/* ============================================
   株式会社カズミック - クール・ミニマルver
   ============================================ */

:root {
  --navy-900: #06182E;
  --navy-800: #0F2A4A;
  --navy-700: #1B3A5E;
  --navy-600: #2E527C;
  --navy-100: #DFE7EF;
  --navy-50:  #EEF3F8;

  --accent: #0F2A4A;
  --accent-dark: #06182E;
  --accent-light: #E8F0F5;
  --accent-line: #B6C7D6;

  --ink-900: #0A1525;
  --ink-700: #28344A;
  --ink-500: #5A6577;
  --ink-400: #8893A6;
  --ink-300: #B5BDC9;
  --ink-200: #D8DEE6;
  --ink-100: #ECEFF3;

  --bg: #FFFFFF;
  --bg-alt: #F5F7F9;
  --bg-mist: #FAFBFC;

  --line: #E5E8EC;
  --line-strong: #C9CFD7;

  --radius-sm: 2px;
  --radius: 4px;
  --radius-lg: 8px;

  --shadow-sm: 0 1px 2px rgba(15,42,74,.04), 0 2px 6px rgba(15,42,74,.03);
  --shadow: 0 6px 20px rgba(15,42,74,.06), 0 16px 40px rgba(15,42,74,.04);
  --shadow-lg: 0 20px 60px rgba(15,42,74,.10);

  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-mincho: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-num: "Cormorant Garamond", "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Cormorant Garamond", "Inter", serif;

  --header-h: 80px;
  --max-w: 1240px;
}

@media (max-width: 720px) {
  :root { --header-h: 64px; }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { overflow-x: clip; }
body {
  font-family: var(--font-jp);
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-900);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "palt";
}
img, svg { display: block; max-width: 100%; }
img { object-fit: cover; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }
section { padding: 120px 0; }
@media (max-width: 1100px) { section { padding: 96px 0; } .container { padding: 0 24px; } }
@media (max-width: 720px) { section { padding: 64px 0; } .container { padding: 0 16px; } }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; height: var(--header-h);
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: border-color .3s, background .3s;
}
/* When menu is open, drop backdrop-filter so .nav (position:fixed) can escape this containing block */
body.menu-open .site-header {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: #fff;
}
.site-header.scrolled {
  background: rgba(255,255,255,.96);
  border-bottom-color: var(--line);
}
.site-header .container {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo { height: 44px; width: auto; display: block; }
.brand-mark {
  width: 40px; height: 40px;
  background: var(--navy-800);
  display: grid; place-items: center;
  color: #fff;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: .04em;
}
.brand-name { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name .ja {
  font-size: 14px;
  font-family: var(--font-mincho);
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--navy-900);
}
.brand-name .en {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--ink-400);
  margin-top: 2px;
}

.nav { display: flex; align-items: center; gap: 36px; }
.nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-700);
  position: relative;
  padding: 6px 0;
  transition: color .15s;
  letter-spacing: .04em;
}
.nav a:hover { color: var(--navy-900); }
.nav a.active { color: var(--navy-900); }
.nav a.active::after {
  content: "";
  position: absolute; bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--navy-900);
}
.nav .num {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 500;
  color: var(--ink-400);
  display: block;
  letter-spacing: .2em;
  margin-bottom: 2px;
}
.nav-cta {
  background: var(--navy-800);
  color: #fff !important;
  padding: 14px 24px !important;
  font-weight: 500 !important;
  display: inline-flex; align-items: center; gap: 10px;
  transition: background .2s !important;
  font-size: 12px !important;
  letter-spacing: .08em;
}
.nav-cta .num { display: none !important; }
.nav-cta:hover { background: var(--navy-900); }
.nav-cta::after { display: none !important; }

.menu-toggle { display: none; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 18px 32px;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: .08em;
  transition: all .2s;
  white-space: nowrap;
  position: relative;
  border-radius: 0;
}
.btn-primary { background: var(--navy-800); color: #fff; }
.btn-primary:hover { background: var(--navy-900); }
.btn-dark { background: var(--navy-900); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-outline { background: transparent; color: var(--navy-900); border: 1px solid var(--navy-900); }
.btn-outline:hover { background: var(--navy-900); color: #fff; }
.btn-outline-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); }
.btn-outline-light:hover { background: #fff; color: var(--navy-900); border-color: #fff; }
.btn .arrow { transition: transform .25s; }
.btn:hover .arrow { transform: translateX(6px); }

/* ===== Section heading ===== */
.eyebrow {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: .35em;
  color: var(--ink-500);
  font-weight: 500;
  display: inline-flex; align-items: center; gap: 14px;
  text-transform: uppercase;
}
.eyebrow::before {
  content: ""; display: inline-block; width: 36px; height: 1px;
  background: var(--ink-400);
}
.section-title {
  font-family: var(--font-mincho);
  font-size: 40px;
  font-weight: 500;
  line-height: 1.55;
  margin-top: 20px;
  letter-spacing: .04em;
  color: var(--navy-900);
}
.section-lead {
  font-size: 15px;
  color: var(--ink-500);
  margin-top: 24px;
  max-width: 640px;
  line-height: 2.05;
}
.section-head { margin-bottom: 72px; }
.section-head.center { text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head.center .section-lead { margin-left: auto; margin-right: auto; }

/* ===== Footer ===== */
.site-footer { background: var(--navy-900); color: #fff; padding: 96px 0 32px; }
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .brand-mark { background: #fff; color: var(--navy-900); }
.footer-brand .brand-name .ja { color: #fff; }
.footer-brand .brand-name .en { color: rgba(255,255,255,.4); }
.footer-brand p {
  margin-top: 24px;
  color: rgba(255,255,255,.55);
  font-size: 13px;
  line-height: 2.05;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .25em;
  color: rgba(255,255,255,.85);
  margin-bottom: 24px;
  text-transform: uppercase;
}
.footer-col ul { list-style: none; }
.footer-col li {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  margin-bottom: 12px;
  transition: color .15s;
}
.footer-col li:hover { color: #fff; }
.footer-bottom {
  padding-top: 32px;
  display: flex; justify-content: space-between;
  font-size: 11px; color: rgba(255,255,255,.35);
  letter-spacing: .04em;
}

/* ===== Page hero ===== */
.page-hero {
  background: var(--navy-900);
  color: #fff;
  padding: calc(var(--header-h) + 100px) 0 100px;
  position: relative; overflow: hidden;
}
.page-hero .bg-img {
  position: absolute; inset: 0; z-index: 0;
  opacity: .35;
}
.page-hero .bg-img img { width: 100%; height: 100%; }
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(6,24,46,.95) 0%, rgba(15,42,74,.7) 100%);
  z-index: 1;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .eyebrow { color: rgba(255,255,255,.7); }
.page-hero .eyebrow::before { background: rgba(255,255,255,.5); }
.page-hero h1 {
  font-family: var(--font-mincho);
  font-size: 56px;
  font-weight: 500;
  margin-top: 16px;
  letter-spacing: .06em;
}
.page-hero .en {
  font-family: var(--font-display);
  font-size: 13px;
  color: rgba(255,255,255,.4);
  letter-spacing: .3em;
  margin-top: 16px;
  display: block;
  text-transform: uppercase;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 24px 0;
  font-size: 11px;
  color: var(--ink-400);
  background: var(--bg-mist);
  border-bottom: 1px solid var(--line);
  letter-spacing: .04em;
}
.breadcrumb ol { list-style: none; display: flex; gap: 12px; flex-wrap: wrap; }
.breadcrumb li:not(:last-child)::after { content: "/"; margin-left: 12px; color: var(--ink-300); }
.breadcrumb a:hover { color: var(--navy-800); }
.breadcrumb li[aria-current] { color: var(--navy-800); }

/* ===== Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1s cubic-bezier(.2,.8,.2,1), transform 1s cubic-bezier(.2,.8,.2,1);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: .1s; }
.reveal.delay-2 { transition-delay: .2s; }
.reveal.delay-3 { transition-delay: .3s; }
.reveal.delay-4 { transition-delay: .4s; }

/* ===== Image utility ===== */
.img-frame { overflow: hidden; position: relative; background: var(--bg-alt); }
.img-frame img { width: 100%; height: 100%; display: block; transition: transform 1.4s cubic-bezier(.2,.8,.2,1); }
.img-frame:hover img { transform: scale(1.04); }

/* ===== Forms ===== */
.form-grid { display: grid; gap: 24px; }
.form-row { display: grid; grid-template-columns: 200px 1fr; gap: 32px; align-items: start; }
.form-row label {
  padding-top: 14px;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: .06em;
  display: flex; align-items: center; gap: 10px;
}
.form-row .req {
  font-size: 10px;
  background: var(--navy-800); color: #fff;
  padding: 2px 8px;
  font-weight: 500;
  letter-spacing: .06em;
}
.form-row .opt {
  font-size: 10px;
  background: var(--ink-200); color: var(--ink-700);
  padding: 2px 8px;
  font-weight: 500;
  letter-spacing: .06em;
}

.field {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
  font-size: 14px;
  border-radius: 0;
}
.field:focus {
  outline: none;
  border-color: var(--navy-800);
  box-shadow: 0 0 0 1px var(--navy-800);
}
.field.error { border-color: #B83A3A; background: #FEF8F8; }
.field-error { color: #B83A3A; font-size: 12px; margin-top: 6px; }
.field-hint { color: var(--ink-500); font-size: 12px; margin-top: 6px; }
textarea.field { resize: vertical; min-height: 140px; }
select.field {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-700) 50%), linear-gradient(135deg, var(--ink-700) 50%, transparent 50%);
  background-position: calc(100% - 22px) center, calc(100% - 16px) center;
  background-size: 6px 6px, 6px 6px; background-repeat: no-repeat;
  padding-right: 44px;
}

.checkbox-group { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-pill { position: relative; cursor: pointer; }
.checkbox-pill input { position: absolute; opacity: 0; }
.checkbox-pill span {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  font-size: 13px;
  font-weight: 500;
  background: #fff;
  transition: all .15s;
}
.checkbox-pill input:checked + span {
  background: var(--navy-800);
  color: #fff;
  border-color: var(--navy-800);
}
.checkbox-pill:hover span { border-color: var(--navy-800); }

/* ===== Responsive ===== */
@media (max-width: 1280px) {
  .nav a { padding: 0 14px !important; font-size: 13px !important; }
  .nav a .num { font-size: 9px !important; margin-right: 6px !important; }
}
@media (max-width: 1100px) {
  .nav { display: none; }
  .menu-toggle {
    display: grid; place-items: center;
    width: 44px; height: 44px;
    color: var(--navy-800);
    border: 1px solid var(--line);
    background: #fff;
    margin-left: auto;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0,0,0,.1);
    touch-action: manipulation;
    transition: all .2s;
  }
  .menu-toggle svg { pointer-events: none; transition: transform .3s; }
  .menu-toggle:hover { border-color: var(--navy-800); }
  body.menu-open .menu-toggle { background: var(--navy-900); border-color: var(--navy-900); color: #fff; }
  body.menu-open .menu-toggle svg { transform: rotate(90deg); }

  /* Backdrop */
  .nav-backdrop {
    position: fixed; inset: 0;
    background: rgba(6,24,46,0);
    z-index: 98;
    pointer-events: none;
    transition: background .35s ease;
  }
  body.menu-open .nav-backdrop {
    background: rgba(6,24,46,.45);
    pointer-events: auto;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
  }

  /* Drawer panel */
  .nav.open {
    display: flex !important;
    position: fixed;
    top: var(--header-h);
    right: 16px;
    left: auto;
    bottom: auto;
    width: min(360px, calc(100vw - 32px));
    max-height: calc(100vh - var(--header-h) - 24px);
    background: #fff;
    flex-direction: column;
    padding: 12px 0 16px;
    gap: 0;
    border: 1px solid var(--line);
    box-shadow: 0 24px 60px rgba(6,24,46,.18), 0 4px 12px rgba(6,24,46,.08);
    align-items: stretch;
    overflow-y: auto;
    z-index: 99;
    transform-origin: top right;
    animation: navDropIn .28s cubic-bezier(.2,.8,.2,1);
  }
  @keyframes navDropIn {
    from { opacity: 0; transform: translateY(-8px) scale(.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }
  .nav.open a {
    padding: 16px 28px;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
    font-family: var(--font-mincho);
    letter-spacing: .06em;
    display: flex;
    align-items: center;
    gap: 18px;
    color: var(--navy-900);
    transition: background .15s, padding .2s;
  }
  .nav.open a:last-of-type { border-bottom: none; }
  .nav.open a:hover { background: var(--bg-alt); padding-left: 32px; }
  .nav.open a .num {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: .25em;
    color: var(--ink-400);
    min-width: 28px;
    margin-bottom: 0;
  }
  .nav.open a.active { color: var(--navy-800); }
  .nav.open a.active .num { color: var(--navy-800); }
  .nav.open a.active::after { display: none; }
  .nav.open .nav-cta {
    margin: 16px 20px 0 !important;
    padding: 16px 24px !important;
    text-align: center;
    border: none !important;
    border-radius: 0 !important;
    justify-content: center;
    font-size: 13px !important;
    letter-spacing: .12em !important;
    background: var(--navy-800) !important;
    color: #fff !important;
  }
  .nav.open .nav-cta:hover { background: var(--navy-900) !important; padding-left: 24px !important; }
  .nav.open .nav-cta .num { display: none !important; }
  body.menu-open { overflow: hidden; }
}

@media (max-width: 880px) {
  .section-title { font-size: 28px; }
  .section-head { margin-bottom: 48px; }
  .section-lead { font-size: 14px; margin-top: 18px; }
  .page-hero { padding: calc(var(--header-h) + 64px) 0 64px; }
  .page-hero h1 { font-size: 32px; }
  .page-hero .en { font-size: 11px; letter-spacing: .25em; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding-bottom: 40px; }
  .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
  .site-footer { padding: 64px 0 32px; }
  .form-row { grid-template-columns: 1fr; gap: 8px; }
  .form-row label { padding-top: 0; }
  body { font-size: 14px; line-height: 1.9; }
  .btn { padding: 16px 24px; font-size: 12px; }
}

@media (max-width: 600px) {
  .brand-mark { width: 36px; height: 36px; font-size: 19px; }
  .brand-logo { height: 36px; }
  .brand-name .ja { font-size: 12px; }
  .brand-name .en { font-size: 9px; letter-spacing: .25em; }
  .page-hero h1 { font-size: 26px; letter-spacing: .04em; }
  .section-title { font-size: 24px; letter-spacing: .03em; }
  .eyebrow { font-size: 10px; letter-spacing: .25em; }
  .eyebrow::before { width: 24px; }
}

/* ====================================================
   見出しの改行をスマホで自動調整
   ----------------------------------------------------
   PCではデザイン通りの手動改行(<br>)をそのまま活かし、
   スマホ(720px以下)では手動改行を無効化して、
   各端末の画面幅に合わせて自然に折り返すようにする。
   これにより「スマホによって改行位置がズレる」現象を防ぐ。
   ==================================================== */
h1, h2, h3,
.hero h1,
.page-hero h1,
.section-title {
  /* 対応ブラウザでは行の長さを自動でバランスよく折り返す */
  text-wrap: balance;
  /* 長い英数字や記号で画面からはみ出すのを防ぐ */
  overflow-wrap: anywhere;
}
@media (max-width: 720px) {
  /* スマホでは手動改行(<br>)を無効化し、
     代わりに「意味のかたまり(.phr)」単位で折り返す。
     → 文章の途中では切れず、画面幅に応じてキリのいい所で改行される。 */
  h1 br, h2 br, h3 br,
  .hero h1 br,
  .page-hero h1 br,
  .section-title br {
    display: none;
  }
  .phr {
    display: inline-block;
  }
}