/* Base Styles and Variables */
:root {
  --color-brand-blue: #1A1F2C;
  --color-brand-orange: #F97316;
  --color-brand-dark-gray: #333333;
  --color-brand-gray: #f5f5f5;
  --color-white: #FFFFFF;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --border-radius: 0.5rem;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-brand-dark-gray);
  line-height: 1.6;
  background-color: var(--color-white);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-brand-blue);
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.25rem;
  }
  
  h3 {
    font-size: 1.75rem;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 3.5rem;
  }
}

/* Layout */
.container-custom {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section {
  padding: 4rem 0;
}

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

.section-header p {
  max-width: 42rem;
  margin: 0 auto;
  font-size: 1.125rem;
}

.text-center {
  text-align: center;
}

.mt-10 {
  margin-top: 2.5rem;
}

/* Utility Classes */
.text-brand-blue {
  color: var(--color-brand-blue);
}

.text-brand-orange {
  color: var(--color-brand-orange);
}

.bg-brand-gray {
  background-color: var(--color-brand-gray);
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  font-weight: 500;
  text-align: center;
  transition: background-color 0.3s ease;
}

.btn-primary {
  background-color: var(--color-brand-blue);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: #141824;
}

.btn-secondary {
  background-color: var(--color-brand-orange);
  color: var(--color-white);
}

.btn-secondary:hover {
  background-color: #e86a10;
}

.btn-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  column-gap: 0.5rem;
  width: 100%;
}

/* Header */
.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo h1 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0;
}

.desktop-nav {
  display: none;
}

.nav-link {
  margin: 0 1rem;
  font-weight: 500;
  color: var(--color-brand-dark-gray);
}

.nav-link:hover {
  color: var(--color-brand-blue);
}

.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--color-brand-blue);
  cursor: pointer;
}

.mobile-nav {
  display: none;
  background-color: var(--color-white);
  padding: 1rem;
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.3s ease;
}

.mobile-nav.active {
  display: block;
}

.mobile-nav nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .mobile-menu-btn {
    display: none;
  }
}

/* Hero Section */
.hero-section {
  position: relative;
  background-color: var(--color-gray-100);
  overflow: hidden;
  padding: 5rem 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1600607687939-ce8a6c25118c?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  filter: blur(2px);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 48rem;
}

.hero-content h1 {
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

@media (min-width: 768px) {
  .hero-section {
    padding: 7rem 0;
  }
  
  .hero-content p {
    font-size: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .hero-section {
    padding: 8rem 0;
  }
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.service-card {
  background-color: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  color: var(--color-brand-orange);
  margin-bottom: 1rem;
}

.service-icon svg {
  width: 48px;
  height: 48px;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.project-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.3s ease;
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
}

.project-image {
  position: relative;
  height: 16rem;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-category {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: var(--color-brand-orange);
  color: var(--color-white);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.project-content {
  padding: 1.5rem;
}

.project-content h3 {
  margin-bottom: 0.5rem;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Testimonials Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.testimonial-card {
  background-color: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.testimonial-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.testimonial-header img {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 1rem;
}

.testimonial-header h4 {
  color: var(--color-brand-blue);
  margin-bottom: 0.25rem;
}

.testimonial-header p {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  margin: 0;
}

.testimonial-content {
  font-style: italic;
  color: var(--color-gray-700);
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.contact-info p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
}

.contact-icon {
  background-color: rgba(249, 115, 22, 0.1);
  padding: 0.75rem;
  border-radius: 9999px;
  margin-right: 1rem;
  color: var(--color-brand-orange);
}

.contact-item h4 {
  font-weight: 500;
  color: var(--color-brand-blue);
  margin-bottom: 0.25rem;
}

.contact-item a {
  color: var(--color-brand-dark-gray);
}

.contact-item a:hover {
  color: var(--color-brand-orange);
}

.contact-form-container {
  background-color: var(--color-white);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
}

.contact-form-container h3 {
  color: var(--color-brand-blue);
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-gray-300);
  border-radius: 0.375rem;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-brand-blue);
  box-shadow: 0 0 0 3px rgba(26, 31, 44, 0.1);
}

@media (min-width: 768px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Footer */
.footer {
  background-color: var(--color-brand-blue);
  color: var(--color-white);
  padding-top: 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
}

.footer-about h3 {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-about p {
  color: var(--color-gray-300);
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  color: var(--color-white);
  transition: color 0.3s ease;
}

.social-links a:hover {
  color: var(--color-brand-orange);
}

.footer h4 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
  font-size: 1.25rem;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--color-gray-300);
}

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

.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
}

.footer-contact li i {
  color: var(--color-brand-orange);
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.footer-contact a {
  color: var(--color-gray-300);
}

.footer-contact a:hover {
  color: var(--color-brand-orange);
}

.footer-contact span {
  color: var(--color-gray-300);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 0;
}

.footer-bottom .container-custom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-gray-400);
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: 0.875rem;
  color: var(--color-gray-400);
}

.footer-legal a:hover {
  color: var(--color-brand-orange);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-bottom .container-custom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

/* Animations */
.animate-fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive adjustments */
@media (max-width: 639px) {
  .container-custom {
    padding: 0 1rem;
  }
}