/* ============================================
   InteliHome — Design System
   Brand: Copper (#B87333) + Dark Grey (#2B2B2B)
   Super minimalistic
   ============================================ */

:root {
  --copper: #B87433;
  --copper-light: #D49E62;
  --copper-dark: #8F5A27;
  --copper-glow: #E8C9AA;
  --cream: #FFEDD5;
  --dark: #353C42;
  --dark-soft: #3E424B;
  --text: #444;
  --text-light: #777;
  --bg: #F4F4F6;
  --white: #FFFFFF;
  --border: #E8E8E8;
  --max-width: 1100px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ---- Reset ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--copper);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--copper-dark);
}

/* ---- Container ---- */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ---- Header ---- */
.site-header {
  background-color: var(--dark);
  padding: 1.2rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
}

.logo-icon {
  height: 38px;
  width: auto;
}

.logo-name {
  height: 22px;
  width: auto;
}

/* Navigation */
.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: #ccc;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.3px;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  border-bottom-color: var(--copper);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--white);
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ---- Hero ---- */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
  background-color: var(--dark);
  color: var(--white);
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.hero h1 span {
  color: var(--copper);
}

.hero p {
  font-size: 1.15rem;
  color: #aaa;
  max-width: 550px;
  margin: 0 auto 2rem;
  line-height: 1.8;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 4px;
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--copper);
  color: var(--white);
  border: 2px solid var(--copper);
}

.btn-primary:hover {
  background-color: var(--copper-dark);
  border-color: var(--copper-dark);
  color: var(--white);
}

.btn-outline {
  background-color: transparent;
  color: var(--copper);
  border: 2px solid var(--copper);
}

.btn-outline:hover {
  background-color: var(--copper);
  color: var(--white);
}

/* ---- Sections ---- */
.section {
  padding: 4rem 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-light);
  font-size: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

.accent-line {
  width: 40px;
  height: 3px;
  background-color: var(--copper);
  margin: 0.8rem auto 0;
  border-radius: 2px;
}

/* ---- Feature Cards ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: box-shadow 0.2s ease;
}

.feature-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.feature-card .icon {
  font-size: 1.5rem;
  color: var(--copper);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ---- Service Cards ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--white);
  padding: 2.5rem 2rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: box-shadow 0.2s ease;
}

.service-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ---- Products Grid ---- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  text-align: center;
  transition: box-shadow 0.2s ease;
}

.product-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.product-card .product-icon {
  font-size: 2rem;
  color: var(--copper);
  margin-bottom: 1rem;
}

.product-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.product-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 1.2rem;
}

.badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 3px;
  background-color: var(--copper);
  color: var(--white);
}

.badge-outline {
  background-color: transparent;
  border: 1px solid var(--copper);
  color: var(--copper);
}

/* ---- About Page ---- */
.about-content {
  max-width: 700px;
  margin: 0 auto;
}

.about-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--dark);
  margin: 2rem 0 0.8rem;
}

.about-content p {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.value-item {
  text-align: center;
  padding: 1.5rem 1rem;
}

.value-item .icon {
  font-size: 1.5rem;
  color: var(--copper);
  margin-bottom: 0.8rem;
}

.value-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.4rem;
}

.value-item p {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ---- Contact ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.contact-item .icon {
  color: var(--copper);
  font-size: 1.1rem;
  margin-top: 2px;
}

.contact-item p {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.5;
}

.contact-item strong {
  color: var(--dark);
}

/* Contact Form */
.contact-form h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-size: 0.9rem;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--white);
  color: var(--text);
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--copper);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ---- Page Header (inner pages) ---- */
.page-header {
  background-color: var(--dark);
  color: var(--white);
  padding: 3rem 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: #aaa;
  font-size: 1rem;
}

/* ---- CTA Section ---- */
.cta-section {
  text-align: center;
  padding: 4rem 0;
  background-color: var(--dark);
  color: var(--white);
}

.cta-section h2 {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.cta-section p {
  color: #aaa;
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

/* ---- Footer ---- */
.site-footer {
  background-color: var(--dark);
  color: #888;
  padding: 2rem 0;
  border-top: 1px solid var(--dark-soft);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-content p {
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  color: #888;
  font-size: 0.85rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--copper);
}

/* ---- 404 Page ---- */
.error-page {
  text-align: center;
  padding: 6rem 0;
}

.error-page h1 {
  font-size: 5rem;
  font-weight: 700;
  color: var(--copper);
  margin-bottom: 0.5rem;
}

.error-page h2 {
  font-size: 1.5rem;
  color: var(--dark);
  margin-bottom: 1rem;
}

.error-page p {
  color: var(--text-light);
  margin-bottom: 2rem;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--dark);
    padding: 1rem 0;
    gap: 0;
  }

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

  .nav-links li {
    text-align: center;
  }

  .nav-links a {
    display: block;
    padding: 0.8rem 1.5rem;
    border-bottom: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .features-grid,
  .products-grid,
  .values-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 3rem 0 2.5rem;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .section {
    padding: 2.5rem 0;
  }

  .page-header {
    padding: 2rem 0;
  }

  .page-header h1 {
    font-size: 1.5rem;
  }
}