/* ===== DAON SEMI LLC. — minimal foundation styles ===== */
:root {
  --dn-bg: #ffffff;
  --dn-bg-alt: #f5f7fa;
  --dn-bg-dark: #0c1623;
  --dn-text: #0c1623;
  --dn-text-2: #5a6776;
  --dn-text-3: #8b96a4;
  --dn-border: #e3e7ec;
  --dn-accent: #1a3a5c;
  --dn-accent-2: #2e6db0;
  --dn-accent-hi: #5eaad0;
  --dn-nav-h: 92px;
  --dn-max: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter",
    "Pretendard", "Apple SD Gothic Neo", sans-serif;
  color: var(--dn-text);
  background: var(--dn-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.45;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* ===== NAV ===== */
.dn-nav {
  position: fixed; inset: 0 0 auto 0; height: var(--dn-nav-h); z-index: 1000;
  background: rgba(255,255,255,0.86);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--dn-border);
}
.dn-nav-inner {
  max-width: var(--dn-max); height: 100%; margin: 0 auto;
  padding: 0 24px; display: flex; align-items: center; justify-content: space-between;
}
.dn-logo { display: flex; align-items: center; height: 100%; }
.dn-logo img { height: 72px; width: auto; }
.dn-nav-links { display: flex; gap: 32px; list-style: none; }
.dn-nav-links a {
  font-size: 13px; font-weight: 500; color: var(--dn-text); opacity: 0.85;
  transition: opacity 0.18s;
}
.dn-nav-links a:hover { opacity: 1; color: var(--dn-accent-2); }
.dn-lang { font-size: 12px; font-weight: 500; display: flex; gap: 8px; align-items: center; }
.dn-lang span { color: var(--dn-text); }
.dn-lang a { color: var(--dn-text-3); }
.dn-lang a:hover { color: var(--dn-accent-2); }
.dn-lang i { color: var(--dn-border); font-style: normal; }

.dn-burger { display: none; width: 24px; height: 24px; cursor: pointer;
  flex-direction: column; justify-content: center; gap: 4px; }
.dn-burger span { display: block; height: 1.5px; background: var(--dn-text); }

.dn-mobile { display: none; position: fixed; top: var(--dn-nav-h); left: 0; right: 0;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(20px);
  padding: 20px 24px; flex-direction: column; gap: 14px;
  border-bottom: 1px solid var(--dn-border); z-index: 999;
  transform: translateY(-100%); transition: transform 0.3s ease; }
.dn-mobile.open { display: flex; transform: translateY(0); }
.dn-mobile a { font-size: 15px; color: var(--dn-text); padding: 4px 0; }

/* ===== HERO ===== */
.dn-hero {
  min-height: 92vh;
  padding: calc(var(--dn-nav-h) + 80px) 24px 60px;
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(46,109,176,0.10), transparent 70%),
    #ffffff;
  position: relative;
  overflow: hidden;
}
.dn-hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(26,58,92,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,58,92,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 50%, #000 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 50%, #000 30%, transparent 85%);
}
.dn-hero-inner {
  position: relative; z-index: 1; max-width: var(--dn-max); margin: 0 auto;
  text-align: center;
}
.dn-eyebrow {
  display: inline-block; padding: 6px 12px; border-radius: 999px;
  background: rgba(46,109,176,0.10); color: var(--dn-accent-2);
  font-size: 11px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  margin-bottom: 22px;
}
.dn-hero h1 {
  font-size: clamp(38px, 6vw, 72px); font-weight: 700; line-height: 1.06;
  letter-spacing: -0.035em; color: var(--dn-text); max-width: 880px; margin: 0 auto 18px;
}
.dn-hero h1 .accent { color: var(--dn-accent-2); }
.dn-hero p.lead {
  font-size: clamp(15px, 1.5vw, 18px); color: var(--dn-text-2);
  max-width: 620px; margin: 0 auto 36px; line-height: 1.6;
}
.dn-hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.dn-btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; padding: 12px 22px; border-radius: 8px;
  transition: all 0.18s; cursor: pointer; border: 1px solid transparent;
}
.dn-btn-primary { background: var(--dn-accent); color: #fff; }
.dn-btn-primary:hover { background: var(--dn-accent-2); }
.dn-btn-ghost { color: var(--dn-text); border-color: var(--dn-border); background: #fff; }
.dn-btn-ghost:hover { border-color: var(--dn-accent-2); color: var(--dn-accent-2); }

/* ===== SECTION shell ===== */
.dn-section { padding: 100px 24px; }
.dn-section.alt { background: var(--dn-bg-alt); }
.dn-section.dark { background: var(--dn-bg-dark); color: #fff; }
.dn-container { max-width: var(--dn-max); margin: 0 auto; }
.dn-section-head { text-align: center; margin-bottom: 56px; }
.dn-section-eyebrow {
  display: inline-block; font-size: 11px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--dn-accent-2);
  margin-bottom: 12px;
}
.dn-section h2 {
  font-size: clamp(28px, 4vw, 44px); font-weight: 700; letter-spacing: -0.02em;
  color: inherit; margin-bottom: 14px;
}
.dn-section .desc {
  font-size: clamp(15px, 1.4vw, 17px); color: var(--dn-text-2);
  max-width: 680px; margin: 0 auto; line-height: 1.6;
}
.dn-section.dark .desc { color: rgba(255,255,255,0.7); }
.dn-section.dark .dn-section-eyebrow { color: var(--dn-accent-hi); }

/* ===== ABOUT ===== */
.dn-about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.dn-about-card {
  background: #fff; border: 1px solid var(--dn-border);
  padding: 44px 36px;
}
.dn-about-card h3 {
  font-size: 13px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--dn-accent-2); margin-bottom: 14px;
}
.dn-about-card p { font-size: 15px; color: var(--dn-text-2); line-height: 1.7; }

/* ===== Cortus distributor badge (hero) ===== */
.dn-cortus-row {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  background: #ffffff;
  border: 1px solid var(--dn-border);
  border-radius: 999px;
  margin: 0 auto 36px;
  box-shadow: 0 1px 4px rgba(12,22,35,0.04);
}
.dn-cortus-row .label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--dn-text-3);
  text-transform: uppercase;
}
.dn-cortus-row img { height: 16px; width: auto; }

/* ===== Partner card Cortus mark (top) ===== */
.dn-partner-mark {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--dn-border);
}
.dn-partner-mark img { height: 32px; width: auto; }
.dn-partner-mark .stamps {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.dn-partner-mark .stamp {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dn-accent-2);
  padding: 6px 12px;
  border: 1px solid rgba(46,109,176,0.30);
  border-radius: 4px;
  background: rgba(46,109,176,0.05);
  white-space: nowrap;
}
@media (max-width: 600px) {
  .dn-partner-mark { flex-direction: column; align-items: flex-start; }
  .dn-partner-mark img { height: 36px; }
}

/* ===== CEO standalone page — top padding clears fixed nav ===== */
.dn-section.dn-ceo-page {
  padding-top: calc(var(--dn-nav-h) + 100px);
  padding-bottom: 120px;
  background: #fbfcfd;
}

/* ===== CEO MESSAGE ===== */
.dn-ceo-wrap {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.dn-ceo-quote {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 600;
  color: var(--dn-text);
  line-height: 1.36;
  letter-spacing: -0.02em;
  margin: 0 0 36px 0;
  position: relative;
}
.dn-ceo-quote::before,
.dn-ceo-quote::after {
  content: "";
  display: block;
  width: 32px;
  height: 2px;
  background: var(--dn-accent-2);
  opacity: 0.55;
  margin: 0 auto 22px;
}
.dn-ceo-quote::after { margin: 22px auto 0; }
.dn-ceo-body {
  font-size: clamp(14px, 1.3vw, 16px);
  line-height: 1.78;
  color: var(--dn-text-2);
  text-align: left;
  max-width: 620px;
  margin: 0 auto;
}
.dn-ceo-body p { margin: 0 0 16px 0; }
.dn-ceo-body p:last-child { margin-bottom: 0; }
.dn-ceo-sign {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--dn-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.dn-ceo-sign-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.01em;
}
.dn-ceo-sign-role {
  font-size: 11px;
  font-weight: 600;
  color: var(--dn-text-3);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ===== PARTNER (Cortus) ===== */
.dn-partner-card {
  background: #fff; border: 1px solid var(--dn-border);
  padding: 48px; display: grid;
  grid-template-columns: 1.1fr 1fr; gap: 48px 60px; align-items: center;
}
.dn-partner-card .left h3 {
  font-size: clamp(22px, 2.4vw, 30px); font-weight: 700;
  letter-spacing: -0.018em; margin-bottom: 14px;
}
.dn-partner-card .left p {
  font-size: 15px; color: var(--dn-text-2); line-height: 1.7; margin-bottom: 22px;
}
.dn-partner-card .left a.dn-link {
  font-size: 14px; font-weight: 600; color: var(--dn-accent-2);
}
.dn-partner-card .left a.dn-link:hover { color: var(--dn-accent); }
.dn-partner-card .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.dn-stat {
  padding: 22px 18px; border: 1px solid var(--dn-border); background: var(--dn-bg-alt);
}
.dn-stat .k {
  font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--dn-text-3); margin-bottom: 6px;
}
.dn-stat .v {
  font-size: 18px; font-weight: 700; color: var(--dn-accent); letter-spacing: -0.012em;
}

/* ===== CONTACT ===== */
.dn-contact-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.dn-contact-card {
  padding: 28px 24px; border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
}
.dn-contact-card .k {
  font-size: 11px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--dn-accent-hi); margin-bottom: 8px;
}
.dn-contact-card .v { font-size: 15px; color: #fff; font-weight: 500; }
.dn-contact-card a { color: #fff; }
.dn-contact-card a:hover { color: var(--dn-accent-hi); }

/* ===== Office location (address + Google Maps) ===== */
.dn-office {
  margin-top: 32px;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.10);
  background: #fff;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
}
.dn-office-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--dn-border);
  background: #fff;
  flex-wrap: wrap;
}
.dn-office-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.dn-office-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dn-text-3);
}
.dn-office-address {
  font-size: 14px;
  font-weight: 500;
  color: var(--dn-text);
  letter-spacing: -0.01em;
}
.dn-office-link {
  font-size: 12px;
  font-weight: 600;
  color: var(--dn-accent-2);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.dn-office-link:hover { color: var(--dn-accent); }
.dn-office-map {
  width: 100%;
  height: 260px;
  border: 0;
  display: block;
}
@media (max-width: 700px) {
  .dn-office-map { height: 200px; }
  .dn-office-head { padding: 12px 16px; }
}

/* ===== FOOTER ===== */
.dn-footer {
  background: var(--dn-bg-dark); color: rgba(255,255,255,0.7);
  padding: 48px 24px 24px;
}
.dn-footer-inner {
  max-width: var(--dn-max); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px; flex-wrap: wrap;
}
.dn-footer img { height: 47px; filter: brightness(0) invert(1); opacity: 0.85; }
.dn-footer .copy { font-size: 12px; opacity: 0.6; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .dn-nav-links { display: none; }
  .dn-lang { display: none; }
  .dn-burger { display: flex; }
  .dn-about-grid { grid-template-columns: 1fr; gap: 30px; }
  .dn-partner-card { grid-template-columns: 1fr; gap: 32px; padding: 44px 32px; }
  .dn-section { padding: 80px 20px; }
  .dn-section.dn-ceo-page {
    padding-top: calc(var(--dn-nav-h) + 60px);
    padding-bottom: 80px;
  }
}
@media (max-width: 600px) {
  .dn-hero { padding-top: 100px; min-height: 86vh; }
  .dn-partner-card .stats { grid-template-columns: 1fr; }
}