:root {
  --green: #9caf88;
  --sage: #7c9188;
  --slate: #5d7489;
  --blue: #3d5789;
  --deep-blue: #1e3a8a;
  --ink: #1b2230;
  --light: #f7f9f7;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f7f9f7 0%, #ffffff 60%);
  line-height: 1.6;
}

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

a {
  color: var(--deep-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover,
a:focus {
  color: var(--blue);
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(61, 87, 137, 0.15);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
}

.logo img {
  height: 54px;
  width: auto;
}

.nav-menu {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-menu a {
  font-weight: 600;
  color: var(--ink);
  position: relative;
}

.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.4rem;
  width: 100%;
  height: 2px;
  background: var(--deep-blue);
}

.language-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.language-switch a.active {
  color: var(--deep-blue);
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--deep-blue);
  margin: 5px 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.main-content {
  padding: 3rem 0 4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  background: var(--deep-blue);
  color: var(--white);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover,
.btn:focus {
  background: var(--blue);
  transform: translateY(-1px);
}

.btn.secondary {
  background: var(--green);
  color: var(--ink);
}

.btn.secondary:hover,
.btn.secondary:focus {
  background: var(--sage);
}

.form-stack {
  display: grid;
  gap: 0.8rem;
}

.icon {
  width: 20px;
  height: 20px;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}

.contact-item {
  margin-bottom: 12px;
  font-size: 1rem;
  color: var(--deep-blue);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

input,
textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 10px;
  border: 1px solid rgba(61, 87, 137, 0.2);
  font-size: 1rem;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(30, 58, 138, 0.3);
  border-color: var(--deep-blue);
}

.flash-stack {
  display: grid;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.flash {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  font-weight: 600;
}

.flash.success {
  background: rgba(156, 175, 136, 0.2);
  border: 1px solid rgba(156, 175, 136, 0.6);
}

.flash.error {
  background: rgba(61, 87, 137, 0.12);
  border: 1px solid rgba(61, 87, 137, 0.4);
}

.site-footer {
  background: var(--light);
  border-top: 1px solid rgba(61, 87, 137, 0.12);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-inner p {
  margin: 0.4rem 0;
}

.footer-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    right: 4%;
    top: 78px;
    flex-direction: column;
    background: var(--white);
    border-radius: 16px;
    padding: 1rem 1.5rem;
    box-shadow: 0 12px 30px rgba(30, 58, 138, 0.12);
    display: none;
  }

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

@media (max-width: 700px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .language-switch {
    width: 100%;
    justify-content: flex-end;
  }
}