:root {
  --color-ink: #20242b;
  --color-ink-soft: #2c313a;
  --color-primary: #0f6fdb;
  --color-primary-dark: #0958ad;
  --color-primary-light: #57a6f2;
  --color-surface: #ffffff;
  --color-surface-alt: #f2f6fc;
  --color-border: #e2e8f0;
  --color-text: #1b2027;
  --color-text-muted: #5b6472;
  --color-text-on-dark: #eef2f7;
  --color-text-on-dark-muted: #aeb9c7;

  --font-display: 'Manrope', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --space-section: clamp(3.5rem, 3rem + 3vw, 6.5rem);
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-card: 0 18px 40px -22px rgba(15, 25, 40, 0.35);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.15;
  margin: 0 0 0.6em;
}

p { margin: 0 0 1em; color: var(--color-text-muted); }
a { color: inherit; text-decoration: none; }
svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.wrap {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 200ms var(--ease-out-expo), box-shadow 200ms var(--ease-out-expo), background 200ms var(--ease-out-expo);
}
.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 14px 28px -12px rgba(15, 111, 219, 0.55);
}
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); }
.btn-primary:focus-visible { outline: 3px solid var(--color-primary-light); outline-offset: 2px; }

.btn-outline {
  background: transparent;
  color: var(--color-text-on-dark);
  border: 1.5px solid rgba(238, 242, 247, 0.4);
}
.btn-outline:hover { border-color: var(--color-text-on-dark); background: rgba(255,255,255,0.06); transform: translateY(-2px); }

.btn-ghost {
  color: var(--color-ink);
  border: 1.5px solid var(--color-border);
  padding: 0.6rem 1.1rem;
  font-size: 0.9rem;
}
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-block: 0.9rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-icon {
  width: 40px;
  height: 40px;
  display: block;
  color: var(--color-primary);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  color: var(--color-primary);
}

.brand-tagline {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-tagline-dark { color: var(--color-text-on-dark-muted); }

.nav {
  display: flex;
  gap: 1.75rem;
  margin-inline-start: auto;
  margin-inline-end: 1rem;
}
.nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  white-space: nowrap;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms var(--ease-out-expo);
}
.nav a:hover::after { transform: scaleX(1); }

.header-cta { flex-shrink: 0; }

/* ---------- Language switch ---------- */
.lang-switch { position: relative; flex-shrink: 0; }

.lang-current {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.7rem;
  border-radius: 999px;
  border: 1.5px solid var(--color-border);
  background: transparent;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-ink);
  cursor: pointer;
  transition: border-color 200ms var(--ease-out-expo), color 200ms var(--ease-out-expo);
}
.lang-current:hover, .lang-current:focus-visible { border-color: var(--color-primary); color: var(--color-primary); }

.lang-caret { width: 14px; height: 14px; transition: transform 200ms var(--ease-out-expo); }
.lang-switch.is-open .lang-caret { transform: rotate(180deg); }

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  margin: 0;
  padding: 0.4rem;
  min-width: 140px;
  list-style: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 180ms var(--ease-out-expo), transform 180ms var(--ease-out-expo), visibility 180ms;
  z-index: 50;
}
.lang-switch.is-open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }

.lang-menu button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.6rem;
  border: none;
  border-radius: 8px;
  background: none;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
}
.lang-menu button:hover, .lang-menu button:focus-visible { background: var(--color-surface-alt); color: var(--color-primary); }
.lang-menu button.is-active { color: var(--color-primary); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: radial-gradient(120% 140% at 15% -10%, var(--color-ink-soft) 0%, var(--color-ink) 55%);
  padding-top: clamp(4rem, 6vw, 6rem);
  padding-bottom: 8.5rem;
  overflow: hidden;
}

.hero-inner { max-width: 760px; }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin-bottom: 1rem;
}
.eyebrow-dark { color: var(--color-primary-dark); }

.hero h1 {
  color: var(--color-text-on-dark);
  font-size: clamp(2.1rem, 1.6rem + 2.2vw, 3.4rem);
  font-weight: 800;
}

.hero-sub {
  color: var(--color-text-on-dark-muted);
  font-size: 1.15rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-wave {
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  width: 100%;
  height: auto;
  display: block;
}

/* ---------- Trust strip ---------- */
.trust { padding-block: 2.5rem 1rem; }
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}
.trust-item svg {
  width: 30px; height: 30px;
  flex-shrink: 0;
  color: var(--color-primary);
  stroke-width: 1.4;
}
.trust-item strong {
  display: block;
  font-family: var(--font-display);
  color: var(--color-ink);
  margin-bottom: 0.2rem;
}
.trust-item span { color: var(--color-text-muted); font-size: 0.92rem; }

/* ---------- Services ---------- */
.services { padding-block: var(--space-section); background: var(--color-surface-alt); }
.services h2 { font-size: clamp(1.7rem, 1.4rem + 1.2vw, 2.4rem); }
.section-sub { max-width: 50ch; font-size: 1.05rem; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.9rem 1.7rem;
  box-shadow: var(--shadow-card);
  transition: transform 220ms var(--ease-out-expo), box-shadow 220ms var(--ease-out-expo);
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 24px 48px -20px rgba(15, 25, 40, 0.4); }

.service-icon {
  width: 40px; height: 40px;
  color: var(--color-primary);
  stroke-width: 1.5;
  margin-bottom: 1.1rem;
}

.service-card h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.service-card p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Why ---------- */
.why { padding-block: var(--space-section); }
.why-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
.why-copy h2 { font-size: clamp(1.6rem, 1.3rem + 1.1vw, 2.2rem); }

.why-card {
  background: var(--color-ink);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  position: relative;
}
.why-card::before {
  content: "";
  position: absolute;
  top: 0; left: 2.2rem;
  width: 46px; height: 4px;
  background: var(--color-primary-light);
  border-radius: 4px;
  transform: translateY(-2px);
}
.why-card p {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text-on-dark);
  margin-bottom: 1rem;
}
.why-card span { color: var(--color-text-on-dark-muted); font-size: 0.9rem; }

/* ---------- Contact ---------- */
.contact { padding-block: var(--space-section); background: var(--color-surface-alt); }
.contact-inner { text-align: center; }
.contact-inner h2 { font-size: clamp(1.7rem, 1.4rem + 1.2vw, 2.4rem); }
.contact-sub { max-width: 46ch; margin-inline: auto; }

.contact-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 2rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--color-surface);
  padding: 1.2rem 1.7rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  min-width: 260px;
  transition: transform 200ms var(--ease-out-expo), box-shadow 200ms var(--ease-out-expo);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -18px rgba(15, 25, 40, 0.4); }
.contact-card svg { width: 26px; height: 26px; color: var(--color-primary); flex-shrink: 0; }
.contact-card strong { display: block; font-family: var(--font-display); color: var(--color-ink); font-size: 0.95rem; }
.contact-card span { color: var(--color-text-muted); font-size: 0.92rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink); padding-block: 2rem; }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-brand { display: inline-flex; align-items: center; gap: 0.5rem; }
.footer-brand .brand-icon { width: 32px; height: 32px; color: var(--color-text-on-dark); }
.brand-mark-small { font-size: 1.1rem; }
.footer-inner p { color: var(--color-text-on-dark-muted); font-size: 0.85rem; margin: 0; }

.footer-credit {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(238, 242, 247, 0.1);
  text-align: center;
}
.footer-credit a {
  color: var(--color-text-on-dark-muted);
  font-size: 0.8rem;
  transition: color 200ms var(--ease-out-expo);
}
.footer-credit a:hover { color: var(--color-primary-light); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .why-inner { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .brand-tagline { display: none; }
}

@media (max-width: 720px) {
  .nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 260ms var(--ease-out-expo);
  }
  .nav.is-open { max-height: 240px; }
  .nav a { padding: 0.9rem clamp(1.25rem, 4vw, 2.5rem); border-top: 1px solid var(--color-border); }
  .header-cta { display: none; }
  .lang-switch { margin-inline-start: auto; }
  .lang-current { padding: 0.45rem 0.6rem; font-size: 0.8rem; }
  .nav-toggle { display: flex; }
  .trust-grid { grid-template-columns: 1fr; }
}