:root {
  --ink: #0e0e0e;
  --bone: #f6f1e8;
  --night: #141414;
  --indigo: #171c2f;
  --vermilion: #8b1e18;
  --gold: #c6a34f;
}

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

body {
  font-family: 'Noto Serif JP', serif;
  background: var(--bone);
  color: var(--ink);
  line-height: 1.85;
}

/* HERO */
.hero {
  position: relative;
  min-height: 92vh;
  background:
    linear-gradient(rgba(0,0,0,.65), rgba(0,0,0,.9)),
    radial-gradient(circle at top, #222 0%, #000 70%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 60px 20px;
  color: #f4eee3;
}

.paper-overlay {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(255,255,255,0.025),
    rgba(255,255,255,0.025) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
}

/* MON */
.mon {
  width: 92px;
  height: 92px;
  margin-bottom: 32px;
  position: relative;
}

.mon .outer,
.mon .inner {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--gold);
}

.mon .outer {
  inset: 0;
}

.mon .inner {
  inset: 18px;
}

/* HERO TEXT */
.hero h1 {
  font-family: 'Cinzel', serif;
  font-size: 3.5rem;
  letter-spacing: 4px;
}

.hero-sub {
  margin-top: 10px;
  letter-spacing: 2px;
  font-size: 1rem;
}

.hero-est {
  margin-top: 18px;
  font-size: 0.75rem;
  letter-spacing: 3px;
  color: var(--gold);
}

/* NAV */
.border-nav {
  display: flex;
  justify-content: center;
  gap: 42px;
  padding: 18px;
  background: var(--ink);
  border-top: 3px solid var(--vermilion);
  border-bottom: 3px solid var(--vermilion);
}

.border-nav a {
  color: #ddd;
  text-decoration: none;
  letter-spacing: 2px;
  font-size: 0.85rem;
}

.border-nav a:hover {
  color: var(--gold);
}

/* DIVIDERS */
.divider {
  height: 72px;
}

.divider.kumo {
  background:
    repeating-radial-gradient(circle at 0 100%,
      rgba(0,0,0,0.06) 0 18px,
      transparent 18px 36px);
}

.divider.nami {
  background:
    repeating-linear-gradient(
      90deg,
      rgba(0,0,0,0.06),
      rgba(0,0,0,0.06) 16px,
      transparent 16px,
      transparent 32px
    );
}

/* SECTIONS */
.section {
  padding: 120px 12%;
}

.frame {
  max-width: 900px;
  margin: auto;
}

.section h2 {
  font-family: 'Cinzel', serif;
  font-size: 2.4rem;
  letter-spacing: 2px;
}

.lead {
  margin: 22px 0;
  font-size: 1.05rem;
  opacity: 0.9;
}

/* THEMES */
.section.ink {
  background: var(--indigo);
  color: #f4ede2;
}

.section.bone {
  background: var(--bone);
}

.section.night {
  background: var(--night);
  color: #f4ede2;
}

/* GALLERY */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px,1fr));
  gap: 24px;
  margin-top: 42px;
}

.art-box {
  height: 290px;
  border: 2px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 2px;
  opacity: 0.7;
}

/* FORM */
.booking-form {
  margin-top: 32px;
  display: grid;
  gap: 16px;
}

.booking-form input,
.booking-form textarea {
  padding: 14px;
  font-family: inherit;
  border: 1px solid #bbb;
}

.booking-form button {
  background: var(--vermilion);
  color: #fff;
  border: none;
  padding: 14px;
  letter-spacing: 2px;
  cursor: pointer;
}

.booking-form button:hover {
  background: var(--gold);
  color: #111;
}

/* CONTACT */
.contact,
.legal {
  margin-top: 28px;
  font-size: 0.85rem;
}

/* FOOTER */
footer {
  background: var(--ink);
  color: #999;
  text-align: center;
  padding: 26px;
  font-size: 0.75rem;
  letter-spacing: 2px;
}

/* MOBILE */
@media (max-width: 768px) {
  .section {
    padding: 90px 8%;
  }

  .hero h1 {
    font-size: 2.4rem;
  }
}