/* ============================================
   ENZŌ Life - Global Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-beige: #ECE3D5;
  --color-beige-light: #F2ECE0;
  --color-beige-dark: #DDD0BC;
  --color-turquoise: #8FBCBB;
  --color-turquoise-light: #B8D8D8;
  --color-black: #1A1A1A;
  --color-black-light: #3A3A3A;
  --color-white: #FFFFFF;
  --color-gray: #9A9A9A;
  --color-gray-light: #D4D4D4;

  /* Typography */
  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-sans: 'Inter', 'Noto Sans JP', sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 10rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 96px;

  /* Transitions */
  --transition-base: 0.3s ease;
  --transition-slow: 0.6s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-black);
  background-color: var(--color-beige-light);
  line-height: 1.8;
  letter-spacing: 0.02em;
}

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

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

a:hover {
  opacity: 0.7;
}

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* --- Utility --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Typography --- */
.heading-xl {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  line-height: 1.3;
}

.heading-lg {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 1.4;
}

.heading-md {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.5;
}

.heading-sm {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.text-body {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-black-light);
}

.text-small {
  font-size: 0.8rem;
  color: var(--color-gray);
  letter-spacing: 0.05em;
}

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

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(242, 236, 224, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: background-color var(--transition-base);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.header__logo {
  display: inline-flex;
  align-items: center;
  height: 100%;
}

.header__logo img {
  height: 48px;
  width: auto;
  display: block;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header__nav-link {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-black-light);
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-black);
  transition: width var(--transition-base);
}

.header__nav-link:hover {
  opacity: 1;
}

.header__nav-link:hover::after {
  width: 100%;
}

/* Hamburger Menu */
.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  padding: 4px 0;
}

.header__hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-black);
  transition: var(--transition-base);
}

.header__hamburger.is-active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.header__hamburger.is-active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation Overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-beige-light);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.mobile-nav.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav__link {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-black);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  width: 100%;
  padding-top: calc(var(--header-height) + var(--space-md));
  background-color: var(--color-beige-light);
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: var(--space-lg);
  align-items: center;
  min-height: calc(100vh - var(--header-height) - var(--space-2xl));
}

.hero__text {
  padding: var(--space-xl) 0 var(--space-lg);
  max-width: 520px;
}

.hero__catch {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: var(--color-black);
  margin-bottom: var(--space-md);
}

.hero__lead {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 1.1vw, 1.05rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 2.2;
  color: var(--color-black-light);
  margin-bottom: var(--space-lg);
}

.hero__divider {
  display: block;
  width: 60px;
  height: 1px;
  background-color: var(--color-black-light);
  margin-top: var(--space-md);
}

.hero__visual {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 480px;
  overflow: hidden;
}

.hero__image {
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
  object-position: center;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.4) 12%, #000 32%, #000 100%);
  mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.4) 12%, #000 32%, #000 100%);
}

/* --- Section Common --- */
.section {
  padding: var(--space-2xl) 0;
}

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

.section__label {
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-black-light);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 3.8vw, 3rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-black);
  margin-bottom: var(--space-lg);
}

.section__divider {
  width: 40px;
  height: 1px;
  background-color: var(--color-turquoise);
  margin: 0 auto var(--space-lg);
}

/* --- About Section (Top Page) --- */
.about {
  text-align: center;
}

.about__lead {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 300;
  line-height: 2.2;
  color: var(--color-black-light);
  max-width: 700px;
  margin: 0 auto var(--space-lg);
}

/* --- Services Section --- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.service-card {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  border-left: 1px solid var(--color-beige-dark);
}

.service-card:first-child {
  border-left: none;
}

.service-card__title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.3rem, 1.7vw, 1.55rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--color-black);
  margin-bottom: var(--space-md);
}

.service-card__icon {
  width: 44px;
  height: 44px;
  margin: 0 auto var(--space-md);
  color: #C9A961;
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.service-card__text {
  font-size: 0.95rem;
  line-height: 2;
  letter-spacing: 0.05em;
  color: var(--color-black-light);
}

/* --- Consulting Section --- */
.consulting {
  position: relative;
  padding: var(--space-2xl) 0;
  overflow: hidden;
}

.consulting__bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-image: url('../images/consulting-olive.jpg');
  background-size: cover;
  background-position: center;
  z-index: 0;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.4) 15%, #000 38%, #000 100%);
  mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.4) 15%, #000 38%, #000 100%);
}

.consulting__inner {
  position: relative;
  z-index: 1;
}

.consulting__text {
  max-width: 540px;
}

.consulting__title {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1.6vw, 1.4rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--color-black);
  margin: var(--space-sm) 0 var(--space-md);
}

/* 見出し内に ENZŌ ロゴ（筆記体画像）をインライン表示 */
.logo-inline {
  height: 0.95em;
  width: auto;
  display: inline-block;
  vertical-align: -0.07em;
  margin-right: 0.18em;
}

.consulting__subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  font-weight: 300;
  letter-spacing: 0.06em;
  line-height: 1.55;
  color: var(--color-black);
  margin-bottom: var(--space-lg);
}

.consulting__body p {
  font-size: 0.95rem;
  line-height: 2.1;
  letter-spacing: 0.05em;
  color: var(--color-black-light);
  margin-bottom: var(--space-md);
}

.consulting__body p:last-child {
  margin-bottom: 0;
}

/* --- CTA Section --- */
.cta {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.cta__sublabel {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-black-light);
  margin-bottom: var(--space-sm);
}

.cta__text {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--color-black-light);
  margin-bottom: var(--space-lg);
  line-height: 2.1;
}

/* --- Brand Band --- */
.brand-band {
  background-color: var(--color-beige);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-beige-dark);
  border-bottom: 1px solid var(--color-beige-dark);
}

.brand-band__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.brand-band__logo {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.brand-band__name-img {
  height: 56px;
  width: auto;
  display: block;
  margin-bottom: 0.4rem;
}

.brand-band__sub {
  font-family: var(--font-serif);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--color-black-light);
}

.brand-band__tagline {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 1.3vw, 1.1rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--color-black);
  padding-left: var(--space-lg);
  border-left: 1px solid var(--color-beige-dark);
}

.btn {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 1rem 3rem;
  border: 1px solid var(--color-black);
  color: var(--color-black);
  background-color: transparent;
  transition: all var(--transition-base);
}

.btn:hover {
  background-color: var(--color-black);
  color: var(--color-white);
  opacity: 1;
}

.btn--filled {
  background-color: var(--color-black);
  color: var(--color-white);
}

.btn--filled:hover {
  background-color: transparent;
  color: var(--color-black);
}

/* --- Footer --- */
.footer {
  background-color: var(--color-beige);
  padding: var(--space-xl) 0 var(--space-md);
  border-top: 1px solid var(--color-beige-dark);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  text-align: center;
}

.footer__logo-img {
  height: 50px;
  width: auto;
  display: block;
  margin: 0 auto var(--space-md);
}

.footer__nav {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer__nav-link {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.footer__info {
  margin-bottom: var(--space-lg);
}

.footer__info p {
  font-size: 0.8rem;
  color: var(--color-gray);
  line-height: 2;
}

.footer__copyright {
  font-size: 0.7rem;
  color: var(--color-gray-light);
  letter-spacing: 0.05em;
}

/* --- Form Styles --- */
.form__group {
  margin-bottom: var(--space-md);
}

.form__label {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--color-black-light);
  margin-bottom: var(--space-xs);
}

.form__label .required {
  color: var(--color-turquoise);
  font-size: 0.75rem;
  margin-left: 0.3rem;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-black);
  background-color: var(--color-white);
  border: 1px solid var(--color-beige-dark);
  transition: border-color var(--transition-base);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-turquoise);
}

.form__textarea {
  min-height: 180px;
  resize: vertical;
}

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Page Header (subpages) --- */
.page-header {
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  text-align: center;
  background-color: var(--color-beige);
}

/* --- Responsive: Tablet --- */
@media (max-width: 1024px) {
  .header__nav {
    gap: var(--space-md);
  }

  .services__grid {
    gap: var(--space-md);
  }

  .section {
    padding: var(--space-xl) 0;
  }

  .consulting__bg {
    width: 40%;
  }
}

/* --- Responsive: Mobile --- */
@media (max-width: 768px) {
  :root {
    --header-height: 72px;
  }

  .header__nav {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    min-height: auto;
  }

  .hero__text {
    padding: var(--space-lg) 0 0;
    max-width: 100%;
  }

  .hero__visual {
    min-height: 320px;
  }

  .hero__image {
    min-height: 320px;
  }

  .hero__lead {
    line-height: 2;
  }

  .section {
    padding: var(--space-xl) 0;
  }

  .services__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .service-card {
    border-left: none;
    border-top: 1px solid var(--color-beige-dark);
    padding: var(--space-lg) var(--space-sm);
  }

  .service-card:first-child {
    border-top: none;
  }

  .consulting__bg {
    width: 100%;
    opacity: 0.18;
  }

  .consulting__text {
    max-width: 100%;
    background-color: rgba(242, 236, 224, 0.88);
    padding: var(--space-md) var(--space-sm);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 2px;
  }

  .brand-band__inner {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .brand-band__tagline {
    padding-left: 0;
    border-left: none;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-beige-dark);
    width: 100%;
  }

  .footer__nav {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .header__logo img {
    height: 36px;
  }

  .brand-band__name-img {
    height: 42px;
  }

  .footer__logo-img {
    height: 40px;
  }

  .btn {
    padding: 0.8rem 2.5rem;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .hero__catch {
    letter-spacing: 0.06em;
  }

  .container {
    padding: 0 var(--space-sm);
  }
}