not(.header--scrolled) .logo__mark {
  border-color: rgba(255, 255, 255, 0.9);
}

.header:not(.header--scrolled) .logo__mark::after {
  border-color: rgba(255, 255, 255, 0.9);
}

.header:not(.header--scrolled) .nav__link {
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.32);
}

.header:not(.header--scrolled) .nav__link::after {
  background: rgba(255, 255, 255, 0.85);
}

.header:not(.header--scrolled) .nav__link:hover {
  color: #ffffff;
}

.header:not(.header--scrolled) .nav-toggle span {
  background: #ffffff;
  box-shadow: 0 1px 8px rgba(30, 58, 95, 0.15);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(2rem, 5vw, 3rem);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.logo__mark {
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--color-accent);
  border-radius: 50%;
  position: relative;
}

.logo__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 6px;
  border-left: 1.5px solid var(--color-accent);
  border-bottom: 1.5px solid var(--color-accent);
  transform: translate(-30%, -70%) rotate(-45deg);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text);
  position: relative;
  padding: 0.35rem 0;
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav__link:hover {
  color: var(--color-accent);
}

.nav__link:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle--active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.nav-toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle--active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: calc(66vh + 75px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #eef6fc;
}

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 58%;
  filter: none;
  opacity: 1;
}

.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background: transparent;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: calc(var(--header-height) + 2rem) 1.5rem 4rem;
  color: rgba(255, 255, 255, 0.88);
  transform: translateY(18px);
}

.hero__label {
  font-size: 0.7rem;
  letter-spacing: 0.38em;
  font-weight: 500;
  opacity: 0.92;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.45);
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.125rem, 6.2vw, 3.375rem);
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.38;
  margin-bottom: 0.75rem;
  color: #ffffff;
  text-shadow:
    0 2px 22px rgba(0, 0, 0, 0.45),
    0 1px 4px rgba(30, 58, 95, 0.4),
    0 0 1px rgba(0, 0, 0, 0.25);
}

.hero__subtitle {
  font-size: clamp(0.95rem, 2.5vw, 1.0625rem);
  font-weight: 400;
  letter-spacing: 0.09em;
  line-height: 2;
  color: rgba(255, 255, 255, 0.97);
  margin-bottom: 2.75rem;
  text-shadow:
    0 1px 16px rgba(0, 0, 0, 0.4),
    0 0 28px rgba(30, 58, 95, 0.14);
}

.hero__br {
  display: none;
}

.hero__cta {
  display: inline-block;
  padding: 0.9rem 2.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.hero__cta:hover {
  background: rgba(255, 255, 255, 0.28);
  border-color: #ffffff;
  box-shadow: 0 4px 24px rgba(30, 58, 95, 0.12);
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.3);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.15));
  animation: scrollPulse 2.5s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ---- Sections ---- */
.section {
  padding: var(--section-padding) 0;
}

.section__header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section__header--center {
  text-align: center;
}

.section__label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--color-accent-light);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-text);
}

.section__desc {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- About（企業紹介・文化感のある静かな視覚） ---- */
.about {
  background: #ffffff;
  padding: clamp(5.5rem, 12vw, 8.5rem) 0 clamp(6rem, 13vw, 9rem);
}

.about__container {
  max-width: 1120px;
  padding-left: clamp(1.5rem, 5vw, 3.5rem);
  padding-right: clamp(1.5rem, 5vw, 3.5rem);
}

.about__body {
  display: grid;
  grid-template-columns: 48fr 52fr;
  gap: clamp(3rem, 6.5vw, 5.5rem);
  align-items: center;
}

.about__visual {
  margin: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 380px;
  overflow: hidden;
  position: relative;
  border-radius: 16px;
}

.about__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 55% 42%;
  display: block;
}

.about__panel {
  min-width: 0;
  padding: 0.25rem 0 0.25rem clamp(0.5rem, 2vw, 1.5rem);
}

.about__panel-head {
  margin-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
}

.about__label {
  display: block;
  font-size: 0.625rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  font-weight: 500;
  margin-bottom: 1rem;
}

.about__title {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  line-height: 1.45;
}

.about__lead {
  font-size: clamp(0.875rem, 1.6vw, 0.9375rem);
  font-weight: 400;
  line-height: 2.25;
  color: #4a5568;
  letter-spacing: 0.06em;
  margin: 0 0 clamp(2.5rem, 4.5vw, 3.25rem);
}

.about__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.375rem;
}

.about__fact {
  display: grid;
  grid-template-columns: 4.25rem 1fr;
  gap: 1.25rem;
  align-items: baseline;
}

.about__fact-label {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: #94a3b8;
}

.about__fact-value {
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--color-text);
  line-height: 1.6;
}

/* ---- Services ---- */
.services {
  background: var(--color-bg);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
  max-width: 980px;
  margin: 0 auto;
}

.service-card {
  background: var(--color-surface);
  padding: 1.5rem 2.5rem 2rem;
  min-height: 170px;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(30, 58, 95, 0.08);
}

.service-card__num {
  display: none;
}

.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
  text-align: center;
}

.service-card__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  text-align: left;
}

/* ---- Contact ---- */
.contact {
  background: var(--color-surface);
}

.contact__wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact__intro {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  grid-column: 1;
}

.contact__form {
  grid-column: 1;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  letter-spacing: 0.04em;
}

.required {
  font-size: 0.7rem;
  color: var(--color-accent-light);
  margin-left: 0.25rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-light);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-submit {
  display: inline-block;
  padding: 1rem 3rem;
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: #fff;
  background: var(--color-accent);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-submit:hover {
  background: var(--color-accent-light);
}

.contact__info {
  grid-column: 2;
  grid-row: 1 / span 3;
  padding: 2rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.contact__info-block {
  margin-bottom: 4rem;
}

.contact__info-block:last-child {
  margin-bottom: 0;
}

.contact__info-block h3 {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.contact__info-block p,
.contact__info-block a {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.8;
}

.contact__info-block a:hover {
  color: var(--color-accent);
}

.contact__phone {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.contact__hours {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 3.6rem;
}

/* ---- Footer ---- */
.footer {
  background: var(--color-accent);
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 2rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 2rem 3rem;
  align-items: start;
}

.footer__logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: #fff;
  display: block;
  margin-bottom: 0.5rem;
}

.footer__tagline {
  font-size: 0.8rem;
  opacity: 0.7;
  letter-spacing: 0.04em;
}

.footer__nav {
  display: flex;
  gap: 2rem;
  font-size: 0.85rem;
}

.footer__nav a:hover {
  color: #fff;
  opacity: 1;
}

.footer__copy {
  grid-column: 1 / -1;
  font-size: 0.75rem;
  opacity: 0.5;
  letter-spacing: 0.04em;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 1rem 2rem;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  opacity: 0;
  visibility: hidden;
  transition: transform 0.4s ease, opacity 0.4s ease, visibility 0.4s;
  z-index: 2000;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.toast--visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

/* ---- Fade-in animation ---- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .about__container {
    padding-left: clamp(1.25rem, 4vw, 2rem);
    padding-right: clamp(1.25rem, 4vw, 2rem);
  }

  .about__body {
    grid-template-columns: 1fr;
    gap: clamp(2.5rem, 6vw, 3.5rem);
  }

  .about__visual {
    order: 1;
    max-height: none;
    width: 100%;
  }

  .about__panel {
    order: 2;
    padding: 0;
  }

  .about__fact {
    grid-template-columns: 4rem 1fr;
  }

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

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

  .contact__info {
    grid-column: 1;
    grid-row: auto;
  }

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

  .footer__nav {
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(250, 249, 247, 0.98);
    backdrop-filter: blur(12px);
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

  .nav--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
  }

  .nav__link {
    font-size: 1.0625rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    padding: 0.5rem 0;
  }

  .hero__br {
    display: inline;
  }

  .about__fact {
    grid-template-columns: 3.75rem 1fr;
    gap: 1rem;
  }

  .about__fact-value {
    font-size: 0.8125rem;
  }
}

@media (max-width: 480px) {
  :root {
    --header-height: 64px;
  }

  .hero__scroll {
    display: none;
  }
}


/* ---- Logo image replacement ---- */
.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 0;
  line-height: 0;
}

.logo__image {
  display: block;
  height: 58px;
  width: auto;
  max-width: 260px;
  object-fit: contain;
  filter: drop-shadow(0 1px 10px rgba(0, 0, 0, 0.16));
}

.header--scrolled .logo__image {
  filter: none;
}

@media (max-width: 768px) {
  .logo__image {
    height: 46px;
    max-width: 210px;
  }
}

@media (max-width: 480px) {
  .logo__image {
    height: 40px;
    max-width: 180px;
  }
}


/* ---- Header readability refinements ---- */
.header:not(.header--scrolled) {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.06));
  box-shadow: none;
}

.header--scrolled .nav__link {
  color: var(--color-text);
  font-weight: 500;
}

.header--scrolled .nav__link:hover {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
}

.nav__list {
  gap: 3rem;
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.header:not(.header--scrolled) .nav__link {
  color: #ffffff;
  font-weight: 600;
  text-shadow:
    0 2px 10px rgba(18, 47, 72, 0.55),
    0 0 1px rgba(0, 0, 0, 0.38);
}

.header:not(.header--scrolled) .nav__link::after {
  background: #ffffff;
  height: 1.5px;
}

.logo__image {
  height: 60px;
  filter:
    drop-shadow(0 2px 8px rgba(18, 47, 72, 0.24))
    drop-shadow(0 0 2px rgba(255, 255, 255, 0.45));
}

.header--scrolled .logo__image {
  height: 54px;
  filter: drop-shadow(0 1px 4px rgba(18, 47, 72, 0.1));
}

@media (max-width: 768px) {
  .logo__image {
    height: 48px;
    max-width: 220px;
  }
}

@media (max-width: 480px) {
  .logo__image {
    height: 42px;
    max-width: 185px;
  }
}


/* ---- Final hero and philosophy refinements ---- */
.hero__title {
  margin-bottom: 1.2rem;
  text-shadow:
    0 3px 28px rgba(0, 0, 0, 0.55),
    0 1px 6px rgba(0, 0, 0, 0.45);
}

.hero__subtitle {
  text-shadow:
    0 2px 18px rgba(0, 0, 0, 0.46),
    0 0 28px rgba(30, 58, 95, 0.18);
}

.philosophy {
  position: relative;
  background:
    linear-gradient(180deg, #ffffff 0%, #fbf9f6 100%);
  padding: clamp(5rem, 11vw, 8rem) 0;
  overflow: hidden;
}

.philosophy::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: min(74vw, 760px);
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(183, 121, 93, 0.38), transparent);
}

.philosophy__container {
  max-width: 860px;
}

.philosophy__head {
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
}

.philosophy__content {
  text-align: center;
  color: #31485d;
}

.philosophy__line {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 3.6vw, 2rem);
  letter-spacing: 0.14em;
  line-height: 1.9;
  color: var(--color-accent);
}

.philosophy__line + .philosophy__line {
  margin-top: 0.35rem;
}

.philosophy__text {
  max-width: 680px;
  margin: clamp(2rem, 4vw, 2.75rem) auto 0;
  font-size: clamp(0.92rem, 1.8vw, 1rem);
  line-height: 2.35;
  letter-spacing: 0.08em;
  color: #4a5568;
}

.philosophy__text + .philosophy__text {
  margin-top: 1.2rem;
}

@media (max-width: 768px) {
  .header__inner {
    padding: 0 1.25rem;
  }

  .philosophy__line {
    letter-spacing: 0.08em;
  }

  .philosophy__text {
    text-align: left;
    letter-spacing: 0.04em;
  }
}

/* ---- Service detail link ---- */
.detail-link {
  display: block;
  margin-top: 1.15rem;
  text-align: right;
  color: #8b6f47;
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.09em;
  transition: color var(--transition), transform var(--transition);
}

.detail-link:hover {
  color: #b08a5b;
  transform: translateX(5px);
}

/* ---- Detail pages ---- */
.subpage {
  background: #f7f5f0;
}

.subpage-hero {
  padding: calc(var(--header-height) + 5rem) 1.5rem 5rem;
  text-align: center;
  background: linear-gradient(180deg, #ffffff 0%, #f3efe6 100%);
}

.subpage-hero__label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--color-accent-light);
  text-transform: uppercase;
}

.subpage-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.subpage-hero__lead {
  max-width: 720px;
  margin: 1.5rem auto 0;
  color: #4a5568;
  line-height: 2.1;
  letter-spacing: 0.05em;
}

.subpage-section {
  padding: clamp(4rem, 8vw, 6rem) 0;
}

.subpage-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.subpage-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 2rem;
  box-shadow: 0 12px 36px rgba(30, 58, 95, 0.05);
}

.subpage-card h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.08em;
}

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

/* ---- English Education: Premium Course Cards ---- */
.subpage-section--courses .course-section__header {
  margin-bottom: clamp(4rem, 8vw, 6.5rem);
}

.course-section__label {
  display: block;
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: clamp(1.125rem, 2.2vw, 1.5rem);
  padding-left: 0.4em;
  opacity: 0.9;
}

.course-section__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 2.625rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.35;
  color: var(--color-accent);
}

.course-section__lead {
  margin-top: clamp(1.875rem, 3.5vw, 2.5rem);
  font-size: 0.8125rem;
  font-weight: 300;
  line-height: 2.1;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.75rem, 3.5vw, 2.5rem);
  max-width: 960px;
  margin: 0 auto;
}

.course-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 260px;
  padding: clamp(2.5rem, 4.5vw, 3.25rem) clamp(2.25rem, 4vw, 3rem);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow:
    0 4px 24px rgba(30, 58, 95, 0.04),
    0 1px 3px rgba(30, 58, 95, 0.03);
  transition:
    transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.4s ease;
  overflow: hidden;
}

.course-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(2.25rem, 4vw, 3rem);
  width: 2.5rem;
  height: 2px;
  background: var(--color-accent);
  opacity: 0.4;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
}

.course-card:hover {
  transform: translateY(-6px);
  border-color: rgba(30, 58, 95, 0.14);
  box-shadow:
    0 20px 52px rgba(30, 58, 95, 0.09),
    0 6px 16px rgba(30, 58, 95, 0.04);
}

.course-card:hover::before {
  width: 3.5rem;
  opacity: 0.65;
}

.course-card__header {
  margin-bottom: 0;
}

.course-card__title {
  font-family: var(--font-serif);
  font-size: clamp(1.125rem, 2.2vw, 1.375rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.55;
  color: var(--color-accent);
}

.course-card__subtitle {
  margin-top: 0.625rem;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: var(--color-accent-light);
}

.course-card__divider {
  border: none;
  height: 1px;
  margin: clamp(1.125rem, 2vw, 1.375rem) 0 clamp(1.25rem, 2.5vw, 1.625rem);
  background: linear-gradient(
    90deg,
    rgba(30, 58, 95, 0.18) 0%,
    var(--color-border) 45%,
    rgba(229, 226, 220, 0.2) 100%
  );
}

.course-card__points {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
}

.course-card__points li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.875rem;
  line-height: 1.85;
  letter-spacing: 0.05em;
}

.course-card__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 4px;
  height: 1px;
  background: var(--color-accent-light);
  opacity: 0.55;
}

.course-card__points li:first-child {
  font-weight: 500;
  color: var(--color-text);
}

.course-card__points li:last-child {
  font-weight: 300;
  color: var(--color-text-muted);
}

.subpage-message {
  background: #fff;
  text-align: center;
}

.back-link {
  display: inline-block;
  margin-top: 2rem;
  color: #8b6f47;
  border-bottom: 1px solid #8b6f47;
  padding-bottom: 0.25rem;
  letter-spacing: 0.08em;
}

@media (max-width: 900px) {
  .services__grid--four,
  .subpage-card-grid,
  .course-grid {
    grid-template-columns: 1fr;
  }

  .services__grid--four .service-card {
    min-height: auto;
  }

  .service-card__body {
    min-height: auto;
  }

  .course-grid {
    max-width: 520px;
  }

  .course-card {
    min-height: auto;
  }
}


/* ---- Final adjustment: compact subpage contact ---- */
.subpage-message {
  padding: 2.5rem 0 3rem;
}

.subpage-card p {
  line-height: 1.9;
}