:root {
  --primary-color: #d97706; /* Construction Amber/Gold */
  --primary-hover: #b45309;
  --dark-color: #1f2937;
  --light-bg: #f9fafb;
  --text-color: #374151;
  --font-family: 'Inter', sans-serif;
}

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

body {
  font-family: var(--font-family);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Header & Nav */
.navbar {
  background: #ffffff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--dark-color);
}

#logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.brand-name {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 600;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary-color);
}

/* Buttons */
.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff !important;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: 600;
  transition: background-color 0.2s;
  border: none;
  cursor: pointer;
}

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

.btn-secondary {
  background-color: #ffffff;
  color: var(--dark-color) !important;
  border: 2px solid var(--dark-color);
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
}

.btn-large {
  padding: 0.8rem 1.8rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(31, 41, 55, 0.85), rgba(31, 41, 55, 0.85)), url('background.png') center/cover no-repeat;
  color: #ffffff;
  padding: 6rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  max-width: 650px;
  margin: 0 auto 2rem;
  color: #e5e7eb;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Sections */
.section {
  padding: 5rem 0;
}

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

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

.text-white {
  color: #ffffff;
}

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  color: #6b7280;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.bg-dark .section-subtitle {
  color: #9ca3af;
}

/* Grid & Cards */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: #ffffff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.card h3 {
  margin-bottom: 0.75rem;
  color: var(--dark-color);
}

.project-card {
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.project-placeholder {
  height: 200px;
  background-color: #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: #6b7280;
}

.project-info {
  padding: 1.5rem;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #4b5563;
  border-radius: 6px;
  background-color: #374151;
  color: #ffffff;
  font-family: inherit;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #9ca3af;
}

/* Footer */
.footer {
  background-color: #111827;
  color: #9ca3af;
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.9rem;
}