:root {
  --brand-bg: #63b7d5;
  --bg: #f4fbff;
  --surface: #ffffff;
  --text: #12222d;
  --muted: #4b6472;
  --accent: #0f6f97;
  --accent-strong: #0b5676;
  --border: #cfe0e8;
  --container: 1120px;
  --radius: 12px;
  --shadow: 0 6px 20px rgba(15, 111, 151, 0.1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(100% - 2rem, var(--container)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 78px;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}

.brand-icon,
.footer-icon,
.hero-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  max-width: 36px;
  max-height: 36px;
  object-fit: contain;
  display: block;
}

.brand-name {
  color: var(--accent-strong);
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 1.08rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.7rem;
}

.nav-links {
  display: flex;
  gap: 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a { font-weight: 600; color: var(--text); }
.nav-links a.active { color: var(--accent); }

main { padding: 2.5rem 0 4rem; }
section { margin-bottom: 2.5rem; }

.hero {
  background: linear-gradient(145deg, #ffffff, #e9f8ff);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 3rem;
}

.hero-logo-strip {
  margin-bottom: 1.2rem;
  background: #063e52;
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.hero-brand-name {
  color: #ffffff;
  font-weight: 800;
  letter-spacing: 0.02em;
}

h1, h2, h3 { line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(1.8rem, 2.3vw, 2.7rem); margin-bottom: 0.9rem; }
h2 { font-size: clamp(1.4rem, 1.9vw, 2rem); margin-bottom: 0.8rem; }

.lead { font-size: 1.08rem; color: var(--muted); }

.cta-row { margin-top: 1.5rem; display: flex; gap: 0.9rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  border-radius: 10px;
  padding: 0.7rem 1rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-strong); text-decoration: none; }

.btn-secondary {
  border-color: var(--accent);
  color: var(--accent);
  background: #fff;
}

.btn-secondary:hover { text-decoration: none; background: #edf8fd; }

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.card h3 { margin-bottom: 0.5rem; font-size: 1.12rem; }

.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { margin-bottom: 0.4rem; }

form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
}

label { display: block; font-weight: 600; margin-bottom: 0.35rem; }

input, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.9rem;
  font: inherit;
}

textarea { min-height: 140px; resize: vertical; }

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

.footer-logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.3rem;
}

.site-footer p { margin: 0.25rem 0; color: var(--muted); }
.footer-title { font-weight: 700; color: var(--accent-strong); }
.small { font-size: 0.92rem; color: var(--muted); }

@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero { padding: 2rem 1.2rem; }
}

@media (max-width: 760px) {
  .brand-name { font-size: 0.98rem; }
  .menu-toggle { display: inline-flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 78px;
    right: 1rem;
    left: 1rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.8rem;
    flex-direction: column;
    gap: 0.65rem;
    box-shadow: var(--shadow);
  }

  .nav-links.open { display: flex; }
}