/* opc2all.com — product page. No scripts, no outside requests. */

:root {
  --bg: #ffffff;
  --panel: #f3f5f8;
  --ink: #14202e;
  --muted: #536173;
  --line: #dde3ea;
  --accent: #1f5fd1;
  --accent-ink: #ffffff;
  --accent-soft: #e6eefc;
  --bar: #0f1b2d;
  --bar-ink: #e7edf6;
  --shadow: 0 8px 28px rgba(15, 27, 45, 0.12);
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Ubuntu Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace;
  --gutter: 16px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1522;
    --panel: #121c2c;
    --ink: #e6ecf4;
    --muted: #9eabbd;
    --line: #233149;
    --accent: #5b8ef0;
    --accent-ink: #0d1522;
    --accent-soft: #19284a;
    --bar: #08101c;
    --shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.2; margin: 0; }

.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; }
.skip:focus { left: 8px; top: 8px; z-index: 10; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.wrap { width: 100%; max-width: 70rem; margin-inline: auto; padding-inline: var(--gutter); }
@media (min-width: 720px) { :root { --gutter: 32px; } }

/* Header bar */
.bar { background: var(--bar); color: var(--bar-ink); position: sticky; top: 0; z-index: 5; }
.bar-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--bar-ink); text-decoration: none; font: 700 1.0625rem var(--mono); }
.brand b { color: #6f9cff; font-weight: 700; }
.bar nav { display: flex; gap: 22px; flex-wrap: wrap; }
.bar nav a { color: var(--bar-ink); text-decoration: none; font-size: 0.9375rem; opacity: 0.85; }
.bar nav a:hover { opacity: 1; text-decoration: underline; }
@media (max-width: 560px) {
  .bar-row { flex-wrap: wrap; gap: 0 16px; padding-block: 10px; }
  .bar nav { width: 100%; gap: 18px; padding-top: 6px; }
  .bar nav a { font-size: 0.875rem; }
  .bar { position: static; }
}

/* Hero */
.hero { background: linear-gradient(180deg, var(--panel), var(--bg)); padding-block: 56px 48px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; } }
.kicker { margin: 0 0 8px; color: var(--accent); font-weight: 650; font-size: 0.875rem; letter-spacing: 0.06em; text-transform: uppercase; }
.hero h1 { font-size: clamp(2.25rem, 5vw, 3.25rem); letter-spacing: -0.02em; }
.hero-sub { font-size: 1.3125rem; font-weight: 500; margin: 10px 0 14px; }
.hero-text { color: var(--muted); margin: 0 0 24px; max-width: 34rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }
.btn { display: inline-block; padding: 11px 20px; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); text-decoration: none; font-weight: 600; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.hero-shot { margin: 0; }
.hero-shot img, .shot img { border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }

/* Key figures */
.facts { border-block: 1px solid var(--line); background: var(--bg); }
.facts-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.facts-row div { padding: 20px 16px; border-left: 1px solid var(--line); }
.facts-row div:first-child { border-left: 0; padding-left: 0; }
.facts-row b { display: block; font-size: 1.375rem; }
.facts-row span { color: var(--muted); font-size: 0.875rem; }
@media (max-width: 720px) {
  .facts-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts-row div { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
  .facts-row div:nth-child(-n+2) { border-top: 0; }
}

/* Sections */
.section { padding-block: 64px; }
.section.alt { background: var(--panel); }
.section h2 { font-size: 1.75rem; margin-bottom: 24px; }
.note { color: var(--muted); margin: -12px 0 20px; }

/* Features */
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 40px; margin-bottom: 40px; }
@media (max-width: 760px) { .features { grid-template-columns: minmax(0, 1fr); } }
.feature h3 { font-size: 1.125rem; padding-bottom: 8px; margin-bottom: 8px; border-bottom: 2px solid var(--accent); display: inline-block; }
.feature ul { margin: 0; padding-left: 1.125rem; }
.feature li { margin: 4px 0; }
.feature li::marker { color: var(--accent); }
.shot { margin: 0; }
.shot figcaption { color: var(--muted); font-size: 0.875rem; margin-top: 10px; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
.spec { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.spec th, .spec td { text-align: left; vertical-align: top; padding: 10px 16px; border-top: 1px solid var(--line); }
.spec thead th { border-top: 0; background: var(--panel); font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.spec tbody th { font-weight: 650; white-space: nowrap; }
.spec td { color: var(--muted); }
.spec tbody tr:nth-child(even) { background: color-mix(in srgb, var(--panel) 55%, transparent); }
.spec.two tbody th { width: 30%; }
@media (max-width: 560px) { .spec tbody th { white-space: normal; } }

/* Pricing */
.price-box { max-width: 30rem; background: var(--bg); border: 1px solid var(--line); border-top: 4px solid var(--accent); border-radius: 8px; box-shadow: var(--shadow); padding: 28px; }
.price-name { margin: 0; font-weight: 650; }
.price { margin: 4px 0 0; }
.price b { font-size: 2.75rem; letter-spacing: -0.02em; }
.price.small b { font-size: 1.75rem; }
.price-terms { color: var(--muted); margin: 2px 0 0; font-size: 0.9375rem; }
.price-list { margin: 20px 0; padding: 20px 0; border-block: 1px solid var(--line); list-style: none; display: grid; gap: 8px; }
.price-list li { padding-left: 26px; position: relative; }
.price-list li::before { content: ""; position: absolute; left: 4px; top: 0.55em; width: 10px; height: 6px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.price-addon { padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.price-avail { margin: 16px 0 0; font-weight: 600; }

/* Footer */
.foot { background: var(--bar); color: var(--bar-ink); padding-block: 28px; font-size: 0.875rem; }
.foot p { margin: 0 0 8px; }
.foot-brand { font-family: var(--mono); font-weight: 700; }
.foot-brand b { color: #6f9cff; }
.tm { opacity: 0.7; max-width: 60rem; }