/* ─── KEDIP Lab Co., Ltd. — corporate site ───
   Theme: deep navy + cyan accent (network security) */

:root {
  --bg: #0a1220;
  --bg-alt: #0e1a2e;
  --panel: #14233c;
  --panel-edge: #1f3355;
  --text: #e6edf7;
  --text-dim: #9fb0c8;
  /* brand colors sampled from the kedip logo */
  --accent: #00a3df;
  --accent-strong: #0084c8;
  --accent-soft: rgba(0, 163, 223, 0.12);
  --brand-blue: #004098;
  --radius: 14px;
  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;          /* 한국어 단어 중간 줄바꿈 방지 */
  overflow-wrap: break-word;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }

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

/* ─── Nav ─── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 18, 32, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--panel-edge);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img { height: 54px; width: auto; }
.logo-sub { font-size: 0.85rem; color: var(--text-dim); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--text-dim); font-size: 0.95rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent-strong); color: #fff !important;
  padding: 8px 18px; border-radius: 999px; font-weight: 600;
}
.nav-cta:hover { background: var(--accent); }

/* ─── Hero ─── */
.hero {
  background:
    radial-gradient(ellipse 60% 50% at 75% 20%, rgba(0, 132, 200, 0.20), transparent),
    radial-gradient(ellipse 50% 40% at 15% 80%, rgba(0, 163, 223, 0.08), transparent);
  padding: 100px 0 80px;
}
.hero-inner {
  display: grid; grid-template-columns: 1.2fr 0.8fr;
  gap: 48px; align-items: center;
}
.hero-eyebrow {
  color: var(--accent); font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; font-size: 0.85rem; margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.25; font-weight: 800; margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-desc { color: var(--text-dim); font-size: 1.08rem; margin-bottom: 30px; }
.hero-desc strong { color: var(--text); }
.hero-actions { display: flex; gap: 14px; margin-bottom: 44px; }
.btn {
  display: inline-block; padding: 13px 28px; border-radius: 999px;
  font-weight: 700; font-size: 1rem; transition: all 0.2s;
}
.btn-primary { background: var(--accent-strong); color: #fff; }
.btn-primary:hover { background: var(--accent); transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--panel-edge); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.hero-stats {
  display: flex; gap: 40px; list-style: none;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 1.5rem; color: var(--accent); font-weight: 800; }
.hero-stats span { color: var(--text-dim); font-size: 0.88rem; }
.hero-visual { display: flex; justify-content: center; }
.hero-img {
  width: min(340px, 80%); border-radius: 24px;
  box-shadow: 0 24px 80px rgba(0, 132, 200, 0.28);
}

/* ─── Sections ─── */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-eyebrow {
  color: var(--accent); font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; font-size: 0.8rem; margin-bottom: 10px;
}
.section h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  font-weight: 800; margin-bottom: 18px; line-height: 1.35;
}
.section-lead {
  color: var(--text-dim); font-size: 1.05rem; max-width: 760px;
  margin-bottom: 40px;
}
.section-lead.wide { max-width: none; }
.section-lead strong { color: var(--text); }

/* ─── Brand plate ─── */
.brand-plate {
  background: #fff; border-radius: var(--radius);
  padding: 36px 48px; max-width: 460px;
  margin: 36px auto 8px;
  display: flex; justify-content: center;
}
.brand-plate img { width: 100%; max-width: 340px; }

/* ─── About / acronym ─── */
.acronym-row {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 14px; margin: 36px 0 48px;
}
.acronym-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 22px 12px; text-align: center;
}
.acronym-card span {
  display: block; font-size: 3.2rem; font-weight: 800; color: var(--accent);
  margin-bottom: 8px; line-height: 1.2;
  /* 흰색 돌출(extrude) + 그림자로 입체감 */
  text-shadow:
    1px 1px 0 #ffffff,
    2px 2px 0 #ffffff,
    3px 3px 0 #f0f4f8,
    4px 4px 0 #dbe4ee,
    7px 9px 14px rgba(0, 0, 0, 0.55);
}
.acronym-card p { color: var(--text); font-size: 0.95rem; line-height: 1.5; }
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.about-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 28px;
}
.about-card h3 { font-size: 1.1rem; margin-bottom: 12px; color: var(--accent); }
.about-card p { color: var(--text-dim); font-size: 0.95rem; }
.about-card strong { color: var(--text); }

/* ─── Tech ─── */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tech-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 30px 26px;
  transition: transform 0.2s, border-color 0.2s;
}
.tech-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.tech-icon { font-size: 2rem; margin-bottom: 14px; }
.tech-card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.tech-card p { color: var(--text-dim); font-size: 0.93rem; }

/* ─── Product ─── */
.product-hero {
  margin: 10px 0 50px;
  background: linear-gradient(180deg, var(--bg-alt), var(--panel));
  border: 1px solid var(--panel-edge); border-radius: var(--radius);
  padding: 28px clamp(12px, 4vw, 60px);
}
.hero-scene { width: 100%; max-width: 860px; height: auto; display: block; margin: 0 auto; }
.comet { transform-origin: 450px 280px; }
/* 혜성 3개 — 같은 궤도, 반시계방향, 같은 속도 (120° 간격 유지) */
.comet-uni { animation: spin-ccw 12s linear infinite; }
@keyframes spin-ccw { to { transform: rotate(-360deg); } }
.scene-lines line { stroke: var(--accent); stroke-width: 1.4; opacity: 0.28; }
.packets circle { fill: var(--accent); opacity: 0.9; }
.pulse { fill: none; stroke: var(--accent); stroke-width: 1.5; }
@media (prefers-reduced-motion: reduce) {
  .comet { animation: none; }
  .packets, .pulse { display: none; }
}
.scene-node { fill: var(--panel); stroke: rgba(0, 163, 223, 0.35); }
.scene-icon {
  stroke: #cfe4f5; fill: none; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
.scene-label {
  fill: var(--text-dim); font-size: 13px; font-weight: 600;
  text-anchor: middle; font-family: inherit;
}
.product-cols {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  margin-bottom: 56px;
}
.product-cols h3 { font-size: 1.2rem; margin-bottom: 16px; }
.product-cols .mt { margin-top: 32px; }
.product-cols p { color: var(--text-dim); }
.product-cols p strong { color: var(--text); }
.check-list { list-style: none; }
.check-list li {
  padding-left: 30px; position: relative; margin-bottom: 12px;
  color: var(--text-dim);
}
.check-list li::before {
  content: '✓'; position: absolute; left: 0; top: 0;
  color: var(--accent); font-weight: 800;
}
.usecase-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.usecase-tags span {
  background: var(--accent-soft); color: var(--accent);
  padding: 7px 16px; border-radius: 999px; font-size: 0.88rem; font-weight: 600;
}
.app-shots {
  display: flex; gap: 28px; justify-content: center; margin-bottom: 56px;
}
.app-shots figure { max-width: 260px; text-align: center; }
.app-shots img {
  border-radius: 20px; border: 1px solid var(--panel-edge);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}
.app-shots figcaption { color: var(--text-dim); font-size: 0.88rem; margin-top: 12px; }
.lineup { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.lineup-2 { grid-template-columns: repeat(2, 1fr); max-width: 800px; margin: 0 auto; }
.lineup-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 28px; text-align: center;
}
.lineup-card.featured { border-color: var(--accent); position: relative; }
.lineup-card h4 { font-size: 1.2rem; margin-bottom: 4px; }
.lineup-target { color: var(--accent); font-size: 0.88rem; margin-bottom: 16px; }
.lineup-card ul { list-style: none; color: var(--text-dim); font-size: 0.92rem; }
.lineup-card li { margin-bottom: 6px; }

/* ─── 4-col mini cards / personas ─── */
.grid-4 {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-bottom: 24px;
}
.mini-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 22px 20px;
  transition: transform 0.2s, border-color 0.2s;
}
.mini-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.mini-icon { font-size: 1.6rem; margin-bottom: 10px; }
.mini-card h4 { font-size: 1rem; margin-bottom: 8px; }
.mini-card p { color: var(--text-dim); font-size: 0.88rem; line-height: 1.6; }
.persona-list { display: flex; flex-direction: column; gap: 14px; }
.persona {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 16px 20px;
}
.persona h4 { font-size: 0.98rem; margin-bottom: 6px; }
.persona p { color: var(--text-dim); font-size: 0.9rem; }
.manual-link { text-align: center; margin-bottom: 56px; }
.manual-link a { font-weight: 700; font-size: 1.02rem; }
.feature-list li { margin-bottom: 14px; }
.feature-list strong { color: var(--accent); }

/* ─── Sub heading / diagram ─── */
.sub-heading { font-size: 1.4rem; margin: 56px 0 24px; }
.diagram-slogan {
  text-align: center; font-size: 1.3rem; margin: 8px 0 28px;
  color: var(--text);
}
.diagram-frame {
  width: 100%; height: 480px; border: 0; display: block;
  margin: 0 0 40px;
}
@media (max-width: 760px) {
  .diagram-frame { height: 800px; }
}

/* ─── Spec table ─── */
.spec-wrap {
  display: grid; grid-template-columns: 1.4fr 0.6fr; gap: 40px;
  align-items: start;
}
.spec-table {
  width: 100%; border-collapse: collapse;
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); overflow: hidden;
}
.spec-table th, .spec-table td {
  padding: 14px 20px; text-align: left;
  border-bottom: 1px solid var(--panel-edge);
  font-size: 0.95rem;
}
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }
.spec-table th {
  color: var(--accent); font-weight: 700; white-space: nowrap;
  width: 130px; background: rgba(0, 163, 223, 0.05);
}
.spec-table td { color: var(--text-dim); }
.spec-table thead th {
  width: auto; text-align: left; color: var(--text);
  background: rgba(0, 163, 223, 0.12); font-size: 1rem;
}
.spec-side h3 { font-size: 1.2rem; margin-bottom: 16px; }
.spec-side .check-list strong { color: var(--text); }
.spec-note {
  color: var(--text-dim); font-size: 0.92rem; margin-top: 20px;
  padding: 16px 18px; background: var(--panel);
  border: 1px solid var(--panel-edge); border-radius: var(--radius);
}

/* ─── Partnership ─── */
.partner-diagram {
  display: flex; align-items: stretch; justify-content: center;
  gap: 20px; flex-wrap: wrap; margin: 40px 0 28px;
}
.partner-node {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 28px 30px; text-align: center;
  flex: 1; min-width: 220px; max-width: 300px;
}
.partner-node h3 { font-size: 1.1rem; margin-bottom: 4px; }
.partner-role { color: var(--accent); font-size: 0.85rem; margin-bottom: 12px; font-weight: 600; }
.partner-node p { color: var(--text-dim); font-size: 0.92rem; }
.partner-plus, .partner-arrow {
  display: flex; align-items: center; font-size: 2rem; font-weight: 800;
  color: var(--accent);
}
.partner-result { border-color: var(--accent); }
.partner-result img { width: 72px; margin: 0 auto 12px; border-radius: 16px; }
.partner-note { color: var(--text-dim); text-align: center; max-width: 680px; margin: 0 auto; }

/* ─── Contact ─── */
.contact-box { text-align: center; }
.contact-box .section-lead { margin-left: auto; margin-right: auto; }
.contact-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  max-width: 960px; margin: 0 auto;
}
.contact-item {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: var(--radius); padding: 24px 18px;
  display: flex; flex-direction: column; gap: 6px;
}
.contact-label { color: var(--text-dim); font-size: 0.82rem; }
.contact-item a, .contact-item span:not(.contact-label) { font-weight: 600; color: var(--text); }
.contact-item a:hover { color: var(--accent); }

/* ─── Footer ─── */
.footer { border-top: 1px solid var(--panel-edge); padding: 48px 0 0; background: var(--bg-alt); }
.footer-inner {
  display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap;
  padding-bottom: 32px;
}
.footer-brand { height: 56px; width: auto; margin-bottom: 16px; }
.footer-logo { font-weight: 800; font-size: 1.1rem; margin-bottom: 8px; }
.footer-inner p { color: var(--text-dim); font-size: 0.88rem; }
.footer-links { display: flex; gap: 22px; align-items: flex-start; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent); }
.footer-copy {
  border-top: 1px solid var(--panel-edge); padding: 18px 24px;
  color: var(--text-dim); font-size: 0.82rem; text-align: center;
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-actions, .hero-stats { justify-content: center; }
  .acronym-row { grid-template-columns: repeat(5, 1fr); gap: 8px; }
  .acronym-card { padding: 14px 6px; }
  .acronym-card span { font-size: 2.2rem; }
  .about-grid, .tech-grid, .lineup, .contact-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .product-cols { grid-template-columns: 1fr; gap: 32px; }
  .spec-wrap { grid-template-columns: 1fr; gap: 32px; }
  .app-shots { flex-wrap: wrap; }
  .nav-links { gap: 14px; }
  .logo-sub { display: none; }
  .nav-links a:not(.nav-cta) { font-size: 0.85rem; }
}
@media (max-width: 560px) {
  .acronym-row { grid-template-columns: repeat(3, 1fr); }
  .partner-plus, .partner-arrow { width: 100%; justify-content: center; }
}