/* =============================================
   OTAMENG — style.css
   ============================================= */

/* ===== Google Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;0,700;1,400&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
  color: #3D3228;
  background: #FAF7F2;
  line-height: 1.7;
}

/* セリフ体：見出し・ロゴ・英字アクセントに使用 */
.logo,
.hero-name-en,
.section-title,
.banner-title,
.about-card-name,
.strength-title,
.service-title,
.positioning-title {
  font-family: 'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== Custom Properties ===== */
:root {
  --cyan:       #8FA68E;   /* sage green */
  --cyan-dark:  #6E8A7D;   /* deep sage */
  --navy:       #3D3228;   /* warm dark brown */
  --navy-light: #4E4038;   /* medium warm brown */
  --light:      #FAF7F2;   /* warm cream */
  --gray:       #9A8E84;   /* warm gray */
  --border:     #E5D9CE;   /* warm border */
  --shadow-sm:  0 2px 8px rgba(61,50,40,0.07);
  --shadow-md:  0 8px 32px rgba(61,50,40,0.13);
  --radius:     10px;
  --transition: 0.25s ease;
}

/* ===== Typography helpers ===== */
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
  line-height: 1.25;
  font-variant-numeric: lining-nums;
  font-feature-settings: "lnum" 1;
}
.section-sub {
  color: var(--gray);
  font-size: 1rem;
  margin-bottom: 52px;
  max-width: 640px;
  line-height: 1.8;
}

/* ===== Layout ===== */
.container { max-width: 1040px; margin: 0 auto; }
section { padding: 96px 40px; }

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block;
  background: var(--cyan);
  color: #fff;
  padding: 14px 36px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: var(--cyan-dark); transform: translateY(-2px); }

.btn-outline {
  display: inline-block;
  background: transparent;
  color: #fff;
  padding: 14px 36px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid rgba(255,255,255,0.4);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px); }

/* ===== Cyan divider ===== */
.cyan-bar {
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--navy) 100%);
}

/* =============================================
   HEADER
   ============================================= */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(61, 50, 40, 0.97);
  backdrop-filter: blur(10px);
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Nunito', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #fff;
}
.logo-text {
  letter-spacing: 0.08em;
}
.logo-text em {
  color: var(--cyan);
  font-style: normal;
}
.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

nav { display: flex; align-items: center; gap: 32px; }
nav a {
  color: rgba(255,255,255,0.75);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  transition: color var(--transition);
}
nav a:hover { color: var(--cyan); }

.nav-contact {
  background: var(--cyan) !important;
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 4px;
  font-weight: 700;
  transition: background var(--transition) !important;
}
.nav-contact:hover { background: var(--cyan-dark) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

/* =============================================
   HERO
   ============================================= */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 40px 60px;
  overflow: hidden;
}

/* Background image */
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('img/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.4) saturate(0.9);
  z-index: 0;
}
.hero-overlay { z-index: 2; }
.hero-inner { z-index: 3; }

/* Gradient overlay */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(61,50,40,0.80) 0%,
    rgba(143,166,142,0.22) 60%,
    rgba(61,50,40,0.65) 100%
  );
}

.hero-inner {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.hero-tag {
  display: inline-block;
  background: rgba(143,166,142,0.22);
  color: #C8D8C6;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid rgba(143,166,142,0.45);
  margin-bottom: 28px;
  text-transform: uppercase;
  backdrop-filter: blur(4px);
}

.hero-name-en {
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin-bottom: 8px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-name-jp {
  font-family: 'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
  font-size: clamp(2.0rem, 5.2vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.95), 0 6px 40px rgba(0,0,0,0.7);
}
.hero-name-sub {
  font-size: 0.5em;
  letter-spacing: 0.12em;
  vertical-align: middle;
}
.hero-title {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.72);
  max-width: 540px;
  margin-bottom: 40px;
  line-height: 1.9;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-chips {
  margin-top: 52px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tag-chip {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.65);
  padding: 6px 14px;
  border-radius: 3px;
  font-size: 0.78rem;
  border: 1px solid rgba(255,255,255,0.13);
  backdrop-filter: blur(4px);
}

/* Scroll indicator */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  animation: bounce 2s infinite;
}
.scroll-hint::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}


/* =============================================
   ABOUT
   ============================================= */
#about { background: #fff; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 64px;
  align-items: start;
}

/* Left: image + card */
.about-visual { display: flex; flex-direction: column; gap: 20px; }

.about-img-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 1/1;
  max-width: 280px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
  background: #F5EFE6;
}
.about-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s ease;
}
.about-img-wrap:hover img { transform: scale(1.04); }

.about-card {
  background: var(--light);
  border-radius: var(--radius);
  padding: 32px 28px;
  border-left: 4px solid var(--cyan);
}
.about-card-name {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 2px;
}
.about-card-en {
  font-size: 0.92rem;
  color: var(--gray);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}
.about-info-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
.about-info-row:last-child { border-bottom: none; }
.about-info-label {
  color: var(--cyan);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  min-width: 56px;
  padding-top: 2px;
}
.about-info-val { color: #4A5568; }

/* Badges */
.badge-group { margin-top: 4px; }
.badge-group-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.badge-group-label.cyan { color: var(--cyan); }
.badge-group-label.gray { color: var(--gray); }
.badges { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.badge {
  padding: 5px 14px;
  border-radius: 3px;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.badge.cyan { background: var(--cyan); color: #fff; }
.badge.navy { background: var(--navy); color: #fff; }

/* Right: text */
.about-text p {
  color: #4A5568;
  margin-bottom: 18px;
  font-size: 0.97rem;
  line-height: 1.9;
}

/* =============================================
   SERVICES
   ============================================= */
#services { background: var(--light); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.service-img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  display: block;
  transition: transform 0.5s ease;
  background: #F5F2EE;
}
.service-card:hover .service-img { transform: scale(1.03); }
.service-img-wrap { overflow: hidden; height: 200px; position: relative; background: #F5F2EE; }
.service-img-wrap::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.9));
}

.service-body { padding: 28px 28px 32px; }
.service-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 10px;
}
.service-desc {
  color: var(--gray);
  font-size: 0.87rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.service-list { list-style: none; }
.service-list li {
  font-size: 0.84rem;
  color: #4A5568;
  padding: 3px 0 3px 16px;
  position: relative;
}
.service-list li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-size: 0.55rem;
  top: 7px;
}

/* =============================================
   VISUAL BANNER
   ============================================= */
#banner {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 40px;
  overflow: hidden;
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-image: url('img/banner-bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  filter: brightness(0.3) saturate(0.7);
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(61,50,40,0.75), rgba(110,138,125,0.45));
}
.banner-inner { position: relative; max-width: 720px; }
.banner-label {
  display: inline-block;
  background: rgba(143,166,142,0.22);
  color: #C8D8C6;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid rgba(143,166,142,0.4);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.banner-title {
  font-size: clamp(1.05rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 20px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.3);
}
.banner-sub {
  font-size: clamp(0.78rem, 2.8vw, 1rem);
  color: rgba(255,255,255,0.72);
  line-height: 1.8;
  margin-bottom: 36px;
}

/* =============================================
   STRENGTHS
   ============================================= */
#strengths { background: #fff; }

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.strength-card {
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px;
  transition: border-color var(--transition), box-shadow var(--transition);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.strength-card:hover {
  border-color: var(--cyan);
  box-shadow: 0 4px 20px rgba(0,188,212,0.08);
}
.strength-num {
  font-size: 2rem;
  font-weight: 800;
  color: rgba(0,188,212,0.2);
  line-height: 1;
  flex-shrink: 0;
  width: 44px;
}
.strength-body {}
.strength-title {
  font-size: 0.97rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 8px;
}
.strength-desc {
  font-size: 0.86rem;
  color: var(--gray);
  line-height: 1.8;
}

/* Positioning box */
.positioning-box {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 52px 56px;
  display: flex;
  gap: 56px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.positioning-box::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(143,166,142,0.15), transparent 70%);
}
.positioning-left { flex: 1; }
.positioning-label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 12px;
  font-weight: 700;
}
.positioning-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.5;
}
.positioning-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pos-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.82);
  font-size: 0.9rem;
}
.pos-dot {
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  flex-shrink: 0;
}


/* =============================================
   CONTACT
   ============================================= */
#contact { background: #fff; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 24px;
}
.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.contact-icon {
  width: 42px; height: 42px;
  background: var(--light);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 2px;
}
.contact-val { font-size: 0.9rem; color: #4A5568; }

.contact-note {
  margin-top: 28px;
  padding: 20px;
  background: var(--light);
  border-radius: 6px;
  font-size: 0.84rem;
  color: var(--gray);
  line-height: 1.9;
  border-left: 3px solid var(--cyan);
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.06em;
}
.form-group input,
.form-group textarea,
.form-group select {
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  font-size: 0.9rem;
  color: #2D3748;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  background: #fff;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,188,212,0.1);
}
.form-group textarea { resize: vertical; min-height: 140px; }
.form-submit {
  background: var(--navy);
  color: #fff;
  border: none;
  padding: 14px 40px;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.06em;
  transition: background var(--transition), transform var(--transition);
  align-self: flex-start;
}
.form-submit:hover { background: var(--cyan); transform: translateY(-1px); }
.form-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.form-success {
  padding: 12px 16px;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 6px;
  font-size: 0.9rem;
  border-left: 4px solid #4caf50;
}
.form-error {
  padding: 12px 16px;
  background: #fdecea;
  color: #c62828;
  border-radius: 6px;
  font-size: 0.9rem;
  border-left: 4px solid #f44336;
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.5);
  text-align: center;
  padding: 40px;
  font-size: 0.84rem;
  line-height: 1.9;
}
footer strong { color: #fff; }
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}
.footer-links a {
  color: rgba(255,255,255,0.55);
  font-size: 0.82rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--cyan); }

/* =============================================
   SCROLL ANIMATIONS
   ============================================= */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   MOBILE NAV
   ============================================= */
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#mobile-nav {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: #3D3228;
  z-index: 99;
  padding: 20px 24px;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}
#mobile-nav.open { max-height: 300px; opacity: 1; pointer-events: auto; display: flex; }
#mobile-nav a {
  color: rgba(255,255,255,0.82);
  font-size: 1rem;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: color var(--transition);
}
#mobile-nav a:last-child { border-bottom: none; color: var(--cyan); font-weight: 700; }
#mobile-nav a:hover { color: var(--cyan); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  nav { display: none; }
  .hamburger { display: flex; }
  header { padding: 0 24px; }
  section { padding: 72px 24px; }
  #hero { padding: 100px 24px 72px; }
  #banner { padding: 72px 24px; background-attachment: scroll; }
  .banner-bg { background-attachment: scroll; }

  .about-grid     { grid-template-columns: 1fr; gap: 36px; }
  .services-grid  { grid-template-columns: 1fr; }
  .strengths-grid { grid-template-columns: 1fr; }
  .contact-grid   { grid-template-columns: 1fr; gap: 40px; }
  .form-row       { grid-template-columns: 1fr; }

  .positioning-box { flex-direction: column; gap: 28px; padding: 36px 28px; }
  .positioning-title { font-size: 1.05rem; }

  /* Mobile nav animation */
  #mobile-nav {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.35s ease, opacity 0.3s ease;
  }
  #mobile-nav.open {
    max-height: 300px;
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
}