:root {
  --bg-color: #0b0f17;
  --card-bg: #111826;
  --border-color: #1e293b;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --accent-moon: #fef08a;
  --accent-cyan: #38bdf8;
  --font-base: 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-base);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

.container {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 4rem 1rem;
  flex: 1;
}

header {
  margin-bottom: 4rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.moon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
}

.brand-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.3;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-moon);
  letter-spacing: 0.05em;
}

section { margin-bottom: 3.5rem; }

h2 {
  font-size: 1.1rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

h2::before { content: "//"; color: var(--text-muted); }

p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 0.98rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.card p { font-size: 0.9rem; flex: 1; }
.card p:last-child { margin-bottom: 0; }

.card .links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.service-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.swipe-hint {
  display: none;
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.swipe-dots { display: none; }

@media (max-width: 640px) {
  .swipe-hint { display: inline; }

  .swipe-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 0.5rem;
  }

  .swipe-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--border-color);
    transition: background 0.2s;
  }

  .swipe-dots span.active { background: var(--accent-moon); }

  .service-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    margin: 0 -1rem;
    padding: 0 1rem 0.75rem;
    scroll-padding: 0 1rem;
    scrollbar-width: none;
  }

  .service-grid::-webkit-scrollbar { display: none; }

  .service-grid .card {
    flex: 0 0 82%;
    scroll-snap-align: start;
  }
}

.card.placeholder {
  background: transparent;
  border-style: dashed;
}

.contact-box {
  background: var(--card-bg);
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  font-size: 0.95rem;
}

.contact-item {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1rem;
  margin-bottom: 0.5rem;
}

.contact-item:last-child { margin-bottom: 0; }

.contact-label {
  color: var(--text-muted);
  width: 5.5em;
  font-family: var(--font-mono);
}

.contact-note {
  margin: 1rem 0 0;
  font-size: 0.85rem;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-moon);
  text-decoration: underline;
}

footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

@media (max-width: 480px) {
  .container { padding-top: 2.5rem; }
  .brand-title { font-size: 1.7rem; letter-spacing: 0.12em; }
  .moon { width: 44px; height: 44px; }
}

/* お問い合わせフォーム */
header.compact { margin-bottom: 2.5rem; padding-bottom: 1.5rem; }
header.compact .moon { width: 40px; height: 40px; }
header.compact .brand-title { font-size: 1.4rem; }
header.compact a { color: inherit; text-decoration: none; display: flex; align-items: center; gap: 1rem; }

.form { display: grid; gap: 1.4rem; }
.field { display: grid; gap: 0.4rem; }
.field label, .field .label { font-size: 0.9rem; color: var(--text-main); }
.req { margin-left: 0.4rem; font-size: 0.75rem; color: var(--accent-moon); font-family: var(--font-mono); }
.opt { margin-left: 0.4rem; font-size: 0.75rem; color: var(--text-muted); font-family: var(--font-mono); }

.field input, .field select, .field textarea {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  color: var(--text-main);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.7rem 0.8rem;
}
.field textarea { min-height: 10rem; resize: vertical; line-height: 1.7; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
}
.field [aria-invalid="true"] { border-color: #f87171; }
.field .error { font-size: 0.8rem; color: #f87171; min-height: 0; }
.field .error:empty { display: none; }

.consent { display: flex; gap: 0.6rem; align-items: flex-start; font-size: 0.9rem; color: var(--text-muted); }
.field .consent input {
  width: 1.1rem;
  height: 1.1rem;
  flex: none;
  padding: 0;
  margin-top: 0.3rem;
  accent-color: var(--accent-cyan);
}
.field label.consent { color: var(--text-muted); cursor: pointer; }

.privacy {
  font-size: 0.85rem;
  border-left: 2px solid var(--border-color);
  padding-left: 0.9rem;
}
.privacy p { font-size: 0.85rem; margin-bottom: 0.4rem; }

.submit {
  justify-self: start;
  font: inherit;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--bg-color);
  background: var(--accent-moon);
  border: none;
  border-radius: 6px;
  padding: 0.75rem 1.6rem;
  cursor: pointer;
}
.submit:disabled { opacity: 0.6; cursor: wait; }

.form-status { font-size: 0.9rem; }
.form-status:empty { display: none; }
.form-status.ok { color: var(--accent-moon); }
.form-status.ng { color: #f87171; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field[hidden] { display: none; }

/* 言語切り替え */
.lang {
  margin-left: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.2rem 0.6rem;
}
.lang:hover { color: var(--accent-moon); text-decoration: none; border-color: var(--accent-moon); }

/* 送信前の確認画面 */
.form[hidden], .confirm[hidden] { display: none; }
.confirm-list {
  display: grid;
  grid-template-columns: 10em minmax(0, 1fr);
  gap: 0.9rem 1.2rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.2rem 0 1.6rem;
  font-size: 0.95rem;
}
.confirm-list dt { color: var(--text-muted); }
.confirm-list dd { color: var(--text-main); white-space: pre-wrap; overflow-wrap: anywhere; }
.confirm-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.back {
  font: inherit;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-main);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.75rem 1.4rem;
  cursor: pointer;
}
.back:hover { border-color: var(--text-muted); }
.back:disabled { opacity: 0.6; cursor: wait; }
.form-status:focus { outline: none; }

@media (max-width: 480px) {
  .confirm-list { grid-template-columns: 1fr; gap: 0.2rem; padding: 1.2rem; }
  .confirm-list dd { margin-bottom: 0.8rem; }
  .confirm-list dd:last-child { margin-bottom: 0; }
}