/* onprem-solution.eu — plain hand-written CSS, no framework, no build step */

:root {
  --ink: #101820;
  --ink-soft: #3a4550;
  --paper: #ffffff;
  --paper-soft: #f4f6f8;
  --line: #dde3e8;
  --accent: #0d6e6e;
  --accent-dark: #0a5555;
  --warn-bg: #fff8ec;
  --warn-border: #e8c77e;
  --max: 960px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  font-size: 17px;
}

img { max-width: 100%; }

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

/* ---------- header / nav ---------- */

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0;
}

.wordmark {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.wordmark span { color: var(--accent); }

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.98rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* ---------- hero / sections ---------- */

.hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-dark);
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.15;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.7rem);
  line-height: 1.25;
  margin: 0 0 14px;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 8px;
}

.lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 40em;
}

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

.tight { padding-top: 8px; }

p { margin: 0 0 16px; }
p:last-child { margin-bottom: 0; }

ul.plain, ol.plain { padding-left: 1.15em; margin: 0 0 16px; }
ul.plain li, ol.plain li { margin-bottom: 8px; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink-soft);
}
.btn-secondary:hover { border-color: var(--ink); }

/* ---------- credibility strip ---------- */

.strip {
  background: var(--paper-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.strip .wrap { display: flex; flex-wrap: wrap; gap: 10px 28px; }
.strip span { white-space: nowrap; }

/* ---------- cards / grids ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  margin-top: 8px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 22px;
  background: var(--paper);
}
.card h3 { margin-bottom: 10px; }
.card p { color: var(--ink-soft); font-size: 0.98rem; }

.offer {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 26px;
  margin-bottom: 22px;
}
.offer h3 { margin-bottom: 4px; }
.offer .meta {
  font-size: 0.9rem;
  color: var(--accent-dark);
  font-weight: 600;
  margin-bottom: 14px;
}
.offer .hook {
  border-left: 3px solid var(--accent);
  padding-left: 14px;
  color: var(--ink-soft);
  font-style: italic;
  margin-top: 14px;
}

/* ---------- tables ---------- */

.table-wrap { overflow-x: auto; }
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
}
th, td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--paper-soft); }

/* ---------- placeholders needing real data before launch ---------- */

.todo {
  background: var(--warn-bg);
  border: 1px dashed var(--warn-border);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.92em;
}

/* ---------- diagrams ---------- */

figure.diagram {
  margin: 24px 0 0;
}
.diagram-link {
  display: block;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  background: var(--paper);
}
.diagram-link:hover {
  border-color: var(--accent);
}
.diagram-link img {
  display: block;
  width: 100%;
  height: auto;
}
figure.diagram figcaption {
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* ---------- footer ---------- */

footer.site {
  background: var(--paper-soft);
  border-top: 1px solid var(--line);
  padding: 40px 0 30px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
footer.site .cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}
footer.site h4 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
footer.site a { color: var(--ink-soft); }
footer.site .legal {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  font-size: 0.82rem;
  line-height: 1.6;
}

/* ---------- utility ---------- */

.center { text-align: center; }
.mt0 { margin-top: 0; }

/* ---------- product use-case videos ---------- */

.card video {
  display: block;
  width: 100%;
  border-radius: 4px;
  background: #000;
  margin-bottom: 14px;
}
.card .video-meta {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 6px;
}