/* ============================================
   Advanced Air Conditioning & Heating
   Mobile-First Responsive Stylesheet
   ============================================ */

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

:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e3a5f;
  --blue-900: #0f1d35;

  --orange-400: #fb923c;
  --orange-500: #f97316;
  --orange-600: #ea580c;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Sample Banner --- */
.sample-banner {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-600));
  color: var(--white);
  font-size: 0.8rem;
  position: relative;
  z-index: 1000;
}

.sample-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sample-banner i {
  vertical-align: middle;
}

.sample-banner a {
  color: var(--orange-400);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.sample-banner a:hover {
  color: var(--white);
}

.sample-banner-close {
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  padding: 4px;
  opacity: 0.7;
  font-size: 1rem;
  flex-shrink: 0;
}

.sample-banner-close:hover {
  opacity: 1;
}

/* --- Top Bar --- */
.top-bar {
  background: var(--blue-900);
  color: rgba(255,255,255,0.8);
  font-size: 0.8rem;
  display: none;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
  padding-bottom: 8px;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-bar-left a {
  color: rgba(255,255,255,0.9);
  transition: color var(--transition);
}

.top-bar-left a:hover {
  color: var(--orange-400);
}

.top-bar-left i {
  margin-right: 4px;
  color: var(--orange-400);
}

.top-bar-divider {
  width: 1px;
  height: 14px;
  background: rgba(255,255,255,0.2);
}

.top-bar-right a {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  transition: color var(--transition);
}

.top-bar-right a:hover {
  color: var(--orange-400);
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  padding-bottom: 12px;
}

/* --- Logo --- */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  display: flex;
  align-items: center;
  gap: 2px;
  font-size: 1.3rem;
}

.logo-icon .bi-snow {
  color: var(--blue-500);
}

.logo-icon .bi-fire {
  color: var(--orange-500);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-name {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--blue-800);
  letter-spacing: -0.02em;
}

.logo-tagline {
  font-size: 0.65rem;
  color: var(--gray-500);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* --- Navigation --- */
.nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 20px;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-lg);
}

.nav.open {
  display: flex;
}

.nav-link {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: all var(--transition);
}

.nav-link:hover {
  background: var(--blue-50);
  color: var(--blue-600);
}

.nav-cta {
  margin-top: 8px;
  text-align: center;
  justify-content: center;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: none;
  font-size: 1.6rem;
  color: var(--gray-700);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.menu-toggle:hover {
  background: var(--gray-100);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.4;
  font-family: inherit;
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
  border-color: var(--blue-600);
}

.btn-primary:hover {
  background: var(--blue-700);
  border-color: var(--blue-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--blue-600);
  border-color: var(--blue-600);
}

.btn-outline:hover {
  background: var(--blue-600);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-white {
  background: var(--white);
  color: var(--blue-700);
  border-color: var(--white);
}

.btn-white:hover {
  background: var(--blue-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}

.btn-outline-white:hover {
  background: var(--white);
  color: var(--blue-700);
  border-color: var(--white);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* --- Hero --- */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-800) 50%, #1a3a5c 100%);
  color: var(--white);
  overflow: hidden;
  padding: 60px 0 50px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-image: 
    radial-gradient(circle at 20% 50%, var(--orange-500) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--blue-500) 0%, transparent 50%),
    radial-gradient(circle at 60% 80%, var(--blue-500) 0%, transparent 40%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

.hero-badge i {
  color: var(--orange-400);
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.text-gradient {
  background: linear-gradient(135deg, var(--orange-400), var(--orange-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  margin-bottom: 40px;
}

.hero-actions .btn-outline {
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}

.hero-actions .btn-outline:hover {
  background: var(--white);
  color: var(--blue-700);
  border-color: var(--white);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

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

.hero-stat-number {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--orange-400);
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.hero-stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,0.15);
}

/* --- Section Styles --- */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-badge {
  display: inline-block;
  background: var(--blue-50);
  color: var(--blue-600);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--gray-500);
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Services --- */
.services {
  padding: 64px 0;
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all 0.3s ease;
}

.service-card:hover {
  border-color: var(--blue-200);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.service-icon--cool {
  background: var(--blue-50);
  color: var(--blue-600);
}

.service-icon--heat {
  background: #fff7ed;
  color: var(--orange-500);
}

.service-icon--commercial {
  background: #f0fdf4;
  color: #16a34a;
}

.service-icon--ice {
  background: #f0f9ff;
  color: #0284c7;
}

.service-icon--maintenance {
  background: #faf5ff;
  color: #9333ea;
}

.service-icon--emergency {
  background: #fef2f2;
  color: #dc2626;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* --- About --- */
.about {
  padding: 64px 0;
  background: var(--gray-50);
}

.about-inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.about-content .section-badge {
  margin-bottom: 12px;
}

.about-content .section-title {
  text-align: left;
  margin-bottom: 20px;
}

.about-content p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 24px 0;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--gray-700);
}

.about-feature i {
  color: var(--blue-600);
  font-size: 1.1rem;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.about-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
}

.about-card-icon {
  font-size: 1.4rem;
  color: var(--blue-600);
  margin-bottom: 8px;
}

.about-card-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1;
  margin-bottom: 4px;
}

.about-card-label {
  font-size: 0.75rem;
  color: var(--gray-500);
  font-weight: 500;
  line-height: 1.3;
}

/* --- Why Us --- */
.why-us {
  padding: 64px 0;
  background: var(--white);
}

.why-us-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.why-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  transition: all 0.3s ease;
}

.why-card:hover {
  background: var(--blue-50);
  border-color: var(--blue-200);
  box-shadow: var(--shadow-md);
}

.why-card-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--blue-200);
  line-height: 1;
  margin-bottom: 12px;
}

.why-card:hover .why-card-number {
  color: var(--blue-400);
}

.why-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* --- Testimonials --- */
.testimonials {
  padding: 64px 0;
  background: var(--gray-50);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-200);
}

.testimonial-stars {
  display: flex;
  gap: 2px;
  margin-bottom: 16px;
  color: #f59e0b;
  font-size: 0.9rem;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--blue-50);
  color: var(--blue-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
  color: var(--gray-900);
}

.testimonial-author span {
  font-size: 0.8rem;
  color: var(--gray-400);
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-600));
  color: var(--white);
  padding: 48px 0;
}

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

.cta-content h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.cta-content p {
  color: rgba(255,255,255,0.8);
  font-size: 0.95rem;
  max-width: 500px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

/* --- Contact --- */
.contact {
  padding: 64px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--blue-600);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info-card h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 2px;
}

.contact-info-card a {
  color: var(--blue-600);
  font-weight: 500;
  font-size: 0.9rem;
}

.contact-info-card a:hover {
  text-decoration: underline;
}

.contact-info-card p {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.5;
}

.contact-info-card small {
  color: var(--gray-400);
  font-size: 0.8rem;
}

.contact-social {
  margin-top: 8px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: #1877f2;
  color: var(--white) !important;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
}

.social-link:hover {
  background: #1565c0;
  transform: translateY(-1px);
  text-decoration: none !important;
}

/* --- Contact Form --- */
.contact-form {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
}

.contact-form h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--gray-800);
  background: var(--white);
  transition: all var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-400);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

/* --- Footer --- */
.footer {
  background: var(--blue-900);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo-footer {
  margin-bottom: 16px;
}

.footer-brand .logo-name {
  color: var(--white);
}

.footer-brand .logo-tagline {
  color: rgba(255,255,255,0.5);
}

.footer-brand > p {
  font-size: 0.85rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.5);
  max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links a,
.footer-contact a,
.footer-contact span {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  padding: 4px 0;
  transition: color var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--orange-400);
}

.footer-contact i {
  margin-right: 6px;
  color: var(--orange-400);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

.footer-credit {
  margin-top: 4px;
}

.footer-credit a {
  color: var(--orange-400);
  font-weight: 500;
}

.footer-credit a:hover {
  text-decoration: underline;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* Small phones and up: 480px */
@media (min-width: 480px) {
  .hero-title {
    font-size: 2.8rem;
  }

  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }

  .about-features {
    grid-template-columns: 1fr 1fr;
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

/* Tablets: 768px */
@media (min-width: 768px) {
  .top-bar {
    display: block;
  }

  .container {
    padding: 0 32px;
  }

  .hero {
    padding: 80px 0 64px;
  }

  .hero-title {
    font-size: 3.4rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-stats {
    gap: 48px;
  }

  .hero-stat-number {
    font-size: 2rem;
  }

  .section-title {
    font-size: 2.2rem;
  }

  .services,
  .about,
  .why-us,
  .testimonials,
  .contact {
    padding: 80px 0;
  }

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

  .why-us-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .cta-banner {
    padding: 64px 0;
  }

  .cta-actions {
    flex-direction: row;
    justify-content: center;
  }

  .contact-form {
    padding: 40px 32px;
  }

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

/* Desktop: 1024px */
@media (min-width: 1024px) {
  .nav {
    display: flex;
    position: static;
    background: none;
    border: none;
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    box-shadow: none;
  }

  .nav-link {
    padding: 8px 14px;
    font-size: 0.88rem;
  }

  .nav-cta {
    margin-top: 0;
    margin-left: 8px;
  }

  .menu-toggle {
    display: none;
  }

  .hero {
    padding: 100px 0 80px;
  }

  .hero-title {
    font-size: 3.8rem;
  }

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

  .about-inner {
    flex-direction: row;
    align-items: center;
    gap: 64px;
  }

  .about-content {
    flex: 1.2;
  }

  .about-visual {
    flex: 0.8;
  }

  .why-us-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cta-inner {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 48px;
  }

  .cta-content {
    flex: 1;
  }

  .cta-content p {
    margin: 0;
    margin-top: 8px;
  }

  .cta-actions {
    flex-direction: column;
    flex-shrink: 0;
  }

  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }

  .services,
  .about,
  .why-us,
  .testimonials,
  .contact {
    padding: 100px 0;
  }
}

/* Large Desktop: 1280px */
@media (min-width: 1280px) {
  .hero-title {
    font-size: 4.2rem;
  }

  .section-title {
    font-size: 2.5rem;
  }

  .cta-content h2 {
    font-size: 2.2rem;
  }
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}