/* ============================================
   NG Plus Inc. — corporate site
   静かな上質さ: 明朝見出し × ゴシック本文 × 濃紺
   ============================================ */

:root {
  --paper: #faf9f6;
  --paper-deep: #f2f0ea;
  --ink: #1c1c1a;
  --ink-soft: #55534e;
  --line: #d9d5cc;
  --navy: #1c3557;
  --navy-soft: #4a6285;
  --serif: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--navy); text-decoration: none; }
a:hover { opacity: 0.7; }

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

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-top: 22px;
  padding-bottom: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
}

.brand-logo {
  display: block;
  width: 64px;
  height: auto;
}

.brand small {
  display: block;
  font-family: var(--sans);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: var(--ink-soft);
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 26px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.site-nav a { color: var(--ink-soft); padding: 4px 0; }
.site-nav a:hover { color: var(--navy); opacity: 1; }
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 1px solid var(--navy);
}

/* ---------- hero (index) ---------- */

.hero {
  position: relative;
  padding: 110px 0 90px;
  overflow: hidden;
}

.hero .wrap { position: relative; z-index: 1; }

.hero-motif {
  /* ロゴの「＋」の重なりを、半透明の矩形として余白に大きく展開する */
  position: absolute;
  right: 5vw;
  top: 50%;
  transform: translateY(-50%);
  width: min(30vw, 360px);
  height: auto;
  pointer-events: none;
}

.hero-motif .m-v { fill: var(--navy); opacity: 0.08; }
.hero-motif .m-h { fill: var(--ink); opacity: 0.05; }
.hero-motif .m-s { fill: var(--navy-soft); opacity: 0.10; }

.hero .en-label,
.section-label {
  display: block;
  font-size: 0.66rem;
  letter-spacing: 0.34em;
  color: var(--navy-soft);
  margin-bottom: 26px;
  text-transform: uppercase;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 4.6vw, 2.6rem);
  font-weight: 600;
  line-height: 1.9;
  letter-spacing: 0.1em;
}

.hero .lead {
  margin-top: 34px;
  max-width: 40em;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

@media (max-width: 640px) {
  .hero { padding: 64px 0 56px; }
  .hero-motif { width: 58vw; right: -14vw; top: 0; transform: translateY(-22%); }
}

/* ---------- sections ---------- */

.section {
  border-top: 1px solid var(--line);
  padding: 80px 0;
}

.section h2 {
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  margin-bottom: 40px;
}

/* 事業カード */

.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.biz-card {
  background: var(--paper);
  padding: 36px 28px 40px;
  transition: background 0.25s ease;
}

.biz-card:hover { background: var(--paper-deep); }

.biz-card .num {
  font-family: var(--serif);
  font-size: 0.8rem;
  color: var(--navy-soft);
  letter-spacing: 0.2em;
}

.biz-card h3 {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin: 14px 0 16px;
  line-height: 1.8;
}

.biz-card p {
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 2;
}

@media (max-width: 720px) {
  .biz-grid { grid-template-columns: 1fr; }
}

/* ---------- subpage ---------- */

.page-header {
  padding: 72px 0 56px;
}

.page-header h1 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.14em;
}

.page-body { padding-bottom: 110px; }

.page-body h2 {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin: 64px 0 24px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}

.page-body h2:first-child { margin-top: 0; }

.page-body p { margin-bottom: 1.4em; }

.page-body .muted { color: var(--ink-soft); font-size: 0.88rem; }

/* 事業ページの領域リスト */

.field-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px 24px;
  margin: 24px 0 8px;
}

.field-list li {
  font-size: 0.88rem;
  padding-left: 1.1em;
  position: relative;
}

.field-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95em;
  width: 0.45em;
  height: 1px;
  background: var(--navy);
}

/* ---------- メディア（チャンネル紹介） ---------- */

.media-head {
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 28px 0 20px;
}

.media-head img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.media-head .ch-name {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.media-head .ch-meta {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 4px;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px 16px;
  margin: 28px 0 12px;
}

.video-card { display: block; }

.video-card .thumb {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--paper-deep);
  border: 1px solid var(--line);
}

.video-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.video-card:hover .thumb img { transform: scale(1.03); }
.video-card:hover { opacity: 1; }

.video-card .v-title {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--ink);
  margin-top: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 640px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
}

/* note 深掘りブロック */

.note-card {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  border: 1px solid var(--line);
  background: #fff;
  padding: 28px;
  max-width: 640px;
  margin: 24px 0;
}

.note-card img {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  border: 1px solid var(--line);
  flex-shrink: 0;
}

.note-card h3 {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.note-card p { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 10px; }

@media (max-width: 520px) {
  .note-card { flex-direction: column; }
}

/* ---------- 会社概要テーブル ---------- */

.company-table {
  width: 100%;
  max-width: 640px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.company-table th,
.company-table td {
  text-align: left;
  vertical-align: top;
  padding: 18px 8px;
  border-bottom: 1px solid var(--line);
  font-weight: 400;
}

.company-table th {
  width: 9em;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
}

/* ---------- contact ---------- */

.contact-block {
  border: 1px solid var(--line);
  background: #fff;
  padding: 36px 32px;
  margin-bottom: 28px;
}

.contact-block h2 {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin: 0 0 14px;
  padding: 0;
  border: none;
}

.contact-block p { font-size: 0.88rem; color: var(--ink-soft); margin-bottom: 18px; }

.contact-mail {
  font-family: var(--serif);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
}

/* ---------- profile ---------- */

.profile-name {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.profile-name small {
  display: block;
  font-family: var(--sans);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--ink-soft);
  margin-top: 8px;
}

.sns-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 20px;
  font-size: 0.88rem;
}

.sns-list a { border-bottom: 1px solid var(--line); padding-bottom: 2px; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
  padding: 44px 0 52px;
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
}

.site-footer .f-brand {
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--ink);
  letter-spacing: 0.14em;
  margin-bottom: 10px;
}

.site-footer .copy { margin-top: 18px; }

/* ---------- reveal（読み込み時の静かな立ち上がり） ---------- */

@media (prefers-reduced-motion: no-preference) {
  .hero .en-label, .hero h1, .hero .lead,
  .page-header h1 {
    opacity: 0;
    transform: translateY(14px);
    animation: rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  }
  .hero h1, .page-header h1 { animation-delay: 0.12s; }
  .hero .lead { animation-delay: 0.26s; }
}

@keyframes rise {
  to { opacity: 1; transform: none; }
}