/* ==========================================================================
   인수화학 주식회사 — Corporate site (German-style clean industrial layout)
   ========================================================================== */

:root {
  --navy-950: #0a1628;
  --navy-900: #0d1e33;
  --navy-800: #122a45;
  --navy-700: #1a3b5c;
  --blue-600: #1e5fa8;
  --blue-500: #2b7bd1;
  --blue-accent: #3b9eff;
  --ink: #16212e;
  --slate-600: #4d5c6c;
  --slate-500: #6b7a8c;
  --slate-200: #e3e8ee;
  --slate-100: #eef1f5;
  --paper: #ffffff;
  --off-white: #f6f8fa;
  --line: #e1e6ec;
  --font-kr: 'Noto Sans KR', sans-serif;
  --font-en: 'Inter', sans-serif;
  --radius: 10px;
  --shadow-sm: 0 2px 10px rgba(10, 22, 40, 0.06);
  --shadow-md: 0 12px 32px rgba(10, 22, 40, 0.12);
  --shadow-lg: 0 24px 60px rgba(10, 22, 40, 0.18);
  --container-w: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-kr);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 800; letter-spacing: -0.02em; }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
  background: var(--navy-900);
  color: #fff;
  padding: 10px 16px;
  border-radius: 6px;
  z-index: 999;
}
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin: 0 0 14px;
}
.kicker.light { color: var(--blue-accent); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 15.5px;
  border: 2px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
}
.button-primary {
  background: var(--blue-600);
  color: #fff;
  border-color: var(--blue-600);
}
.button-primary:hover { background: var(--blue-500); border-color: var(--blue-500); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.button-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.55);
}
.button-ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-2px); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--blue-600);
  border-bottom: 2px solid var(--blue-600);
  padding-bottom: 4px;
}
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }

/* ---------------------------- HEADER ---------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  background: rgba(10, 22, 40, 0.0);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(10, 22, 40, 0.94);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  backdrop-filter: blur(6px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand-mark {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 6px 12px;
  box-shadow: var(--shadow-sm, 0 2px 6px rgba(0,0,0,0.12));
}
.brand-mark.small { height: 38px; padding: 5px 10px; }
.brand-name { display: flex; flex-direction: column; color: #fff; }
.brand-name strong { font-size: 16.5px; font-weight: 800; }
.brand-name small { font-size: 11px; letter-spacing: 0.05em; color: rgba(255,255,255,0.65); font-family: var(--font-en); }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.primary-nav a {
  color: rgba(255,255,255,0.86);
  font-weight: 600;
  font-size: 15px;
  transition: color .2s ease;
  position: relative;
}
.primary-nav a:hover { color: #fff; }
.primary-nav a.nav-contact {
  background: var(--blue-600);
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
}
.primary-nav a.nav-contact:hover { background: var(--blue-500); }

.menu-button {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none;
  border: none;
  padding: 0;
}
.menu-button span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: all .25s ease;
}
.menu-button.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-button.open span:nth-child(2) { opacity: 0; }
.menu-button.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------- HERO ---------------------------- */
.hero {
  position: relative;
  min-height: clamp(560px, 88vh, 880px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy-950);
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 62% 48%;
  transform: scale(1.22);
  filter: saturate(1.05) contrast(1.02);
}
.hero-gradient {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(6,14,26,0.75) 0%, rgba(6,14,26,0.55) 35%, rgba(6,14,26,0.85) 75%, rgba(6,14,26,0.97) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 140px;
  padding-bottom: 120px;
  color: #fff;
}
.hero h1 {
  font-size: clamp(40px, 7vw, 76px);
  line-height: 1.08;
  margin-bottom: 26px;
  font-family: var(--font-en);
}
.hero h1 span {
  background: linear-gradient(90deg, #4fa3ff, #8fd0ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-copy {
  font-size: 18px;
  color: rgba(255,255,255,0.86);
  max-width: 620px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.scroll-cue {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-family: var(--font-en);
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ---------------------------- FACTS STRIP ---------------------------- */
.facts {
  background: var(--navy-900);
  padding: 46px 0;
}
.fact-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  text-align: center;
}
.fact-grid article {
  color: #fff;
  padding: 0 8px;
  border-right: 1px solid rgba(255,255,255,0.14);
}
.fact-grid article:last-child { border-right: none; }
.fact-grid strong {
  display: block;
  font-family: var(--font-en);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  color: #fff;
}
.fact-grid strong span {
  font-size: 0.5em;
  color: var(--blue-accent);
  font-weight: 700;
  margin-left: 2px;
}
.fact-grid p {
  font-size: 13.5px;
  color: rgba(255,255,255,0.68);
  margin-top: 6px;
}

/* ---------------------------- SECTION GENERIC ---------------------------- */
.section { padding: 110px 0; }
.section-heading { max-width: 720px; margin-bottom: 56px; }
.section-heading h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.22; color: var(--navy-950); }
.section-heading.horizontal {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  max-width: none;
}
.section-heading.horizontal p:not(.kicker) {
  color: var(--slate-600);
  max-width: 340px;
  font-size: 15.5px;
  padding-bottom: 6px;
}
.section-sub { color: var(--slate-600); font-size: 16px; margin-top: 18px; max-width: 640px; }

/* ---------------------------- COMPANY ---------------------------- */
.company { background: var(--off-white); }
.split-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: start;
}
.section-intro h2 { font-size: clamp(30px, 3.6vw, 42px); color: var(--navy-950); margin-bottom: 26px; line-height: 1.25; }
.large-copy p { font-size: 18px; color: var(--slate-600); margin-bottom: 20px; }
.large-copy p:last-child { margin-bottom: 0; }

/* ---------------------------- CEO GREETING ---------------------------- */
.greeting { background: #fff; }
.greeting-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: start;
}
.greeting-heading h2 { font-size: clamp(30px, 3.6vw, 42px); color: var(--navy-950); margin-bottom: 18px; line-height: 1.25; }
.greeting-quote-icon { font-size: 34px; color: var(--blue-500); opacity: 0.35; }
.greeting-copy { position: relative; padding-left: 28px; border-left: 3px solid var(--blue-500); }
.greeting-copy p { font-size: 17px; color: var(--slate-600); margin-bottom: 20px; line-height: 1.75; }
.greeting-copy p:last-child { margin-bottom: 0; }
.greeting-copy p strong { color: var(--navy-950); font-weight: 700; }
.greeting-signature { color: var(--navy-950) !important; font-weight: 700; font-size: 16.5px !important; text-align: right; }

/* ---------------------------- ESSENTIALS ---------------------------- */
.essentials { background: var(--navy-950); padding: 100px 0; color: #fff; }
.essentials-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; }
.essentials-heading h2 { font-size: clamp(28px, 3.2vw, 38px); color: #fff; line-height: 1.28; }
.essentials-list { display: flex; flex-direction: column; gap: 30px; }
.essentials-list article { display: flex; gap: 22px; padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,0.12); }
.essentials-list article:last-child { border-bottom: none; padding-bottom: 0; }
.essentials-list span {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 26px;
  color: var(--blue-accent);
  min-width: 48px;
}
.essentials-list h3 { font-size: 19px; color: #fff; margin-bottom: 8px; }
.essentials-list p { color: rgba(255,255,255,0.68); font-size: 15px; }

/* ---------------------------- PRODUCT ---------------------------- */
.product-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}
.product-image-wrap {
  position: sticky;
  top: 110px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.product-image-wrap img { width: 100%; height: 420px; object-fit: cover; }
.product-image-wrap span {
  display: block;
  background: var(--navy-950);
  color: rgba(255,255,255,0.75);
  font-size: 13px;
  padding: 12px 16px;
  text-align: center;
}
.product-copy h2 { font-size: clamp(28px, 3.4vw, 40px); color: var(--navy-950); margin-bottom: 22px; line-height: 1.28; }
.product-copy > p:not(.kicker) { color: var(--slate-600); font-size: 16.5px; margin-bottom: 32px; }

.feature-list { margin: 0 0 34px; display: flex; flex-direction: column; gap: 12px; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--slate-600);
  line-height: 1.55;
}
.feature-list li i { color: var(--blue-500); font-size: 15px; margin-top: 3px; flex-shrink: 0; }

.spec-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 0 0 30px;
  border-top: 1px solid var(--line);
}
.spec-list div {
  display: flex;
  justify-content: space-between;
  padding: 15px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.spec-list dt { color: var(--slate-500); font-weight: 600; }
.spec-list dd { margin: 0; font-weight: 700; color: var(--navy-950); text-align: right; }

.spec-highlight {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  background: linear-gradient(135deg, var(--navy-900), var(--blue-600));
  color: #fff;
  padding: 22px 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}
.spec-highlight-num { font-family: var(--font-en); font-size: 40px; font-weight: 800; color: var(--blue-accent); }
.spec-highlight-label { font-size: 14px; line-height: 1.4; color: rgba(255,255,255,0.85); }

/* ---------------------------- PROCESS ---------------------------- */
.process { background: var(--off-white); }
.process-flow {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding: 6px 6px 22px;
  margin-bottom: 4px;
}
.process-flow li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 96px;
}
.process-flow li.arrow {
  color: var(--slate-500);
  font-size: 15px;
  min-width: 24px;
  padding-bottom: 26px;
}
.process-icon {
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--blue-600);
  box-shadow: var(--shadow-sm);
}
.process-flow strong { font-size: 13px; text-align: center; color: var(--navy-950); font-weight: 700; display: flex; flex-direction: column; gap: 3px; }
.process-flow strong small { font-size: 11.5px; font-weight: 500; color: var(--slate-500); }

.equipment-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 46px;
}
.equipment-grid figure { margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.equipment-grid img { width: 100%; height: 300px; object-fit: cover; transition: transform .4s ease; }
.equipment-grid figure:hover img { transform: scale(1.05); }

/* ---------------------------- APPLICATIONS ---------------------------- */
.applications { background: var(--paper); }
.application-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 70px;
}
.application-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
  display: flex;
  flex-direction: column;
}
.application-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.application-card img { width: 100%; height: 160px; object-fit: cover; }
.application-card > div { padding: 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.application-card span { font-family: var(--font-en); font-weight: 800; color: var(--blue-accent); font-size: 14px; }
.application-card h3 { font-size: 17px; color: var(--navy-950); line-height: 1.35; }
.application-card p { font-size: 14px; color: var(--slate-600); flex: 1; }
.application-card button {
  align-self: flex-start;
  margin-top: 6px;
  background: none;
  border: none;
  color: var(--blue-600);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0;
}
.application-card button i { transition: transform .2s ease; font-size: 12px; }
.application-card button:hover i { transform: translateX(4px); }

.usage-list { margin-bottom: 46px; }
.usage-list > .kicker { color: var(--blue-600); margin-bottom: 20px; display: block; }
.usage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.usage-item {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 30px 26px;
}
.usage-item i {
  font-size: 22px;
  color: #fff;
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-500), var(--navy-800));
  margin-bottom: 18px;
}
.usage-item h3 { font-size: 17px; color: var(--navy-950); margin-bottom: 10px; }
.usage-item p { font-size: 14.5px; color: var(--slate-600); line-height: 1.65; }

.benefits { background: var(--off-white); border-radius: var(--radius); padding: 46px; }
.benefits > .kicker { color: var(--blue-600); }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 10px;
}
.benefit-item { text-align: center; padding: 20px 10px; }
.benefit-item i {
  font-size: 26px;
  color: #fff;
  width: 62px; height: 62px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-500), var(--navy-800));
  margin: 0 auto 16px;
}
.benefit-item strong { display: block; font-size: 15.5px; color: var(--navy-950); margin-bottom: 8px; }
.benefit-item p { font-size: 13.5px; color: var(--slate-600); line-height: 1.5; }

/* ---------------------------- CAPACITY ---------------------------- */
.capacity {
  background: linear-gradient(135deg, var(--navy-950) 0%, var(--navy-800) 60%, var(--blue-600) 130%);
  color: #fff;
  padding: 110px 0;
}
.capacity-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; align-items: start; }
.capacity h2 { font-size: clamp(28px, 3.4vw, 40px); color: #fff; line-height: 1.28; }
.capacity-grid > div:last-child p { color: rgba(255,255,255,0.82); font-size: 17px; margin-bottom: 30px; }
.capacity-numbers { display: flex; gap: 40px; margin-bottom: 30px; }
.capacity-numbers strong { display: block; font-family: var(--font-en); font-size: 34px; font-weight: 800; color: var(--blue-accent); }
.capacity-numbers span { font-size: 13.5px; color: rgba(255,255,255,0.7); }
.future-plan {
  background: rgba(255,255,255,0.08);
  border-left: 3px solid var(--blue-accent);
  padding: 18px 22px;
  border-radius: 6px;
  font-size: 15px !important;
  color: rgba(255,255,255,0.88) !important;
  margin-bottom: 0 !important;
}

/* ---------------------------- PROOF / CERTIFICATION ---------------------------- */
.proof { background: var(--off-white); }
.proof-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: start; }
.proof-copy h2 { font-size: clamp(28px, 3.4vw, 38px); color: var(--navy-950); margin-bottom: 20px; line-height: 1.3; }
.proof-lead { color: var(--slate-600); font-size: 16px; margin-bottom: 30px; }
.proof-item { display: flex; gap: 18px; align-items: flex-start; margin-bottom: 22px; }
.proof-item i { font-size: 22px; color: var(--blue-600); background: #fff; border-radius: 50%; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-sm); flex-shrink: 0; }
.proof-item h3 { font-size: 16.5px; color: var(--navy-950); margin-bottom: 6px; }
.proof-item p { font-size: 14px; color: var(--slate-600); }

.proof-badges { display: flex; flex-direction: column; gap: 20px; }
.proof-badge {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.proof-badge i { font-size: 34px; color: var(--blue-600); margin-bottom: 14px; display: block; }
.proof-badge strong { display: block; font-size: 16px; color: var(--navy-950); margin-bottom: 6px; }
.proof-badge span { font-size: 13px; color: var(--slate-500); }

.proof-badge-report {
  display: block;
  padding: 20px 20px 24px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.proof-badge-report:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.proof-badge-report img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.proof-badge-report span i { margin-left: 4px; font-size: 11px; }

/* ---------------------------- PHILOSOPHY ---------------------------- */
.philosophy { background: var(--navy-950); color: #fff; padding: 110px 0; }
.philosophy-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; align-items: start; }
.philosophy h2 { font-size: clamp(28px, 3.4vw, 40px); color: #fff; line-height: 1.28; }
.philosophy blockquote {
  margin: 0 0 24px;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  border-left: 3px solid var(--blue-accent);
  padding-left: 22px;
  line-height: 1.5;
}
.philosophy-grid > div:last-child > p { color: rgba(255,255,255,0.75); font-size: 16px; margin-bottom: 34px; }
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.values div { background: rgba(255,255,255,0.06); border-radius: 8px; padding: 20px; }
.values strong { display: block; color: var(--blue-accent); font-size: 16px; margin-bottom: 8px; }
.values span { font-size: 13.5px; color: rgba(255,255,255,0.7); line-height: 1.5; }

/* ---------------------------- CONTACT ---------------------------- */
.contact { background: var(--off-white); padding: 110px 0; }
.contact-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; align-items: start; }
.contact-info h2 { font-size: clamp(28px, 3.4vw, 38px); color: var(--navy-950); line-height: 1.3; margin-bottom: 20px; }
.contact-info > p { color: var(--slate-600); font-size: 16px; margin-bottom: 36px; }
address {
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-style: normal;
}
address div { display: flex; align-items: center; gap: 14px; font-size: 15px; }
address i { width: 36px; height: 36px; border-radius: 50%; background: var(--blue-600); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; }
address span { color: var(--slate-500); min-width: 44px; font-weight: 600; }
address a, address b { color: var(--navy-950); font-weight: 700; }

.inquiry-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.inquiry-form label { display: flex; flex-direction: column; gap: 8px; font-size: 14px; font-weight: 700; color: var(--navy-950); }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: var(--off-white);
  transition: border-color .2s ease, background .2s ease;
}
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  background: #fff;
}
.inquiry-form textarea { resize: vertical; font-weight: 400; }
.privacy { flex-direction: row !important; align-items: center; gap: 10px !important; font-weight: 500 !important; font-size: 14px !important; color: var(--slate-600) !important; }
.privacy input { width: 18px; height: 18px; flex-shrink: 0; }
.submit-button { margin-top: 8px; width: 100%; padding: 16px; font-size: 16.5px; }
.form-message { min-height: 20px; font-size: 14px; font-weight: 700; color: var(--blue-600); }
.form-message.error { color: #d64545; }

/* ---------------------------- FOOTER ---------------------------- */
footer { background: var(--navy-950); color: rgba(255,255,255,0.7); padding: 50px 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 30px;
  align-items: start;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand strong { display: block; color: #fff; font-size: 15px; }
.footer-brand span { font-size: 11.5px; color: rgba(255,255,255,0.5); font-family: var(--font-en); }
.footer-meta p { font-size: 13.5px; margin-bottom: 6px; }
.footer-meta p span { color: rgba(255,255,255,0.4); }
.footer-links { text-align: right; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.footer-links a { font-size: 13px; color: rgba(255,255,255,0.6); }
.footer-links a:hover { color: #fff; }
.footer-links p { font-size: 12px; color: rgba(255,255,255,0.4); margin-top: 4px; }

/* ---------------------------- MOBILE QUICK ACTIONS ---------------------------- */
.mobile-actions {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 400;
  background: #fff;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.1);
}
.mobile-actions a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 0;
  font-weight: 700;
  font-size: 14.5px;
}
.mobile-actions a:first-child { color: var(--navy-950); border-right: 1px solid var(--line); }
.mobile-actions a:last-child { background: var(--blue-600); color: #fff; }

/* ---------------------------- RESPONSIVE ---------------------------- */
@media (max-width: 1080px) {
  .split-layout, .essentials-grid, .product-layout, .capacity-grid, .proof-grid, .philosophy-grid, .contact-grid, .greeting-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .product-image-wrap { position: static; }
  .application-grid { grid-template-columns: repeat(2, 1fr); }
  .usage-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: repeat(2, 1fr); }
  .fact-grid { grid-template-columns: repeat(3, 1fr); }
  .fact-grid article:nth-child(3) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr; text-align: left; }
  .footer-links { align-items: flex-start; text-align: left; }
}

@media (max-width: 860px) {
  .primary-nav {
    position: fixed;
    top: 78px; left: 0; right: 0; bottom: 0;
    background: var(--navy-950);
    flex-direction: column;
    align-items: flex-start;
    padding: 30px 24px;
    gap: 22px;
    transform: translateX(100%);
    transition: transform .3s ease;
    overflow-y: auto;
  }
  .primary-nav.open { transform: translateX(0); }
  .primary-nav a { font-size: 18px; width: 100%; }
  .primary-nav a.nav-contact { text-align: center; }
  .menu-button { display: flex; }

  .section { padding: 70px 0; }
  .essentials, .capacity, .philosophy, .contact { padding: 70px 0; }
  .hero-content { padding-top: 120px; padding-bottom: 90px; }
  .hero h1 { font-size: clamp(34px, 10vw, 54px); }
  .only-desktop { display: none; }

  .field-row { grid-template-columns: 1fr; }
  .application-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .equipment-grid { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }

  .mobile-actions { display: flex; }
  body { padding-bottom: 64px; }
  .section-heading.horizontal { flex-direction: column; align-items: flex-start; }
  .inquiry-form { padding: 26px; }
}

@media (max-width: 520px) {
  .fact-grid { grid-template-columns: repeat(2, 1fr); }
  .fact-grid article:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.14); }
  .fact-grid article:nth-child(even) { border-right: none; }
  .benefits { padding: 30px 20px; }
}