/* =========================================================
   練馬みらい税理士事務所 — デモサイト
   ※ 内容はすべて仮（たたき台）。実制作時に差し替え。
   ========================================================= */

:root {
  --navy: #1f3a5f;
  --navy-dark: #16273f;
  --navy-soft: #eef1f6;
  --gold: #a9884f;
  --ink: #2b2f36;
  --muted: #6b7280;
  --line: #e2e6ec;
  --bg: #ffffff;
  --bg-alt: #f5f6f8;
  --radius: 4px;
  --wrap: 1080px;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "MS PMincho", serif;
  --sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.9;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.5; color: var(--navy-dark); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.section { padding: 76px 0; }
.section--alt { background: var(--bg-alt); }

.section-head { text-align: center; margin-bottom: 48px; }
.section-head .en {
  display: block;
  font-family: var(--serif);
  letter-spacing: .18em;
  color: var(--gold);
  font-size: 13px;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.section-head h2 { font-size: 27px; margin: 0; }

.lead { font-size: 17px; color: var(--muted); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(1.2) blur(4px);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand { display: flex; flex-direction: column; line-height: 1.3; }
.brand strong { font-family: var(--serif); font-size: 19px; color: var(--navy-dark); font-weight: 600; }
.brand span { font-size: 10px; letter-spacing: .16em; color: var(--gold); }

.nav ul { list-style: none; display: flex; gap: 28px; margin: 0; padding: 0; }
.nav a { font-size: 14px; color: var(--ink); }
.nav a:hover { color: var(--navy); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--navy); border-bottom: 2px solid var(--gold); padding-bottom: 4px; }

.header-cta {
  background: var(--navy); color: #fff; font-size: 13px;
  padding: 10px 18px; border-radius: var(--radius);
}
.header-cta:hover { background: var(--navy-dark); text-decoration: none; }

.nav-toggle { display: none; border: 0; background: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy-dark); margin: 5px 0; transition: .2s; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--navy-soft), #fff);
  padding: 84px 0 72px;
}
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 33px; margin: 0 0 20px; letter-spacing: .02em; }
.hero p { font-size: 16px; color: var(--muted); margin: 0 0 28px; }
.hero-photo {
  aspect-ratio: 4 / 3; background: #d9dee7 url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="4"><rect width="4" height="4" fill="%23d9dee7"/><path d="M0 4L4 0" stroke="%23cbd2dd" stroke-width="1"/></svg>');
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: #8a94a4; font-size: 13px; font-family: var(--serif);
  border: 1px solid var(--line);
}

.btn {
  display: inline-block; background: var(--navy); color: #fff;
  padding: 14px 32px; border-radius: var(--radius); font-size: 15px;
}
.btn:hover { background: var(--navy-dark); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--navy); border: 1px solid var(--navy); }
.btn--ghost:hover { background: var(--navy); color: #fff; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Reasons ---------- */
.reasons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.reason {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 26px; text-align: center;
}
.reason .num { font-family: var(--serif); color: var(--gold); font-size: 14px; letter-spacing: .1em; }
.reason h3 { font-size: 18px; margin: 12px 0 10px; }
.reason p { font-size: 14px; color: var(--muted); margin: 0; }

/* ---------- Service cards ---------- */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; background: #fff;
}
.card h3 { font-size: 19px; margin: 0 0 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.card p { font-size: 14.5px; color: var(--muted); margin: 0 0 14px; }
.card ul { margin: 0; padding-left: 1.2em; font-size: 14px; color: var(--ink); }
.card ul li { margin-bottom: 6px; }

/* ---------- Table ---------- */
.price-table { width: 100%; border-collapse: collapse; font-size: 14.5px; background: #fff; }
.price-table caption { text-align: left; font-family: var(--serif); font-size: 17px; color: var(--navy-dark); margin-bottom: 12px; }
.price-table th, .price-table td { border: 1px solid var(--line); padding: 14px 16px; text-align: left; vertical-align: top; }
.price-table thead th { background: var(--navy); color: #fff; font-weight: 500; }
.price-table tbody th { background: var(--bg-alt); font-weight: 600; white-space: nowrap; }
.price-table .amount { white-space: nowrap; font-family: var(--serif); }
.note { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* ---------- Info table (about) ---------- */
.info-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.info-table th, .info-table td { border-bottom: 1px solid var(--line); padding: 16px 12px; text-align: left; }
.info-table th { width: 180px; color: var(--navy-dark); font-weight: 600; background: var(--bg-alt); }

/* ---------- Greeting ---------- */
.greeting { display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start; }
.greeting .portrait {
  aspect-ratio: 3 / 4; background: #d9dee7;
  border-radius: var(--radius); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  color: #8a94a4; font-size: 12px; font-family: var(--serif);
}
.greeting p { margin: 0 0 16px; }
.greeting .sign { font-family: var(--serif); font-size: 16px; color: var(--navy-dark); margin-top: 24px; }
.greeting .sign strong { font-size: 20px; margin-left: 8px; }

/* ---------- News list ---------- */
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li { border-bottom: 1px solid var(--line); }
.news-list a {
  display: grid; grid-template-columns: 130px 90px 1fr; gap: 20px; align-items: baseline;
  padding: 20px 4px; color: var(--ink);
}
.news-list a:hover { background: var(--bg-alt); text-decoration: none; }
.news-list time { color: var(--muted); font-size: 13px; font-family: var(--serif); }
.news-list .tag {
  font-size: 11px; color: var(--navy); border: 1px solid var(--navy);
  border-radius: 2px; padding: 2px 8px; text-align: center; align-self: center;
}
.news-list .ttl { font-size: 15px; }

/* ---------- Page hero (sub pages) ---------- */
.page-hero {
  background: var(--navy); color: #fff; padding: 56px 0; text-align: center;
}
.page-hero h1 { color: #fff; font-size: 28px; margin: 0 0 8px; }
.page-hero .en { color: rgba(255,255,255,.6); letter-spacing: .2em; font-size: 12px; font-family: var(--serif); }

.breadcrumb { font-size: 12px; color: var(--muted); padding: 14px 0; }
.breadcrumb a { color: var(--muted); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--navy), var(--navy-dark));
  color: #fff; text-align: center; padding: 60px 0;
}
.cta-band h2 { color: #fff; font-size: 24px; margin: 0 0 12px; }
.cta-band p { color: rgba(255,255,255,.8); margin: 0 0 26px; font-size: 15px; }
.cta-band .btn { background: #fff; color: var(--navy); }
.cta-band .btn:hover { background: var(--navy-soft); }
.cta-band .tel { font-family: var(--serif); font-size: 26px; color: #fff; display: block; margin-top: 18px; }
.cta-band .tel small { font-size: 13px; font-family: var(--sans); color: rgba(255,255,255,.7); }

/* ---------- Contact form ---------- */
.form { max-width: 680px; margin: 0 auto; }
.form .field { margin-bottom: 24px; }
.form label { display: block; font-size: 14px; font-weight: 600; color: var(--navy-dark); margin-bottom: 8px; }
.form label .req { color: #c0392b; font-size: 12px; margin-left: 6px; }
.form input, .form textarea, .form select {
  width: 100%; border: 1px solid #c8cfd9; border-radius: var(--radius);
  padding: 12px 14px; font-size: 15px; font-family: inherit; background: #fff;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: 2px solid var(--navy-soft); border-color: var(--navy); }
.form textarea { min-height: 160px; resize: vertical; }
.form .consent { font-size: 13px; color: var(--muted); display: flex; gap: 8px; align-items: flex-start; }
.form .consent input { width: auto; margin-top: 5px; }
.form .submit { text-align: center; margin-top: 12px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-dark); color: rgba(255,255,255,.75); font-size: 13px;
  padding: 52px 0 26px;
}
.site-footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; margin-bottom: 36px; }
.site-footer .brand strong { color: #fff; }
.site-footer .brand span { color: rgba(255,255,255,.55); }
.site-footer p { margin: 12px 0 0; line-height: 1.8; }
.site-footer h4 { color: #fff; font-size: 13px; font-family: var(--sans); margin: 0 0 14px; letter-spacing: .05em; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer ul li { margin-bottom: 9px; }
.site-footer a { color: rgba(255,255,255,.75); }
.site-footer a:hover { color: #fff; }
.site-footer .copy { border-top: 1px solid rgba(255,255,255,.15); padding-top: 20px; font-size: 12px; color: rgba(255,255,255,.5); }

.demo-ribbon {
  background: #b45309; color: #fff; text-align: center; font-size: 12px;
  padding: 7px 12px; letter-spacing: .04em;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-photo { order: -1; }
  .reasons { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .greeting { grid-template-columns: 1fr; }
  .greeting .portrait { max-width: 220px; }
  .site-footer .cols { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 720px) {
  .nav {
    position: fixed; inset: 72px 0 auto 0;
    background: #fff; border-bottom: 1px solid var(--line);
    transform: translateY(-100%); transition: transform .25s ease, visibility .25s;
    visibility: hidden;
    padding: 12px 0 20px;
    box-shadow: 0 12px 20px -12px rgba(22,39,63,.25);
  }
  .nav.open { transform: translateY(0); visibility: visible; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav ul li { border-bottom: 1px solid var(--line); }
  .nav ul li:last-child { border-bottom: 0; }
  .nav a { display: block; padding: 14px 24px; }
  .header-cta { display: none; }
  .nav-toggle { display: block; }
  .section { padding: 56px 0; }
  .hero h1 { font-size: 26px; }
  .news-list a { grid-template-columns: 1fr; gap: 4px; }
  .news-list .tag { justify-self: start; }
  .info-table th { width: 110px; }
}