/* =========================================================
   株式会社Bright Forward  style.css
   色・文字・余白は :root の変数でまとめて変更できます
   ========================================================= */
:root {
  --paper:   #F6F7F4;  /* 背景 */
  --white:   #FFFFFF;
  --ink:     #1D2830;  /* 本文 */
  --navy:    #20435A;  /* メインカラー */
  --navy-dk: #173246;
  --muted:   #5D6A72;  /* 補足文字 */
  --line:    #D8DDDB;  /* 罫線 */
  --dawn:    #E3A72F;  /* アクセント（夜明けの光） */
  --dawn-lt: #FBF1DC;

  --font-serif: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans:  "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;

  --container: 1080px;
  --gutter: clamp(20px, 5vw, 40px);
  --section-y: clamp(72px, 11vw, 128px);
  --header-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .03em;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "palt" 0;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

:focus-visible { outline: 2px solid var(--dawn); outline-offset: 3px; border-radius: 2px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.pc-only { display: none; }
@media (min-width: 768px) { .pc-only { display: inline; } }

/* ---------- ボタン・リンク ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  /* 画面幅に合わせて少しずつ小さく（PC 15px・高さ52px → スマホ 約13.6px・高さ44px） */
  min-height: clamp(44px, 40px + 1vw, 52px);
  padding: 0 clamp(18px, 3vw, 28px);
  font-weight: 500; font-size: clamp(.85rem, .78rem + .3vw, .95rem); text-decoration: none;
  border: 1px solid var(--navy); border-radius: 3px;
  transition: background-color .2s, color .2s;
}
.btn-primary { background: var(--navy); color: var(--white); }
.btn-primary:hover { background: var(--navy-dk); }
.btn-ghost { color: var(--navy); background: transparent; }
.btn-ghost:hover { background: var(--white); }

.text-link {
  display: inline-flex; align-items: center; gap: .5em;
  font-weight: 500; color: var(--navy); text-decoration: none;
  padding: 6px 0; border-bottom: 1px solid var(--navy);
}
.text-link:hover { color: var(--navy-dk); border-color: var(--dawn); }

/* 未設定リンク（script.js で付与） */
.is-placeholder { cursor: not-allowed; }
.placeholder-badge {
  display: inline-block; margin-left: .6em; padding: 0 .55em;
  font-size: .68rem; font-weight: 500; line-height: 1.7; letter-spacing: .02em;
  color: #8A5A00; background: var(--dawn-lt); border: 1px dashed var(--dawn); border-radius: 2px;
  vertical-align: middle; white-space: nowrap;
}
.tbd {
  display: inline-block; margin-left: .4em; padding: 0 .55em;
  font-size: .8rem; color: #8A5A00; background: var(--dawn-lt); border: 1px dashed var(--dawn); border-radius: 2px;
}

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 247, 244, .92);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 22px; height: 22px; border-radius: 50%; background: var(--navy); position: relative; overflow: hidden; }
.brand-mark::after { content: ""; position: absolute; left: 0; right: 0; bottom: 6px; height: 2px; background: var(--dawn); }
.brand-text { font-family: var(--font-serif); font-weight: 700; font-size: 1.15rem; letter-spacing: .04em; color: var(--navy); }
.brand-logo { height: 32px; width: auto; }

.site-nav ul { display: flex; gap: 28px; align-items: center; }
.site-nav a { text-decoration: none; font-size: .9rem; color: var(--ink); padding: 6px 0; }
.site-nav a:hover { color: var(--navy); }
.site-nav .nav-contact { padding: 8px 18px; border: 1px solid var(--navy); border-radius: 3px; color: var(--navy); }
.site-nav .nav-contact:hover { background: var(--navy); color: var(--white); }

.nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-toggle {
    display: block; position: relative; width: 44px; height: 44px;
    background: none; border: 0; cursor: pointer; margin-right: -10px;
  }
  .nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
    position: absolute; left: 11px; width: 22px; height: 1.5px; background: var(--ink); content: ""; transition: transform .25s, top .25s, background-color .25s;
  }
  .nav-toggle-bar { top: 21px; }
  .nav-toggle-bar::before { left: 0; top: -7px; }
  .nav-toggle-bar::after { left: 0; top: 7px; }
  .nav-open .nav-toggle-bar { background: transparent; }
  .nav-open .nav-toggle-bar::before { top: 0; transform: rotate(45deg); }
  .nav-open .nav-toggle-bar::after { top: 0; transform: rotate(-45deg); }

  .site-nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 28px;
    display: none;
  }
  .nav-open .site-nav { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav li { border-bottom: 1px solid var(--line); }
  .site-nav li:last-child { border-bottom: 0; padding-top: 20px; }
  .site-nav a { display: block; padding: 16px 0; font-size: 1rem; }
  .site-nav .nav-contact { text-align: center; padding: 14px; }
}

/* ---------- ヒーロー ---------- */
.hero { padding: clamp(64px, 12vw, 140px) 0 clamp(72px, 11vw, 128px); }
.hero-company { font-size: .95rem; color: var(--muted); margin-bottom: 20px; }
.hero-title {
  font-family: var(--font-serif); font-weight: 600;
  /* 1行固定：画面幅から逆算して文字サイズを決める（15文字＋字間で約16.5em分）
     コピーの文字数を変えたら 16.5 を「文字数＋1.5」程度に調整 */
  font-size: min(4.4rem, calc((min(100vw, var(--container)) - 2 * var(--gutter)) / 16.5));
  line-height: 1.3; letter-spacing: .06em; color: var(--navy);
  white-space: nowrap;
}

/* 考える → 言葉にする → 伝える の線（サイトで唯一の演出） */
.forward-line {
  position: relative;
  display: grid; grid-template-columns: repeat(4, 1fr);
  max-width: 760px; margin: clamp(40px, 6vw, 56px) 0 clamp(32px, 5vw, 44px);
  padding-top: 22px;
  font-family: var(--font-serif); font-weight: 600; font-size: clamp(.95rem, 2.4vw, 1.1rem); color: var(--ink);
}
.forward-line::before {
  content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 100%;
  background: linear-gradient(90deg, var(--navy) 0%, var(--dawn) 100%);
  transform-origin: left center; transform: scaleX(1);
}
.forward-line li { position: relative; padding-right: 8px; }
.forward-line li::before {
  content: ""; position: absolute; top: -27px; left: 0;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--navy);
}
.forward-line li:last-child::before { background: var(--dawn); border-color: var(--dawn); }

.js .forward-line::before { transform: scaleX(0); }
.js .forward-line li { opacity: 0; }
.is-ready .forward-line::before { animation: draw 1.4s cubic-bezier(.6,.05,.25,1) .3s forwards; }
.is-ready .forward-line li { animation: appear .5s ease forwards; }
.is-ready .forward-line li:nth-child(1) { animation-delay: .35s; }
.is-ready .forward-line li:nth-child(2) { animation-delay: .75s; }
.is-ready .forward-line li:nth-child(3) { animation-delay: 1.15s; }
.is-ready .forward-line li:nth-child(4) { animation-delay: 1.55s; }
@keyframes draw { to { transform: scaleX(1); } }
@keyframes appear { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .js .forward-line::before { transform: scaleX(1); animation: none !important; }
  .js .forward-line li { opacity: 1; animation: none !important; }
  html { scroll-behavior: auto; }
}

.hero-lead { max-width: 36em; font-size: clamp(1rem, 2.2vw, 1.1rem); line-height: 2; color: var(--ink); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

/* ---------- セクション共通 ---------- */
.section { padding: var(--section-y) 0; }
.section-white { background: var(--white); }
.section-compact { padding: clamp(56px, 8vw, 88px) 0; }
.section-title {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.6rem, 3.6vw, 2.2rem); line-height: 1.5; letter-spacing: .06em; color: var(--navy);
}
.section-title-sm { font-size: clamp(1.35rem, 3vw, 1.7rem); }
.section-intro { max-width: 640px; margin-bottom: clamp(40px, 6vw, 64px); }
.section-intro .section-title { margin-bottom: 16px; }
.section-intro p { color: var(--muted); }

.split { display: grid; gap: 28px; }
@media (min-width: 900px) {
  .split { grid-template-columns: 280px 1fr; gap: 64px; }
}
.split-body { max-width: 640px; }
.split-body p + p { margin-top: 1.2em; }
.lead {
  font-family: var(--font-serif); font-weight: 500;
  font-size: clamp(1.15rem, 2.6vw, 1.35rem); line-height: 1.9; color: var(--navy);
  margin-bottom: 1.4em;
}

/* ---------- 実践の繰り返し ---------- */
.practice { margin-top: clamp(56px, 8vw, 88px); padding-top: clamp(40px, 6vw, 56px); border-top: 1px solid var(--line); }
.practice-title { font-family: var(--font-serif); font-weight: 600; font-size: 1.15rem; color: var(--ink); margin-bottom: 28px; }
.practice-steps { display: grid; gap: 0; counter-reset: step; }
.practice-steps li {
  counter-increment: step;
  position: relative; padding: 0 0 26px 52px;
}
.practice-steps li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--font-serif); font-weight: 600; font-size: .95rem;
  color: var(--navy); background: var(--white); border: 1px solid var(--navy);
}
.practice-steps li::after {
  content: ""; position: absolute; left: 17px; top: 38px; bottom: 4px; width: 1px; background: var(--line);
}
.practice-steps li:last-child::after { display: none; }
.practice-steps li:last-child::before { background: var(--dawn-lt); border-color: var(--dawn); }
.step-name { display: block; font-weight: 700; line-height: 1.6; padding-top: 4px; }
.step-desc { display: block; font-size: .9rem; color: var(--muted); line-height: 1.8; }

@media (min-width: 900px) {
  .practice-steps { grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .practice-steps li { padding: 52px 0 0 0; }
  .practice-steps li::after { left: 42px; right: -18px; top: 17px; bottom: auto; width: auto; height: 1px; }
}

/* ---------- 事業内容 ---------- */
.biz {
  display: grid; gap: 24px;
  padding: clamp(36px, 5vw, 52px) 0;
  border-top: 1px solid var(--line);
}
.biz:last-child { border-bottom: 1px solid var(--line); }
@media (min-width: 900px) {
  .biz { grid-template-columns: 360px 1fr; gap: 64px; }
}
.biz-icon {
  width: 40px; height: 40px; margin-bottom: 16px;
  fill: none; stroke: var(--navy); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
}
.biz-title {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.3rem, 2.8vw, 1.55rem); line-height: 1.5; color: var(--navy);
}
.biz-title span { display: block; font-family: var(--font-sans); font-weight: 500; font-size: .9rem; color: var(--muted); margin-top: 4px; letter-spacing: .04em; }
.biz-lead { margin-top: 14px; font-weight: 500; line-height: 1.8; }
.biz-body { max-width: 620px; }
.biz-body p + p { margin-top: 1em; }
.biz-subhead { margin: 26px 0 10px; font-size: .85rem; font-weight: 700; color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags li {
  font-size: .85rem; line-height: 1.6; padding: 4px 12px;
  background: var(--paper); border-radius: 2px; color: var(--ink);
}
.biz-links { display: flex; flex-wrap: wrap; gap: 8px 28px; margin-top: 28px; }

/* ---------- 代表者 ---------- */
.rep { display: grid; gap: 36px; margin-top: clamp(36px, 5vw, 56px); }
@media (min-width: 900px) {
  .rep { grid-template-columns: 320px 1fr; gap: 64px; align-items: start; }
}
.rep-photo {
  position: relative; aspect-ratio: 4 / 5; max-width: 320px;
  background: #E7EAE8; border-radius: 3px; overflow: hidden;
}
.rep-photo img { width: 100%; height: 100%; object-fit: cover; }
.photo-placeholder {
  display: none; position: absolute; inset: 0;
  place-items: center; text-align: center;
  font-size: .85rem; color: var(--muted); line-height: 1.8;
}
.rep-photo.is-missing img { display: none; }
.rep-photo.is-missing .photo-placeholder { display: grid; }

.rep-body { max-width: 640px; }
.rep-role { font-size: .9rem; color: var(--muted); }
.rep-name { font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.6rem, 3.6vw, 2rem); letter-spacing: .12em; color: var(--navy); line-height: 1.5; }
.rep-sub { font-size: .9rem; color: var(--muted); margin-bottom: 24px; }
.rep-body > p:not(.rep-role):not(.rep-name):not(.rep-sub) + p { margin-top: 1em; }
.rep-facts { margin-top: 32px; border-top: 1px solid var(--line); }
.rep-facts > div { display: grid; gap: 2px; padding: 14px 0; border-bottom: 1px solid var(--line); }
@media (min-width: 600px) { .rep-facts > div { grid-template-columns: 9.5em 1fr; gap: 16px; } }
.rep-facts dt { font-size: .85rem; font-weight: 700; color: var(--muted); }
.rep-facts dd { font-size: .95rem; }

/* ---------- サービス一覧 ---------- */
.service-list { display: grid; gap: 12px; }
@media (min-width: 640px) { .service-list { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .service-list { grid-template-columns: repeat(3, 1fr); } }
.service-list a {
  display: flex; flex-direction: column; gap: 4px; height: 100%;
  padding: 22px 48px 22px 22px; position: relative;
  text-decoration: none; border: 1px solid var(--line); border-radius: 3px; background: var(--white);
  transition: border-color .2s;
}
.service-list a::after {
  content: ""; position: absolute; right: 22px; top: 50%;
  width: 9px; height: 9px; margin-top: -5px;
  border-top: 1.5px solid var(--navy); border-right: 1.5px solid var(--navy); transform: rotate(45deg);
}
.service-list a:hover { border-color: var(--navy); }
.service-list a.is-placeholder:hover { border-color: var(--line); }
.svc-name { font-weight: 700; color: var(--navy); }
.svc-desc { font-size: .85rem; color: var(--muted); line-height: 1.7; }

/* ---------- 発信メディア ---------- */
.media { display: grid; gap: 24px; }
@media (min-width: 900px) { .media { grid-template-columns: 280px 1fr; gap: 64px; align-items: center; } }
.media-note { font-size: .9rem; color: var(--muted); margin-top: 4px; }
.media-list { display: flex; flex-wrap: wrap; gap: 10px; }
.media-list a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px;
  font-size: .9rem; font-weight: 500; text-decoration: none; color: var(--ink);
  border: 1px solid var(--line); border-radius: 22px; background: var(--white);
}
.media-list a:hover { border-color: var(--navy); color: var(--navy); }

/* ---------- 会社概要 ---------- */
.company-table { border-top: 1px solid var(--line); }
.company-table > div { display: grid; gap: 4px; padding: 20px 0; border-bottom: 1px solid var(--line); }
@media (min-width: 600px) { .company-table > div { grid-template-columns: 8em 1fr; gap: 24px; } }
.company-table dt { font-weight: 700; font-size: .9rem; color: var(--muted); }
.company-table .sub { font-size: .85rem; color: var(--muted); }
.plain-list li { position: relative; padding-left: 1.1em; }
.plain-list li::before { content: ""; position: absolute; left: 0; top: .85em; width: 6px; height: 1px; background: var(--muted); }
.plain-list li + li { margin-top: 4px; }

/* ---------- お問い合わせ ---------- */
.contact { background: var(--navy); color: var(--white); }
.contact .section-title { color: var(--white); }
.contact-lead { margin-top: 16px; max-width: 36em; color: rgba(255,255,255,.85); }
.contact-options { display: grid; gap: 14px; margin-top: 40px; max-width: 760px; }
@media (min-width: 700px) { .contact-options { grid-template-columns: 1fr 1fr; } }
.contact-card {
  display: flex; flex-direction: column; gap: 4px;
  padding: 24px; text-decoration: none; color: var(--white);
  border: 1px solid rgba(255,255,255,.35); border-radius: 3px;
  transition: background-color .2s, border-color .2s;
}
.contact-card:hover { background: rgba(255,255,255,.06); border-color: var(--dawn); }
.contact-card.is-placeholder:hover { background: none; border-color: rgba(255,255,255,.35); }
.contact-name { font-weight: 700; font-size: 1.05rem; }
.contact-desc { font-size: .85rem; color: rgba(255,255,255,.75); word-break: break-all; }
.contact .tbd { margin-left: 0; }

/* ---------- フッター ---------- */
.site-footer { background: var(--navy-dk); color: rgba(255,255,255,.8); padding: 40px 0; font-size: .85rem; }
.footer-inner { display: grid; gap: 20px; }
@media (min-width: 800px) { .footer-inner { grid-template-columns: 1fr auto; align-items: end; } }
.footer-name { font-family: var(--font-serif); font-weight: 600; font-size: 1rem; color: var(--white); }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--white); text-decoration: underline; }
.copyright { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.15); font-size: .78rem; color: rgba(255,255,255,.6); }
.site-footer .placeholder-badge { display: none; }

/* 英字の社名を途中で折り返さない */
.nowrap { white-space: nowrap; }
@media (min-width: 900px) {
  .split { grid-template-columns: 300px 1fr; }
  .split-head .section-title { font-size: clamp(1.6rem, 2.6vw, 1.9rem); }
}

/* ヒーローの流れ：スマホでは文字を少し小さく */
@media (max-width: 480px) {
  .forward-line { font-size: .82rem; letter-spacing: 0; }
  .forward-line li { padding-right: 4px; }
}

/* 代表写真：顔が切れないよう上寄せ */
.rep-photo img { object-position: center top; }

/* 会社概要のメールリンク */
.plain-link { color: var(--navy); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 企業理念 ---------- */
.philosophy-main {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.5rem, 4vw, 2.3rem); line-height: 1.7; letter-spacing: .06em;
  color: var(--navy);
  margin-bottom: clamp(28px, 4vw, 40px);
}
.philosophy-text p { line-height: 2.1; }
.philosophy-text p + p { margin-top: 1.4em; }
.philosophy-close {
  display: inline-block;
  margin-top: clamp(28px, 4vw, 40px);
  padding-bottom: 6px;
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.1rem, 2.6vw, 1.3rem); letter-spacing: .06em; color: var(--navy);
  border-bottom: 2px solid var(--dawn);
}

/* ---------- キャッチコピー：767px以下は2行 ----------
   1行のままだと文字が小さくなりすぎるため、「、」の後で改行して大きく見せる */
@media (max-width: 767px) {
  .hero-line { display: block; }
  .hero-title {
    /* 長い方の行（9文字＋字間）から逆算 */
    font-size: min(2.6rem, calc((100vw - 2 * var(--gutter)) / 9.8)); /* 上限はタブレット1行時と揃え、切り替わりで大きさが跳ねないように */
    line-height: 1.45;
  }
}