/* ============================================
   DORCO KOREA LTD. — Design tokens
   ============================================ */
:root {
  --ink: #1A1F22;
  --steel: #2B3338;
  --steel-2: #3D474D;
  --amber: #F2A900;
  --amber-dark: #C98700;
  --teal: #1F6F6B;
  --paper-blue: #EDF1F2;
  --white: #FFFFFF;
  --line: rgba(26, 31, 34, 0.14);
  --line-on-dark: rgba(237, 241, 242, 0.18);

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", -apple-system, sans-serif;
  --font-mono: "Space Mono", "Courier New", monospace;

  --max-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.05;
  margin: 0;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--amber);
  color: var(--ink);
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--amber-dark);
  outline-offset: 3px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 10px;
}

.section-alt .eyebrow { color: var(--amber-dark); }

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 13px 26px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary { background: var(--amber); color: var(--ink); }
.btn-primary:hover { background: var(--amber-dark); }

.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--white); }

.btn-ghost { background: transparent; color: var(--paper-blue); border-color: var(--line-on-dark); }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); }

/* ============================================
   Header
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--steel);
  border-bottom: 1px solid var(--line-on-dark);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; color: var(--paper-blue); }

.brand-mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--ink);
  background: var(--amber);
  border-radius: 2px;
  padding: 4px 7px;
  line-height: 1;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  letter-spacing: 0.02em;
}

.primary-nav { display: flex; gap: 26px; }

.primary-nav a {
  color: var(--paper-blue);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  opacity: 0.85;
  transition: opacity 0.15s ease, color 0.15s ease;
}
.primary-nav a:hover { opacity: 1; color: var(--amber); }

.header-cta { padding: 10px 18px; font-size: 12.5px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span { display: block; height: 2px; background: var(--paper-blue); width: 100%; }

/* ============================================
   Hero
   ============================================ */
.hero {
  background: var(--steel);
  padding: 100px 24px 88px;
  position: relative;
  overflow: hidden;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-on-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-on-dark) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.hero .eyebrow { color: var(--amber); }

.hero h1 {
  color: var(--paper-blue);
  font-size: clamp(40px, 7vw, 80px);
  max-width: 16ch;
  text-transform: uppercase;
}

.hero-sub {
  color: rgba(237, 241, 242, 0.78);
  font-size: 18px;
  max-width: 50ch;
  margin-top: 24px;
}

.hero-actions { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }

.hero-tags { display: flex; gap: 12px; margin-top: 40px; flex-wrap: wrap; }

.spec-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper-blue);
  border: 1px solid var(--line-on-dark);
  padding: 7px 12px;
  border-radius: 2px;
}

/* ============================================
   Sections
   ============================================ */
.section { padding: 96px 24px; background: var(--white); }
.section-alt { background: var(--paper-blue); }

.section-inner { max-width: var(--max-width); margin: 0 auto; }

.section h2 {
  font-size: clamp(26px, 4vw, 40px);
  max-width: 26ch;
  margin-bottom: 48px;
  text-transform: uppercase;
}

.section-inner, .hero-inner {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.section-inner.is-visible, .hero-inner.is-visible { opacity: 1; transform: translateY(0); }

/* ============================================
   Spec cards (capabilities) — with crosshair motif
   ============================================ */
.card-grid { display: grid; gap: 26px; }
.cap-grid { grid-template-columns: repeat(4, 1fr); }

.spec-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 28px 22px 24px;
}

.spec-card::before,
.spec-card::after {
  content: "+";
  position: absolute;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--line);
  line-height: 1;
}
.spec-card::before { top: 6px; left: 8px; }
.spec-card::after { top: 6px; right: 8px; }

.spec-card-code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--teal);
  margin-bottom: 16px;
}

.spec-card h3 { font-size: 18.5px; text-transform: none; margin-bottom: 10px; }
.spec-card p { font-size: 15px; color: rgba(26,31,34,0.78); }

/* ============================================
   Spec table (products)
   ============================================ */
.spec-table {
  border: 1px solid var(--line);
  background: var(--white);
}

.spec-row {
  display: grid;
  grid-template-columns: 2fr 1.1fr 1.5fr 1.6fr;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.spec-row:last-child { border-bottom: none; }

.spec-row-head {
  background: var(--steel);
}
.spec-row-head span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper-blue);
}

.spec-row:not(.spec-row-head) span {
  font-size: 14.5px;
}

.cell-name { font-weight: 600; }
.cell-mono { font-family: var(--font-mono); color: var(--teal); font-size: 13.5px; }

.spec-footnote {
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(26,31,34,0.6);
  margin-top: 20px;
}

/* ============================================
   Process list
   ============================================ */
.process-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }

.process-list li {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.step-index {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--amber-dark);
  flex: 0 0 36px;
  padding-top: 2px;
}

.step-body h3 { font-size: 18.5px; text-transform: none; margin-bottom: 6px; }
.step-body p { font-size: 15px; color: rgba(26,31,34,0.78); max-width: 64ch; }

/* ============================================
   Quality / reach
   ============================================ */
.reach-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

.reach-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}

.chip-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }

.chip-list li {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 8px 14px;
  border-radius: 2px;
}

/* ============================================
   Contact
   ============================================ */
.contact-section { background: var(--steel); }
.contact-section .eyebrow { color: var(--amber); }
.contact-section h2 { color: var(--paper-blue); }

.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 760px; }

.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row-full { grid-column: 1 / -1; }

.contact-form label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--paper-blue);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: var(--font-body);
  font-size: 15.5px;
  padding: 11px 13px;
  border: 1px solid var(--line-on-dark);
  background: rgba(237, 241, 242, 0.06);
  color: var(--paper-blue);
  border-radius: 2px;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder { color: rgba(237,241,242,0.45); }

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--amber);
  background: rgba(237, 241, 242, 0.1);
}

.contact-form select option { color: var(--ink); }

.form-status { font-family: var(--font-mono); font-size: 13.5px; color: var(--teal); margin-top: 14px; }

/* ============================================
   Footer
   ============================================ */
.site-footer { background: var(--ink); color: var(--paper-blue); padding: 56px 24px 32px; }

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid var(--line-on-dark);
  padding-bottom: 32px;
}

.footer-brand { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; max-width: 320px; }

.footer-brand p {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: rgba(237,241,242,0.6);
  margin-top: 4px;
}

.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; }

.footer-nav a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: rgba(237,241,242,0.75);
}
.footer-nav a:hover { color: var(--amber); }

.footer-meta {
  max-width: var(--max-width);
  margin: 20px auto 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: rgba(237,241,242,0.45);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 880px) {
  .primary-nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }

  .site-header.nav-open .primary-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--steel);
    padding: 18px 24px 24px;
    gap: 18px;
    border-bottom: 1px solid var(--line-on-dark);
  }

  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .reach-grid { grid-template-columns: 1fr; gap: 28px; }

  .spec-row { grid-template-columns: 1.6fr 1fr 1.3fr; }
  .spec-row span:nth-child(4) { display: none; }
}

@media (max-width: 560px) {
  .hero { padding: 64px 20px 56px; }
  .section { padding: 64px 20px; }
  .cap-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
  .process-list li { gap: 18px; }

  .spec-row { grid-template-columns: 1fr 1fr; row-gap: 6px; }
  .spec-row span:nth-child(3) { display: none; }
  .spec-row-head span:nth-child(3) { display: none; }
}