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

body {
  background: #eef1f7;
  font-family: system-ui, sans-serif;
  color: #1f2430;
}

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 40px;
  background: #ffffffdd;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #dce1eb;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: #3b82f6;
}

/* NAV */
.nav {
  display: flex;
  gap: 20px;
  align-items: center;
}

.nav a,
.btn-link {
  text-decoration: none;
  color: #4b5563;
  font-size: 15px;
  cursor: pointer;
  transition: 0.2s;
  background: none;
  border: none;
}

.nav a:hover,
.btn-link:hover {
  color: #111827;
}

.user {
  font-size: 14px;
  color: #6b7280;
}

/* BURGER */
.burger {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.burger span {
  width: 26px;
  height: 3px;
  background: #333;
  border-radius: 4px;
}

/* HERO */
.hero {
  padding: 120px 40px;
  text-align: center;
  min-height: 60vh;
}

.hero h1 {
  font-size: 40px;
  margin-bottom: 10px;
}

.hero p {
  font-size: 18px;
  color: #6b7280;
}

/* SERVICES */
.services {
  padding: 40px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.service-card {
  background: #fff;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.06);
  transition: 0.2s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0,0,0,0.1);
}

/* MODALS */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: #00000055;
  justify-content: center;
  align-items: center;
  z-index: 200;
}

.modal-content {
  background: #fff;
  padding: 30px;
  border-radius: 16px;
  width: 320px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
  animation: fade 0.2s ease;
}

@keyframes fade {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.close {
  float: right;
  cursor: pointer;
  font-size: 20px;
  color: #9ca3af;
}

.close:hover {
  color: #4b5563;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

.form input {
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  font-size: 14px;
}

.primary-btn {
  padding: 12px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

/* MOBILE MENU */
@media (max-width: 768px) {
  .nav {
    position: absolute;
    top: 70px;
    right: 20px;
    background: #fff;
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    display: none;
    flex-direction: column;
    gap: 15px;
  }

  .nav.open {
    display: flex;
  }

  .burger {
    display: flex;
  }
}