/* LYNX LED LIMITED -- precision-mono design direction
   Palette: cyan #3fd0d4 (primary), white (accent), light neutral base.
   Type: monospace for labels/numbers, neutral sans for prose. */

:root {
  --cyan: #3fd0d4;
  --cyan-dark: #0d5458;
  --ink: #14181a;
  --ink-soft: #2b3235;
  --paper: #f7f8f7;
  --paper-alt: #eef1f1;
  --line: #d3dada;
  --white: #ffffff;
  --banner-h: 38px;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-sans: 'IBM Plex Sans', Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding-top: var(--banner-h);
  background: var(--paper);
  color: var(--ink-soft);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--cyan-dark); }

/* ---------- Proposal banner (fixed, unremovable) ---------- */
.proposal-banner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--banner-h);
  background: #0b0d0e;
  color: #f3f5f5;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 9999;
  padding: 0 10px;
}

/* ---------- Watermark (fixed, light, non-blocking) ---------- */
.watermark {
  position: fixed;
  inset: 0;
  z-index: 500;
  pointer-events: none;
  overflow: hidden;
}
.watermark span {
  position: absolute;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 3rem;
  color: #3a4042;
  opacity: 0.06;
  white-space: nowrap;
  transform: rotate(-30deg);
  letter-spacing: 0.08em;
}
.wm-1 { top: 6%;  left: -6%; }
.wm-2 { top: 26%; left: 46%; }
.wm-3 { top: 48%; left: -10%; }
.wm-4 { top: 68%; left: 40%; }
.wm-5 { top: 88%; left: 2%; }
.wm-6 { top: 14%; left: 78%; }

/* ---------- Header ---------- */
.site-header {
  background: var(--ink);
  border-bottom: 3px solid var(--cyan);
  position: relative;
  z-index: 800;
}
.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.logo-link { flex: 0 0 auto; line-height: 0; }
.logo { height: 34px; width: auto; }

.site-nav {
  display: flex;
  gap: 22px;
  flex: 1 1 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.site-nav a {
  color: #cdd6d6;
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

.phone-link {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--cyan);
  text-decoration: none;
  border: 1px solid var(--cyan);
  padding: 8px 12px;
  white-space: nowrap;
}
.phone-link:hover { background: var(--cyan); color: var(--ink); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid #3a4042;
  color: var(--white);
  font-size: 18px;
  padding: 6px 10px;
  cursor: pointer;
}

/* ---------- Layout helpers ---------- */
.wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  border-top: 1px solid var(--line);
  padding: 48px 0;
}
.section:first-of-type { border-top: none; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-dark);
  margin: 0 0 10px;
  display: block;
}

h1, h2, h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 16px;
  line-height: 1.25;
}
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.35rem, 3vw, 1.7rem); }

p { margin: 0 0 16px; max-width: 68ch; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}
.hero-media {
  position: relative;
  width: 100%;
  height: min(60vh, 520px);
  overflow: hidden;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}
.hero-caption {
  position: relative;
  margin: -90px 20px 0;
  max-width: 560px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 4px solid var(--cyan);
  padding: 26px 28px 28px;
  z-index: 2;
}
.hero-caption h1 { margin-bottom: 8px; }
.hero-caption p { margin-bottom: 20px; }

.tel-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  color: var(--ink);
  background: var(--cyan);
  border: 1px solid var(--cyan-dark);
  padding: 12px 18px;
}
.tel-button:hover { background: var(--cyan-dark); color: var(--white); }
.tel-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  background: var(--ink);
  color: var(--cyan);
  padding: 3px 6px;
}

/* ---------- Page header (non-home pages) ---------- */
.page-header {
  background: var(--paper-alt);
  border-bottom: 1px solid var(--line);
  padding: 44px 0 36px;
}
.page-header h1 { margin-bottom: 6px; }

/* ---------- Data sheet strip ---------- */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  border: 1px solid var(--line);
  margin: 28px 0;
}
.spec-item {
  padding: 18px 20px;
  border-left: 1px solid var(--line);
}
.spec-item:first-child { border-left: none; }
.spec-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan-dark);
  margin-bottom: 6px;
}
.spec-value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--ink);
  word-break: break-word;
}
.spec-value a { color: var(--ink); text-decoration: underline; }

/* ---------- Two column figure blocks ---------- */
.figure-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
@media (max-width: 720px) {
  .figure-row { grid-template-columns: 1fr; }
}
figure { margin: 0; }
figure img {
  border: 1px solid var(--line);
  width: 100%;
  height: auto;
}
figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-dark);
  margin-top: 8px;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin: 28px 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--ink);
  padding: 12px 20px;
}
.btn:hover { background: var(--ink); color: var(--white); }
.btn-primary {
  background: var(--cyan);
  border-color: var(--cyan-dark);
}
.btn-primary:hover { background: var(--cyan-dark); color: var(--white); }

/* ---------- Contact form ---------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 24px;
  max-width: 640px;
}
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
}
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 6px;
}
.field input,
.field textarea {
  width: 100%;
  border: 1px solid #9aa5a5;
  background: var(--white);
  padding: 10px 12px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
}
.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--cyan-dark);
  outline-offset: 1px;
}
.field textarea { min-height: 130px; resize: vertical; }
.field-error {
  display: block;
  color: #a3231f;
  font-size: 13px;
  margin-top: 5px;
  min-height: 18px;
}
.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
}
.consent input { width: auto; margin-top: 4px; }
.form-status {
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid var(--cyan-dark);
  background: var(--paper-alt);
  font-family: var(--font-mono);
  font-size: 14px;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.is-error { border-color: #a3231f; color: #a3231f; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #c7d0d0;
  border-top: 3px solid var(--cyan);
  margin-top: 40px;
  position: relative;
  z-index: 800;
}
.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 32px 20px 24px;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}
.footer-nav a { color: #c7d0d0; text-decoration: none; }
.footer-nav a:hover { color: var(--cyan); }
.footer-phone { color: var(--cyan); text-decoration: none; font-family: var(--font-mono); }
.footer-meta {
  font-size: 13px;
  color: #93a0a0;
  border-top: 1px solid #2a3234;
  padding-top: 16px;
  margin-top: 16px;
}
.proposal-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #f0c419;
  margin: 12px 0 0;
}

/* ---------- Responsive nav ---------- */
@media (max-width: 760px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ink);
    flex-direction: column;
    gap: 0;
    padding: 6px 20px 14px;
    border-bottom: 3px solid var(--cyan);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 10px 0; border-bottom: 1px solid #2a3234; }
  .nav-toggle { display: inline-block; order: 3; }
  .header-inner { flex-wrap: wrap; }
  .phone-link { order: 2; margin-left: auto; }
  .hero-caption { margin-top: -60px; }
}