/* Conrad Technical Services — brand colors per company letterhead standard */
:root {
  --cts-black: #000000;
  --cts-green: #6FCF3A;
  --cts-charcoal: #2D2D2D;
  --cts-white: #FFFFFF;
  --cts-offwhite: #F7F8F6;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--cts-black);
  background: var(--cts-white);
  line-height: 1.55;
}

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

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }

/* Header */
.site-header {
  background: var(--cts-black);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 24px;
}

.logo { height: 48px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--cts-white);
  font-size: 15px;
  font-weight: 500;
}

.main-nav a:hover { color: var(--cts-green); }

.nav-cta {
  background: var(--cts-green);
  color: var(--cts-black) !important;
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: 700;
}

.nav-cta:hover { opacity: 0.9; color: var(--cts-black) !important; }

.accent-line {
  height: 3px;
  background: var(--cts-green);
}

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--cts-black) 0%, #141414 100%);
  color: var(--cts-white);
  padding: 88px 0 72px;
}

.hero-inner { max-width: 760px; }

.eyebrow {
  color: var(--cts-green);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 14px;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  margin-bottom: 18px;
}

.hero-sub {
  font-size: 18px;
  color: #DADADA;
  margin-bottom: 32px;
}

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

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--cts-green);
  color: var(--cts-black);
}

.btn-primary:hover { opacity: 0.9; }

.btn-secondary {
  background: transparent;
  color: var(--cts-white);
  border-color: var(--cts-white);
}

.btn-secondary:hover { background: rgba(255,255,255,0.1); }

/* Services */
.services {
  padding: 72px 0;
  background: var(--cts-offwhite);
}

.services h2 {
  text-align: center;
  font-size: 30px;
  margin-bottom: 40px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--cts-white);
  border: 1px solid #E4E4E4;
  border-top: 4px solid var(--cts-green);
  border-radius: 6px;
  padding: 32px 28px;
}

.service-icon { font-size: 32px; margin-bottom: 12px; }

.service-card h3 { font-size: 20px; }

.service-card p { margin: 0; color: var(--cts-charcoal); }

/* Commercial */
.commercial {
  padding: 72px 0;
  background: var(--cts-black);
  color: var(--cts-white);
}

.commercial-intro {
  max-width: 760px;
  margin-bottom: 40px;
}

.commercial-text h2 { font-size: 30px; }

.commercial-text p { color: #D8D8D8; font-size: 17px; }

.commercial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.commercial-col h3 {
  font-size: 18px;
  color: var(--cts-green);
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.commercial-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.commercial-list li {
  position: relative;
  padding-left: 28px;
  font-size: 16px;
  color: var(--cts-white);
}

.commercial-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--cts-green);
  border-radius: 2px;
}

.commercial-note {
  margin-top: 16px;
  font-size: 14px;
  color: #B8B8B8;
  font-style: italic;
}

/* About */
.about { padding: 72px 0; }

.about-inner { max-width: 760px; }

.about h2 { font-size: 30px; }

.about p { color: var(--cts-charcoal); font-size: 17px; }

/* Quote / Contact */
.quote-section {
  background: var(--cts-black);
  color: var(--cts-white);
  padding: 72px 0;
}

.quote-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.quote-copy h2 { font-size: 30px; }

.quote-copy p { color: #D8D8D8; }

.contact-list {
  list-style: none;
  padding: 0;
  margin-top: 24px;
}

.contact-list li { margin-bottom: 10px; font-size: 16px; }

.contact-list a { color: var(--cts-green); font-weight: 600; }

.quote-form {
  background: var(--cts-white);
  color: var(--cts-black);
  padding: 32px;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.quote-form label { font-size: 13px; font-weight: 700; margin-top: 10px; color: var(--cts-charcoal); }

.quote-form input,
.quote-form select,
.quote-form textarea {
  padding: 11px 12px;
  border: 1px solid #CCCCCC;
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  width: 100%;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: none;
  border-color: var(--cts-green);
}

.quote-form button { margin-top: 18px; }

.hidden-field { display: none; }

.form-status { min-height: 20px; font-size: 14px; margin-top: 10px; }

.form-status.success { color: #1E7B1E; font-weight: 600; }

.form-status.error { color: #B02A2A; font-weight: 600; }

/* Footer */
.site-footer {
  background: var(--cts-charcoal);
  color: #CFCFCF;
  padding: 40px 0;
  text-align: center;
}

.footer-logo {
  height: 36px;
  margin: 0 auto 16px;
  filter: brightness(0.95);
}

.footer-inner p { margin: 6px 0; font-size: 14px; }

.footer-inner a { color: var(--cts-green); }

.copyright { color: #9A9A9A; font-size: 12px; }

/* Responsive */
@media (max-width: 720px) {
  .quote-inner { grid-template-columns: 1fr; }
  .commercial-grid { grid-template-columns: 1fr; gap: 32px; }
  .main-nav { gap: 16px; }
  .hero { padding: 64px 0 48px; }
}