/* ==========================================================
   정우씨앤에어(주) — jungwooco.com  (design v2)
   CI colors: Navy #19345E (PANTONE DS 202-1 U)
              Sky  #38C6F4 (PANTONE DS 232-4 U)
   ========================================================== */

:root {
  --navy: #19345E;
  --navy-deep: #10233F;
  --navy-dark: #0C1B31;
  --sky: #38C6F4;
  --sky-dim: #7FDCF9;
  --ink: #1C2B40;
  --gray: #64748B;
  --gray-light: #94A3B8;
  --line: #E7ECF2;
  --bg-soft: #F7F9FC;
  --white: #FFFFFF;
  --radius: 14px;
  --maxw: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s;
}

.site-header.scrolled { border-bottom-color: var(--line); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand { display: flex; align-items: center; gap: 11px; }
.brand img { height: 30px; width: auto; }

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.brand-name small {
  display: block;
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--gray-light);
  letter-spacing: 0.12em;
}

.main-nav ul { display: flex; gap: 4px; }

.main-nav a {
  display: block;
  padding: 9px 16px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--gray);
  border-radius: 999px;
  transition: color 0.18s, background 0.18s;
}

.main-nav a:hover { color: var(--navy); background: var(--bg-soft); }
.main-nav a.active { color: var(--navy); }
.main-nav a.active::after {
  content: "";
  display: block;
  margin: 1px auto 0;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--sky);
}

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  border-radius: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.btn::after { content: "→"; font-weight: 500; transition: transform 0.2s var(--ease); }
.btn:hover::after { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-deep); }

.btn-outline { border-color: #C7D2DF; color: var(--navy); background: transparent; }
.btn-outline:hover { border-color: var(--navy); }

.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: #EAF8FE; }

.btn-ghost { border-color: rgba(255, 255, 255, 0.35); color: #fff; background: transparent; }
.btn-ghost:hover { border-color: #fff; }

/* ---------- Hero (home, dark) ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(56, 198, 244, 0.16), transparent 60%),
    linear-gradient(160deg, #1B3A69 0%, var(--navy) 45%, var(--navy-deep) 100%);
  color: #fff;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  right: -140px;
  bottom: -120px;
  width: 720px;
  height: 480px;
  background: url("../assets/symbol-white.svg") no-repeat center / contain;
  opacity: 0.05;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 56px;
  padding: 116px 0 112px;
}

.hero .eyebrow { color: var(--sky); }
.hero .eyebrow::before { background: var(--sky); }

.hero h1 {
  margin-top: 16px;
  font-size: clamp(2.1rem, 4.6vw, 3.1rem);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.03em;
}

.hero h1 .accent { color: var(--sky); }

.hero .lead {
  margin-top: 22px;
  font-size: 1.04rem;
  line-height: 1.85;
  color: #B9C9E2;
  max-width: 33em;
}

.hero-actions { margin-top: 38px; display: flex; gap: 12px; flex-wrap: wrap; }

.hero-art { justify-self: center; text-align: center; }
.hero-art img { width: 100%; max-width: 330px; margin: 0 auto; }

.hero-wordmark {
  margin-top: 22px;
  font-size: 1.9rem;
  font-weight: 800;
  font-style: italic;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.hero-wordmark span {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--sky-dim);
  letter-spacing: 0.22em;
}

/* ---------- Sections ---------- */
.section { padding: 104px 0; }
.section.soft { background: var(--bg-soft); }

.section-head { margin-bottom: 56px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gray-light);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1.5px;
  background: var(--sky);
}

.section-head h2 {
  margin-top: 14px;
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.section-head p { margin-top: 14px; color: var(--gray); max-width: 44em; }

/* ---------- Cards (home services) ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  counter-reset: cardnum;
}

.card {
  position: relative;
  padding: 36px 28px 40px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  transition: background 0.25s;
}

.card:first-child { border-left: 1px solid var(--line); }
.card:hover { background: var(--bg-soft); }

.card::before {
  counter-increment: cardnum;
  content: "0" counter(cardnum);
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gray-light);
  letter-spacing: 0.12em;
  margin-bottom: 26px;
  transition: color 0.25s;
}

.card:hover::before { color: var(--sky); }

.card .icon { margin-bottom: 18px; }
.card .icon svg { width: 30px; height: 30px; stroke: var(--navy); }

.card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.card p { font-size: 0.91rem; color: var(--gray); line-height: 1.75; }

.card .more {
  display: inline-block;
  margin-top: 18px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--gray-light);
  transition: color 0.2s;
}

.card:hover .more { color: var(--navy); }

/* ---------- Dark section (specialties) ---------- */
.section.dark {
  background:
    radial-gradient(1000px 460px at 12% -20%, rgba(56, 198, 244, 0.13), transparent 60%),
    linear-gradient(160deg, #1B3A69 0%, var(--navy) 50%, var(--navy-deep) 100%);
  color: #fff;
}

.section.dark .section-head h2 { color: #fff; }
.section.dark .section-head p { color: #B9C9E2; }
.section.dark .eyebrow { color: var(--sky); }
.section.dark .eyebrow::before { background: var(--sky); }

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.spec {
  padding: 34px 28px 38px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  transition: background 0.25s;
}

.spec:first-child { border-left: 1px solid rgba(255, 255, 255, 0.14); }
.spec:hover { background: rgba(255, 255, 255, 0.045); }

.spec h3 {
  font-size: 1.12rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.spec h3 small {
  display: block;
  margin-top: 5px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--sky);
  letter-spacing: 0.18em;
}

.spec p {
  margin-top: 14px;
  font-size: 0.91rem;
  color: #B9C9E2;
  line-height: 1.75;
}

.spec .more {
  display: inline-block;
  margin-top: 18px;
  font-size: 0.84rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.45);
  transition: color 0.2s;
}

.spec:hover .more { color: #fff; }

/* ---------- Fact strip ---------- */
.fact-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fact { padding: 44px 24px; text-align: center; }
.fact + .fact { border-left: 1px solid var(--line); }

.fact .num {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.fact .label {
  margin-top: 10px;
  font-size: 0.86rem;
  color: var(--gray);
  letter-spacing: 0.02em;
}

/* ---------- CTA band ---------- */
.cta-band { background: var(--bg-soft); border-top: 1px solid var(--line); }

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 88px 0;
  flex-wrap: wrap;
}

.cta-inner h2 {
  font-size: clamp(1.4rem, 2.8vw, 1.85rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
  line-height: 1.4;
}

.cta-inner p { margin-top: 10px; color: var(--gray); font-size: 0.95rem; }

/* ---------- Page hero (subpages, dark) ---------- */
.page-hero {
  position: relative;
  background:
    radial-gradient(900px 420px at 88% -20%, rgba(56, 198, 244, 0.15), transparent 60%),
    linear-gradient(160deg, #1B3A69 0%, var(--navy) 50%, var(--navy-deep) 100%);
  color: #fff;
  padding: 88px 0 76px;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -90px;
  width: 520px;
  height: 350px;
  background: url("../assets/symbol-white.svg") no-repeat center / contain;
  opacity: 0.05;
  pointer-events: none;
}

.page-hero .eyebrow { color: var(--sky); }
.page-hero .eyebrow::before { background: var(--sky); }

.page-hero h1 {
  position: relative;
  margin-top: 14px;
  font-size: clamp(1.9rem, 3.8vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
}

.page-hero p {
  position: relative;
  margin-top: 16px;
  color: #B9C9E2;
  max-width: 46em;
  line-height: 1.85;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 72px;
  align-items: start;
}

.about-copy p { color: var(--ink); line-height: 1.9; }
.about-copy p + p { margin-top: 20px; }

.info-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 2px solid var(--navy);
}

.info-table th, .info-table td {
  padding: 17px 6px;
  text-align: left;
  font-size: 0.94rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.info-table th {
  width: 30%;
  color: var(--navy);
  font-weight: 700;
  white-space: nowrap;
  padding-right: 20px;
}

.info-table td { color: var(--ink); }
.info-table a:hover { color: var(--sky); }

/* ---------- Services ---------- */
.service-list { counter-reset: svc; }

.service-item {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 40px;
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}

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

.service-title { display: flex; align-items: flex-start; gap: 18px; }
.service-title .icon { display: none; }

.service-title::before {
  counter-increment: svc;
  content: "0" counter(svc);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gray-light);
  letter-spacing: 0.12em;
  line-height: 2.1;
}

.service-title h3 {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.service-title small {
  display: block;
  margin-top: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gray-light);
  letter-spacing: 0.18em;
}

.service-body p { color: var(--gray); font-size: 0.96rem; line-height: 1.85; }

.service-body ul { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }

.service-body li {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy);
  border: 1px solid var(--line);
  padding: 6px 14px;
  border-radius: 999px;
  background: #fff;
}

/* ---------- Process ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  counter-reset: step;
  border-top: 1px solid var(--line);
}

.step {
  position: relative;
  padding: 30px 22px 8px;
  border-right: 1px solid var(--line);
}

.step:last-child { border-right: 0; }
.step:first-child { padding-left: 0; }

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--sky);
  letter-spacing: 0.12em;
  margin-bottom: 14px;
}

.step h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.01em;
}

.step p { margin-top: 8px; font-size: 0.83rem; color: var(--gray); line-height: 1.7; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.contact-cards { display: grid; }

.contact-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 26px 4px;
  border-bottom: 1px solid var(--line);
}

.contact-card:first-child { border-top: 2px solid var(--navy); }

.contact-card .icon { padding-top: 3px; }
.contact-card .icon svg { width: 22px; height: 22px; stroke: var(--sky); }

.contact-card h3 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gray-light);
  letter-spacing: 0.08em;
}

.contact-card p { margin-top: 4px; font-size: 1.02rem; font-weight: 700; color: var(--navy); }
.contact-card small { display: block; margin-top: 3px; font-size: 0.83rem; color: var(--gray); font-weight: 400; }
.contact-card a:hover { color: var(--sky); }

/* ---------- Form ---------- */
.contact-form { padding-top: 4px; }

.contact-form h3 {
  color: var(--navy);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 26px;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.field label .req { color: var(--sky); }

.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font: inherit;
  font-size: 0.94rem;
  color: var(--ink);
  background: var(--bg-soft);
  transition: border-color 0.18s, background 0.18s, box-shadow 0.18s;
}

.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--sky);
  box-shadow: 0 0 0 3px rgba(56, 198, 244, 0.14);
}

.field textarea { min-height: 140px; resize: vertical; }

.form-note { margin-top: 12px; font-size: 0.8rem; color: var(--gray-light); }

.form-status {
  display: none;
  margin-top: 16px;
  padding: 13px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-status.ok { display: block; background: #EAF9F0; color: #1B7A43; }
.form-status.err { display: block; background: #FDF0F0; color: #B3372F; }

/* ---------- Map ---------- */
.map-wrap {
  margin-top: 72px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.map-wrap iframe { display: block; filter: grayscale(0.2); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-dark); color: #8FA3C2; }

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  padding: 72px 0 56px;
}

.footer-brand { display: flex; align-items: center; gap: 13px; }
.footer-brand img { height: 32px; width: auto; }

.footer-brand .name { color: #fff; font-weight: 700; font-size: 1.02rem; line-height: 1.3; }

.footer-brand .name small {
  display: block;
  font-size: 0.62rem;
  font-weight: 600;
  color: #5F7499;
  letter-spacing: 0.14em;
}

.footer-info { margin-top: 24px; font-size: 0.86rem; line-height: 2; }
.footer-info a:hover { color: #fff; }

.footer-nav { justify-self: end; text-align: right; }
.footer-nav ul { display: flex; gap: 26px; }
.footer-nav a { font-size: 0.88rem; font-weight: 600; color: #A9BAD6; transition: color 0.18s; }
.footer-nav a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  font-size: 0.78rem;
  color: #5F7499;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .section { padding: 76px 0; }
  .hero-inner { grid-template-columns: 1fr; padding: 72px 0; gap: 44px; }
  .hero-art { order: -1; }
  .hero-art img { max-width: 210px; }
  .hero-wordmark { font-size: 1.5rem; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .card:nth-child(odd) { border-left: 1px solid var(--line); }
  .spec-grid { grid-template-columns: 1fr; }
  .spec, .spec:first-child { border-left: 1px solid rgba(255, 255, 255, 0.14); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .service-item { grid-template-columns: 1fr; gap: 18px; padding: 36px 0; }
  .process { grid-template-columns: 1fr 1fr; }
  .step { padding-left: 0; border-right: 0; }
  .footer-inner { grid-template-columns: 1fr; padding: 56px 0 44px; }
  .footer-nav { justify-self: start; text-align: left; }
}

@media (max-width: 680px) {
  .nav-toggle { display: block; }

  .main-nav {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    display: none;
    box-shadow: 0 16px 32px rgba(16, 35, 63, 0.08);
  }

  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 10px 18px 18px; }
  .main-nav a { padding: 13px 10px; border-radius: 10px; }
  .main-nav a.active::after { margin: 2px 0 0; }

  .card-grid { grid-template-columns: 1fr; }
  .card, .card:nth-child(odd) { border-left: 1px solid var(--line); }
  .fact-strip { grid-template-columns: 1fr; }
  .fact + .fact { border-left: 0; border-top: 1px solid var(--line); }
  .fact { padding: 32px 16px; }
  .form-row { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; padding: 64px 0; }
  .process { grid-template-columns: 1fr; }
  .page-hero { padding: 64px 0 52px; }
}