/* Linkversa — site styles
   Palette: Baltic Teal & Amber */

:root {
  --teal: #0E7C7B;
  --teal-deep: #0A5A59;
  --teal-light: #3FB5B1;
  --amber: #F2A93B;
  --amber-deep: #D98F1F;
  --ink: #0F1E2A;
  --ink-soft: #1B2F3E;
  --slate: #5B6B76;
  --mist: #E3ECEB;
  --fog: #F5F3EE;
  --white: #FFFFFF;
  --border: #D5DCDB;
  --border-dark: #3A4D5B;

  --font-head: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --radius: 16px;
  --radius-sm: 12px;
  --container: 1200px;
  --shadow: 0 10px 30px rgba(15, 30, 42, 0.08);
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--fog);
}

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

a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--teal-deep); }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
  margin: 0 0 16px;
  color: var(--ink);
}
h1 { font-size: clamp(38px, 5vw, 60px); letter-spacing: -0.035em; }
h2 { font-size: clamp(30px, 3.6vw, 42px); }
h3 { font-size: 22px; }
h4 { font-size: 18px; }
p  { margin: 0 0 16px; }
p:last-child { margin-bottom: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
}
.on-dark .eyebrow { color: var(--amber); }

.lead { font-size: 20px; color: var(--slate); max-width: 680px; }
.on-dark .lead { color: #B9C6CE; }
.muted { color: var(--slate); }

.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head .lead { margin-top: 12px; }

.on-dark { background: var(--ink); color: var(--fog); }
.on-dark h1, .on-dark h2, .on-dark h3, .on-dark h4 { color: var(--fog); }
.on-mist { background: var(--mist); }
.on-white { background: var(--white); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--teal); color: var(--white); }
.btn-primary:hover { background: var(--teal-deep); color: var(--white); }
.btn-amber { background: var(--amber); color: var(--ink); }
.btn-amber:hover { background: var(--amber-deep); color: var(--ink); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-outline:hover { border-color: var(--ink); color: var(--ink); }
.on-dark .btn-outline { color: var(--fog); border-color: var(--border-dark); }
.on-dark .btn-outline:hover { border-color: var(--fog); color: var(--fog); }
.btn-group { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 243, 238, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--border); }
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.035em;
}
.logo:hover { color: var(--ink); }
.logo svg { width: 32px; height: 30px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--slate);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 0;
  position: relative;
}
.nav-links a:hover, .nav-links a.is-active { color: var(--ink); }
.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}
.nav-cta { display: inline-flex; }
.nav-cta .btn { height: 44px; padding: 0 20px; font-size: 15px; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: var(--ink);
  position: relative;
  transition: transform .2s ease, background .2s ease;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px; height: 2px;
  background: var(--ink);
  transition: transform .2s ease, top .2s ease;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 96px; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(242, 169, 59, 0.14);
  color: var(--amber);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--amber);
}
.hero h1 { margin-bottom: 20px; }
.hero .lead { margin-bottom: 32px; }
.hero-stat {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-dark);
  font-family: var(--font-head);
  font-size: 16px;
  color: #B9C6CE;
}
.hero-stat strong { color: var(--fog); font-weight: 600; }

.hero-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.hero-card {
  background: var(--fog);
  border-radius: var(--radius);
  padding: 24px;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-card:nth-child(3), .hero-card:nth-child(4) { background: var(--mist); }
.hero-card .dot { width: 10px; height: 10px; border-radius: 3px; background: var(--teal); }
.hero-card:nth-child(3) .dot, .hero-card:nth-child(4) .dot { background: var(--amber); }
.on-dark .hero-card h4 { margin: 4px 0 0; color: var(--ink); }
.hero-card p { font-size: 14px; color: var(--slate); }

/* Inner-page hero */
.page-hero { padding: 80px 0 72px; }
.page-hero h1 { max-width: 820px; }
.page-hero .lead { margin-top: 8px; }

/* ---------- Cards & grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: transparent; }
.card h3 { margin: 4px 0 0; font-size: 20px; }
.card p { color: var(--slate); font-size: 15.5px; }
.card-link { margin-top: auto; font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 6px; }
.card-link::after { content: "→"; transition: transform .18s ease; }
.card-link:hover::after { transform: translateX(3px); }

.icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--mist);
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.icon svg { width: 24px; height: 24px; }
.icon.amber { background: rgba(242, 169, 59, 0.16); color: var(--amber-deep); }

.on-mist .card { border-color: transparent; }

/* Feature list (Why) */
.feature {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.feature .num {
  flex: 0 0 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(63, 181, 177, 0.14);
  color: var(--teal-light);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.feature h4 { margin-bottom: 6px; }
.feature p { color: #B9C6CE; font-size: 15.5px; }

/* Split section */
.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px;
  align-items: center;
}
.split .lead { margin-bottom: 24px; }

/* Stat band */
.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.stat {
  padding: 28px 32px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--border);
}
.stat .value {
  font-family: var(--font-head);
  font-size: 44px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 8px;
}
.stat .label { color: var(--slate); font-size: 15px; }

/* Service detail blocks */
.service-block {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  padding: 56px 0;
  border-top: 1px solid var(--border);
}
.service-block:first-of-type { border-top: 0; padding-top: 0; }
.service-block h2 { font-size: 30px; }
.service-block .tag {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  color: var(--amber-deep);
  margin-bottom: 12px;
  display: block;
}
.service-block .lead { font-size: 18px; }
.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}
.checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 15.5px;
}
.checklist li::before {
  content: "";
  flex: 0 0 18px;
  height: 18px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--teal);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='11' fill='white'/><path d='M7 12.5l3 3 7-7' stroke='black'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='11' fill='white'/><path d='M7 12.5l3 3 7-7' stroke='black'/></svg>") center/contain no-repeat;
}
.checklist-title { font-weight: 600; font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate); margin-bottom: 16px; }

/* Industry blocks */
.industry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
  padding: 48px;
  border-radius: 20px;
  background: var(--white);
  border: 1px solid var(--border);
}
.industry + .industry { margin-top: 24px; }
.industry h2 { font-size: 30px; margin-bottom: 8px; }
.industry .sub { font-family: var(--font-head); font-size: 18px; color: var(--teal); font-weight: 600; margin-bottom: 0; }
.industry p { color: var(--slate); }

/* Mission / vision */
.mv-card {
  background: var(--ink-soft);
  border-radius: 20px;
  padding: 40px;
}
.mv-card h3 { color: var(--amber); font-size: 15px; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 14px; }
.mv-card p { font-family: var(--font-head); font-size: 22px; line-height: 1.4; color: var(--fog); font-weight: 500; }

/* ---------- CTA band ---------- */
.cta {
  padding: 80px 0;
}
.cta-inner {
  background: var(--teal);
  color: var(--white);
  border-radius: 24px;
  padding: 64px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 40px;
  align-items: center;
}
.cta-inner h2 { color: var(--white); margin-bottom: 12px; }
.cta-inner p { color: rgba(255, 255, 255, 0.85); font-size: 18px; max-width: 560px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 64px;
  align-items: start;
}
.contact-info dl { margin: 32px 0 0; }
.contact-info dt { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate); margin-bottom: 4px; }
.contact-info dd { margin: 0 0 20px; font-size: 18px; font-weight: 500; }

.form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.form .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 14px; font-weight: 600; }
.field input, .field select, .field textarea {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  background: var(--fog);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 14px;
  height: 48px;
  width: 100%;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { height: auto; min-height: 140px; padding: 12px 14px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(14, 124, 123, 0.18);
}
.field.has-error input, .field.has-error textarea, .field.has-error select { border-color: #C0392B; }
.field .error { font-size: 13px; color: #C0392B; display: none; }
.field.has-error .error { display: block; }
.checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 20px; }
.checks label { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 400; cursor: pointer; }
.checks input { width: 18px; height: 18px; accent-color: var(--teal); margin: 0; }
.form-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.form-footer .note { font-size: 13px; color: var(--slate); }
.form-success {
  display: none;
  grid-column: 1 / -1;
  padding: 20px 24px;
  border-radius: 12px;
  background: rgba(14, 124, 123, 0.1);
  color: var(--teal-deep);
  font-weight: 500;
}
.form.is-sent .form-success { display: block; }
.form.is-sent .field, .form.is-sent .form-footer { display: none; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #B9C6CE;
  padding: 72px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 0.7fr));
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-dark);
}
.site-footer .logo { color: var(--fog); margin-bottom: 16px; }
.site-footer .tagline { font-family: var(--font-head); color: var(--fog); font-weight: 500; margin-bottom: 8px; }
.site-footer p { font-size: 15px; max-width: 380px; }
.site-footer h4 { color: var(--fog); font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 18px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer ul a { color: #B9C6CE; font-size: 15px; }
.site-footer ul a:hover { color: var(--fog); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 13px;
  color: #7F909B;
}

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-grid, .split, .service-block, .industry, .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .cta-inner { grid-template-columns: minmax(0, 1fr); padding: 48px; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .section { padding: 64px 0; }
  .hero { padding: 56px 0 64px; }
  .page-hero { padding: 56px 0 48px; }
  .grid-2, .grid-3, .grid-4, .stats, .checklist, .checks, .form { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .industry { padding: 28px; }
  .form { padding: 24px; }
  .cta-inner { padding: 36px 28px; border-radius: 18px; }
  .card { padding: 24px; }

  .nav-toggle { display: inline-flex; }
  .nav-cta { display: none; }
  .nav-links {
    position: absolute;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--fog);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 16px;
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { display: block; padding: 14px 0; font-size: 17px; border-bottom: 1px solid var(--border); }
  .nav-links li:last-child a { border-bottom: 0; }
  .nav-links a.is-active::after { display: none; }
  .nav-links a.is-active { color: var(--teal); }
}