/* ============================================================
   SSC — Siam System Consulting Co., Ltd.
   style.css  |  バニラ CSS / BEM / カスタムプロパティ
   ============================================================ */

/* ── 0. カスタムプロパティ ────────────────────────────── */
:root {
  /* カラー（ブランド: SSC レッドはアクセントに留め、地色は中性で目に優しく） */
  --c-primary:       #C8102E;   /* SSC ロゴレッド（ブランド／CTA） */
  --c-primary-dark:  #A00C24;
  --c-primary-light: #E63946;
  --c-accent:        #2563EB;   /* 補助：落ち着いたインディゴブルー（赤の補色寄り） */
  --c-accent-dark:   #1D4ED8;
  --c-text:          #1F2937;   /* チャコール（純黒を避けて柔らかく） */
  --c-text-muted:    #6B7280;
  --c-bg:            #FFFFFF;
  --c-bg-alt:        #F7F8FA;   /* 中性のオフホワイト（クールグレー寄り） */
  --c-border:        #E5E7EB;
  --c-dark:          #1F2937;   /* 暗背景：チャコール（赤の濃色を使わない） */
  --c-dark-2:        #2D3748;

  /* タイポグラフィ */
  --f-sans:    "Inter", "Noto Sans JP", sans-serif;
  --f-jp:      "Noto Sans JP", "Inter", sans-serif;
  --f-th:      "Noto Sans Thai", "Inter", sans-serif;

  /* スペーシング */
  --container: 1200px;
  --gap:       clamp(1.5rem, 4vw, 2.5rem);
  --section-py: clamp(4rem, 8vw, 7rem);

  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(31,41,55,.07);
  --shadow-md: 0 8px 28px rgba(31,41,55,.12);
  --shadow-lg: 0 20px 60px rgba(31,41,55,.18);

  /* 角丸 */
  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;

  /* トランジション */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur:  220ms;
}

html[lang="th"] body { font-family: var(--f-th); }
html[lang="ja"] body { font-family: var(--f-jp); }
html[lang="en"] body { font-family: var(--f-sans); }

/* 日本語の改行を自然に：単語の途中で折り返さず、見出しはバランス改行 */
html[lang="ja"] {
  word-break: auto-phrase;        /* 文節単位で改行（対応ブラウザ） */
  line-break: strict;
  overflow-wrap: anywhere;
}
html[lang="ja"] h1,
html[lang="ja"] h2,
html[lang="ja"] h3,
html[lang="ja"] h4,
html[lang="ja"] .hero__title,
html[lang="ja"] .section-title,
html[lang="ja"] .case-card__title,
html[lang="ja"] .product-card__name,
html[lang="ja"] .about-card__title,
html[lang="ja"] .why-item__title {
  text-wrap: balance;             /* 見出しは行頭・行末を均等に */
  word-break: auto-phrase;
}
html[lang="ja"] .hero__lead,
html[lang="ja"] .section-lead,
html[lang="ja"] .product-card__desc,
html[lang="ja"] .case-card__text,
html[lang="ja"] .service-row__text,
html[lang="ja"] .about-card__text {
  text-wrap: pretty;              /* 本文は最終行の孤立を避ける */
  word-break: auto-phrase;
}

/* ── 1. リセット & ベース ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--f-jp);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── 2. ユーティリティ ────────────────────────────────── */
.container {
  width: min(var(--container), 100% - 2.5rem);
  margin-inline: auto;
}

.section {
  padding-block: var(--section-py);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: .75rem;
}

.section-eyebrow--light { color: rgba(255,255,255,.65); }

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.625rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.02em;
  color: var(--c-primary);
}

.section-title--light { color: #fff; }

.section-lead {
  margin-top: 1rem;
  font-size: clamp(.9375rem, 1.5vw, 1.0625rem);
  color: var(--c-text-muted);
  line-height: 1.85;
}

.section-lead--light { color: rgba(255,255,255,.8); }

/* ── 3. ボタン ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .8125rem 1.875rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .9375rem;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
  white-space: nowrap;
}

.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--c-accent);
  color: #fff;
  box-shadow: 0 4px 18px rgba(37,99,235,.35);
}

.btn--primary:hover {
  background: var(--c-accent-dark);
  box-shadow: 0 8px 24px rgba(37,99,235,.45);
}

.btn--ghost {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-border);
}

.btn--ghost:hover {
  border-color: var(--c-primary);
  background: rgba(31,41,55,.05);
}

.btn--white {
  background: #fff;
  color: var(--c-primary);
  box-shadow: var(--shadow-md);
}

.btn--white:hover {
  background: var(--c-bg-alt);
}

.btn--slack {
  display: inline-flex;
  align-items: center;
  gap: .625rem;
}

.btn--slack svg { flex-shrink: 0; }

/* ── 4. ヘッダー ──────────────────────────────────────── */
.header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.header.is-scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 72px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: .625rem;
  flex-shrink: 0;
}

.header__logo-img {
  display: block;
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: filter var(--dur) var(--ease);
}

.header.is-scrolled .header__logo-img { filter: none; }

.header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--c-primary);
  color: #fff;
  font-size: .8125rem;
  font-weight: 900;
  letter-spacing: .04em;
  border-radius: var(--radius-sm);
  transition: background var(--dur) var(--ease);
}

.header.is-scrolled .header__logo-mark { background: var(--c-accent); }

.header__logo-name {
  font-size: .875rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.01em;
  transition: color var(--dur) var(--ease);
}

.header.is-scrolled .header__logo-name { color: var(--c-primary); }

.header__nav { margin-inline-start: auto; }

.header__nav-list {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.nav-link {
  display: inline-block;
  padding: .375rem .75rem;
  font-size: .875rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  border-radius: var(--radius-sm);
  transition: color var(--dur) var(--ease),
              background var(--dur) var(--ease);
}

.nav-link:hover { color: #fff; background: rgba(255,255,255,.12); }

.header.is-scrolled .nav-link        { color: var(--c-text-muted); }
.header.is-scrolled .nav-link:hover  { color: var(--c-primary); background: var(--c-bg-alt); }

.nav-link--cta {
  background: var(--c-accent);
  color: #fff !important;
  padding: .375rem 1rem;
  font-weight: 600;
}

.nav-link--cta:hover {
  background: var(--c-accent-dark) !important;
}

.header__controls {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-inline-start: .75rem;
}

/* 言語スイッチャー */
.lang-switcher {
  display: flex;
  gap: .25rem;
}

.lang-btn {
  padding: .3rem .65rem;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,.7);
  border: 1.5px solid rgba(255,255,255,.25);
  transition: color var(--dur) var(--ease),
              background var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.lang-btn:hover,
.lang-btn.is-active {
  color: #fff;
  background: rgba(255,255,255,.18);
  border-color: rgba(255,255,255,.6);
}

.header.is-scrolled .lang-btn         { color: var(--c-text-muted); border-color: var(--c-border); }
.header.is-scrolled .lang-btn:hover,
.header.is-scrolled .lang-btn.is-active {
  color: var(--c-primary);
  background: var(--c-bg-alt);
  border-color: var(--c-primary);
}

/* バーガーボタン */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
}

.burger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform var(--dur) var(--ease),
              opacity var(--dur) var(--ease);
}

.header.is-scrolled .burger span { background: var(--c-primary); }

.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── 5. ヒーロー ──────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  background: var(--c-dark);
  overflow: hidden;
  padding-block: 8rem 4rem;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .45;
}

.hero__orb--1 {
  width: 600px;
  height: 600px;
  top: -160px;
  right: -100px;
  background: radial-gradient(circle, #E63946 0%, transparent 70%);
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  bottom: -80px;
  left: -60px;
  background: radial-gradient(circle, rgba(37,99,235,.4) 0%, transparent 70%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__viz {
  position: absolute;
  top: 50%;
  right: -4%;
  transform: translateY(-50%);
  width: clamp(420px, 52%, 720px);
  height: auto;
  max-height: 92%;
  opacity: .85;
  pointer-events: none;
}

.hero__viz-edges path { stroke-dasharray: 4 6; }

@media (max-width: 1024px) {
  .hero__viz { opacity: .35; right: -15%; width: 70%; }
}

@media (max-width: 720px) {
  .hero__viz { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__viz animate,
  .hero__viz animateMotion { display: none; }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__location {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  font-size: .8125rem;
  font-weight: 500;
  color: rgba(255,255,255,.55);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.03em;
  color: #fff;
  margin-bottom: 1.5rem;
}

.hero__lead {
  font-size: clamp(1rem, 1.75vw, 1.125rem);
  color: rgba(255,255,255,.75);
  line-height: 1.85;
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .875rem;
  margin-bottom: 3.5rem;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 0;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,.12);
}

.hero__stat { text-align: center; flex: 1; }

.hero__stat-val {
  display: block;
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
}

.hero__stat-label {
  display: block;
  font-size: .75rem;
  color: rgba(255,255,255,.5);
  margin-top: .25rem;
  letter-spacing: .04em;
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.15);
  flex-shrink: 0;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,.25);
  color: rgba(255,255,255,.6);
  animation: bounce 2s infinite;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.hero__scroll:hover {
  border-color: rgba(255,255,255,.7);
  color: #fff;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── 6. About ─────────────────────────────────────────── */
.about { background: var(--c-bg-alt); }

.about__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.about-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.about-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.about-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(31,41,55,.07);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--c-primary);
}

.about-card__icon svg { width: 26px; height: 26px; }

.about-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: .625rem;
}

.about-card__text {
  font-size: .9375rem;
  color: var(--c-text-muted);
  line-height: 1.8;
}

/* ── 7. Services ──────────────────────────────────────── */
.services__list { display: flex; flex-direction: column; gap: 0; }

.service-row {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--c-border);
  transition: background var(--dur) var(--ease);
}

.service-row:first-child { border-top: 1px solid var(--c-border); }

.service-row__num {
  flex-shrink: 0;
  font-size: 2rem;
  font-weight: 900;
  color: var(--c-border);
  line-height: 1;
  width: 3.5rem;
  padding-top: .25rem;
  letter-spacing: -.04em;
  transition: color var(--dur) var(--ease);
}

.service-row:hover .service-row__num { color: var(--c-accent); }

.service-row__body { flex: 1; }

.service-row__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: .625rem;
}

.service-row__text {
  font-size: .9375rem;
  color: var(--c-text-muted);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.service-row__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  list-style: none;
}

.service-row__tags li {
  display: inline-block;
  padding: .25rem .75rem;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-primary-light);
  background: rgba(31,41,55,.07);
  border-radius: 100px;
}

/* ── 8. Products ──────────────────────────────────────── */
.products { background: var(--c-bg-alt); }

.products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

@media (max-width: 1100px) {
  .products__grid { grid-template-columns: repeat(2, 1fr); }
}

.product-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.product-card__accent {
  height: 4px;
}

.product-card--miihawk .product-card__accent { background: var(--c-primary); }
.product-card--kintai  .product-card__accent { background: var(--c-accent); }
.product-card--shift   .product-card__accent { background: #14B8A6; }
.product-card--pring   .product-card__accent { background: #8B5CF6; }

.product-card__inner {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__badge {
  display: inline-block;
  padding: .25rem .75rem;
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: 1rem;
  color: var(--c-primary);
  background: rgba(31,41,55,.08);
}

.product-card--kintai  .product-card__badge { color: var(--c-accent);    background: rgba(37,99,235,.1); }
.product-card--shift   .product-card__badge { color: #0D9488;             background: rgba(20,184,166,.1); }
.product-card--pring   .product-card__badge { color: #7C3AED;             background: rgba(139,92,246,.1); }

.product-card__name {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--c-primary);
  letter-spacing: -.02em;
  margin-bottom: .375rem;
}

.product-card__name-link {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  color: inherit;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.product-card__name-link:hover { color: var(--c-accent); }
.product-card__name-link svg { opacity: .55; transition: opacity var(--dur) var(--ease); }
.product-card__name-link:hover svg { opacity: 1; }

.product-card__tagline {
  font-size: .875rem;
  font-weight: 500;
  color: var(--c-text-muted);
  margin-bottom: 1rem;
}

.product-card__desc {
  font-size: .9375rem;
  color: var(--c-text-muted);
  line-height: 1.8;
  margin-bottom: 1.25rem;
  flex: 1;
}

.product-card__features {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  list-style: none;
}

.product-card__features li {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  font-weight: 500;
  color: var(--c-text);
}

.product-card__features li::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--c-accent);
}

.product-card--shift   .product-card__features li::before { background: #14B8A6; }
.product-card--miihawk .product-card__features li::before { background: var(--c-primary); }
.product-card--pring   .product-card__features li::before { background: #8B5CF6; }

/* ── 8.5 Cases ────────────────────────────────────────── */
.cases { background: var(--c-bg-alt); }

.cases__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}

.case-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.case-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.case-card__head {
  padding: 1.75rem 1.75rem 1.25rem;
  border-bottom: 1px solid var(--c-border);
  background: linear-gradient(135deg, rgba(31,41,55,.04), rgba(37,99,235,.04));
}

.case-card__tag {
  display: inline-block;
  padding: .25rem .75rem;
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: .875rem;
  color: var(--c-accent);
  background: rgba(37,99,235,.1);
}

.case-card__title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--c-primary);
  letter-spacing: -.01em;
  line-height: 1.4;
  margin-bottom: .5rem;
}

.case-card__client {
  font-size: .8125rem;
  font-weight: 500;
  color: var(--c-text-muted);
}

.case-card__product { margin-bottom: .5rem; }

.case-card__product-link {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  font-size: .875rem;
  font-weight: 700;
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 1px dashed rgba(37,99,235,.4);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.case-card__product-link:hover {
  color: var(--c-accent-dark);
  border-bottom-color: var(--c-accent-dark);
}

.case-card__body {
  padding: 1.5rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex: 1;
}

.case-card__block { display: flex; flex-direction: column; gap: .5rem; }

.case-card__label {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-primary-light);
}

.case-card__text {
  font-size: .9375rem;
  color: var(--c-text-muted);
  line-height: 1.8;
}

.case-card__results {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  list-style: none;
}

.case-card__results li {
  display: flex;
  align-items: flex-start;
  gap: .625rem;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--c-text);
  line-height: 1.6;
}

.case-card__results li::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  flex-shrink: 0;
  margin-top: .55rem;
}

/* ── 9. Partners ──────────────────────────────────────── */
.partners__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.partner-card {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.partner-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(31,41,55,.2);
}

.partner-card__logo-wrap {
  height: 52px;
  display: flex;
  align-items: center;
}

.partner-card__logo {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -.03em;
  color: var(--c-primary);
  opacity: .8;
}

.partner-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-primary);
}

.partner-card__text {
  font-size: .9375rem;
  color: var(--c-text-muted);
  line-height: 1.8;
  flex: 1;
}

.partner-card__role {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-accent);
  padding: .25rem .75rem;
  background: rgba(37,99,235,.08);
  border-radius: 100px;
}

/* ── 10. Why SSC ──────────────────────────────────────── */
.why {
  background: var(--c-dark);
  color: #fff;
}

.why .section-title { color: #fff; }
.why .section-eyebrow { color: var(--c-accent); }

.why__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

.why-item {
  border-top: 2px solid rgba(255,255,255,.1);
  padding-top: 1.5rem;
  transition: border-color var(--dur) var(--ease);
}

.why-item:hover { border-top-color: var(--c-accent); }

.why-item__num {
  display: block;
  font-size: 1.875rem;
  font-weight: 900;
  letter-spacing: -.04em;
  color: rgba(255,255,255,.12);
  margin-bottom: 1rem;
  line-height: 1;
}

.why-item__title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .625rem;
  line-height: 1.45;
}

.why-item__text {
  font-size: .9375rem;
  color: rgba(255,255,255,.6);
  line-height: 1.8;
}

/* ── 11. Company ──────────────────────────────────────── */
.company__table-wrap {
  max-width: 800px;
  margin-inline: auto;
  overflow-x: auto;
}

.company__table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9375rem;
}

.company__table th,
.company__table td {
  padding: 1.125rem 1.25rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-border);
}

.company__table th {
  width: 30%;
  font-weight: 700;
  color: var(--c-primary);
  white-space: nowrap;
  background: var(--c-bg-alt);
}

.company__table td {
  color: var(--c-text-muted);
  line-height: 1.8;
}

.company__list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  list-style: none;
}

.company__list li {
  position: relative;
  padding-inline-start: 1.25rem;
}

.company__list li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--c-accent);
  font-weight: 700;
}

/* ── 12. Contact ──────────────────────────────────────── */
.contact {
  background: var(--c-dark);
  padding-block: var(--section-py);
}

.contact__inner { text-align: center; }
.contact__content { max-width: 720px; margin-inline: auto; }

/* お問い合わせフォーム */
.contact-form {
  margin-top: 2.5rem;
  text-align: left;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  backdrop-filter: blur(6px);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.25rem;
}

.form-group { display: flex; flex-direction: column; gap: .375rem; }
.form-group--full { grid-column: 1 / -1; }

.form-label {
  font-size: .8125rem;
  font-weight: 600;
  color: rgba(255,255,255,.85);
  letter-spacing: .02em;
}

.form-required {
  color: var(--c-primary-light);
  margin-inline-start: .25rem;
}

.form-input,
.form-textarea,
.form-select {
  font: inherit;
  width: 100%;
  padding: .75rem .9rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius-sm);
  color: #fff;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.form-input::placeholder,
.form-textarea::placeholder { color: rgba(255,255,255,.4); }

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  background: rgba(255,255,255,.1);
  border-color: var(--c-primary-light);
}

.form-textarea { resize: vertical; min-height: 140px; line-height: 1.7; }

.form-select option { background: var(--c-dark); color: #fff; }

.contact-form__submit {
  margin-top: 1.5rem;
  width: 100%;
}

.email-mx-hint {
  margin: .375rem 0 0;
  font-size: .8rem;
  line-height: 1.4;
}
.email-mx-hint--checking { color: rgba(255,255,255,.55); }
.email-mx-hint--valid    { color: #6EE7B7; }
.email-mx-hint--invalid  { color: #FBBF24; }

.form-notification {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  background: rgba(251,191,36,.08);
  border: 1px solid rgba(251,191,36,.3);
  color: #FCD34D;
  animation: fadeInUp .3s ease;
}
.form-notification--error {
  background: rgba(239,68,68,.08);
  border-color: rgba(239,68,68,.35);
  color: #FCA5A5;
}
.form-notification__title { font-weight: 700; margin-bottom: .25rem; }

.contact-success {
  margin-top: 2.5rem;
  padding: 3rem 2rem;
  text-align: center;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(110,231,183,.3);
  border-radius: var(--radius);
  animation: fadeInUp .5s ease;
}
.contact-success__icon { color: #6EE7B7; margin-bottom: 1rem; }
.contact-success__title { color: #6EE7B7; font-size: 1.5rem; font-weight: 800; margin-bottom: .75rem; }
.contact-success__msg { color: rgba(255,255,255,.8); line-height: 1.8; max-width: 460px; margin: 0 auto 1.5rem; }

.contact__alt {
  margin-top: 1.5rem;
  font-size: .875rem;
  color: rgba(255,255,255,.55);
}
.contact__alt a {
  color: rgba(255,255,255,.85);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.contact__alt a:hover { color: #fff; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* ── 13. フッター ─────────────────────────────────────── */
.footer {
  background: var(--c-dark-2);
  color: rgba(255,255,255,.65);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--gap);
  padding-block: 4rem;
}

.footer__logo-img {
  display: block;
  height: 36px;
  width: auto;
  margin-bottom: 1rem;
  filter: brightness(0) invert(1);
}

.footer__company {
  font-size: .875rem;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  margin-bottom: .5rem;
}

.footer__tagline {
  font-size: .8125rem;
  line-height: 1.7;
  color: rgba(255,255,255,.4);
}

.footer__col-title {
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  margin-bottom: 1rem;
}

.footer__col-list { display: flex; flex-direction: column; gap: .625rem; }

.footer__col-list a {
  font-size: .875rem;
  color: rgba(255,255,255,.55);
  transition: color var(--dur) var(--ease);
}

.footer__col-list a:hover { color: #fff; }

.footer__nav-cols {
  display: contents;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.07);
}

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copy {
  font-size: .8125rem;
  color: rgba(255,255,255,.3);
}

.footer__bottom-lang {
  display: flex;
  gap: .375rem;
}

.lang-btn--footer {
  padding: .2rem .55rem;
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .04em;
  border-radius: 4px;
  color: rgba(255,255,255,.4);
  border: 1px solid rgba(255,255,255,.12);
}

.lang-btn--footer:hover,
.lang-btn--footer.is-active {
  color: #fff;
  border-color: rgba(255,255,255,.4);
  background: rgba(255,255,255,.08);
}

/* ── 14. レスポンシブ ─────────────────────────────────── */
@media (max-width: 1024px) {
  .why__grid { grid-template-columns: repeat(2, 1fr); }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .burger { display: flex; }

  .header__nav {
    position: fixed;
    inset-block-start: 72px;
    inset-inline: 0;
    background: rgba(7,28,63,.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1.5rem 1.25rem 2rem;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
  }

  .header__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: .25rem;
  }

  .nav-link {
    padding: .875rem 1rem;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,.85);
  }

  .nav-link:hover { background: rgba(255,255,255,.1); color: #fff; }

  .nav-link--cta { text-align: center; margin-top: .5rem; }

  .about__cards  { grid-template-columns: 1fr; }
  .products__grid { grid-template-columns: 1fr; }
  .cases__list    { grid-template-columns: 1fr; }
  .partners__grid { grid-template-columns: 1fr; }
  .why__grid     { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }

  .hero__stats {
    flex-direction: column;
    gap: 1.5rem;
    text-align: left;
  }

  .hero__stat { text-align: left; }
  .hero__stat-divider { display: none; }

  .service-row { flex-direction: column; gap: .75rem; }
  .service-row__num { font-size: 1.25rem; width: auto; }

  .company__table th { width: 40%; }

  .footer__inner { grid-template-columns: 1fr; }
  .footer__bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* ── 15. アクセシビリティ ─────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}