@charset "UTF-8";

/* ベースカラー（ロゴ寄せ） */
:root {
  --blue-bg: #0040ff;
  --blue-deep: #001a66;
  --yellow-main: #ffd800;
  --text-main: #f5f5f5;
  --text-sub: #d4ddff;
  --border-soft: rgba(255,255,255,0.16);
}

/* リセット少なめ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Helvetica Neue", Arial, "Noto Sans JP", sans-serif;
  background: radial-gradient(circle at top, #0050ff 0%, #00031a 55%, #000 100%);
  color: var(--text-main);
  line-height: 1.7;
}

/* コンテナ */
.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ヘッダー */
.site-header {
  background: rgba(0, 0, 0, 0.85);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}

.logo-block {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-logo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--yellow-main);
  background: #000;
}

.site-title-wrap h1 {
  font-size: 20px;
  margin: 0;
}

.site-sub {
  font-size: 12px;
  color: var(--text-sub);
  margin: 2px 0 0;
}

/* ナビ */
.site-nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-size: 13px;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-sub);
  position: relative;
  padding-bottom: 2px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--yellow-main);
  transition: width 0.18s ease-out;
}

.site-nav a:hover {
  color: #fff;
}

.site-nav a:hover::after {
  width: 100%;
}

/* 共通セクション */
.section,
.hero {
  padding: 40px 0;
}

.section-alt {
  background: rgba(0, 0, 0, 0.45);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.section-title {
  font-size: 18px;
  margin-bottom: 16px;
  border-left: 4px solid var(--yellow-main);
  padding-left: 10px;
}

/* Hero */
.hero {
  text-align: left;
}

.hero-tagline {
  font-size: 13px;
  color: var(--yellow-main);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.hero-title {
  font-size: 24px;
  margin: 0 0 12px;
}

.hero-lead {
  font-size: 14px;
  color: var(--text-sub);
}

/* Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

@media (max-width: 720px) {
  .service-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.service-card {
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  background: rgba(0, 0, 0, 0.55);
  padding: 14px 16px;
}

.service-card h3 {
  font-size: 15px;
  margin-top: 0;
  margin-bottom: 6px;
}

.price {
  font-size: 14px;
  margin-bottom: 8px;
  color: #fff;
}

.note {
  font-size: 13px;
  color: var(--text-sub);
}

.attention {
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 16px;
}

/* YouTube */
.youtube-link-wrap {
  margin-top: 16px;
}

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--yellow-main);
  background: transparent;
  color: #fff;
  font-size: 13px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.16s, color 0.16s, box-shadow 0.16s;
}

.btn:hover {
  background: var(--yellow-main);
  color: #000;
  box-shadow: 0 0 18px rgba(255,216,0,0.45);
}

.btn-primary {
  background: var(--yellow-main);
  color: #000;
}

/* フォーム */
.contact-form {
  max-width: 540px;
  margin-top: 18px;
}

.form-row {
  margin-bottom: 14px;
}

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

.req {
  font-size: 11px;
  color: var(--yellow-main);
  margin-left: 4px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 14px;
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

/* フッター */
.site-footer {
  padding: 18px 0 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
  background: rgba(0, 0, 0, 0.9);
  font-size: 12px;
  color: var(--text-sub);
}

.footer-inner {
  text-align: center;
}

/* スマホ調整 */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .site-nav ul {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .hero {
    text-align: left;
  }
}