/* ============================================================
   exhaustvalve — brand stylesheet
   Brand foundation palette:
     Deep Navy      #0E2A47  (primary, headings, footer, CTAs)
     Steel Blue     #3A5A7A  (secondary surfaces, gradients)
     Slate          #44566C  (secondary / muted text)
     Cool Paper     #F2F5F8  (alternate section backgrounds)
     Ink            #11161C  (body text)
     Verified Teal  #18A999  (accent: links, checks, highlights)
     White          #FFFFFF
   ============================================================ */

:root {
  --primary: #0E2A47;
  --primary-dark: #0A1F37;
  --navy: #0E2A47;
  --navy-dark: #0A1F37;
  --steel: #3A5A7A;
  --slate: #44566C;
  --ink: #11161C;
  --muted: #44566C;
  --tint: #E7EEF4;
  --bg-soft: #F2F5F8;
  --accent: #18A999;
  --accent-dark: #13877A;
  --white: #FFFFFF;
  --border: #D5DEE8;
  --radius: 14px;
  --shadow: 0 8px 28px rgba(14, 42, 71, 0.12);
  --maxw: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  font-size: 16.5px;
}

img { max-width: 100%; }

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

/* ---------- Header / nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--navy);
  letter-spacing: -0.3px;
}

.brand .logo-mark {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.brand .brand-no { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover { color: var(--accent); }

.nav-links a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.nav-cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 10px 20px !important;
  border-radius: 8px;
  border-bottom: none !important;
}

.nav-cta:hover { background: var(--primary-dark); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 1.2rem;
  color: var(--navy);
  cursor: pointer;
}

/* ---------- Hero ---------- */

.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(24, 169, 153, 0.16), transparent 60%),
    linear-gradient(180deg, var(--tint), var(--white) 85%);
  padding: 86px 0 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.83rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.3rem);
  line-height: 1.12;
  color: var(--navy);
  letter-spacing: -1px;
  margin: 0 0 18px;
}

h1 .highlight { color: var(--accent); }

.lead {
  font-size: 1.16rem;
  color: var(--muted);
  margin: 0 0 30px;
  max-width: 56ch;
}

.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 1rem;
  transition: transform 0.12s ease, background 0.12s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 6px 18px rgba(14, 42, 71, 0.28);
}

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

.btn-ghost {
  background: var(--white);
  color: var(--primary-dark);
  border: 2px solid var(--primary);
}

.btn-ghost:hover { background: var(--tint); }

.hero-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.hero-card h3 {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 1.05rem;
}

.hero-card ul { margin: 0; padding: 0; list-style: none; }

.hero-card li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.97rem;
}

.hero-card li:last-child { border-bottom: none; }

.check {
  color: var(--accent);
  font-weight: 800;
  flex-shrink: 0;
}

/* ---------- Stats strip ---------- */

.stats {
  background: var(--navy);
  color: var(--white);
  padding: 34px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
}

.stat-num span { color: #4FD0C1; }

.stat-label { color: #AFC0D4; font-size: 0.92rem; }

/* ---------- Sections ---------- */

section { padding: 76px 0; }

.section-soft { background: var(--bg-soft); }

.section-tint { background: var(--tint); }

.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }

h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  color: var(--navy);
  letter-spacing: -0.6px;
  margin: 0 0 12px;
}

.section-head p { color: var(--muted); font-size: 1.08rem; margin: 0; }

h3 { color: var(--navy); }

/* ---------- Cards ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.card-grid.two { grid-template-columns: repeat(2, 1fr); }

.card-grid.four { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card .icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.card h3 { margin: 0 0 10px; font-size: 1.13rem; }

.card p { margin: 0; color: var(--muted); font-size: 0.97rem; }

.card ul { color: var(--muted); font-size: 0.95rem; padding-left: 20px; margin: 10px 0 0; }

.card-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
}

.card-link:hover { text-decoration: underline; }

/* ---------- Chips / badges ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 10px; }

.chip {
  background: var(--tint);
  color: var(--primary-dark);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ---------- GDPR banner ---------- */

.gdpr-banner {
  background: linear-gradient(135deg, var(--navy), var(--steel) 60%, var(--navy));
  border-radius: var(--radius);
  color: var(--white);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 36px;
  align-items: center;
}

.gdpr-banner h2 { color: var(--white); }

.gdpr-banner p { color: #C9D9F0; }

.gdpr-badges { display: flex; flex-direction: column; gap: 12px; }

.gdpr-badge {
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  padding: 13px 18px;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.gdpr-badge .flag { font-size: 1.2rem; }

/* ---------- Process steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  counter-reset: step;
}

.step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  position: relative;
}

.step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.step h3 { font-size: 1rem; margin: 0 0 8px; }

.step p { font-size: 0.88rem; color: var(--muted); margin: 0; }

/* ---------- Split layout ---------- */

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

.split .body p { color: var(--muted); }

.feature-list { list-style: none; margin: 20px 0 0; padding: 0; }

.feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
}

.feature-list strong { color: var(--navy); }

.feature-list p { margin: 2px 0 0; font-size: 0.95rem; }

/* ---------- Tables ---------- */

.table-wrap { overflow-x: auto; }

table.pricing {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table.pricing th {
  background: var(--navy);
  color: var(--white);
  text-align: left;
  padding: 14px 18px;
  font-size: 0.95rem;
}

table.pricing td {
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--ink);
}

table.pricing tr:nth-child(even) td { background: var(--bg-soft); }

/* ---------- CTA section ---------- */

.cta {
  background: linear-gradient(135deg, var(--navy), var(--accent));
  color: var(--white);
  text-align: center;
  border-radius: var(--radius);
  padding: 56px 32px;
}

.cta h2 { color: var(--white); }

.cta p { color: #D8E8FF; max-width: 60ch; margin: 0 auto 28px; }

.cta .btn-ghost {
  background: var(--white);
  border-color: var(--white);
  color: var(--primary-dark);
}

/* ---------- Forms ---------- */

.form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-field { display: flex; flex-direction: column; gap: 6px; }

.form-field.full { grid-column: 1 / -1; }

.form-field label { font-weight: 700; font-size: 0.92rem; color: var(--navy); }

.form-field input,
.form-field select,
.form-field textarea {
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px 14px;
  font-size: 0.97rem;
  font-family: inherit;
  color: var(--ink);
  background: var(--white);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--muted);
}

.consent input { margin-top: 4px; }

/* ---------- Prose pages (privacy etc.) ---------- */

.prose { max-width: 820px; margin: 0 auto; }

.prose h2 { font-size: 1.45rem; margin-top: 40px; }

.prose h3 { font-size: 1.15rem; margin-top: 28px; }

.prose p, .prose li { color: var(--ink); font-size: 1rem; }

.prose .updated { color: var(--muted); font-size: 0.9rem; }

/* ---------- Page hero (inner pages) ---------- */

.page-hero {
  background: linear-gradient(180deg, var(--tint), var(--white));
  padding: 64px 0 48px;
  text-align: center;
}

.page-hero p { color: var(--muted); max-width: 64ch; margin: 0 auto; font-size: 1.1rem; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy);
  color: #AFC3E0;
  padding: 56px 0 28px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 36px;
}

.site-footer h4 {
  color: var(--white);
  margin: 0 0 14px;
  font-size: 1rem;
}

.site-footer ul { list-style: none; margin: 0; padding: 0; }

.site-footer li { margin-bottom: 9px; }

.site-footer a { color: #AFC3E0; text-decoration: none; font-size: 0.94rem; }

.site-footer a:hover { color: var(--white); }

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.footer-brand .brand-no { color: var(--accent); }

.footer-logo {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  /* recolor the navy mark to white for the dark footer */
  filter: brightness(0) invert(1);
}

.footer-tagline {
  color: #8FA3BC;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.footer-note { font-size: 0.9rem; max-width: 40ch; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.88rem;
}

.eu-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .hero-grid, .split, .gdpr-banner { grid-template-columns: 1fr; }
  .card-grid, .card-grid.four { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .card-grid, .card-grid.four, .card-grid.two, .steps, .form-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .gdpr-banner { padding: 32px 24px; }
}