/* ==============================
   GLOBAL RESET & BASE STYLES
================================ */

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fb;
}

/* ==============================
   LINKS
================================ */

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

a:hover {
  opacity: 0.85;
}

/* ==============================
   HEADER & NAVIGATION
================================ */

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  background-color: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

nav a {
  margin-left: 30px;
  font-weight: 500;
  color: #111827;
}

/* ==============================
   HERO SECTION
================================ */

.hero {
  background: linear-gradient(
    rgba(15, 23, 42, 0.6),
    rgba(15, 23, 42, 0.6)
  ),
  url("images/hero-banner.jpg") center/cover no-repeat;
  color: #ffffff;
  padding: 120px 60px;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 20px;
  max-width: 700px;
  margin: 0 auto;
}

/* ==============================
   MAIN CONTENT CONTAINER
================================ */

.container {
  max-width: 1200px;
  margin: 80px auto;
  padding: 60px;
  background-color: #ffffff;
  border-radius: 24px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.06);
}

/* ==============================
   SECTIONS
================================ */

section {
  margin-bottom: 80px;
  background-color: transparent;
}

section h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

section p {
  font-size: 17px;
  color: #4b5563;
}

/* ==============================
   SERVICE CARDS
================================ */

.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.service-card {
  background-color: #f9fafb;
  border-radius: 20px;
  padding: 30px;
  text-align: center;
}

.service-card img {
  width: 100%;
  border-radius: 16px;
  margin-bottom: 20px;
}

/* ==============================
   BUTTONS
================================ */

button,
.cta-button {
  background-color: #111827;
  color: #ffffff;
  padding: 14px 28px;
  border-radius: 999px;
  border: none;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

button:hover,
.cta-button:hover {
  background-color: #1f2937;
}

/* ==============================
   FORMS
================================ */

form input,
form textarea,
form select {
  width: 100%;
  padding: 14px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid #d1d5db;
  font-size: 16px;
}

/* ==============================
   FOOTER
================================ */

footer {
  padding: 40px 20px;
  background-color: #0f172a;
  text-align: center;
  color: #d1d5db;
}

footer a {
  color: #9ca3af;
  margin: 0 10px;
}

/* ==============================
   RESPONSIVE
================================ */

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 20px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .container {
    margin: 40px 20px;
    padding: 40px;
  }
}