:root {
  --ink: #0B1220;
  --navy: #1E2A5A;
  --teal: #37D3C0;
  --bg: #FFFFFF;
  --bg-alt: #F7F8FA;
  --muted: #5B6472;
  --hairline: #E6E8EC;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--hairline);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-logo {
  display: block;
  width: 40px;
  height: 40px;
}

.brand-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* ---------- Language switcher ---------- */

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.lang-switch button {
  font-family: "Inter", sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  background: none;
  border: none;
  padding: 0.25rem 0.1rem;
  cursor: pointer;
}

.lang-switch button[aria-pressed="true"] {
  color: var(--ink);
  border-bottom: 2px solid var(--teal);
}

.lang-switch button:hover { color: var(--ink); }

.lang-sep { color: var(--hairline); }

/* ---------- Buttons & links ---------- */

.btn {
  display: inline-block;
  font-family: "Inter", sans-serif;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  padding: 0.7rem 1.4rem;
  border-radius: 2px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--navy);
  color: #FFFFFF;
}

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

.link-secondary {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

.link-secondary:hover { border-bottom-color: var(--teal); }

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

.hero {
  padding: 5.5rem 0 6rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  letter-spacing: -0.03em;
  max-width: 18ch;
}

.hero-sub {
  margin-top: 1.75rem;
  max-width: 620px;
  font-size: 1.125rem;
  color: var(--muted);
}

.hero-ctas {
  margin-top: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  flex-wrap: wrap;
}

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

.section {
  padding: 5rem 0;
  border-top: 1px solid var(--hairline);
}

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

.section h2 {
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  max-width: 24ch;
}

/* ---------- What we do ---------- */

.what-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem 4rem;
}

.what-item {
  border-top: 1px solid var(--hairline);
  padding-top: 1.5rem;
}

.what-item h3 {
  font-size: 1.25rem;
}

.what-item p {
  margin-top: 0.6rem;
  color: var(--muted);
  max-width: 46ch;
}

/* ---------- How we work ---------- */

.how-lead {
  margin-top: 1.75rem;
  max-width: 680px;
  font-size: 1.25rem;
  line-height: 1.6;
}

.steps {
  margin-top: 3rem;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.steps li {
  border-top: 1px solid var(--hairline);
  padding-top: 1.25rem;
}

.step-num {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--teal);
  letter-spacing: 0.05em;
}

.step-title {
  display: block;
  margin-top: 0.5rem;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

/* ---------- About ---------- */

.about-body {
  margin-top: 2rem;
  max-width: 760px;
  font-size: 1.0625rem;
  color: var(--ink);
}

.about-link {
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--teal);
}

.about-link:hover {
  color: var(--navy);
}

/* ---------- Contact ---------- */

.contact-sub {
  margin-top: 1.25rem;
  max-width: 560px;
  font-size: 1.125rem;
  color: var(--muted);
}

#contact-form {
  margin-top: 2.5rem;
  max-width: 560px;
}

.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

.field {
  margin-bottom: 1.4rem;
}

.field label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.field input,
.field textarea {
  width: 100%;
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 0.7rem 0.85rem;
}

.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--teal);
  outline-offset: -1px;
  border-color: var(--teal);
}

.form-status {
  margin-top: 1rem;
  font-weight: 600;
  min-height: 1.5em;
}

.form-status.ok { color: var(--navy); }
.form-status.err { color: #B4232C; }

.contact-email {
  margin-top: 2.5rem;
}

.contact-email a {
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--teal);
}

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

.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.footer-logo {
  width: 28px;
  height: 28px;
}

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

@media (max-width: 459px) {
  .brand-name { display: none; }
  .header-right { gap: 0.75rem; }
  .site-header .btn {
    font-size: 0.875rem;
    padding: 0.55rem 1rem;
  }
}

@media (min-width: 720px) {
  .container { padding: 0 2rem; }

  .what-grid { grid-template-columns: 1fr 1fr; }

  .steps { grid-template-columns: 1fr 1fr 1fr; }
}