/* ===== 色とサイズの設定(ここを変えるとサイト全体の色が変わる) ===== */
:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-2: #f0eee8;
  --text: #1d1d1f;
  --sub: #6b6b70;
  --line: #e6e3dc;
  --accent: #e8552d;
  --accent-soft: #fde9e2;
  --line-green: #06c755;
  --x-black: #0f0f0f;
  --x-text: #ffffff;
  --radius: 20px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 8px 24px rgba(0, 0, 0, .05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141416;
    --surface: #1e1e21;
    --surface-2: #28282c;
    --text: #f2f2f2;
    --sub: #a0a0a6;
    --line: #2e2e33;
    --accent: #ff7a50;
    --accent-soft: #3a2219;
    --x-black: #f2f2f2;
    --x-text: #0f0f0f;
    --shadow: none;
  }
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, system-ui, sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== ヘッダー ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: .12em;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 4px;
}

.nav a {
  white-space: nowrap;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--sub);
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .2s, color .2s;
}

.nav a:hover {
  background: var(--surface-2);
  color: var(--text);
}

/* ===== 自己紹介 ===== */
.hero {
  padding: 88px 0 72px;
  background:
    radial-gradient(600px 300px at 50% 0%, var(--accent-soft), transparent 70%);
}

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

/* 小さい版:自己紹介だけを画面の真ん中に置く */
.hero--solo {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 60px - 113px);
  min-height: calc(100svh - 60px - 113px);
}

.hero--solo .hero-name { margin-bottom: 32px; }

.avatar {
  display: block;
  width: 112px;
  height: 112px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: #fff; /* 透明な背景の絵なので、暗い画面でも線が見えるよう白を敷く */
  object-fit: cover;
  box-shadow: 0 0 0 6px var(--surface), var(--shadow);
}

.hero-hello {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .1em;
}

.hero-name {
  margin: 4px 0 8px;
  font-size: clamp(2.2rem, 6vw, 3.2rem);
  line-height: 1.3;
  letter-spacing: .04em;
}

.hero-catch {
  margin: 0 0 16px;
  font-size: clamp(1.05rem, 2.6vw, 1.25rem);
  font-weight: 700;
}

.hero-text {
  max-width: 34em;
  margin: 0 auto 32px;
  color: var(--sub);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ===== ボタン ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform .15s, opacity .15s;
}

.btn:hover { transform: translateY(-2px); opacity: .92; }

.btn svg { width: 16px; height: 16px; fill: currentColor; }

.btn-primary { background: var(--accent); color: #fff; }

.btn-x { background: var(--x-black); color: var(--x-text); }

.btn-line { background: var(--line-green); color: #fff; }

.btn-small {
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: .9rem;
}

/* ===== セクション共通 ===== */
.section {
  padding: 72px 0;
  scroll-margin-top: 60px;
}

.section + .section { border-top: 1px solid var(--line); }

.section-label {
  margin: 0;
  color: var(--accent);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .2em;
}

.section-title {
  margin: 4px 0 32px;
  font-size: clamp(1.6rem, 4vw, 2rem);
  line-height: 1.4;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card-title {
  margin: 0 0 6px;
  font-size: 1.15rem;
  line-height: 1.5;
}

.card-text {
  margin: 0 0 16px;
  color: var(--sub);
  font-size: .95rem;
}

/* ===== アプリ ===== */
.app-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.app-icon {
  flex: none;
  width: 72px;
  height: 72px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--g1), var(--g2));
  color: #fff;
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 72px;
  text-align: center;
}

.app-body { min-width: 0; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 0 10px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--sub);
  font-size: .78rem;
  font-weight: 600;
}

/* ===== LINEスタンプ ===== */
.stamp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}

.stamp {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: var(--surface-2);
  color: var(--sub);
  font-size: .75rem;
}

/* ===== 事業 ===== */
.biz-num {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
}

/* ===== X ===== */
.x-card {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 28px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-align: center;
}

.x-logo {
  width: 40px;
  height: 40px;
  fill: var(--text);
}

.x-handle {
  margin: 12px 0 4px;
  font-size: 1.3rem;
  font-weight: 800;
}

.x-text {
  margin: 0 0 24px;
  color: var(--sub);
}

/* ===== フッター ===== */
.site-footer {
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--sub);
  font-size: .85rem;
  text-align: center;
}

.site-footer p { margin: 0; }

/* ===== スマホ ===== */
@media (max-width: 600px) {
  .logo { font-size: 1rem; letter-spacing: .04em; }
  .nav { gap: 0; }
  .nav a { padding: 6px 7px; font-size: .8rem; }
  .hero { padding: 64px 0 56px; }
  .section { padding: 56px 0; }
  .card { padding: 22px; }
  .app-card { gap: 16px; }
  .app-icon { width: 60px; height: 60px; border-radius: 15px; line-height: 60px; font-size: 1.5rem; }
}