/* ============================================================
   masaki works — Global Stylesheet
   ============================================================ */

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

/* ---- Variables ---- */
:root {
  --black:   #080808;
  --white:   #f9f9f9;
  --gold:    #c8a86b;
  --gold-lt: #e8d5ab;
  --g100:    #f4f4f4;
  --g200:    #e4e4e4;
  --g400:    #a0a0a0;
  --g600:    #5a5a5a;
  --g800:    #2a2a2a;
  --text:    #1a1a1a;

  --serif: 'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
  --sans:  'Noto Sans JP', 'Inter', -apple-system, sans-serif;

  --sp-xs:  0.5rem;
  --sp-sm:  1rem;
  --sp-md:  2rem;
  --sp-lg:  4rem;
  --sp-xl:  8rem;
  --sp-2xl: 14rem;

  --radius: 2px;
  --ease:   cubic-bezier(0.16, 1, 0.3, 1);
  --trans:  0.5s var(--ease);

  --nav-h:  72px;
  --max-w:  1160px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

/* ---- Typography ---- */
.t-serif  { font-family: var(--serif); }
.t-en     { font-family: 'Cormorant Garamond', serif; letter-spacing: 0.06em; }
.t-label  { font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--g400); }
.t-gold   { color: var(--gold); }

h1 { font-family: var(--serif); font-weight: 300; line-height: 1.15; }
h2 { font-family: var(--serif); font-weight: 300; line-height: 1.2; }
h3 { font-family: var(--sans); font-weight: 500; line-height: 1.4; }

/* ---- Nav ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 var(--sp-md);
  transition: background var(--trans), box-shadow var(--trans);
}
.nav.scrolled {
  background: rgba(8,8,8,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav--light .nav-inner { color: var(--white); }
.nav-inner {
  width: 100%; max-width: var(--max-w); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  color: var(--white);
}
.nav-logo {
  font-family: var(--serif); font-size: 1.35rem; font-weight: 400;
  letter-spacing: 0.08em; color: inherit;
}
.nav-logo span { color: var(--gold); }
.nav-links { display: flex; align-items: center; gap: var(--sp-lg); }
.nav-links a {
  font-size: 0.8rem; letter-spacing: 0.12em;
  opacity: 0.8; transition: opacity 0.3s;
}
.nav-links a:hover { opacity: 1; }
.nav-cta-btn {
  font-size: 0.75rem; letter-spacing: 0.14em;
  padding: 0.55rem 1.4rem;
  border: 1px solid rgba(255,255,255,0.45);
  color: var(--white);
  transition: var(--trans);
}
.nav-cta-btn:hover { background: var(--white); color: var(--black); }
.nav-ham {
  display: none; flex-direction: column; gap: 5px;
  width: 24px; padding: 4px 0;
}
.nav-ham span {
  display: block; height: 1px; background: currentColor;
  transition: var(--trans); transform-origin: center;
}
.nav-ham.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-ham.open span:nth-child(2) { opacity: 0; }
.nav-ham.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---- Section Base ---- */
.section {
  padding: var(--sp-xl) var(--sp-md);
}
.section--dark  { background: var(--black); color: var(--white); }
.section--gray  { background: var(--g100); }
.section--slim  { padding: var(--sp-lg) var(--sp-md); }

.section-inner {
  max-width: var(--max-w); margin: 0 auto;
}

.section-header { margin-bottom: var(--sp-lg); }
.section-header--center { text-align: center; }

.section-eyebrow {
  display: inline-block;
  font-size: 0.68rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--gold);
  margin-bottom: var(--sp-sm);
}
.section-title {
  font-family: var(--serif); font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300; line-height: 1.15;
}
.section-desc {
  margin-top: var(--sp-sm);
  font-size: 0.95rem; color: var(--g600); max-width: 520px;
  line-height: 1.85;
}
.section-desc--center { margin: var(--sp-sm) auto 0; text-align: center; }

/* ---- Hero ---- */
.hero {
  position: relative;
  height: 100svh; min-height: 600px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; color: var(--white);
}
.hero__bg {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, #0f1318 0%, #1a1f2b 60%, #0d1117 100%);
}
.hero__bg img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.55; transition: opacity 1.2s;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.5) 100%);
}
.hero__content {
  position: relative; z-index: 1;
  text-align: center; padding: 0 var(--sp-md);
}
.hero__eyebrow {
  font-size: 0.7rem; letter-spacing: 0.28em;
  text-transform: uppercase; color: var(--gold-lt);
  margin-bottom: var(--sp-md);
  display: flex; align-items: center; justify-content: center; gap: 12px;
}
.hero__eyebrow::before, .hero__eyebrow::after {
  content: ''; display: block; width: 32px; height: 1px; background: var(--gold);
}
.hero__title {
  font-family: var(--serif); font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 300; line-height: 1.05; letter-spacing: 0.04em;
  margin-bottom: var(--sp-md);
}
.hero__title em { font-style: italic; color: var(--gold-lt); white-space: nowrap; }
.hero__sub {
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 300; letter-spacing: 0.14em;
  color: rgba(255,255,255,0.7); margin-bottom: var(--sp-lg);
  line-height: 2;
}
.hero__scroll {
  position: absolute; bottom: var(--sp-lg); left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 0.6rem; letter-spacing: 0.2em; color: rgba(255,255,255,0.45);
  animation: scrollBounce 2s ease-in-out infinite;
}
.hero__scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.85rem 2.4rem;
  font-size: 0.8rem; letter-spacing: 0.14em;
  transition: var(--trans);
}
.btn-primary {
  background: var(--gold); color: var(--black);
  font-weight: 500;
}
.btn-primary:hover { background: var(--gold-lt); }
.btn-outline {
  border: 1px solid currentColor; color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--black); }
.btn-outline--dark {
  border: 1px solid var(--text); color: var(--text);
}
.btn-outline--dark:hover { background: var(--text); color: var(--white); }
.btn-arrow::after { content: '→'; font-size: 1rem; }

/* ---- Image Placeholder ---- */
.img-ph {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #1a1f2b 0%, #252d3d 100%);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 8px; color: rgba(255,255,255,0.25);
  font-size: 0.75rem; letter-spacing: 0.12em;
}
.img-ph::before {
  content: '';
  display: block; width: 40px; height: 40px;
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: 50%;
}

/* ---- Service Cards ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--g200);
  border: 1px solid var(--g200);
}
.card {
  background: var(--white); padding: var(--sp-lg) var(--sp-md);
  transition: var(--trans);
  display: flex; flex-direction: column;
}
.card:hover { background: var(--black); color: var(--white); }
.card:hover .card-link { color: var(--gold); }
.card:hover .card-icon { border-color: rgba(255,255,255,0.15); color: var(--gold); }
.card-icon {
  width: 52px; height: 52px;
  border: 1px solid var(--g200);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: var(--sp-md);
  transition: var(--trans);
}
.card-num {
  font-size: 0.65rem; letter-spacing: 0.2em;
  color: var(--gold); margin-bottom: var(--sp-sm);
}
.card-title {
  font-family: var(--serif); font-size: 1.6rem; font-weight: 300;
  margin-bottom: var(--sp-sm);
}
.card-desc {
  font-size: 0.88rem; color: var(--g600); line-height: 1.85;
  flex: 1; margin-bottom: var(--sp-md);
  transition: color 0.3s;
}
.card:hover .card-desc { color: var(--g400); }
.card-link {
  font-size: 0.75rem; letter-spacing: 0.14em;
  color: var(--g600); display: flex; align-items: center; gap: 6px;
  transition: var(--trans);
}
.card-link::after { content: '→'; }

/* ---- Gallery Grid ---- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.gallery--4col { grid-template-columns: repeat(4, 1fr); }
.gallery-item {
  aspect-ratio: 3/4; overflow: hidden;
  position: relative; background: var(--g200);
}
.gallery-item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.8s var(--ease);
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item--wide { grid-column: span 2; aspect-ratio: 4/3; }
.gallery-item--tall { grid-row: span 2; }

/* ---- Before / After ---- */
.ba-wrap {
  position: relative; overflow: hidden;
  aspect-ratio: 4/3; cursor: col-resize; user-select: none;
}
.ba-before, .ba-after {
  position: absolute; inset: 0;
}
.ba-after { clip-path: inset(0 50% 0 0); }
.ba-before img, .ba-after img {
  width: 100%; height: 100%; object-fit: cover;
}
.ba-handle {
  position: absolute; top: 0; bottom: 0;
  left: 50%; width: 2px;
  background: var(--white); transform: translateX(-50%);
  display: flex; align-items: center; justify-content: center;
}
.ba-handle::after {
  content: '◀ ▶';
  position: absolute;
  background: var(--white); color: var(--black);
  font-size: 0.65rem; padding: 6px 10px;
  white-space: nowrap; border-radius: 2px;
}
.ba-label {
  position: absolute; bottom: var(--sp-sm);
  font-size: 0.65rem; letter-spacing: 0.18em;
  background: rgba(0,0,0,0.6); color: var(--white);
  padding: 4px 10px;
}
.ba-label--before { left: var(--sp-sm); }
.ba-label--after  { right: var(--sp-sm); }

/* ---- Steps (process flow) ---- */
.steps { display: flex; flex-direction: column; gap: 0; }
.step {
  display: grid; grid-template-columns: 80px 1fr;
  gap: var(--sp-md); padding: var(--sp-md) 0;
  border-bottom: 1px solid var(--g200);
  align-items: start;
}
.step:last-child { border-bottom: none; }
.step-num {
  font-family: var(--serif); font-size: 2.5rem;
  font-weight: 300; color: var(--g200); line-height: 1;
  padding-top: 4px;
}
.step-title {
  font-size: 1rem; font-weight: 500; margin-bottom: 0.35rem;
}
.step-desc { font-size: 0.88rem; color: var(--g600); line-height: 1.85; }

/* ---- Pricing ---- */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-md); }
.plan {
  border: 1px solid var(--g200); padding: var(--sp-lg) var(--sp-md);
  position: relative; transition: var(--trans);
}
.plan:hover { border-color: var(--gold); }
.plan--featured {
  border-color: var(--gold); background: var(--black); color: var(--white);
}
.plan-badge {
  position: absolute; top: -1px; right: var(--sp-md);
  background: var(--gold); color: var(--black);
  font-size: 0.65rem; letter-spacing: 0.14em;
  padding: 4px 12px;
}
.plan-name {
  font-family: var(--serif); font-size: 1.5rem; font-weight: 300;
  margin-bottom: var(--sp-xs);
}
.plan-price {
  font-size: 2rem; font-weight: 300; color: var(--gold);
  margin-bottom: var(--sp-xs);
  font-family: var(--serif);
}
.plan-price span { font-size: 0.85rem; color: var(--g400); }
.plan-desc { font-size: 0.82rem; color: var(--g400); margin-bottom: var(--sp-md); }
.plan-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--sp-lg); }
.plan-feature {
  font-size: 0.85rem; padding-left: 1.2rem;
  position: relative; color: var(--g600);
}
.plan--featured .plan-feature { color: var(--g400); }
.plan-feature::before {
  content: '✓'; position: absolute; left: 0;
  color: var(--gold); font-size: 0.8rem;
}

/* ---- CTA Banner ---- */
.cta-banner {
  padding: var(--sp-xl) var(--sp-md);
  background: var(--black); color: var(--white);
  text-align: center;
}
.cta-banner .section-title { color: var(--white); margin-bottom: var(--sp-md); }
.cta-banner .section-desc { color: var(--g400); margin: 0 auto var(--sp-lg); }

/* ---- Contact Form ---- */
.form {
  max-width: 640px; margin: 0 auto;
  display: flex; flex-direction: column; gap: var(--sp-md);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-md); }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-label {
  font-size: 0.75rem; letter-spacing: 0.1em; color: var(--g400);
}
.form-input, .form-select, .form-textarea {
  background: transparent; border: none; border-bottom: 1px solid var(--g600);
  color: var(--white); font-family: var(--sans); font-size: 0.95rem;
  padding: 0.7rem 0; outline: none; transition: border-color 0.3s; width: 100%;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--gold);
}
.form-select { appearance: none; cursor: pointer; }
.form-textarea { resize: vertical; min-height: 120px; }
.form-input::placeholder, .form-textarea::placeholder { color: var(--g600); }
.form-note {
  font-size: 0.75rem; color: var(--g600); text-align: center; line-height: 1.8;
}
.form-note a { color: var(--gold); }

/* ---- Footer ---- */
.footer {
  background: var(--black); color: var(--g600);
  padding: var(--sp-lg) var(--sp-md) var(--sp-md);
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 1fr auto; gap: var(--sp-xl);
  align-items: start; margin-bottom: var(--sp-lg);
  padding-bottom: var(--sp-lg); border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
  font-family: var(--serif); font-size: 1.5rem;
  color: var(--white); letter-spacing: 0.08em; margin-bottom: 0.5rem;
}
.footer-logo span { color: var(--gold); }
.footer-tagline { font-size: 0.8rem; line-height: 1.8; }
.footer-nav { display: flex; gap: var(--sp-lg); }
.footer-nav-col { display: flex; flex-direction: column; gap: 10px; }
.footer-nav-title {
  font-size: 0.7rem; letter-spacing: 0.18em;
  color: var(--white); margin-bottom: 4px;
}
.footer-nav a { font-size: 0.82rem; transition: color 0.3s; }
.footer-nav a:hover { color: var(--white); }
.footer-bottom {
  max-width: var(--max-w); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-copy { font-size: 0.72rem; }

/* ---- Scroll Reveal ---- */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---- Divider ---- */
.divider {
  width: 40px; height: 1px; background: var(--gold);
  margin: var(--sp-md) 0;
}
.divider--center { margin: var(--sp-md) auto; }

/* ---- Utility ---- */
.mt-sm { margin-top: var(--sp-sm); }
.mt-md { margin-top: var(--sp-md); }
.mt-lg { margin-top: var(--sp-lg); }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-md { gap: var(--sp-md); }
.text-center { text-align: center; }

/* ---- Page Hero (inner pages) ---- */
.page-hero {
  height: 70svh; min-height: 480px;
  display: flex; align-items: flex-end;
  padding: 0 var(--sp-md) var(--sp-xl);
  position: relative; overflow: hidden;
  color: var(--white);
}
.page-hero__bg {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, #0e1218 0%, #1c2230 100%);
}
.page-hero__bg img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.5;
}
.page-hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.1) 60%);
}
.page-hero__content { position: relative; z-index: 1; max-width: var(--max-w); width: 100%; }
.page-hero__eyebrow {
  font-size: 0.68rem; letter-spacing: 0.24em; color: var(--gold);
  margin-bottom: 0.8rem;
}
.page-hero__title {
  font-family: var(--serif); font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 300; line-height: 1.1;
}
.page-hero__sub {
  margin-top: 1rem;
  font-size: 0.9rem; color: rgba(255,255,255,0.65); line-height: 2;
}

/* ---- Two Column ---- */
.two-col {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--sp-xl); align-items: center;
}
.two-col--reverse { direction: rtl; }
.two-col--reverse > * { direction: ltr; }
.two-col__img {
  aspect-ratio: 4/5; overflow: hidden; position: relative;
  background: var(--g200);
}
.two-col__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.8s var(--ease);
}
.two-col__img:hover img { transform: scale(1.04); }

/* ============================================================
   Responsive
   ============================================================ */
/* ---- Responsive Grid Helpers ---- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-md); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-md); }

@media (max-width: 900px) {
  :root { --sp-xl: 5rem; --sp-2xl: 7rem; }
  .cards { grid-template-columns: 1fr; }
  .card { padding: var(--sp-md); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery--4col { grid-template-columns: repeat(2, 1fr); }
  .pricing { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .two-col--reverse { direction: ltr; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .footer-nav { flex-wrap: wrap; gap: var(--sp-md); }
  .footer-bottom { flex-direction: column; gap: var(--sp-sm); text-align: center; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root { --sp-xl: 4rem; --nav-h: 60px; }
  .nav-links { display: none; }
  .nav-ham { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; inset: 0; top: var(--nav-h);
    background: var(--black);
    align-items: center; justify-content: center;
    gap: var(--sp-lg); font-size: 1.2rem;
    z-index: 99;
  }
  .hero__title { font-size: clamp(2.2rem, 11vw, 3.5rem); }
  .gallery { grid-template-columns: 1fr; }
  .gallery--4col { grid-template-columns: 1fr; }
  .gallery-item--wide { grid-column: span 1; }
  .form-row { grid-template-columns: 1fr; }
  .step { grid-template-columns: 48px 1fr; }
  .step-num { font-size: 1.8rem; }
}