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

:root {
  --navy: #1B3A6B;
  --white: #ffffff;
  --text: #1a1a1a;
  --muted: #555;
  --border: #e5e5e5;
  --bg-light: #f5f5f7;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--white);
  color: var(--text);
  line-height: 1.7;
}

/* LANG BAR */
.lang-bar {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.lang-bar button {
  background: none;
  border: 1.5px solid var(--navy);
  border-radius: 20px;
  color: var(--navy);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 4px 14px;
  transition: background 0.15s, color 0.15s;
}

.lang-bar button.active,
.lang-bar button:hover {
  background: var(--navy);
  color: var(--white);
}

/* NAV */
nav {
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 60px;
}

.nav-logo {
  color: var(--white);
  font-size: 1.4rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.82);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--white); }

/* NAV - MOBILE */
@media (max-width: 600px) {
  nav {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 16px;
    row-gap: 10px;
  }

  .nav-logo {
    font-size: 1.2rem;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
    row-gap: 8px;
  }

  .nav-links a {
    font-size: 0.82rem;
  }
}

/* HERO */
.hero {
  background: var(--navy);
  color: var(--white);
  text-align: center;
  padding: 80px 24px 72px;
}

.hero h1 {
  font-size: clamp(3rem, 10vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.8;
  margin-top: 16px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.hero-btn {
  display: inline-block;
  margin-top: 32px;
  background: var(--white);
  color: var(--navy);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 50px;
  text-decoration: none;
  transition: opacity 0.15s;
}

.hero-btn:hover { opacity: 0.9; }

/* FEATURES */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  max-width: 860px;
  margin: 64px auto;
  padding: 0 24px;
}

.feature-card {
  background: var(--bg-light);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
}

.feature-icon { font-size: 2.2rem; margin-bottom: 14px; }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--muted); }

/* PAGE HEADER */
.page-header {
  background: var(--navy);
  padding: 40px 24px;
  text-align: center;
}

.page-header h1 { color: var(--white); font-size: 1.8rem; font-weight: 700; }
.page-header p { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-top: 6px; }

/* CONTENT */
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

h2 {
  color: var(--navy);
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 10px;
  border-left: 4px solid var(--navy);
  padding-left: 12px;
}

p { font-size: 1rem; color: #333; margin-bottom: 8px; }
a { color: var(--navy); text-decoration: underline; }

/* CONTACT */
.contact-box {
  background: var(--bg-light);
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
  margin-top: 40px;
}

.contact-box p { font-size: 1rem; color: var(--muted); margin-bottom: 16px; }
.contact-email {
  display: inline-block;
  background: var(--navy);
  color: var(--white);
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  font-size: 1rem;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 24px;
  font-size: 0.8rem;
  color: #999;
  border-top: 1px solid var(--border);
}

/* LANG CONTENT */
.content { display: none; }
.content.active { display: block; }