/* 디에이온 솔루션 — 홍보 사이트 (Flat Design, navy + gold) */

:root {
  --color-primary: #1E3A5F;
  --color-primary-soft: #2B5079;
  --color-on-primary: #FFFFFF;
  --color-secondary: #2563EB;
  --color-accent: #B45309;      /* CTA용 골드/앰버 (텍스트 대비 확보 톤) */
  --color-accent-bright: #D9A521;
  --color-background: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-foreground: #0F172A;
  --color-muted-text: #47576B;
  --color-muted: #E9EEF5;
  --color-border: #CBD5E1;

  --font-sans: "Pretendard Variable", Pretendard, -apple-system, "Segoe UI", Roboto, "Malgun Gothic", sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;

  --radius: 12px;
  --container: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

a { color: var(--color-secondary); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* ── Header ───────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-foreground);
}

.brand-mark { width: 32px; height: 32px; flex: none; }

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-nav a {
  text-decoration: none;
  color: var(--color-muted-text);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 160ms ease;
}

.site-nav a:hover { color: var(--color-primary); }

.site-nav .nav-cta {
  color: var(--color-on-primary);
  background: var(--color-primary);
  padding: 9px 18px;
  border-radius: 999px;
  transition: background 160ms ease;
}

.site-nav .nav-cta:hover { background: var(--color-primary-soft); color: var(--color-on-primary); }

/* ── Hero ─────────────────────────────── */
.hero {
  padding: var(--space-6) 0;
  background:
    linear-gradient(180deg, #EEF3F9 0%, var(--color-background) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-5);
  align-items: center;
}

.eyebrow {
  margin: 0 0 var(--space-2);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-primary);
}

.hero h1 em {
  font-style: normal;
  color: var(--color-secondary);
}

.lede {
  margin: 0 0 var(--space-4);
  font-size: 1.08rem;
  color: var(--color-muted-text);
  max-width: 34em;
}

.hero-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { background: var(--color-primary-soft); }

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

.btn-accent { background: var(--color-accent); color: #FFFFFF; }
.btn-accent:hover { background: #92400E; }

.hero-visual { display: flex; justify-content: center; }
.stack-art { width: min(420px, 100%); height: auto; }
.art-label { font-family: var(--font-sans); font-size: 15px; font-weight: 600; }
.art-label-dark { fill: var(--color-primary); }

/* ── Sections ─────────────────────────── */
.section { padding: var(--space-6) 0; }

.section-alt { background: var(--color-surface); border-block: 1px solid var(--color-muted); }

.section-title {
  margin: 0 0 var(--space-5);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-primary);
}

/* 사업분야 카드 (4개 — 데스크톱 2×2) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-3);
  transition: border-color 180ms ease, transform 180ms ease;
}

.card:hover { border-color: var(--color-secondary); transform: translateY(-3px); }

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--color-muted);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.card-icon svg { width: 26px; height: 26px; }

.card h3 { margin: 0 0 var(--space-1); font-size: 1.2rem; letter-spacing: -0.01em; }

.card p { margin: 0 0 var(--space-2); color: var(--color-muted-text); font-size: 0.97rem; }

.card-list {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.93rem;
  color: var(--color-foreground);
}

.card-list li {
  padding-left: 22px;
  position: relative;
  margin-bottom: 6px;
}

.card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--color-accent-bright);
}

/* 진행 방식 */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.process-step {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.step-no {
  display: inline-block;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-1);
}

.process-step h3 { margin: 0 0 var(--space-1); font-size: 1.05rem; }
.process-step p { margin: 0; font-size: 0.92rem; color: var(--color-muted-text); }

/* 회사소개 */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-5);
  align-items: start;
}

.about-text { color: var(--color-muted-text); margin: 0 0 var(--space-2); max-width: 36em; }

.fact-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  overflow: hidden;
}

.fact-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-2) var(--space-3);
}

.fact-list li + li { border-top: 1px solid var(--color-muted); }

.fact-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.fact-value { font-weight: 600; }
.fact-value a { color: var(--color-secondary); text-decoration: none; }
.fact-value a:hover { text-decoration: underline; }

/* 문의 */
.contact { background: var(--color-primary); }

.contact-inner {
  text-align: center;
  color: var(--color-on-primary);
  max-width: 640px;
}

.contact h2 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.contact p { margin: 0 0 var(--space-4); color: #C9D6E4; }

.btn-lg { padding: 16px 44px; font-size: 1.1rem; }

/* ── 문의 전용 페이지 (/contact/) ──────── */
.contact-page {
  padding: var(--space-6) 0;
  background: linear-gradient(180deg, #EEF3F9 0%, var(--color-background) 100%);
  min-height: 60vh;
}

.contact-page-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-5);
  align-items: start;
}

.contact-intro h1 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-primary);
}

.contact-intro-text {
  color: var(--color-muted-text);
  margin: 0 0 var(--space-4);
  max-width: 30em;
}

.contact-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.contact-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-foreground);
  font-size: 0.95rem;
  font-weight: 500;
}

.contact-points svg {
  width: 22px;
  height: 22px;
  flex: none;
  color: var(--color-accent);
}

/* 문의 폼 카드 */
.inquiry-card {
  display: grid;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-4);
}

.form-field { display: grid; gap: 8px; position: relative; }

.form-field label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-primary);
}

.form-field .req { color: var(--color-accent); }

.form-field input,
.form-field textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-foreground);
  background: var(--color-background);
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  padding: 13px 16px;
  transition: border-color 160ms ease, background 160ms ease;
  width: 100%;
}

.form-field input::placeholder,
.form-field textarea::placeholder { color: #94A3B8; }

.form-field textarea { resize: vertical; min-height: 180px; }

.form-field input:hover,
.form-field textarea:hover { border-color: #94A3B8; }

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  background: var(--color-surface);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.field-hint {
  justify-self: end;
  font-size: 0.8rem;
  color: var(--color-muted-text);
}

.inquiry-card .btn { border: 0; }
.inquiry-card .btn:disabled { opacity: 0.6; cursor: default; }
.btn-block { width: 100%; text-align: center; padding: 15px 26px; font-size: 1.05rem; }

/* 허니팟: 시각적으로 완전히 숨김 (display:none은 일부 봇이 감지) */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status { margin: 0; min-height: 1.4em; text-align: center; font-weight: 600; color: var(--color-muted-text); }
.form-status.err { color: #B91C1C; }

/* 접수 완료 화면 */
.inquiry-done {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-5) var(--space-4);
  text-align: center;
}

.inquiry-done svg {
  width: 56px;
  height: 56px;
  color: #16A34A;
  margin-bottom: var(--space-2);
}

.inquiry-done h2 {
  margin: 0 0 var(--space-1);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.inquiry-done p { color: var(--color-muted-text); margin: 0 0 var(--space-4); }

/* ── Footer ───────────────────────────── */
.site-footer {
  background: #14293F;
  color: #9FB2C6;
  font-size: 0.9rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  padding-block: var(--space-3);
}

.site-footer a { color: #C9D6E4; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ── Reveal 애니메이션 ─────────────────── */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 420ms ease, transform 420ms ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .btn, .site-nav a { transition: none; }
}

/* ── 접근성: 키보드 포커스 ─────────────── */
a:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ── 반응형 ───────────────────────────── */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .hero-visual { order: -1; }
  .stack-art { width: min(320px, 80%); }
  .card-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .contact-page-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .inquiry-card { padding: var(--space-3); }
}

@media (max-width: 560px) {
  .site-nav { gap: var(--space-2); }
  .site-nav a:not(.nav-cta) { display: none; }
  .process-grid { grid-template-columns: 1fr; }
  .hero { padding: var(--space-5) 0; }
  .section { padding: var(--space-5) 0; }
}