/*
  Simplified styles for Francisco's Cooling & Heating website.
  Defines a cohesive color palette and responsive layout for a multi‑page site.
*/

:root {
  --color-primary: #004a7c; /* deep blue */
  --color-accent: #f06449; /* warm accent reminiscent of heat */
  --color-light: #f5f8fa; /* off‑white background */
  --color-dark: #1f1f1f; /* dark shade for footer */
  --text-color: #333333;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  background-color: #ffffff;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.btn.primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn.primary:hover {
  background-color: #00395f;
}

.btn.secondary {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn.secondary:hover {
  background-color: #d7513c;
}

.btn.outline {
  background-color: transparent;
  color: #ffffff;
  border: 2px solid #ffffff;
}

.btn.outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Header */
header {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 1rem 0.5rem;
}

header .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

header .logo {
  display: flex;
  align-items: center;
  font-weight: bold;
  font-size: 1.2rem;
  gap: 0.5rem;
  white-space: nowrap;
}

header .logo img {
  height: 40px;
  width: auto;
}

nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-left: auto;
}

nav a {
  color: #ffffff;
  font-weight: 500;
  padding: 0.3rem 0;
}

nav a:hover {
  border-bottom: 2px solid var(--color-accent);
}

/* Hero section */
.hero {
  position: relative;
  background-size: cover;
  background-position: center;
  color: #ffffff;
  padding: 5rem 0;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.45);
}

.hero .hero-content {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  z-index: 1;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.hero .btn {
  margin: 0 0.5rem;
  min-width: 150px;
}

/* Containers and sections */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

section {
  padding: 3rem 0;
}

.light-section {
  background-color: var(--color-light);
}

/* Services grid */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
}

.service-card img {
  height: 180px;
  object-fit: cover;
  width: 100%;
}

.service-card-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.service-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
  font-size: 1.3rem;
}

.service-card p {
  flex-grow: 1;
  margin-bottom: 1rem;
}

.service-card .btn {
  align-self: flex-start;
  font-size: 0.9rem;
}

/* Page header */
.page-header {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 2.5rem 0;
  text-align: center;
}

.page-header h1 {
  margin: 0;
  font-size: 2.2rem;
}

/* Page sections */
.page-section {
  padding: 2.5rem 0;
}

.page-section h2 {
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: 1rem;
}

.page-section p {
  margin-bottom: 1rem;
}

.page-section ul {
  list-style: disc;
  padding-left: 1.5rem;
}

/* Contact page */
.contact-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  align-items: flex-start;
}

.contact-form {
  background-color: var(--color-light);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-form h2 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.contact-form p {
  margin-bottom: 1rem;
}

.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
  width: 100%;
}

.contact-form button {
  align-self: flex-start;
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.contact-form button:hover {
  background-color: #00395f;
}

.contact-details h2 {
  margin-top: 0;
  color: var(--color-primary);
}

/* Footer */
footer {
  background-color: var(--color-dark);
  color: #cccccc;
  padding: 3rem 0 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

footer h4 {
  color: #ffffff;
  margin-top: 0;
}

footer a {
  color: #a3cde3;
}

footer a:hover {
  color: #ffffff;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid #333;
  padding-top: 1rem;
  color: #888888;
  font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  header .logo {
    margin-bottom: 0.5rem;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }
}