:root {
  --ink: #12151a;
  --soft: #3e4653;
  --muted: #6d7582;
  --line: #d7dde6;
  --paper: #eef1f5;
  --white: #ffffff;
  --navy: #1b365d;
  --navy-2: #152a4a;
  --coral: #d35a3e;
  --ok: #2c6a52;
  --err: #b1352c;
  --max: 1100px;
  --font: "IBM Plex Sans JP", "Hiragino Sans", sans-serif;
  --display: "Kaisei Decol", "Hiragino Mincho ProN", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  line-height: 1.75;
}
a { color: inherit; }
.wrap { width: min(calc(100% - 36px), var(--max)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--navy);
  color: #eef3f8;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--display);
  font-size: 1.2rem;
  letter-spacing: 0.04em;
}
.logo-mark { width: 30px; height: 30px; }
.nav { display: flex; align-items: center; gap: 18px; }
.nav a {
  text-decoration: none;
  color: #c5d0de;
  font-size: 0.9rem;
}
.nav a.is-current, .nav a:hover { color: #fff; }
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid #3a5578;
  background: transparent;
  color: #fff;
  border-radius: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 2px;
  text-decoration: none;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.btn-solid { background: var(--coral); color: #fff; }
.btn-solid:hover { background: #bc4a30; }
.btn-ghost { background: transparent; border-color: #b7c2d0; color: var(--ink); }
.site-header .btn-solid {
  background: #fff;
  color: var(--navy);
}
.site-header .btn-solid:hover { background: #e8eef6; }
.btn-full { width: 100%; }

.hero {
  padding: 72px 0 36px;
  background:
    linear-gradient(180deg, #1b365d 0 220px, transparent 220px);
  color: var(--ink);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: stretch;
}
.hero-copy {
  background: var(--white);
  padding: 36px 32px;
  border: 1px solid var(--line);
}
.kicker {
  color: var(--coral);
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 700;
}
h1, h2, h3 {
  font-family: var(--display);
  line-height: 1.4;
  font-weight: 500;
}
h1 { font-size: clamp(2rem, 4vw, 3.1rem); margin: 10px 0 14px; }
.lede { color: var(--soft); max-width: 36rem; margin: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 14px; }
.meta-row { display: flex; flex-wrap: wrap; gap: 14px; color: var(--muted); font-size: 0.88rem; }

.hours {
  background: var(--navy-2);
  color: #dce6f2;
  border: 0;
  border-radius: 0;
  padding: 28px 24px;
}
.hours .kicker { color: #f0b4a6; }
.hours li {
  display: flex;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px solid #314e73;
  list-style: none;
}
.hours ul { margin: 8px 0 0; padding: 0; }

.section { padding: 60px 0; }
.section-head { max-width: 620px; margin-bottom: 28px; }
.section-head h2 { font-size: clamp(1.55rem, 3vw, 2.15rem); margin: 8px 0; }

.menu-grid, .info-3 { display: grid; gap: 14px; }
.menu-grid { grid-template-columns: repeat(3, 1fr); }
.info-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 0;
  overflow: hidden;
}
.card-pad { padding: 20px; }
.hero-media img,
.photo {
  width: 100%;
  display: block;
  object-fit: cover;
}
.hero-media img {
  height: 240px;
}
.photo {
  height: 180px;
}
.about-photo {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
  margin-bottom: 20px;
  border: 1px solid var(--line);
}
.yen { color: var(--navy); font-weight: 700; }

.page-hero { padding: 44px 0 8px; }
.page-hero h1 { font-size: clamp(1.75rem, 3vw, 2.5rem); }

.site-footer {
  margin-top: 20px;
  padding: 40px 0 24px;
  background: var(--navy);
  color: #b7c4d4;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 20px;
  margin-bottom: 22px;
}
.footer-grid strong { color: #fff; }
.footer-grid a { display: block; text-decoration: none; margin: 6px 0; color: #b7c4d4; }

.auth-page { min-height: calc(100vh - 68px); display: grid; place-items: center; padding: 40px 0 70px; }
.auth-card { width: min(100%, 440px); padding: 32px; }
.auth-card h1 { font-size: 1.75rem; }
.field { margin: 14px 0; }
.field label { display: block; margin-bottom: 6px; font-size: 0.9rem; }
.field input, .field select, .field textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid #c5d4ea;
  border-color: var(--navy);
}
.field textarea { min-height: 130px; }
.field-error, .form-error { color: var(--err); font-size: 0.85rem; }
.form-error { background: #f8e8e4; padding: 10px 12px; }
.form-error[hidden], .field-error:empty { display: none; }
.check { display: flex; gap: 8px; align-items: flex-start; font-size: 0.9rem; }
.auth-switch { text-align: center; color: var(--muted); }
.prose { max-width: 740px; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 11px 8px; border-bottom: 1px solid var(--line); }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 20px 0; }
.stat { background: var(--white); border: 1px solid var(--line); padding: 14px; }
.stat b { display: block; font-size: 1.5rem; font-family: var(--display); }
.status { background: #e4f0ea; color: var(--ok); padding: 2px 8px; font-size: 0.78rem; }
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 16px; }
.success-box { background: #e4f0ea; padding: 24px; }

@media (max-width: 880px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav {
    display: none;
    position: absolute;
    left: 18px;
    right: 18px;
    top: 68px;
    background: var(--navy-2);
    border: 1px solid #314e73;
    padding: 14px;
    flex-direction: column;
    align-items: stretch;
  }
  .nav.is-open { display: flex; }
  .hero { background: var(--navy); padding-bottom: 0; }
  .hero-copy { margin-bottom: 0; }
  .hero-grid, .menu-grid, .info-3, .footer-grid, .stat-row, .contact-grid { grid-template-columns: 1fr; }
}