/* =========================================================
   司法予備校サイト ― デザインシステム v2
   ネイビー × シアン / サンセリフ太字 / 左揃え主体 / モダン
   参考トーン: be-a-lawyer.com
   ========================================================= */

:root{
  --navy:     #0d2540;
  --navy-2:   #143a63;
  --navy-3:   #19527f;
  --ink:      #16222e;
  --gray:     #51606c;
  --gray-2:   #7a8893;
  --accent:   #13b9cf;   /* シアン */
  --accent-d: #0f9fb3;
  --accent-soft:rgba(19,185,207,0.10);
  --bg:       #ffffff;
  --bg-soft:  #f1f6fa;
  --line:     #e4ebf1;
  --line-strong:#d3dee7;
  --line-color:#06C755; /* LINE緑（互換） */

  --display:"Manrope","Noto Sans JP",sans-serif;
  --sans:"Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif;
  /* 互換: 旧--serifを参照する箇所のフォールバック */
  --serif:"Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif;

  --max:1120px;
  --narrow:780px;
  --ease:cubic-bezier(0.4,0,0.1,1);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  line-height:1.85;
  letter-spacing:0.02em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
::selection{background:var(--accent);color:#06303a;}

/* ---------- ナビ ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:0.9rem clamp(1.3rem,4vw,3rem);
  background:rgba(255,255,255,0.9);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav__logo{font-family:var(--display);font-weight:800;font-size:1.25rem;color:var(--navy);letter-spacing:0.02em;}
.nav__right{display:flex;align-items:center;gap:2rem;}
.nav__links{display:flex;list-style:none;gap:1.8rem;}
.nav__links a{
  color:var(--gray);font-size:0.92rem;font-weight:500;position:relative;padding:0.3em 0;
  transition:color 0.2s;
}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width 0.3s var(--ease);}
.nav__links a:hover,.nav__links a[aria-current="page"]{color:var(--navy);}
.nav__links a:hover::after,.nav__links a[aria-current="page"]::after{width:100%;}
.nav__auth{display:flex;align-items:center;gap:0.6rem;}
.btn--sm{padding:0.6em 1.2em;font-size:0.84rem;}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px;}
.nav__toggle span{width:24px;height:2px;background:var(--navy);transition:transform 0.3s var(--ease),opacity 0.3s;}
.nav__toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav__toggle.open span:nth-child(2){opacity:0;}
.nav__toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- ヒーロー（ネイビー・左揃え）---------- */
.hero{
  position:relative;
  background:
    radial-gradient(60% 90% at 88% 10%, rgba(19,185,207,0.28) 0%, transparent 55%),
    linear-gradient(135deg,#0c2138 0%,#143a63 55%,#19527f 100%);
  color:#fff;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-12%;bottom:-40%;width:48vw;height:48vw;max-width:640px;max-height:640px;
  background:radial-gradient(circle,rgba(19,185,207,0.18),transparent 65%);pointer-events:none;
}
.hero__inner{
  position:relative;z-index:1;
  max-width:var(--max);margin:0 auto;
  padding:clamp(4rem,9vw,7rem) clamp(1.3rem,4vw,3rem) clamp(3.5rem,7vw,5.5rem);
  text-align:left;
}
.hero__eyebrow{
  font-family:var(--display);font-weight:700;
  font-size:0.8rem;letter-spacing:0.28em;text-transform:uppercase;color:var(--accent);
  display:inline-flex;align-items:center;gap:0.7rem;margin-bottom:1.3rem;
}
.hero__eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);}
.hero__title{
  font-family:var(--sans);
  font-size:clamp(2.1rem,5.6vw,3.6rem);
  font-weight:900;line-height:1.32;color:#fff;letter-spacing:0.01em;
  margin-bottom:1.4rem;
}
.hero__title .accent{color:var(--accent);}
.hero__lead{
  font-size:clamp(0.98rem,2vw,1.1rem);color:rgba(255,255,255,0.82);line-height:1.9;
  max-width:40rem;margin:0 0 2rem;
}

/* バッジ（実績ピル） */
.badges{display:flex;justify-content:flex-start;gap:0.7rem;flex-wrap:wrap;margin-bottom:2.2rem;}
.badge{
  border:1px solid rgba(255,255,255,0.28);background:rgba(255,255,255,0.08);
  padding:0.5rem 1.2rem;font-size:0.82rem;color:#fff;letter-spacing:0.02em;border-radius:999px;
  backdrop-filter:blur(4px);
}

/* ---------- ボタン ---------- */
.cta{display:flex;justify-content:flex-start;gap:1rem;flex-wrap:wrap;}
.cta--center{justify-content:flex-start;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:0.5em;
  padding:0.95rem 2rem;font-size:0.96rem;font-weight:700;font-family:var(--sans);
  letter-spacing:0.04em;border-radius:10px;cursor:pointer;border:0;text-align:center;
  transition:background 0.2s,color 0.2s,transform 0.18s,box-shadow 0.2s,border-color 0.2s;
}
.btn--primary{background:var(--accent);color:#06303a;box-shadow:0 8px 20px rgba(19,185,207,0.28);}
.btn--primary:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px);}
.btn--ghost{border:1.5px solid var(--line-strong);color:var(--navy);background:#fff;}
.btn--ghost:hover{border-color:var(--navy);background:var(--bg-soft);}
.btn--line{background:var(--line-color);color:#fff;}
.btn--line:hover{filter:brightness(0.95);transform:translateY(-2px);}
.btn--full{display:flex;width:100%;margin-top:0.8rem;}
.btn.is-disabled{background:#c2ccd6;color:#fff;cursor:default;pointer-events:none;box-shadow:none;}
/* ヒーロー上のボタン配色 */
.hero .btn--ghost{border-color:rgba(255,255,255,0.55);color:#fff;background:transparent;}
.hero .btn--ghost:hover{background:rgba(255,255,255,0.12);border-color:#fff;}

/* ---------- セクション ---------- */
.section{max-width:var(--max);margin:0 auto;padding:clamp(3.5rem,7vw,5.5rem) clamp(1.3rem,4vw,3rem);}
.section--narrow{max-width:var(--narrow);}
.section--cream{max-width:none;background:var(--bg-soft);}
.section--cream>*{max-width:var(--max);margin-left:auto;margin-right:auto;}
.section--narrow.section--cream>*{max-width:var(--narrow);}
.section__eyebrow{
  font-family:var(--display);font-weight:700;
  font-size:0.78rem;letter-spacing:0.26em;text-transform:uppercase;color:var(--accent-d);
  display:inline-flex;align-items:center;gap:0.6rem;margin-bottom:0.7rem;
}
.section__eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);}
.section__title{
  font-family:var(--sans);font-size:clamp(1.5rem,3.6vw,2.15rem);font-weight:800;color:var(--ink);
  line-height:1.4;margin-bottom:1.8rem;letter-spacing:0.01em;
}
.lead-center{text-align:left;color:var(--gray);max-width:44rem;margin:0 0 1.8rem;font-size:1rem;line-height:1.9;}

/* 帯（短答会員 訴求 / ネイビー） */
.band{
  background:
    radial-gradient(50% 120% at 90% 0%, rgba(19,185,207,0.25) 0%, transparent 60%),
    linear-gradient(120deg,#0d2540 0%,#16456f 100%);
  color:#fff;
}
.band__inner{max-width:var(--max);margin:0 auto;padding:clamp(2.8rem,6vw,4.2rem) clamp(1.3rem,4vw,3rem);text-align:left;}
.band__inner .section__eyebrow{color:var(--accent);text-align:left;}
.band__inner .section__title{color:#fff;}
.band__inner .lead-center{color:rgba(255,255,255,0.85);}
.band__inner .cta{justify-content:flex-start;}

/* 区切り */
.divider{height:1px;max-width:600px;margin:0;background:linear-gradient(90deg,var(--accent),transparent);}

/* ---------- 行カード（リンク一覧） ---------- */
.cards{display:grid;grid-template-columns:1fr;gap:0.8rem;}
.row-card{
  display:flex;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:1.2rem 1.5rem;font-size:1rem;font-weight:700;color:var(--ink);
  transition:border-color 0.2s,transform 0.2s,box-shadow 0.2s;
}
.row-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 10px 26px rgba(13,37,64,0.08);}
.row-card--disabled{color:var(--gray-2);background:var(--bg-soft);cursor:default;font-weight:600;}
.row-card--disabled:hover{border-color:var(--line);transform:none;box-shadow:none;}
.subj-status{margin-left:auto;margin-right:0.9rem;font-size:0.76rem;font-weight:600;color:var(--accent-d);background:var(--accent-soft);padding:0.25em 0.7em;border-radius:999px;}
.row-card--disabled .subj-status{color:var(--gray-2);background:#e9eef3;}
.chev{color:var(--accent);font-weight:700;}

/* 成績ランク画像 */
.rank-figure{max-width:620px;margin:1.6rem 0 0;}
.rank-figure img{width:100%;height:auto;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 14px 36px rgba(13,37,64,0.10);}
.rank-figure figcaption{margin-top:0.7rem;font-size:0.82rem;color:var(--gray-2);}

/* ---------- 講座カード ---------- */
.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.3rem;}
.course{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:1.7rem;transition:border-color 0.2s,transform 0.2s,box-shadow 0.2s;
}
.course:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 16px 38px rgba(13,37,64,0.10);}
.course__name{font-family:var(--sans);font-size:1.22rem;font-weight:800;margin:0.5rem 0 0.6rem;}
.course__desc{color:var(--gray);font-size:0.92rem;line-height:1.85;flex:1;}
.course__price{color:var(--navy);font-weight:800;font-size:0.95rem;margin:1.1rem 0 0.6rem;}
.course__more{color:var(--accent-d);font-size:0.86rem;font-weight:700;letter-spacing:0.04em;}

/* タグ */
.tags{display:flex;gap:0.5rem;flex-wrap:wrap;margin-bottom:0.4rem;}
.tag{
  font-size:0.68rem;letter-spacing:0.1em;color:var(--accent-d);background:var(--accent-soft);
  border-radius:999px;padding:0.25em 0.85em;font-weight:700;
}

/* 見出しブロック */
.block-title{
  font-family:var(--sans);font-size:1.2rem;font-weight:800;color:var(--ink);
  margin:2.4rem 0 1rem;padding-bottom:0.6rem;border-bottom:2px solid var(--line);
}

/* チェックリスト */
.checks{list-style:none;display:grid;gap:0.6rem;}
.checks li{position:relative;padding-left:1.9rem;color:var(--gray);font-size:0.95rem;line-height:1.8;}
.checks li::before{
  content:"";position:absolute;left:0.2rem;top:0.6em;width:0.7rem;height:0.4rem;
  border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg);
}

/* チップ */
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:0.6rem;}
.chips li{
  border:1px solid var(--line);background:#fff;border-radius:8px;
  padding:0.5rem 1.1rem;font-size:0.9rem;color:var(--ink);font-weight:500;
}

/* ---------- 料金カード ---------- */
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem;}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.9rem;
}
.price-card--feature{border:2px solid var(--accent);box-shadow:0 16px 40px rgba(19,185,207,0.14);}
.price-card--solo{max-width:540px;margin:0;}
.price-card__name{font-weight:800;font-size:1.02rem;color:var(--ink);}
.price-card__amount{font-family:var(--display);font-size:2.3rem;font-weight:800;color:var(--navy);margin:0.4rem 0;line-height:1.2;}
.price-card__unit{font-size:0.9rem;font-weight:600;color:var(--gray-2);margin-left:0.2em;}
.price-card__note{color:var(--gray);font-size:0.88rem;line-height:1.8;margin-bottom:1rem;}
.price-card__sub{color:var(--gray-2);font-size:0.8rem;line-height:1.8;margin-top:1rem;}
.price-card .checks{margin:1rem 0 1.4rem;}

/* 科目別 購入グリッド */
.subj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0.8rem;}
.subj{
  display:flex;align-items:center;gap:0.6rem;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:1rem 1.2rem;transition:border-color 0.2s,transform 0.2s,box-shadow 0.2s;
}
.subj:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 20px rgba(13,37,64,0.07);}
.subj>span:first-child{flex:1;font-weight:700;font-size:0.95rem;}
.subj__price{color:var(--gray-2);font-size:0.85rem;}

/* 注記 / 戻る */
.fineprint{color:var(--gray-2);font-size:0.8rem;line-height:1.85;margin-top:1.6rem;}
.fineprint a{color:var(--accent-d);text-decoration:underline;}
.backlink{margin-top:2rem;}
.backlink a{color:var(--accent-d);font-weight:700;font-size:0.9rem;}
.backlink a:hover{text-decoration:underline;}

/* パンくず */
.crumb{max-width:var(--max);margin:0 auto;padding:1.1rem clamp(1.3rem,4vw,3rem) 0;font-size:0.78rem;color:var(--gray-2);display:flex;flex-wrap:wrap;gap:0.5rem;align-items:center;}
.crumb a{color:var(--accent-d);}
.crumb a:hover{text-decoration:underline;}
.crumb__sep{color:var(--line-strong);}

/* プロフィール */
.profile{display:grid;grid-template-columns:auto 1fr;gap:1.6rem;align-items:start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.9rem;}
.profile__avatar{width:72px;height:72px;border-radius:50%;background:var(--bg-soft);border:1px solid var(--line);display:grid;place-items:center;font-size:2rem;}
.profile__role{font-family:var(--display);font-weight:800;color:var(--navy);margin-bottom:0.8rem;}

/* 特徴グリッド */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem;}
.feat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:1.7rem;transition:transform 0.2s,box-shadow 0.2s;}
.feat:hover{transform:translateY(-4px);box-shadow:0 16px 38px rgba(13,37,64,0.09);}
.feat__num{font-family:var(--display);font-size:1.4rem;font-weight:800;color:var(--accent);letter-spacing:0.04em;}
.feat__title{font-size:1.04rem;font-weight:800;margin:0.5rem 0 0.6rem;line-height:1.55;}
.feat__desc{color:var(--gray);font-size:0.88rem;line-height:1.85;}

/* 申込の流れ */
.steps{display:grid;gap:1rem;}
.step{display:grid;grid-template-columns:auto 1fr;gap:1.2rem;align-items:start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:1.4rem 1.6rem;}
.step__num{width:40px;height:40px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:800;}
.step__title{font-size:1rem;font-weight:800;margin-bottom:0.2rem;}
.step__desc{color:var(--gray);font-size:0.9rem;}

/* 本文 */
.prose{color:var(--gray);font-size:0.95rem;line-height:1.95;}

/* フォーム */
.form{display:grid;gap:1.1rem;background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.9rem;margin-top:1.6rem;}
.form label{display:grid;gap:0.4rem;font-size:0.88rem;font-weight:700;color:var(--ink);}
.form input,.form textarea{
  font-family:inherit;font-size:0.95rem;color:var(--ink);
  border:1px solid var(--line-strong);border-radius:10px;padding:0.8rem 0.95rem;background:#fff;width:100%;
}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}

/* ---------- フッター（ネイビー） ---------- */
.site-footer{border-top:0;padding:clamp(2.8rem,6vw,3.8rem) clamp(1.3rem,4vw,3rem) 2.6rem;text-align:left;background:var(--navy);}
.site-footer__brand{font-family:var(--display);font-weight:800;color:#fff;letter-spacing:0.04em;margin-bottom:1.2rem;font-size:1.15rem;}
.site-footer__nav{display:flex;flex-wrap:wrap;justify-content:flex-start;gap:1.4rem;margin-bottom:1rem;}
.site-footer__nav a{color:rgba(255,255,255,0.72);font-size:0.84rem;letter-spacing:0.02em;transition:color 0.2s;}
.site-footer__nav a:hover{color:var(--accent);}
.site-footer__copy{color:rgba(255,255,255,0.45);font-size:0.76rem;letter-spacing:0.04em;margin-top:0.8rem;}

/* ---------- レスポンシブ ---------- */
@media (max-width:860px){
  .nav__toggle{display:flex;z-index:60;}
  .nav__right{
    position:fixed;inset:0 0 0 auto;width:min(82vw,330px);
    flex-direction:column;align-items:stretch;gap:0;padding:5rem 1.6rem 1.6rem;
    background:#fff;box-shadow:-12px 0 44px rgba(0,0,0,0.12);
    transform:translateX(100%);transition:transform 0.35s var(--ease);overflow-y:auto;
  }
  .nav__right.open{transform:none;}
  .nav__links{flex-direction:column;gap:0;}
  .nav__links li{border-bottom:1px solid var(--line);}
  .nav__links a{display:block;padding:1rem 0;font-size:1rem;}
  .nav__auth{flex-direction:column;align-items:stretch;gap:0.7rem;margin-top:1.4rem;}
  .nav__auth .btn{width:100%;}
  .feat-grid{grid-template-columns:1fr 1fr;}
  .course-grid{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .feat-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;}
  .subj-grid{grid-template-columns:1fr;}
  .cta{flex-direction:column;align-items:stretch;}
  .cta .btn{width:100%;}
  .profile{grid-template-columns:1fr;}
  .profile__avatar{margin:0;}
}