/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Ubuntu, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background: #ffffff;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* ===== GLOBAL LAYOUT ===== */
.section {
  padding: 80px 6%;
}

.section.light {
  background: #f9fafb;
}

.section.dark {
  background: #111827;
  color: #ffffff;
}

h1 {
  font-size: 3rem;
  margin-bottom: 16px;
}

h2 {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

p {
  font-size: 1.05rem;
  margin-bottom: 12px;
  color: #374151;
}

.section.dark p {
  color: #d1d5db;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  background: #2563eb;
  color: #ffffff;
  font-weight: 600;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #1e40af;
}

.btn.outline {
  background: transparent;
  border: 2px solid #2563eb;
  color: #2563eb;
}

.btn.outline:hover {
  background: #2563eb;
  color: #ffffff;
}

/* ===== HEADER ===== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 6%;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: #2563eb;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-weight: 500;
  color: #374151;
}

.nav-links a:hover {
  color: #2563eb;
}

/* ===== MOBILE MENU ===== */
.menu-toggle {
  display: none;
  font-size: 1.6rem;
  cursor: pointer;
}

/* ===== FOOTER ===== */
footer {
  background: #111827;
  color: #d1d5db;
  padding: 60px 6%;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}

footer h3 {
  color: #ffffff;
  margin-bottom: 12px;
}

footer a {
  display: block;
  margin-bottom: 8px;
  color: #9ca3af;
}

footer a:hover {
  color: #ffffff;
}

.footer-bottom {
  margin-top: 40px;
  text-align: center;
  font-size: 0.9rem;
  color: #9ca3af;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  h1 {
    font-size: 2.4rem;
  }

  h2 {
    font-size: 1.9rem;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 20px 6%;
    display: none;
    border-bottom: 1px solid #e5e7eb;
  }

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

  .menu-toggle {
    display: block;
  }
}
/* Contact Form Improvements */
form label {
  font-weight: 600;
  margin-top: 10px;
  display: block;
}

form input,
form select,
form textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  border-radius: 6px;
  border: 1px solid #d1d5db;
  margin-top: 6px;
  box-sizing: border-box;
}

form textarea {
  min-height: 100px;
  resize: vertical;
}

form button.btn {
  padding: 14px;
  font-size: 16px;
  margin-top: 15px;
}