:root {
  --blue: #2555ea;
  --blue-dark: #163ec2;
  --blue-light: #eaf0ff;
  --ink: #10162b;
  --gray: #5b6478;
  --gray-light: #eef1f7;
  --bg: #ffffff;
  --bg-soft: #f7f9fd;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(16, 22, 43, 0.08);
  --max-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

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

h1, h2, h3, h4 {
  line-height: 1.2;
  margin: 0 0 12px;
}

p { margin: 0 0 16px; color: var(--gray); }

a { color: var(--blue); text-decoration: none; }

.eyebrow {
  color: var(--blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(37, 85, 234, 0.3);
}
.btn-ghost {
  background: transparent;
  border-color: var(--gray-light);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-small { padding: 10px 18px; font-size: 0.85rem; }
.btn-full { width: 100%; }

.nav {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-light);
  z-index: 50;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-name {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--ink);
}
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav-links a:hover { color: var(--blue); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--gray-light);
  border: none;
  border-radius: 999px;
  padding: 6px 12px;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  color: var(--gray);
}
.lang-toggle span[data-lang-option] { padding: 2px 4px; border-radius: 6px; }
.lang-toggle span.active { color: var(--blue); background: #fff; }
.lang-sep { opacity: 0.5; }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

.hero {
  padding: 100px 0 90px;
  background: linear-gradient(180deg, var(--blue-light) 0%, #fff 100%);
}
.hero-inner { max-width: 760px; }
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  color: var(--ink);
}
.hero-sub {
  font-size: 1.15rem;
  max-width: 600px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.services { padding: 90px 0; }
.services h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  max-width: 640px;
}
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.card {
  background: var(--bg-soft);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--blue-light);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.card h3 { font-size: 1.05rem; }
.card p { font-size: 0.92rem; margin-bottom: 0; }

.why { padding: 90px 0; background: var(--bg-soft); }
.why-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.why-text h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
}
.why-desc { font-size: 1rem; }
.why-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.why-list li {
  position: relative;
  padding-left: 28px;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
}
.why-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 800;
  font-size: 0.7rem;
}

.process {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.process-step {
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  padding: 20px;
}
.process-num {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--blue);
  min-width: 34px;
}
.process-step h4 { margin: 0 0 4px; font-size: 1rem; }
.process-step p { margin: 0; font-size: 0.9rem; }

.contact { padding: 90px 0 110px; }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
}
.contact-title, .contact h2 { font-size: clamp(1.6rem, 3.5vw, 2.1rem); }
.contact-desc { font-size: 1rem; }
.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 18px;
}
.contact-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray);
  font-weight: 700;
}
.contact-detail a { font-size: 1.05rem; font-weight: 600; }

.contact-form {
  background: var(--bg-soft);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: 0.9rem; }
.field input,
.field textarea {
  border: 1.5px solid var(--gray-light);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
  resize: vertical;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
}
.field-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form-status {
  margin: 0;
  font-size: 0.9rem;
  min-height: 20px;
}
.form-status.success { color: #1a8a4a; }
.form-status.error { color: #d1372f; }

.footer {
  border-top: 1px solid var(--gray-light);
  padding: 26px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--gray);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .why-inner, .contact-inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .menu-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-light);
    gap: 16px;
  }
  .nav-actions .btn-small { display: none; }
  .cards { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 60px; }
  .services, .why, .contact { padding: 60px 0; }
}