/* ============================================
   121 Immigration Lawyers - Stylesheet
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --primary: #00AEEF;
  --primary-dark: #0090c7;
  --primary-light: #33c4f5;
  --secondary: #2D2D2D;
  --charcoal: #1a1a1a;
  --dark-bg: #0d1117;
  --white: #ffffff;
  --off-white: #f7f9fc;
  --light-gray: #e8ecf1;
  --text-dark: #222222;
  --text-muted: #6b7280;
  --gold: #f5a623;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-dark);
  background-color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--text-dark);
  margin-bottom: 12px;
  position: relative;
}

.section-title span {
  color: var(--primary);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 48px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-divider {
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 4px;
  margin: 16px auto 0;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: var(--transition);
}

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

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.navbar-logo img {
  height: 48px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--secondary);
  position: relative;
  transition: color var(--transition);
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  transition: all var(--transition) !important;
  box-shadow: 0 4px 15px rgba(0, 174, 239, 0.3);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 174, 239, 0.4) !important;
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--primary) !important;
}

.nav-phone svg {
  width: 16px;
  height: 16px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  width: 26px;
  height: 2.5px;
  background: var(--secondary);
  border-radius: 4px;
  transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0d1117 0%, #1a2332 50%, #0d1117 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13, 17, 23, 0.85) 0%,
    rgba(0, 174, 239, 0.15) 50%,
    rgba(13, 17, 23, 0.9) 100%
  );
  z-index: 1;
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: rgba(0, 174, 239, 0.4);
  border-radius: 50%;
  animation: float-up linear infinite;
}

@keyframes float-up {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-10vh) scale(1);
    opacity: 0;
  }
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 720px;
  padding-top: 100px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 174, 239, 0.12);
  border: 1px solid rgba(0, 174, 239, 0.3);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  line-height: 1.8;
  max-width: 560px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: var(--white);
  padding: 16px 34px;
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(0, 174, 239, 0.35);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 174, 239, 0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  padding: 16px 34px;
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all var(--transition);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-secondary svg {
  width: 20px;
  height: 20px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-family: 'Outfit', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 4px;
}

/* ---------- Trust Bar ---------- */
.trust-bar {
  background: var(--off-white);
  padding: 28px 0;
  border-bottom: 1px solid var(--light-gray);
}

.trust-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--secondary);
  font-size: 0.95rem;
}

.trust-stars {
  display: flex;
  gap: 2px;
}

.trust-stars svg {
  width: 20px;
  height: 20px;
  fill: var(--gold);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--white);
  border-radius: 50px;
  box-shadow: var(--shadow-sm);
}

.trust-badge svg {
  width: 22px;
  height: 22px;
  color: var(--primary);
}

/* ---------- About ---------- */
.about {
  padding: 100px 0;
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.about-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
  color: var(--white);
}

.about-image-overlay h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.about-image-overlay p {
  font-size: 0.85rem;
  opacity: 0.8;
}

.about-content .section-title {
  text-align: left;
}

.about-content .section-divider {
  margin: 16px 0 0;
}

.about-text {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-top: 24px;
  margin-bottom: 32px;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 500;
  color: var(--secondary);
}

.about-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(0, 174, 239, 0.1);
  border-radius: 50%;
  color: var(--primary);
  flex-shrink: 0;
}

.about-feature-icon svg {
  width: 18px;
  height: 18px;
}

/* ---------- Services ---------- */
.services {
  padding: 100px 0;
  background: var(--off-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: all var(--transition);
  border: 1px solid var(--light-gray);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(0, 174, 239, 0.1), rgba(0, 174, 239, 0.05));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
  transition: all var(--transition);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  transform: scale(1.1);
}

.service-icon svg {
  width: 28px;
  height: 28px;
}

.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---------- Why Choose Us ---------- */
.why-choose {
  padding: 100px 0;
  background: var(--white);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.why-card {
  text-align: center;
  padding: 48px 32px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--light-gray);
  transition: all var(--transition);
  position: relative;
}

.why-card:hover {
  border-color: var(--primary);
  box-shadow: 0 10px 40px rgba(0, 174, 239, 0.12);
  transform: translateY(-6px);
}

.why-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: var(--white);
  box-shadow: 0 8px 25px rgba(0, 174, 239, 0.3);
  transition: all var(--transition);
}

.why-card:hover .why-icon {
  transform: scale(1.1) rotate(5deg);
}

.why-icon svg {
  width: 32px;
  height: 32px;
}

.why-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.why-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---------- Testimonials ---------- */
.testimonials {
  padding: 100px 0;
  background: linear-gradient(135deg, #0d1117 0%, #1a2332 100%);
  position: relative;
  overflow: hidden;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 174, 239, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.testimonials .section-title {
  color: var(--white);
}

.testimonials .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 36px;
  backdrop-filter: blur(10px);
  transition: all var(--transition);
}

.testimonial-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 174, 239, 0.3);
  transform: translateY(-4px);
}

.testimonial-quote {
  font-size: 2.5rem;
  color: var(--primary);
  font-family: Georgia, serif;
  line-height: 1;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  font-style: italic;
  line-height: 1.8;
  margin-bottom: 20px;
}

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

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-info {
  font-size: 0.9rem;
}

.testimonial-name {
  color: var(--white);
  font-weight: 600;
}

.testimonial-rating {
  display: flex;
  gap: 2px;
  margin-top: 4px;
}

.testimonial-rating svg {
  width: 14px;
  height: 14px;
  fill: var(--gold);
}

/* ---------- Contact ---------- */
.contact {
  padding: 100px 0;
  background: var(--off-white);
}

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

.contact-form {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.contact-form .form-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1.5px solid var(--light-gray);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  color: var(--text-dark);
  transition: all var(--transition);
  background: var(--off-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 174, 239, 0.1);
  background: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.form-submit {
  width: 100%;
  padding: 16px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 15px rgba(0, 174, 239, 0.3);
}

.form-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 174, 239, 0.4);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-info-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.contact-info-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.contact-info-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(0, 174, 239, 0.1), rgba(0, 174, 239, 0.05));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 24px;
  height: 24px;
}

.contact-info-text h4 {
  font-size: 1rem;
  color: var(--text-dark);
  margin-bottom: 4px;
}

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

.contact-info-text a {
  color: var(--primary);
  font-weight: 500;
  transition: color var(--transition);
}

.contact-info-text a:hover {
  color: var(--primary-dark);
}

.contact-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 220px;
  box-shadow: var(--shadow-sm);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--charcoal);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand img {
  height: 44px;
  margin-bottom: 16px;
  filter: brightness(100);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 0.9rem;
  transition: all var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary);
  padding-left: 6px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  color: rgba(255, 255, 255, 0.7);
}

.footer-social a:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
}

.footer-social a svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- Mobile Call Button ---------- */
.mobile-call-btn {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  background: var(--primary);
  color: var(--white);
  padding: 16px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  box-shadow: 0 8px 30px rgba(0, 174, 239, 0.5);
  align-items: center;
  gap: 10px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  animation: pulse-glow 2s ease-in-out infinite;
}

.mobile-call-btn svg {
  width: 20px;
  height: 20px;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 8px 30px rgba(0, 174, 239, 0.5);
  }
  50% {
    box-shadow: 0 8px 40px rgba(0, 174, 239, 0.7);
  }
}

/* ---------- Scroll Reveal Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* ---------- Stagger Delay ---------- */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  box-shadow: 0 4px 15px rgba(0, 174, 239, 0.3);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 0;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--light-gray);
  }

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

  .nav-links a {
    padding: 14px 0;
    border-bottom: 1px solid var(--light-gray);
    width: 100%;
    text-align: center;
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav-cta {
    margin-top: 8px;
    text-align: center;
    display: block !important;
    padding: 14px 24px !important;
  }

  .hamburger {
    display: flex;
  }

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

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

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

  .hero-content {
    text-align: center;
    max-width: 100%;
  }

  .hero p {
    max-width: 100%;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
    text-align: center;
  }

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

  .about-content .section-title,
  .about-content .section-divider {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

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

  .about-features {
    align-items: center;
  }

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

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

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

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

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

  .footer-col h4::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .footer-brand p {
    text-align: center;
  }

  .footer-social {
    justify-content: center;
  }

  .mobile-call-btn {
    display: flex;
  }

  .back-to-top {
    bottom: 85px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

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

  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .trust-bar-inner {
    flex-direction: column;
    gap: 16px;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .contact-form {
    padding: 24px;
  }
}