:root {
  --c-main: #1f2937;
  --c-sub:  #fbbf24;
  --c-bg:   #0b1120;
  --f-main: "Noto Sans JP", sans-serif;

  --radius: 8px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  --pad:    16px;
  --gap:    24px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--f-main);
  background-color: var(--c-bg);
  color: #e5e7eb;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--c-main);
  text-decoration: none;
}

.inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px;
}

/* header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
}

.logo {
  font-weight: 700;
  color: var(--c-sub);
}

.nav {
  display: flex;
  gap: 16px;
}

.nav a {
  color: #e5e7eb;
  font-size: 14px;
}

/* hero */

.hero {
  padding: 40px 0 32px;
  background: linear-gradient(135deg, var(--c-main), #020617);
}

.hero-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}

.hero-text {
  flex: 1 1 260px;
}

.hero-copy {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 12px;
}

.hero-hours,
.hero-tel {
  margin: 4px 0;
}

.hero-img {
  flex: 1 1 260px;
}

.btn-main {
  display: inline-block;
  margin-top: 16px;
  padding: 10px 20px;
  border-radius: 999px;
  background-color: var(--c-sub);
  color: #111827;
  font-weight: 600;
  box-shadow: var(--shadow);
}

/* sections */

.section {
  padding: 40px 0;
  background-color: #020617;
}

.section-alt {
  background-color: #030712;
}

.sec-title {
  font-size: 20px;
  margin: 0 0 20px;
}

/* service cards */

.svc-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--gap);
}

.card {
  background-color: #020617;
  border-radius: var(--radius);
  padding: var(--pad);
  box-shadow: var(--shadow);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 16px;
}

.card p {
  margin: 0;
  font-size: 14px;
}

/* plan table */

.plan-table {
  width: 100%;
  border-collapse: collapse;
}

.plan-table tr {
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.plan-table td {
  padding: 10px 4px;
  font-size: 14px;
}

.plan-table td:first-child {
  font-weight: 600;
}

/* access */

.access-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.access-info {
  flex: 1 1 260px;
}

.access-imgs {
  flex: 1 1 260px;
}

/* contact */

.contact-form {
  max-width: 520px;
}

.form-row {
  margin-bottom: 12px;
}

.form-row label {
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #4b5563;
  background-color: #020617;
  color: #e5e7eb;
}

/* footer */

.site-footer {
  padding: 16px 0 24px;
  background-color: #020617;
  text-align: center;
  font-size: 12px;
  color: #9ca3af;
}

/* theme 切替 */

body[data-theme="soft"] {
  background-color: #fefce8;
  color: #1f2937;
}

body[data-theme="soft"] .section,
body[data-theme="soft"] .section-alt {
  background-color: transparent;
}

body[data-theme="soft"] .site-header {
  background: rgba(248, 250, 252, 0.9);
}

body[data-theme="soft"] .nav a {
  color: #111827;
}

/* img style */

body[data-img-style="circle"] img[data-img="main"] {
  border-radius: 999px;
}

/* responsive */

@media (max-width: 768px) {
  .site-header .inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero-inner {
    flex-direction: column;
  }
}