/* Vesquela LP。ロゴの暖色（赤橙→黄）をアクセントに、白背景中心（仕様書 17.4）。ダークモード対応 */
:root {
  --bg: #ffffff;
  --bg-alt: #F7F7F5;
  --ink: #111827;
  --ink-soft: #4B5563;
  --line: #E5E7EB;
  --card: #ffffff;
  --orange: #FF4500;
  --amber: #FF9A00;
  --yellow: #FFD60A;
  --grad: linear-gradient(110deg, #FF4500 0%, #FF9A00 55%, #FFD60A 100%);
  --radius: 18px;
  --shadow: 0 12px 40px rgba(17, 24, 39, 0.08);
  --font: "Noto Sans JP", "Inter", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1116;
    --bg-alt: #151A21;
    --ink: #F3F4F6;
    --ink-soft: #A7B0BE;
    --line: #262D38;
    --card: #171C24;
    --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); line-height: 1.75; -webkit-font-smoothing: antialiased; }
html[lang="en"] body { font-family: "Inter", "Noto Sans JP", system-ui, sans-serif; }
img, video { max-width: 100%; display: block; }
/* 日本語の見出し・文を単語の途中で改行しない（文節で折り返す） */
h1, h2, h3, .lead, .sub, .answer p, summary { word-break: auto-phrase; }
a { color: inherit; }
.wrap { width: min(1120px, 100% - 32px); margin: 0 auto; }
.narrow { width: min(720px, 100% - 32px); }
.center { text-align: center; }

/* ナビ */
.nav { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 20px; letter-spacing: 0.01em; font-family: "Inter", sans-serif; }
.nav-links { display: flex; align-items: center; gap: 18px; font-size: 14px; }
.nav-links a:not(.btn) { text-decoration: none; color: var(--ink-soft); }
.nav-links a:not(.btn):hover { color: var(--ink); }
.lang { border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 999px; padding: 4px 10px; font: 600 12px/1 "Inter", sans-serif; cursor: pointer; }
@media (max-width: 760px) { .nav-links a:not(.btn) { display: none; } }

/* ボタン */
.btn { display: inline-block; padding: 14px 26px; border-radius: 999px; background: var(--grad); color: #1a0f00; font-weight: 900; text-decoration: none; border: 0; cursor: pointer; font-size: 16px; box-shadow: 0 8px 24px rgba(255, 90, 0, 0.28); transition: transform .15s ease, box-shadow .15s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(255, 90, 0, 0.35); }
.btn-small { padding: 8px 16px; font-size: 14px; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); box-shadow: none; }
.btn-ghost:hover { box-shadow: none; border-color: var(--amber); }

/* ヒーロー */
.hero { padding: 72px 0 56px; background: radial-gradient(1200px 500px at 85% -10%, rgba(255, 154, 0, 0.16), transparent 60%), var(--bg); }
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; gap: 32px; } .hero { padding-top: 40px; } }
.eyebrow { margin: 0; font-weight: 900; font-size: 20px; color: var(--orange); letter-spacing: 0.04em; }
h1 { margin: 4px 0 8px; font: 800 clamp(52px, 8vw, 92px)/1.02 "Inter", sans-serif; letter-spacing: -0.02em; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(22px, 2.6vw, 30px); font-weight: 900; line-height: 1.5; margin: 12px 0; }
.sub { color: var(--ink-soft); font-size: 16px; margin: 0 0 24px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.note { color: var(--ink-soft); font-size: 13px; margin-top: 14px; }
.hero-video video { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); background: #000; aspect-ratio: 16 / 9; }
.caption { font-size: 13px; color: var(--ink-soft); margin-top: 10px; }

/* セクション */
.section { padding: 88px 0; }
.section.alt, .band { background: var(--bg-alt); }
.band { padding: 64px 0; }
h2 { font-size: clamp(26px, 3.2vw, 36px); line-height: 1.4; margin: 0 0 24px; font-weight: 900; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .two { grid-template-columns: 1fr; gap: 20px; } }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { padding-left: 32px; position: relative; color: var(--ink-soft); }
.checks li::before { content: "✕"; position: absolute; left: 0; top: 0; width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; background: color-mix(in srgb, var(--orange) 14%, transparent); color: var(--orange); font-size: 12px; font-weight: 900; margin-top: 4px; }
.answer p { font-size: 18px; font-weight: 700; margin: 0; padding: 28px; border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow); border-left: 6px solid; border-image: var(--grad) 1; }

/* しくみ */
.steps { list-style: none; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: s; }
@media (max-width: 1000px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.steps li { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.steps h3 { margin: 10px 0 6px; font-size: 17px; }
.steps p { margin: 0; font-size: 14px; color: var(--ink-soft); }
.num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--grad); color: #1a0f00; font: 800 16px "Inter", sans-serif; }

/* できること */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 32px; }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .cards { grid-template-columns: 1fr; } }
.card { padding: 26px; border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow); }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--ink-soft); font-size: 15px; }

/* 先行登録 */
.cta-band { background: radial-gradient(900px 400px at 50% 0%, rgba(255, 154, 0, 0.18), transparent 70%), var(--bg-alt); }
.form { display: grid; gap: 16px; margin-top: 24px; padding: 28px; border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow); }
.form label { display: grid; gap: 6px; font-weight: 700; font-size: 14px; }
.form input[type="email"], .form select { font: inherit; padding: 12px 14px; border-radius: 12px; border: 1.5px solid var(--line); background: var(--bg); color: var(--ink); }
.form input:focus, .form select:focus { outline: none; border-color: var(--amber); }
.form .agree { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.form .btn { justify-self: start; }
.form-msg { margin: 0; font-size: 14px; min-height: 1.5em; }
.form-msg.ok { color: #0F8A4C; }
.form-msg.err { color: #D23B1E; }

/* よくある質問 */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 700; }
details p { color: var(--ink-soft); margin: 10px 0 0; }

.footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: 13px; color: var(--ink-soft); }
.foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* プライバシーポリシー */
.doc { padding: 56px 0 88px; }
.doc h1 { font: 900 32px/1.4 var(--font); }
.doc h2 { font-size: 20px; margin: 32px 0 8px; }
.doc p, .doc li { color: var(--ink-soft); }