/* ============================================================
   合同会社オウル — トップページ（案1c「あかるいフレンドリー」）
   Design tokens transcribed from the official handoff spec.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* Brand greens */
  --green: #2E8B63;          /* primary */
  --green-dark: #1E5C42;     /* logo / featured card / footer */
  --green-tint: #E9F4EE;     /* hero / steps / badge bg */
  --green-faint: #F7FAF8;    /* benefit & pricing card bg */
  --chip-bg: #F2F7F4;
  --chip-border: #D8E8DF;
  --card-border: #E5EEE8;
  --hero-badge-border: #BFDCCC;

  /* Accent */
  --amber: #F0B23E;          /* popular badge / final CTA */
  --amber-ink: #4A3510;

  /* Text */
  --ink: #22312A;            /* headings */
  --body: #57685E;           /* body text */
  --muted: #7B8A80;          /* helper / footer-ish grey */
  --nav-ink: #35443B;

  /* On dark surfaces */
  --on-dark-tint: #A9D4BE;
  --on-dark-soft: #E9F4EE;
  --footer-ink: #8FBCA4;

  --white: #FFFFFF;

  /* Layout */
  --container: 1200px;
  --pad-x: 48px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur: 0.2s;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-dark); }
h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--green); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 100;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---------- Layout helper ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
  width: 100%;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  border-radius: 14px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  white-space: nowrap;
  line-height: 1.2;
}
.btn--sm  { font-size: 15px; padding: 12px 26px; border-radius: 12px; }
.btn--lg  { font-size: 17px; padding: 16px 32px; }
.btn--xl  { font-size: 18px; padding: 18px 44px; }

.btn--primary { background: var(--green); color: #fff; }
.btn--primary:hover { background: var(--green-dark); color: #fff; transform: translateY(-1px); }

.btn--outline { background: #fff; color: var(--green); border-color: var(--green); }
.btn--outline:hover { background: var(--green); color: #fff; }

.btn--accent { background: var(--amber); color: var(--amber-ink); font-weight: 900; }
.btn--accent:hover { background: #e5a531; color: var(--amber-ink); transform: translateY(-1px); }

.btn--shadow { box-shadow: 0 6px 20px rgba(46, 139, 99, 0.3); }

.accent { color: var(--green); }

/* ---------- Image placeholders (斜線パターン) ---------- */
.ph {
  background: repeating-linear-gradient(45deg, #D8E8DF, #D8E8DF 12px, #CFE2D7 12px, #CFE2D7 24px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #5B7A69;
  font-weight: 700;
  text-align: center;
}
.ph__label { font-size: 15px; }
.ph--hero { width: 100%; height: 420px; border-radius: 24px; }
.hero__img { width: 100%; height: 420px; object-fit: cover; border-radius: 24px; display: block; }

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--card-border);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.logo { display: flex; align-items: center; }
.logo:hover { color: inherit; }
.logo__img { height: 54px; width: auto; display: block; }

.nav { display: flex; align-items: center; gap: 24px; }
.nav__link { font-size: 15px; font-weight: 700; color: var(--nav-ink); }
.nav__link:hover { color: var(--green); }

/* Hamburger (mobile only) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle__bar {
  width: 24px; height: 2px; background: var(--green-dark); border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

/* ---------- Sections ---------- */
.section { padding-top: 72px; padding-bottom: 72px; }
.section__title {
  font-size: 30px; font-weight: 900; color: var(--ink); text-align: center;
  line-height: 1.4;
}
.section__sub {
  margin-top: 8px; text-align: center; font-size: 15px; color: var(--muted);
}
.section__note {
  margin: 28px auto 0; max-width: 780px; text-align: center;
  font-size: 14px; line-height: 2; color: var(--muted);
}

/* ---------- Hero ---------- */
.hero { background: var(--green-tint); padding: 56px 0; }
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero__copy { display: flex; flex-direction: column; gap: 20px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  background: #fff; color: var(--green); font-size: 13px; font-weight: 700;
  padding: 7px 14px; border-radius: 8px; border: 1.5px solid var(--hero-badge-border);
}
.hero__title { font-size: 38px; line-height: 1.55; color: var(--ink); font-weight: 900; }
.hero__lead { font-size: 16px; line-height: 2; color: var(--body); }
.hero__actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }

/* ---------- お悩み共感 ---------- */
.worries .section__sub { margin-bottom: 36px; }
.chips {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 14px;
  max-width: 980px; margin: 0 auto;
}
.chip {
  background: var(--chip-bg); border: 1.5px solid var(--chip-border);
  border-radius: 999px; padding: 14px 24px; font-size: 15px; font-weight: 500; color: var(--nav-ink);
}

/* ---------- メリット ---------- */
.benefits { background: var(--green-faint); }
.benefits .section__title { margin-bottom: 36px; }
.benefits__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.card {
  background: #fff; border-radius: 20px; border: 1.5px solid var(--card-border);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.benefit {
  padding: 32px; display: flex; flex-direction: column; gap: 12px;
}
.benefit:hover, .plan:hover, .step:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(46, 139, 99, 0.15);
}
.tag {
  align-self: flex-start; background: var(--green-tint); color: var(--green);
  font-size: 13px; font-weight: 900; padding: 6px 12px; border-radius: 8px;
}
.card__title { font-size: 19px; font-weight: 700; color: var(--ink); }
.card__text { font-size: 14px; line-height: 1.9; color: var(--body); }

/* ---------- 料金プラン ---------- */
.pricing .section__sub { margin-bottom: 36px; }
.pricing__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start;
}
.plan {
  background: var(--green-faint); padding: 32px;
  display: flex; flex-direction: column; gap: 10px; position: relative;
}
.plan--featured {
  background: var(--green-dark); border-color: var(--green-dark);
}
.plan__badge {
  position: absolute; top: -14px; left: 24px;
  background: var(--amber); color: var(--amber-ink);
  font-size: 13px; font-weight: 900; padding: 5px 14px; border-radius: 999px;
}
.plan__name { font-size: 15px; font-weight: 700; color: var(--green); }
.plan--featured .plan__name { color: var(--on-dark-tint); }
.plan__price { display: flex; align-items: baseline; gap: 4px; }
.plan__amount { font-size: 40px; font-weight: 900; color: var(--ink); }
.plan--featured .plan__amount { color: #fff; }
.plan__unit { font-size: 15px; font-weight: 700; color: var(--muted); }
.plan--featured .plan__unit { color: var(--on-dark-tint); }
.plan__feats { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.plan__feats li {
  font-size: 14px; color: var(--nav-ink);
  border-top: 1px dashed var(--chip-border); padding-top: 10px;
}
.plan__feats li::before { content: "✓ "; }
.plan--featured .plan__feats li {
  color: var(--on-dark-soft); border-top-color: rgba(255, 255, 255, 0.25);
}

/* ---------- ご利用の流れ ---------- */
.steps { background: var(--green-tint); }
.steps .section__sub { margin-bottom: 40px; color: var(--body); }
.steps__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.step {
  padding: 28px 24px; display: flex; flex-direction: column; gap: 10px; border: 0;
}
.step__num {
  width: 44px; height: 44px; border-radius: 12px; background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 19px; font-weight: 900;
}
.step .card__text { font-size: 13px; }

/* ---------- 代表プロフィール ---------- */
.profile__inner {
  max-width: 760px; margin: 0 auto;
  padding-left: var(--pad-x); padding-right: var(--pad-x);
  text-align: center;
}
.profile__body { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.profile__role { font-size: 13px; font-weight: 700; color: var(--green); }
.profile__name { font-size: 26px; font-weight: 900; color: var(--ink); }
.profile__bio { font-size: 14px; line-height: 2; color: var(--body); }

/* ---------- CTA + お問い合わせフォーム ---------- */
.cta {
  background: var(--green-dark);
  padding: 64px 0;
}
.cta__inner { display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; }
.cta__title { font-size: 30px; font-weight: 900; color: #fff; line-height: 1.7; }
.cta__lead { font-size: 15px; color: var(--on-dark-tint); line-height: 1.9; }

/* フォーム（濃緑背景上の白カード） */
.hp { display: none !important; }
.form {
  width: 100%;
  max-width: 560px;
  margin-top: 16px;
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  text-align: left;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}
.form__row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form__label { font-size: 14px; font-weight: 700; color: var(--ink); }
.req {
  display: inline-block; margin-left: 6px; vertical-align: 1px;
  font-size: 11px; font-weight: 700; color: #C0392B;
  background: #FBEAE8; border-radius: 4px; padding: 2px 6px;
}
.form__input {
  font-family: inherit; font-size: 15px; color: var(--ink);
  background: #fff; border: 1.5px solid var(--chip-border); border-radius: 10px;
  padding: 12px 14px; width: 100%;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.form__input::placeholder { color: #AAB6AE; }
.form__input:focus {
  outline: none; border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(46, 139, 99, 0.15);
}
.form__textarea { resize: vertical; min-height: 120px; line-height: 1.7; }
.form__submit { width: 100%; margin-top: 6px; }
.form__status {
  margin-top: 14px; font-size: 14px; line-height: 1.7; text-align: center;
  display: none;
}
.form__status--ok  { display: block; color: var(--green-dark); font-weight: 700; }
.form__status--err { display: block; color: #C0392B; font-weight: 700; }

/* ---------- Footer ---------- */
.footer {
  background: var(--green-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 28px 0;
}
.footer__inner {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 32px;
  font-size: 12px; color: var(--footer-ink); text-align: center;
}
.footer__brand { font-weight: 700; }
.footer__inner a { color: var(--footer-ink); }
.footer__inner a:hover { color: #fff; }

/* ============================================================
   Responsive
   ============================================================ */

/* Tablet: ~900px 以下 → 主要グリッドを2カラムへ */
@media (max-width: 900px) {
  :root { --pad-x: 32px; }

  .hero__inner { grid-template-columns: 1fr; gap: 32px; }
  .hero__media { order: -1; }
  .ph--hero, .hero__img { height: 300px; }

  .benefits__grid { grid-template-columns: 1fr; }
  .pricing__grid { grid-template-columns: 1fr; }
  .plan--featured { margin-top: 14px; }
  .steps__grid { grid-template-columns: repeat(2, 1fr); }

  .hero__title { font-size: 32px; }

  /* ヘッダー：ハンバーガー化 */
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: #fff;
    border-bottom: 1px solid var(--card-border);
    padding: 12px var(--pad-x) 20px;
    box-shadow: 0 8px 24px rgba(46, 139, 99, 0.12);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  }
  .nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__link { padding: 12px 4px; }
  .nav .btn { margin-top: 8px; }
}

/* Phone: ~640px 以下 → すべて1カラム */
@media (max-width: 640px) {
  :root { --pad-x: 20px; }

  .section { padding-top: 56px; padding-bottom: 56px; }
  .hero { padding: 40px 0; }
  .hero__title { font-size: 27px; line-height: 1.5; }
  .section__title { font-size: 24px; }
  .plan__amount { font-size: 34px; }

  .steps__grid { grid-template-columns: 1fr; }

  .hero__actions .btn { flex: 1 1 auto; }
  .cta__info { gap: 12px 24px; }
  .logo__img { height: 44px; }
}