/* ============================================================
   有限会社 石橋鈑金 リデザインHP
   配色: 紺(信頼) × 銀(技術) × 朱(自動車) × 紙白
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:        #18334d;
  --navy-deep:   #0d1f33;
  --navy-soft:   #2c4f72;
  --silver:      #d4ccc1;
  --silver-mid:  #9a8e7e;
  --vermillion:  #d8651b;
  --vermillion-soft: #f1843d;
  --paper:       #fbf9f5;
  --paper-warm:  #f5ede1;
  --ink:         #1a1a1a;
  --ink-soft:    #555;
  --ink-mute:    #8a8a8a;
  --line:        rgba(10,58,94,0.10);
  --line-dark:   rgba(255,255,255,0.10);

  --ff-serif:   'Noto Serif JP', 'Yu Mincho', serif;
  --ff-sans:    'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --ff-display: 'Cormorant Garamond', 'Noto Serif JP', serif;

  --max-w: 1180px;
  --col:   1.5rem;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.85;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img  { max-width: 100%; display: block; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .8em;
  font-family: var(--ff-display);
  font-size: .82rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--vermillion);
  font-weight: 500;
}
.eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--vermillion);
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 300;
  height: 72px;
  background: rgba(250,250,250,.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--max-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--col);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.nav-brand-jp {
  font-family: var(--ff-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: .06em;
}
.nav-brand-en {
  font-family: var(--ff-display);
  font-size: .68rem;
  letter-spacing: .25em;
  color: var(--vermillion);
  margin-top: .35em;
  font-weight: 500;
}
.nav-demo-badge {
  display: inline-block;
  margin-left: .6em;
  padding: .2em .65em;
  font-family: var(--ff-sans);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .12em;
  background: var(--vermillion);
  color: var(--paper);
  border-radius: 2px;
  vertical-align: middle;
  line-height: 1.4;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}
.nav-links > a {
  font-family: var(--ff-sans);
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--navy);
  transition: color .2s;
  position: relative;
}
.nav-links > a:not(.nav-cta):hover { color: var(--vermillion); }
.nav-links > a.is-active::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 0; right: 0;
  height: 2px;
  background: var(--vermillion);
}
.nav-cta {
  background: var(--vermillion) !important;
  color: var(--paper) !important;
  padding: .65em 1.5em;
  transition: background .2s !important;
  border-radius: 2px;
}
.nav-cta:hover { background: var(--vermillion-soft) !important; color: var(--paper) !important; }

.nav-tel {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.1;
  margin-right: .5rem;
}
.nav-tel-label {
  font-family: var(--ff-display);
  font-size: .6rem;
  letter-spacing: .25em;
  color: var(--ink-mute);
  margin-bottom: .25em;
}
.nav-tel-num {
  font-family: var(--ff-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: .04em;
}

.nav-toggle {
  display: none;
  width: 28px;
  height: 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--navy);
  transition: transform .25s, opacity .2s, top .25s;
}
.nav-toggle span:nth-child(1) { top: 2px; }
.nav-toggle span:nth-child(2) { top: 10px; }
.nav-toggle span:nth-child(3) { top: 18px; }
.nav-toggle.is-open span:nth-child(1) { top: 10px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 10px; transform: rotate(-45deg); }

/* ── HERO (HOMEのみ) ── */
.hero {
  position: relative;
  min-height: 88svh;
  padding-top: 72px;
  background:
    linear-gradient(180deg, rgba(5,31,51,.55) 0%, rgba(5,31,51,.4) 60%, rgba(5,31,51,.7) 100%),
    url('../images/hero_friendly_garage.png') center / cover no-repeat;
  color: var(--paper);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 4rem var(--col);
  width: 100%;
}
.hero-eyebrow {
  color: var(--vermillion-soft);
  margin-bottom: 1.8rem;
}
.hero-eyebrow::before { background: var(--vermillion-soft); }
.hero-title {
  font-family: var(--ff-serif);
  font-weight: 600;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.4;
  letter-spacing: .04em;
  margin-bottom: 1.2rem;
  text-shadow: 0 2px 30px rgba(0,0,0,.4);
  max-width: 720px;
}
.hero-title .accent {
  color: var(--vermillion-soft);
  font-weight: 700;
  display: block;
  margin-top: .2em;
}
.hero-since {
  display: block;
  font-family: var(--ff-display);
  font-size: 1rem;
  letter-spacing: .25em;
  color: var(--silver);
  font-weight: 400;
  margin-bottom: 1.4rem;
}
.hero-lead {
  font-family: var(--ff-serif);
  font-weight: 300;
  font-size: clamp(.95rem, 1.4vw, 1.1rem);
  line-height: 2.1;
  color: rgba(250,250,250,.95);
  max-width: 540px;
  margin-bottom: 2.6rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6em;
  font-family: var(--ff-sans);
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 1.1em 2.4em;
  transition: all .25s;
  border: 1px solid transparent;
  cursor: pointer;
  border-radius: 2px;
}
.btn-primary {
  background: var(--vermillion);
  color: var(--paper);
}
.btn-primary:hover { background: var(--vermillion-soft); }
.btn-secondary {
  background: var(--navy);
  color: var(--paper);
}
.btn-secondary:hover { background: var(--navy-soft); }
.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(250,250,250,.5);
}
.btn-ghost:hover { border-color: var(--paper); background: rgba(250,250,250,.08); }
.btn-arrow { transition: transform .2s; }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* LINE 公式緑ボタン */
.btn-line {
  background: #06C755 !important;
  color: #fff !important;
  font-weight: 700;
}
.btn-line:hover { background: #05a548 !important; color: #fff !important; }
.line-icon {
  width: 1.4em;
  height: 1.4em;
  flex-shrink: 0;
  fill: currentColor;
}

/* 浮動LINEボタン（FAB）— 訪問→問い合わせの最短導線 */
.line-fab {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 250;
  display: inline-flex;
  align-items: center;
  gap: .55em;
  background: #06C755;
  color: #fff !important;
  border-radius: 999px;
  padding: .9rem 1.4rem;
  box-shadow: 0 6px 20px rgba(0,0,0,.28), 0 0 0 4px rgba(6,199,85,.15);
  font-family: var(--ff-sans);
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
  line-height: 1.15;
}
.line-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0,0,0,.32), 0 0 0 6px rgba(6,199,85,.2);
}
.line-fab .line-icon {
  width: 26px;
  height: 26px;
}
.line-fab-label .l1 { display: block; font-size: .82rem; }
.line-fab-label .l2 { display: block; font-size: .68rem; opacity: .9; font-weight: 500; }
@media (max-width: 520px) {
  .line-fab { right: .8rem; bottom: .8rem; padding: .85rem 1.1rem; }
  .line-fab-label .l1 { font-size: .76rem; }
  .line-fab-label .l2 { font-size: .62rem; }
}

/* ── PAGE HEADER (サブページ用) ── */
.pageheader {
  padding: 130px 0 60px;
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
  color: var(--paper);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.pageheader::after {
  content: '';
  position: absolute;
  top: 0; right: -30%;
  width: 60%; height: 100%;
  background: radial-gradient(circle, rgba(197,48,42,.18), transparent 60%);
}
.pageheader-eyebrow {
  display: inline-block;
  font-family: var(--ff-display);
  font-size: .75rem;
  letter-spacing: .35em;
  color: var(--vermillion-soft);
  margin-bottom: 1rem;
  font-weight: 500;
}
.pageheader-title {
  font-family: var(--ff-serif);
  font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: .06em;
  position: relative;
  z-index: 1;
}
.pageheader-sub {
  margin-top: .8rem;
  font-size: .9rem;
  color: var(--silver);
  letter-spacing: .04em;
}

/* ── SECTION ── */
.sec {
  padding: 6rem var(--col);
  position: relative;
}
.sec-head {
  text-align: center;
  margin-bottom: 4rem;
}
.sec-head .eyebrow { margin-bottom: 1rem; }
.sec-title {
  font-family: var(--ff-serif);
  font-weight: 600;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  line-height: 1.4;
  letter-spacing: .06em;
  color: var(--navy);
}
.sec-title-en {
  display: block;
  font-family: var(--ff-display);
  font-size: clamp(.85rem, 1.3vw, 1rem);
  letter-spacing: .3em;
  color: var(--vermillion);
  margin-top: .8rem;
  font-weight: 500;
}

/* ── HOME: 一般 / ビジネス 2カラム ── */
.dual-target {
  background: var(--paper-warm);
}
.dual-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.target-card {
  background: var(--paper);
  padding: 2.8rem 2.4rem;
  border-top: 4px solid var(--navy);
  transition: transform .25s, box-shadow .25s;
}
.target-card.is-business { border-top-color: var(--vermillion); }
.target-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px -16px rgba(10,58,94,.18); }
.target-cat {
  display: inline-block;
  font-family: var(--ff-display);
  font-size: .68rem;
  letter-spacing: .28em;
  color: var(--vermillion);
  margin-bottom: 1rem;
  font-weight: 500;
}
.target-card.is-business .target-cat { color: var(--vermillion); }
.target-card h3 {
  font-family: var(--ff-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 1.2rem;
  line-height: 1.6;
}
.target-card p {
  font-size: .92rem;
  color: var(--ink-soft);
  line-height: 2.0;
  margin-bottom: 1rem;
}
.target-card p:last-of-type { margin-bottom: 1.5rem; }

/* ── HOME: 3つのポイント ── */
.points {
  background: var(--navy);
  color: var(--paper);
  padding: 5rem var(--col);
}
.points-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.point-item {
  text-align: center;
  padding: 1rem;
  border-right: 1px solid var(--line-dark);
}
.point-item:last-child { border-right: none; }
.point-num {
  font-family: var(--ff-display);
  font-size: .75rem;
  letter-spacing: .35em;
  color: var(--vermillion-soft);
  margin-bottom: 1rem;
  font-weight: 500;
}
.point-item h3 {
  font-family: var(--ff-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: .04em;
}
.point-item p {
  font-size: .88rem;
  color: rgba(250,250,250,.8);
  line-height: 2;
}

/* ── サービス/板金 リストカード ── */
.feature-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.feature-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: 0 16px 36px -14px rgba(10,58,94,.18); }
.feature-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--paper-warm);
}
.feature-img img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.feature-body { padding: 2rem 1.8rem; }
.feature-cat {
  font-family: var(--ff-display);
  font-size: .7rem;
  letter-spacing: .25em;
  color: var(--vermillion);
  margin-bottom: .8rem;
  font-weight: 500;
}
.feature-body h3 {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 1rem;
  line-height: 1.5;
}
.feature-body p {
  font-size: .9rem;
  color: var(--ink-soft);
  line-height: 2;
  margin-bottom: 1rem;
}
.feature-list {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.feature-list-label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: .8rem;
  letter-spacing: .04em;
}
.feature-list ul li {
  font-size: .85rem;
  color: var(--ink-soft);
  padding: .3em 0;
  padding-left: 1.2em;
  position: relative;
}
.feature-list ul li::before {
  content: '●';
  color: var(--vermillion);
  position: absolute;
  left: 0;
  font-size: .55em;
  top: .9em;
}

/* ── 会社概要テーブル ── */
.company-table {
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
  border-collapse: collapse;
  border-top: 2px solid var(--navy);
  border-bottom: 2px solid var(--navy);
}
.company-table th, .company-table td {
  padding: 1.2rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: .92rem;
  vertical-align: top;
}
.company-table th {
  width: 30%;
  font-family: var(--ff-serif);
  font-weight: 600;
  color: var(--navy);
  background: var(--paper-warm);
}
.company-table td {
  color: var(--ink);
}
.company-table tr:last-child th,
.company-table tr:last-child td { border-bottom: none; }

/* ── アクセス ── */
.access {
  background: var(--paper-warm);
}
.access-inner {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}
.access-info {
  font-family: var(--ff-serif);
  font-size: 1.1rem;
  line-height: 2.2;
  color: var(--navy);
  margin-bottom: 2rem;
}
.access-mapwrap {
  margin-top: 2rem;
  border: 1px solid var(--line);
  background: #fff;
  padding: 2rem;
  font-size: .92rem;
  color: var(--ink-soft);
  line-height: 2;
  text-align: left;
}
.access-mapwrap h4 {
  font-family: var(--ff-serif);
  font-weight: 600;
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 1rem;
  text-align: center;
}
.access-mapwrap ol {
  padding-left: 1.5em;
}
.access-mapwrap ol li { padding: .3em 0; }

/* ── お問い合わせ ── */
.contact {
  text-align: center;
}
.contact-grid {
  max-width: 920px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.contact-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 3rem 2rem;
  border-radius: 4px;
  border-top: 4px solid var(--navy);
}
.contact-card.is-tel { border-top-color: var(--vermillion); }
.contact-cat {
  font-family: var(--ff-display);
  font-size: .7rem;
  letter-spacing: .3em;
  color: var(--vermillion);
  margin-bottom: 1.2rem;
  font-weight: 500;
}
.contact-tel-num {
  font-family: var(--ff-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: .04em;
  display: block;
  margin: 1rem 0 .5rem;
}
.contact-card p {
  font-size: .85rem;
  color: var(--ink-soft);
  line-height: 1.9;
}
.contact-card a.btn { margin-top: 1.5rem; }
.contact-hours {
  margin-top: 2rem;
  font-size: .85rem;
  color: var(--ink-soft);
  font-family: var(--ff-serif);
}

/* メールフォーム（簡易表示） */
.contact-form {
  max-width: 640px;
  margin: 3rem auto 0;
  text-align: left;
  display: grid;
  gap: 1.2rem;
}
.field { display: grid; gap: .4rem; }
.field label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: .04em;
}
.field input, .field textarea, .field select {
  background: var(--paper);
  border: 1px solid var(--silver);
  color: var(--ink);
  font-family: var(--ff-sans);
  font-size: .95rem;
  padding: .85em 1em;
  outline: none;
  border-radius: 2px;
  -webkit-appearance: none;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--vermillion);
  background: #fff;
}
.form-submit {
  margin-top: 1rem;
  align-self: center;
}

/* ── CTA Banner ── */
.cta-banner {
  background:
    linear-gradient(135deg, rgba(5,31,51,.92), rgba(10,58,94,.85)),
    url('../images/hero_friendly_garage.png') center / cover no-repeat;
  color: var(--paper);
  padding: 5rem var(--col);
  text-align: center;
}
.cta-banner h2 {
  font-family: var(--ff-serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  letter-spacing: .06em;
  margin-bottom: 1.2rem;
  line-height: 1.6;
}
.cta-banner p {
  font-size: .95rem;
  color: rgba(250,250,250,.85);
  margin-bottom: 2rem;
  line-height: 2;
}

/* ── FOOTER ── */
.footer {
  background: var(--navy-deep);
  color: rgba(250,250,250,.7);
  padding: 4rem var(--col) 2rem;
}
.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto 3rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
}
.footer-brand .nav-brand-jp { color: var(--paper); font-size: 1.2rem; }
.footer-brand .nav-brand-en { font-size: .7rem; }
.footer-brand p {
  margin-top: 1.2rem;
  font-size: .85rem;
  line-height: 2;
  max-width: 360px;
}
.footer h4 {
  font-family: var(--ff-display);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .25em;
  color: var(--vermillion-soft);
  margin-bottom: 1.2rem;
}
.footer ul li { margin-bottom: .6rem; font-size: .87rem; }
.footer ul a:hover { color: var(--vermillion-soft); }
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--line-dark);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-copyright {
  font-family: var(--ff-display);
  font-size: .72rem;
  letter-spacing: .15em;
  color: rgba(250,250,250,.5);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .nav-tel { display: none; }
  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 1rem 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform .3s, opacity .25s;
  }
  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links > a {
    padding: 1em var(--col);
    border-bottom: 1px solid var(--line);
  }
  .nav-cta { margin: .5rem var(--col); text-align: center; }
  .nav-toggle { display: block; }

  .hero { min-height: auto; }
  .hero-inner { padding: 3rem var(--col) 5rem; }

  .pageheader { padding: 110px 0 50px; }

  .sec { padding: 4rem var(--col); }

  .dual-grid { grid-template-columns: 1fr; }
  .points-grid { grid-template-columns: 1fr; gap: 2rem; }
  .point-item { border-right: none; border-bottom: 1px solid var(--line-dark); padding-bottom: 2rem; }
  .point-item:last-child { border-bottom: none; padding-bottom: 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card.is-line { order: 1; }
  .contact-card.is-tel  { order: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  :root { --col: 1.2rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .company-table th, .company-table td { padding: 1rem; font-size: .88rem; }
  .company-table th { width: 36%; }
}