/* Forest Gold Architecture Studio Theme */
/* Primary Color: #2C5530 (Forest Green) */
/* Secondary Color: #D4AF37 (Gold) */

/* ==================== */
/* CSS CUSTOM PROPERTIES */
/* ==================== */
:root {
  --color-primary: #2C5530;
  --color-primary-dark: #1e3a21;
  --color-primary-light: #3d7043;
  --color-secondary: #D4AF37;
  --color-secondary-dark: #b8952d;
  --color-secondary-light: #e4c961;
  --color-accent: #8B7355;
  --color-white: #FFFFFF;
  --color-light: #F8F6F1;
  --color-light-gray: #E8E6E1;
  --color-medium-gray: #9B9B9B;
  --color-dark: #2A2A2A;
  --color-text: #333333;
  --color-text-light: #666666;
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Playfair Display', Georgia, serif;
  --transition-base: all 0.3s ease;
  --transition-slow: all 0.5s ease;
  --shadow-sm: 0 2px 8px rgba(44, 85, 48, 0.1);
  --shadow-md: 0 4px 16px rgba(44, 85, 48, 0.15);
  --shadow-lg: 0 8px 32px rgba(44, 85, 48, 0.2);
  --border-radius: 4px;
  --spacing-unit: 1rem;
}

/* ==================== */
/* RESET & BASE STYLES */
/* ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

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

a:hover {
  color: var(--color-secondary);
}

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

ul {
  list-style: none;
}

/* ==================== */
/* BOOTSTRAP 5 OVERRIDES */
/* ==================== */
.container {
  max-width: 1200px;
}

/* Buttons */
.btn {
  font-family: var(--font-primary);
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  transition: var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
  display: inline-block;
  cursor: pointer;
  line-height: 1.5;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-primary-dark);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-primary {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.btn-outline-secondary {
  background-color: transparent;
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-primary-dark);
}

.btn-lg {
  padding: 1.125rem 2.5rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.625rem 1.5rem;
  font-size: 0.8125rem;
}

/* Forms */
.form-control,
.form-select {
  border: 2px solid var(--color-light-gray);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  font-family: var(--font-primary);
  font-size: 1rem;
  color: var(--color-text);
  transition: var(--transition-base);
  background-color: var(--color-white);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(44, 85, 48, 0.15);
  outline: 0;
  background-color: var(--color-white);
}

.form-control.is-invalid {
  border-color: #dc3545;
}

.form-control.is-valid {
  border-color: var(--color-primary);
}

.form-label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* Cards */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  overflow: hidden;
  background-color: var(--color-white);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-title {
  color: var(--color-primary);
  font-family: var(--font-secondary);
}

.card-text {
  color: var(--color-text-light);
}

/* Navbar */
.navbar {
  padding: 1rem 0;
  transition: var(--transition-base);
}

.navbar-brand {
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: var(--transition-base);
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--color-secondary);
}

.navbar-nav .nav-link {
  color: var(--color-text);
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: var(--transition-base);
  position: relative;
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background-color: var(--color-secondary);
  transform: scaleX(0);
  transition: var(--transition-base);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--color-primary);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  transform: scaleX(1);
}

.navbar-nav .nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

.navbar-toggler {
  border: 2px solid var(--color-primary);
  padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(44, 85, 48, 0.15);
  outline: 0;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(44, 85, 48, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Badges */
.badge {
  padding: 0.5rem 1rem;
  font-weight: 600;
  border-radius: 50px;
}

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

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

.text-primary {
  color: var(--color-primary);
}

.text-secondary {
  color: var(--color-secondary);
}

/* ==================== */
/* HEADER & NAVIGATION */
/* ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.header.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-weight: 700;
  font-size: 1.25rem;
}

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

.mobile-menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: var(--transition-base);
  border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* ==================== */
/* HERO SECTION */
/* ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(44, 85, 48, 0.95), rgba(44, 85, 48, 0.85)), url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg",%3E%3Cpath d="M0 0h100v100H0z" fill="%232C5530"/%3E%3Cpath d="M50 20L65 50H35z" fill="%23D4AF37" opacity="0.1"/%3E%3C/svg%3E');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 6rem 1rem 4rem;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  color: var(--color-secondary);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-family: var(--font-primary);
}

.hero-title {
  color: var(--color-white);
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-description {
  color: var(--color-light);
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

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

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 50px;
  border: 2px solid var(--color-secondary);
  border-radius: 25px;
  cursor: pointer;
  animation: bounce 2s infinite;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background-color: var(--color-secondary);
  border-radius: 50%;
  animation: scrollDown 2s infinite;
}

/* ==================== */
/* SECTION STYLES */
/* ==================== */
.section {
  padding: 5rem 1rem;
  position: relative;
}

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

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

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
  color: var(--color-white);
}

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

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-subtitle {
  color: var(--color-secondary);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  font-family: var(--font-primary);
}

.section-title {
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.125rem;
  max-width: 700px;
  margin: 0 auto;
  color: var(--color-text-light);
}

.section-divider {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  margin: 1.5rem auto;
  border-radius: 2px;
}

/* ==================== */
/* PROJECT GRID */
/* ==================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  background-color: var(--color-white);
}

.project-image {
  width: 100%;
  height: 350px;
  object-fit: cover;
  transition: var(--transition-slow);
}

.project-card:hover .project-image {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(44, 85, 48, 0.95), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition-base);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-category {
  color: var(--color-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.project-title {
  color: var(--color-white);
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.project-description {
  color: var(--color-light);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.project-link {
  color: var(--color-secondary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-base);
}

.project-link:hover {
  gap: 0.75rem;
  color: var(--color-secondary-light);
}

/* ==================== */
/* SERVICES */
/* ==================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background-color: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  text-align: center;
  border-top: 4px solid var(--color-secondary);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--color-secondary);
  font-size: 2rem;
  transition: var(--transition-base);
}

.service-card:hover .service-icon {
  transform: rotate(360deg);
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-light));
  color: var(--color-primary);
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.service-description {
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ==================== */
/* TESTIMONIALS */
/* ==================== */
.testimonials-slider {
  max-width: 900px;
  margin: 3rem auto 0;
  position: relative;
}

.testimonial-card {
  background-color: var(--color-white);
  padding: 3rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  text-align: center;
  position: relative;
}

.testimonial-quote {
  font-size: 3rem;
  color: var(--color-secondary);
  opacity: 0.3;
  position: absolute;
  top: 1rem;
  left: 2rem;
  line-height: 1;
}

.testimonial-text {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.author-image {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-secondary);
}

.author-info h4 {
  font-size: 1.125rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.author-info p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin: 0;
}

/* ==================== */
/* CONTACT FORM */
/* ==================== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1200px;
  margin: 3rem auto 0;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

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

.contact-icon {
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.contact-details p {
  color: var(--color-text-light);
  margin: 0;
}

.contact-details a {
  color: var(--color-text-light);
  transition: var(--transition-base);
}

.contact-details a:hover {
  color: var(--color-primary);
}

.contact-form {
  background-color: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

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

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

.invalid-feedback,
.valid-feedback {
  display: none;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.invalid-feedback {
  color: #dc3545;
}

.valid-feedback {
  color: var(--color-primary);
}

.form-control.is-invalid ~ .invalid-feedback,
.form-control.is-valid ~ .valid-feedback {
  display: block;
}

.submit-btn {
  width: 100%;
}

/* ==================== */
/* FOOTER */
/* ==================== */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-light);
  padding: 4rem 1rem 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 3rem;
}

.footer-section h4 {
  color: var(--color-white);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.75rem;
}

.footer-section h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--color-secondary);
}

.footer-section p {
  color: var(--color-light-gray);
  line-height: 1.8;
}

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

.footer-links a {
  color: var(--color-light-gray);
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-links a:hover {
  color: var(--color-secondary);
  padding-left: 0.5rem;
}

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

.social-link {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: var(--transition-base);
}

.social-link:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary-dark);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-light-gray);
  font-size: 0.9rem;
}

.footer-bottom a {
  color: var(--color-secondary);
}

.footer-bottom a:hover {
  color: var(--color-secondary-light);
}

/* ==================== */
/* ANIMATIONS */
/* ==================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

@keyframes scrollDown {
  0% {
    opacity: 0;
    top: 8px;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    top: 25px;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-fadeIn {
  animation: fadeIn 1s ease-out;
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out;
}

.animate-fadeInDown {
  animation: fadeInDown 0.8s ease-out;
}

.animate-slideInLeft {
  animation: slideInLeft 0.8s ease-out;
}

.animate-slideInRight {
  animation: slideInRight 0.8s ease-out;
}

/* Stagger animation delays */
.stagger-1 { animation-delay: 0.1s; animation-fill-mode: both; opacity: 0; }
.stagger-2 { animation-delay: 0.2s; animation-fill-mode: both; opacity: 0; }
.stagger-3 { animation-delay: 0.3s; animation-fill-mode: both; opacity: 0; }
.stagger-4 { animation-delay: 0.4s; animation-fill-mode: both; opacity: 0; }

/* ==================== */
/* UTILITY CLASSES */
/* ==================== */
.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid var(--color-secondary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.text-gold {
  color: var(--color-secondary);
}

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

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

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ==================== */
/* RESPONSIVE DESIGN */
/* ==================== */
@media (max-width: 991px) {
  .navbar-collapse {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    transition: var(--transition-base);
    overflow-y: auto;
    z-index: 1001;
  }

  .navbar-collapse.show {
    right: 0;
  }

  .mobile-menu-toggle {
    display: block;
    z-index: 1002;
  }

  .navbar-nav {
    flex-direction: column;
    gap: 0.5rem;
  }

  .navbar-nav .nav-link {
    padding: 0.75rem 0;
  }

  .navbar-nav .nav-link::after {
    left: 0;
    right: auto;
    width: 30px;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  :root {
    font-size: 15px;
  }

  .section {
    padding: 3rem 1rem;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }

  .hero {
    padding: 5rem 1rem 3rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .testimonial-card {
    padding: 2rem 1.5rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

  .project-image {
    height: 250px;
  }

  .service-card {
    padding: 2rem 1.5rem;
  }

  .footer {
    padding: 3rem 1rem 1.5rem;
  }
}

/* ==================== */
/* PRINT STYLES */
/* ==================== */
@media print {
  .header,
  .mobile-menu-toggle,
  .hero-buttons,
  .scroll-indicator,
  .footer {
    display: none;
  }

  .section {
    padding: 2rem 1rem;
    page-break-inside: avoid;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}

/* ==================== */
/* ACCESSIBILITY */
/* ==================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  z-index: 10000;
}

.skip-link:focus {
  top: 0;
}

*:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    transition-duration: 0.01ms;
    scroll-behavior: auto;
  }
}