/* ========================================
   CLEAR LAB — style.css
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
  --gold:        #b8944a;
  --gold-light:  #d4b07a;
  --gold-pale:   #f0e4cc;
  --cream:       #faf8f5;
  --cream-mid:   #f2ede6;
  --dark:        #1a1410;
  --dark-mid:    #2c2418;
  --text:        #2c2418;
  --text-mid:    #6b5d4a;
  --text-light:  #a08060;
  --border:      #e5ddd0;
  --white:       #ffffff;
  --radius:      4px;
  --shadow:      0 8px 40px rgba(44,36,24,.10);
  --transition:  .35s cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.8;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---------- Typography ---------- */
h1,h2,h3,h4 { font-family: 'Cormorant Garamond', 'Noto Serif JP', serif; font-weight: 400; line-height: 1.3; }

/* ---------- Utilities ---------- */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.mt-2 { margin-top: 2rem; }

/* ========================================
   NAVBAR
   ======================================== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  padding: 20px 0;
  transition: var(--transition);
}
#navbar.scrolled {
  background: rgba(250,248,245,.96);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 2px 24px rgba(44,36,24,.08);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; flex-direction: column; line-height: 1.1;
}
.logo-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem; font-weight: 600; letter-spacing: .15em;
  color: var(--dark);
}
.logo-ja {
  font-size: .6rem; letter-spacing: .12em; color: var(--gold);
}
.nav-links {
  display: flex; align-items: center; gap: 2rem; list-style: none;
}
.nav-links a {
  font-size: .75rem; letter-spacing: .1em; color: var(--text);
  transition: color var(--transition);
  position: relative;
}
.nav-links a:not(.nav-book)::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--gold);
  transform: scaleX(0); transition: transform var(--transition);
}
.nav-links a:not(.nav-book):hover { color: var(--gold); }
.nav-links a:not(.nav-book):hover::after { transform: scaleX(1); }
.nav-book {
  padding: 8px 20px;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  letter-spacing: .1em; font-size: .75rem;
  transition: var(--transition);
}
.nav-book:hover { background: var(--gold); color: var(--white) !important; }
.hamburger {
  display: none; flex-direction: column; gap: 5px; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 1.5px;
  background: var(--dark); transition: var(--transition);
}

/* ========================================
   HERO
   ======================================== */
#hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1a1410 0%, #2c2418 40%, #3d3020 70%, #1a1410 100%);
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(184,148,74,.18) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(212,176,122,.10) 0%, transparent 50%);
}
.hero-overlay {
  position: absolute; inset: 0;
  background: url('../img/hero-bg.jpg') center/cover no-repeat;
  opacity: .12;
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center; padding: 0 24px;
}
.hero-eyebrow {
  font-size: .75rem; letter-spacing: .25em;
  color: var(--gold-light); margin-bottom: 1.5rem;
}
h1 .h1-en {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 300; letter-spacing: .2em;
  color: var(--white); line-height: 1;
  margin-bottom: .5rem;
}
h1 .h1-ja {
  display: block;
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 300; letter-spacing: .1em;
  color: var(--gold-pale); margin-top: 1rem;
}
.hero-sub {
  font-size: clamp(.85rem, 2vw, 1rem);
  color: rgba(255,255,255,.65);
  letter-spacing: .08em; margin: 1.8rem 0 2.8rem;
  line-height: 2;
}
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,.4); font-size: .6rem; letter-spacing: .2em;
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:.4} 50%{opacity:1} }

/* ========================================
   BUTTONS
   ======================================== */
.btn-gold {
  display: inline-block;
  padding: 14px 36px;
  background: var(--gold);
  color: var(--white);
  font-size: .8rem; letter-spacing: .15em;
  border: 1px solid var(--gold);
  transition: var(--transition);
}
.btn-gold:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(184,148,74,.3);
}
.btn-outline {
  display: inline-block;
  padding: 14px 36px;
  border: 1px solid rgba(255,255,255,.4);
  color: rgba(255,255,255,.8);
  font-size: .8rem; letter-spacing: .15em;
  transition: var(--transition);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.btn-full { width: 100%; text-align: center; padding: 16px; }

/* ========================================
   SECTIONS
   ======================================== */
.section { padding: 100px 0; }
.section-dark {
  background: var(--dark-mid);
}
.section-cream { background: var(--cream-mid); }

.section-label {
  font-size: .65rem; letter-spacing: .3em;
  color: var(--gold); margin-bottom: 1rem;
}
.section-label.light { color: var(--gold-light); }

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--dark); margin-bottom: 1.5rem;
}
.section-title.light { color: var(--white); }
.section-title small { font-size: .55em; color: var(--text-mid); display: block; margin-top: .4rem; }

.section-sub { color: var(--text-mid); max-width: 600px; }
.section-sub.light { color: rgba(255,255,255,.65); }

/* ========================================
   CONCEPT
   ======================================== */
.concept-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; margin-top: 3rem;
}
.concept-card {
  padding: 2.5rem 2rem;
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.concept-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--gold-pale) 0%, transparent 100%);
  opacity: 0; transition: opacity var(--transition);
}
.concept-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.concept-card:hover::before { opacity: 1; }
.concept-icon { font-size: 1.4rem; color: var(--gold); margin-bottom: 1.2rem; }
.concept-card h3 {
  font-size: 1.3rem; margin-bottom: .8rem;
  font-family: 'Noto Serif JP', serif;
}
.concept-card p { font-size: .85rem; color: var(--text-mid); line-height: 1.9; }

/* ========================================
   AI DIAGNOSIS
   ======================================== */
.ai-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
  margin-top: 3rem; align-items: start;
}
.ai-desc { color: rgba(255,255,255,.75); font-size: .9rem; line-height: 2; margin-bottom: 1.5rem; }
.ai-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.ai-tags span {
  padding: 6px 14px; border: 1px solid var(--gold);
  color: var(--gold-light); font-size: .72rem; letter-spacing: .08em;
}
.ai-steps { display: flex; flex-direction: column; gap: .8rem; }
.ai-step {
  display: flex; align-items: center; gap: 1rem;
  color: rgba(255,255,255,.7); font-size: .85rem;
  padding-bottom: .8rem; border-bottom: 1px solid rgba(255,255,255,.08);
}
.step-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem; color: var(--gold); line-height: 1;
  min-width: 2rem;
}
.ai-benefits { display: flex; flex-direction: column; gap: 1.5rem; }
.benefit-item {
  padding: 1.5rem;
  border-left: 2px solid var(--gold);
  background: rgba(255,255,255,.04);
}
.benefit-item h4 {
  font-family: 'Noto Serif JP', serif;
  color: var(--gold-light); margin-bottom: .5rem; font-size: 1rem;
}
.benefit-item p { color: rgba(255,255,255,.6); font-size: .82rem; }

/* ========================================
   MENU
   ======================================== */
.menu-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; margin-top: 2.5rem;
}
.menu-card {
  padding: 2rem 1.5rem;
  border: 1px solid var(--border);
  background: var(--white);
  position: relative; overflow: hidden;
  transition: var(--transition);
}
.menu-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--gold);
  transform: scaleX(0); transition: transform var(--transition);
}
.menu-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.menu-card:hover::after { transform: scaleX(1); }
.menu-badge {
  display: inline-block; font-size: .65rem; letter-spacing: .1em;
  color: var(--gold); border: 1px solid var(--gold-pale);
  padding: 3px 10px; margin-bottom: 1rem; background: var(--gold-pale);
}
.menu-card h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.05rem; margin-bottom: .8rem;
}
.menu-desc { font-size: .8rem; color: var(--text-mid); line-height: 1.9; margin-bottom: 1rem; }
.menu-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem; }
.menu-tags span {
  font-size: .65rem; color: var(--text-mid);
  background: var(--cream); padding: 3px 8px; border-radius: 2px;
}
.menu-freq { font-size: .72rem; color: var(--gold); letter-spacing: .05em; }
.menu-cta-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; background: var(--gold-pale);
  border-color: var(--gold-pale);
}
.menu-cta-card p { font-size: .9rem; line-height: 2; margin-bottom: 1.5rem; color: var(--text-mid); }

/* Flow */
.flow-section { margin-top: 4rem; padding: 2.5rem; background: var(--cream-mid); text-align: center; }
.flow-title { font-family: 'Noto Serif JP', serif; font-size: 1.1rem; margin-bottom: 1.5rem; }
.flow-steps {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: .5rem;
}
.flow-step {
  text-align: center; padding: 1rem 1.2rem;
  background: var(--white); border: 1px solid var(--border);
  font-size: .75rem; line-height: 1.6; min-width: 80px;
}
.flow-step span {
  display: block; font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem; color: var(--gold); margin-bottom: .3rem;
}
.flow-arrow { color: var(--gold); font-size: 1.2rem; }

/* ========================================
   HERB PEELING
   ======================================== */
.peeling-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-top: 3rem; align-items: start;
}
.feature-item {
  display: flex; gap: 1.2rem; padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.feature-icon { font-size: 1.5rem; line-height: 1; flex-shrink: 0; }
.feature-item h4 { font-family: 'Noto Serif JP', serif; margin-bottom: .3rem; }
.feature-item p { font-size: .82rem; color: var(--text-mid); }
.peeling-cycle {
  padding: 2rem; background: var(--white); border: 1px solid var(--border);
}
.peeling-cycle h4 {
  font-family: 'Noto Serif JP', serif; margin-bottom: 1.5rem; font-size: 1.05rem;
}
.cycle-items { display: flex; flex-direction: column; gap: .8rem; margin-bottom: 1.5rem; }
.cycle-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: .8rem 1rem; background: var(--cream);
  font-size: .85rem;
}
.cycle-item em { color: var(--gold); font-style: normal; font-size: .8rem; }
.cycle-note { font-size: .82rem; color: var(--text-mid); line-height: 1.9; margin-bottom: 1rem; }
.freq-badge {
  display: inline-block; padding: 8px 20px;
  border: 1px solid var(--gold); color: var(--gold); font-size: .75rem; letter-spacing: .08em;
}

/* ========================================
   ACCESS
   ======================================== */
.access-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 4rem; margin-top: 3rem; align-items: start;
}
.access-item { margin-bottom: 1.5rem; }
.access-item h4 {
  font-size: .65rem; letter-spacing: .2em;
  color: var(--gold); margin-bottom: .4rem;
}
.access-item p, .access-item a {
  font-size: .9rem; color: var(--text-mid); line-height: 1.8;
}
.access-item a:hover { color: var(--gold); }
.access-map iframe { border-radius: var(--radius); filter: grayscale(.2); }

/* ========================================
   CONTACT
   ======================================== */
.contact-form { max-width: 700px; margin: 2.5rem auto 0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block; font-size: .75rem; letter-spacing: .08em;
  color: rgba(255,255,255,.7); margin-bottom: .5rem;
}
.required {
  display: inline-block; font-size: .6rem; background: var(--gold);
  color: var(--white); padding: 1px 6px; margin-left: 6px; vertical-align: middle;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.15);
  color: var(--white);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: .85rem;
  transition: border-color var(--transition);
  outline: none;
  border-radius: var(--radius);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.3); }
.form-group select option { background: var(--dark-mid); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--gold); }
.checkbox-label {
  display: flex; align-items: flex-start; gap: .8rem; cursor: pointer;
  color: rgba(255,255,255,.65) !important; font-size: .82rem !important;
}
.checkbox-label input { width: auto; margin-top: 3px; accent-color: var(--gold); }
.checkbox-label a { color: var(--gold-light); text-decoration: underline; }
.form-message {
  padding: 12px 16px; border-radius: var(--radius);
  font-size: .85rem; margin-bottom: 1rem; text-align: center;
}
.form-message.success { background: rgba(184,148,74,.2); color: var(--gold-light); }
.form-message.error { background: rgba(220,80,80,.15); color: #f08080; }

/* ========================================
   FOOTER
   ======================================== */
#footer {
  background: var(--dark);
  padding: 60px 24px 30px;
  text-align: center;
}
.footer-inner { max-width: 900px; margin: 0 auto; }
.footer-logo { margin-bottom: 2rem; }
.footer-logo .logo-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem; letter-spacing: .2em; color: var(--white); display: block;
}
.footer-logo .logo-ja {
  font-size: .65rem; letter-spacing: .15em; color: var(--gold);
}
.footer-nav {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem;
  margin-bottom: 2rem;
}
.footer-nav a {
  font-size: .72rem; letter-spacing: .1em;
  color: rgba(255,255,255,.5); transition: color var(--transition);
}
.footer-nav a:hover { color: var(--gold); }
.footer-copy { font-size: .65rem; color: rgba(255,255,255,.3); letter-spacing: .1em; }

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-up { opacity: 0; transform: translateY(30px); animation: fadeUp .9s ease forwards; }
.delay-1 { animation-delay: .15s; }
.delay-2 { animation-delay: .3s; }
.delay-3 { animation-delay: .45s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: .15s; }
.reveal.delay-2 { transition-delay: .3s; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 900px) {
  .concept-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .menu-grid { grid-template-columns: 1fr 1fr; }
  .peeling-grid { grid-template-columns: 1fr; gap: 2rem; }
  .access-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links {
    display: none; flex-direction: column; position: fixed;
    top: 0; right: 0; bottom: 0; width: 260px;
    background: var(--cream); padding: 80px 32px 40px;
    box-shadow: -4px 0 40px rgba(0,0,0,.1); gap: 1.5rem;
    transition: transform var(--transition); transform: translateX(100%);
  }
  .nav-links.open { display: flex; transform: translateX(0); }
  .hamburger { display: flex; }
  .menu-grid { grid-template-columns: 1fr; }
  .section { padding: 70px 0; }
  .flow-steps { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }
}