/* =========================
   RESET & BASE
   ========================= */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #1f2937;
  background: #f3f4f6;
  overflow-x: hidden;
}

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

/* =========================
   LAYOUT
   ========================= */
.container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 40px 28px;
  background: #ffffff;
  border-radius: 8px;
}

@media (max-width: 768px) {
  .container {
    margin: 20px;
    padding: 28px 20px;
  }
}

/* =========================
   TYPOGRAPHY
   ========================= */
h1 {
  font-size: 2.25rem;
  line-height: 1.3;
  margin-bottom: 24px;
}

h2 {
  font-size: 1.6rem;
  margin-top: 48px;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.25rem;
  margin-top: 32px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 18px;
}

ul {
  padding-left: 20px;
  margin-bottom: 24px;
}

li {
  margin-bottom: 10px;
}

/* =========================
   LINKS
   ========================= */
a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* =========================
   HEADER & MENU (FINAL)
   ========================= */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Logo */
.site-logo img {
  max-width: 240px;   /* DESKTOP */
  margin-bottom: 12px;
}

/* Menu */
.menu {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

.menu a {
  font-size: 15px;
  font-weight: 500;
  color: #374151;
}

.menu a:hover {
  color: #2563eb;
}

/* =========================
   TABLET
   ========================= */
@media (max-width: 1024px) {
  .site-logo img {
    max-width: 200px;
  }
}

/* =========================
   MOBILE
   ========================= */
@media (max-width: 768px) {
  .site-logo img {
    max-width: 160px;
  }

  .menu {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  .menu a {
    font-size: 14px;
  }
}

/* =========================
   FOOTER
   ========================= */
.footer {
  text-align: center;
  font-size: 14px;
  color: #6b7280;
  padding: 24px 0 40px;
}