/* =================================================================
   US Strategic Alliance - Main Stylesheet
   File: css/styles.css
   ================================================================= */

/* =================================================================
   1. CSS VARIABLES & RESET
   ================================================================= */
:root {
  --primary-color: #0f0f23;
  --secondary-color: #4a7fff;
  --accent-color: #ff6b35;
  --glow-color: #00d4ff;
  --dark-bg: #050510;
  --light-bg: #fafbff;
  --card-bg: rgba(255, 255, 255, 0.03);
  --text-dark: #0a0a1a;
  --text-light: #94a3b8;
  --border-radius: 20px;
  --transition: all 0.4s cubic-bezier(0.43, 0.13, 0.23, 0.96);
  
  /* Navbar height variables for consistent spacing */
  --navbar-height: 80px;
  --navbar-height-mobile: 70px;
  --navbar-height-small: 65px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-height); /* Clean scroll offset */
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  background: #000;
  padding-top: var(--navbar-height); /* Single clean fix */
}

/* Noise Texture Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.03;
  z-index: 1;
  pointer-events: none;
  background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMDAiIGhlaWdodD0iMzAwIj48ZmlsdGVyIGlkPSJhIj48ZmVUdXJidWxlbmNlIGJhc2VGcmVxdWVuY3k9Ii43NSIgbnVtT2N0YXZlcz0iNCIgc3RpdGNoVGlsZXM9InN0aXRjaCI+PC9mZVR1cmJ1bGVuY2U+PC9maWx0ZXI+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsdGVyPSJ1cmwoI2EpIiBvcGFjaXR5PSIxIj48L3JlY3Q+PC9zdmc+');
}

/* =================================================================
   2. NAVIGATION
   ================================================================= */
.navbar {
  background: rgba(10, 10, 26, 0.85) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1rem 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: fixed;
  width: 100%;
  z-index: 1000;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  background: rgba(5, 5, 16, 0.95) !important;
  box-shadow: 0 10px 40px rgba(0, 212, 255, 0.1);
}

.navbar-brand {
  font-weight: 800;
  background: linear-gradient(135deg, var(--glow-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  transition: var(--transition);
  position: relative;
}

.navbar-brand::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--glow-color), transparent);
  transition: width 0.3s ease;
}

.navbar-brand:hover::after {
  width: 100%;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.8) !important;
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  padding: 0.6rem 1.2rem !important;
  margin: 0 0.25rem;
  border-radius: 50px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
}

.navbar-nav .nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.navbar-nav .nav-link:hover::before {
  left: 100%;
}

.navbar-nav .nav-link:hover {
  color: var(--glow-color) !important;
  transform: translateY(-2px);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.navbar-nav .nav-link.active {
  background: linear-gradient(135deg, var(--secondary-color), var(--glow-color));
  color: white !important;
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
}

/* =================================================================
   3. HERO SECTION
   ================================================================= */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(180deg, #000 0%, #0a0a1a 100%);
}

.hero-grid {
  position: absolute;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(74, 127, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 127, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
}

.particles {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.particle {
  position: absolute;
  background: var(--glow-color);
  border-radius: 50%;
  opacity: 0.5;
  animation: float 20s infinite;
  box-shadow: 0 0 10px var(--glow-color);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.2;
  background-size: cover;
  background-position: center;
  filter: contrast(1.2);
  animation: zoomPan 30s ease-in-out infinite alternate;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 1000px;
  margin: 0 auto;
  animation: heroEntry 1.5s ease-out;
}

.hero-content h1 {
  background: linear-gradient(135deg, #fff 0%, var(--glow-color) 50%, #fff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  letter-spacing: -2px;
  animation: glow 3s ease-in-out infinite;
}

.hero-content p {
  color: rgba(255, 255, 255, 0.8);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  margin-bottom: 3rem;
  font-weight: 300;
  letter-spacing: 0.5px;
}

/* Hero Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  margin-top: 4rem;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(74, 127, 255, 0.1), rgba(0, 212, 255, 0.05));
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  position: relative;
  overflow: hidden;
}

.hero-stats::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
}

.stat-item {
  text-align: center;
  color: white;
  position: relative;
  z-index: 1;
  animation: statPulse 3s ease-in-out infinite;
  animation-delay: calc(var(--i) * 0.2s);
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--glow-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.stat-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  opacity: 0.8;
}

/* =================================================================
   4. SECTIONS & CONTENT
   ================================================================= */
.feature-section {
  padding: 6rem 0;
  background: #000;
  position: relative;
}

.feature-section:nth-child(even) {
  background: linear-gradient(180deg, #000 0%, #0a0a1a 50%, #000 100%);
}

.section-badge {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(74, 127, 255, 0.1));
  color: var(--glow-color);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  animation: badgePulse 2s ease-in-out infinite;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  background: linear-gradient(135deg, #fff, var(--glow-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  padding-bottom: 1.0rem;
  line-height: 1.1;
  letter-spacing: -1px;
}

.section-description {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.2rem;
  line-height: 1.8;
  font-weight: 300;
}

/* =================================================================
   5. SERVICE CARDS
   ================================================================= */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 25px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  cursor: pointer;
}

.service-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--glow-color), var(--secondary-color), var(--accent-color), var(--secondary-color));
  border-radius: 25px;
  opacity: 0;
  z-index: -1;
  transition: opacity 0.5s ease;
  animation: borderRotate 3s linear infinite;
}

.service-card:hover::before {
  opacity: 1;
}

.service-card:hover {
  transform: translateY(-10px) scale(1.02);
  background: linear-gradient(135deg, rgba(74, 127, 255, 0.1), rgba(0, 212, 255, 0.05));
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
}

.service-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.service-card:hover::after {
  opacity: 1;
  animation: shimmer 1s ease;
}

.service-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--secondary-color), var(--glow-color));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  position: relative;
  box-shadow: 0 10px 30px rgba(74, 127, 255, 0.3);
  animation: iconFloat 3s ease-in-out infinite;
}

.service-icon i {
  color: white;
  font-size: 1.8rem;
}

.service-card h3 {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.service-card p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

/* =================================================================
   6. REAL ESTATE SHOWCASE
   ================================================================= */
.real-estate-showcase {
  background: linear-gradient(135deg, #667eea 0%, #f093fb 50%, #f5576c 100%);
  color: white;
  padding: 5rem 3rem;
  border-radius: 30px;
  margin: 4rem 0;
  position: relative;
  overflow: hidden;
}

.real-estate-showcase::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
}

.luxury-hotel-img {
  width: 100%;
  max-width: 480px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.15);
  filter: contrast(1.1) saturate(1.05);
}

.project-highlight {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 2rem;
  margin-top: 2rem;
  position: relative;
  overflow: hidden;
}

.project-highlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: slideGlow 3s ease-in-out infinite;
}

/* =================================================================
   7. FORMS
   ================================================================= */
.contact-section {
  background: linear-gradient(180deg, #000 0%, #0a0a1a 100%);
  padding: 6rem 0;
  position: relative;
}

.contact-form {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 3rem;
  border-radius: 30px;
  box-shadow: 0 20px 50px rgba(0, 212, 255, 0.1);
}

.form-control,
.form-select {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 1rem;
  font-size: 1rem;
  color: white !important;
  transition: all 0.3s ease;
}

/* Custom select arrow */
.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2300d4ff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px 12px;
}

/* Placeholder styling */
.form-control::placeholder {
  color: rgba(255, 255, 255, 0.5) !important;
  opacity: 1 !important;
}

/* Dropdown options */
.form-select option {
  background: #1a1a2e !important;
  color: #ffffff !important;
}

.form-select option:hover,
.form-select option:checked {
  background: #4a7fff !important;
  color: #ffffff !important;
}

/* Autofill */
.form-control:-webkit-autofill,
.form-control:-webkit-autofill:hover,
.form-control:-webkit-autofill:focus {
  -webkit-text-fill-color: white !important;
  -webkit-box-shadow: 0 0 0px 1000px rgba(255, 255, 255, 0.1) inset !important;
  transition: background-color 5000s ease-in-out 0s !important;
}

.form-control:focus,
.form-select:focus {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: var(--glow-color) !important;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2) !important;
  color: white !important;
  outline: none;
}

.form-label {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

/* Form validation states */
.form-control.is-invalid,
.form-select.is-invalid {
  border-color: #ef4444 !important;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.2) !important;
}

.form-control.is-valid,
.form-select.is-valid {
  border-color: #22c55e !important;
  box-shadow: 0 0 20px rgba(34, 197, 94, 0.2) !important;
}

/* =================================================================
   8. BUTTONS
   ================================================================= */
.btn-primary {
  background: linear-gradient(135deg, var(--secondary-color), var(--glow-color));
  border: none;
  padding: 1rem 3rem;
  font-weight: 700;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  color: white;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.4);
}

#submitBtn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

#btnSpinner {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* =================================================================
   9. COMPLIANCE CARDS
   ================================================================= */
.compliance-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 25px;
  padding: 2.5rem;
  height: 450px;
  transition: all 0.5s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: white;
  position: relative;
}

.compliance-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
  border-color: var(--glow-color);
}

.compliance-card .img-container {
  width: 100%;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  padding: 1rem;
}

.compliance-card .img-container svg {
  width: 100px;
  height: 100px;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.3));
  transition: all 0.3s ease;
}

.compliance-card:hover .img-container svg {
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.6));
  transform: scale(1.1);
}

.compliance-card h5 {
  color: var(--glow-color);
  font-weight: 700;
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.compliance-card p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  font-size: 0.95rem;
  flex-grow: 1;
  display: flex;
  align-items: center;
}

/* Swiper Navigation */
.swiper-button-next,
.swiper-button-prev {
  color: var(--glow-color);
  background: rgba(0, 212, 255, 0.1);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  backdrop-filter: blur(10px);
}

.swiper-button-next:after,
.swiper-button-prev:after {
  font-size: 20px;
}

/* =================================================================
   10. ALERTS & FEEDBACK
   ================================================================= */
.alert {
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  border-radius: 10px;
  animation: slideIn 0.3s ease;
  position: relative;
}

.alert-success {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #86efac;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-info {
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #93c5fd;
}

/* =================================================================
   11. FOOTER
   ================================================================= */
footer {
  background: #000;
  color: white;
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-content h5,
.footer-content h6 {
  color: var(--glow-color);
  margin-bottom: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-content ul {
  list-style: none;
  padding: 0;
}

.footer-content li {
  margin-bottom: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.3s ease;
  cursor: pointer;
}

.footer-content li:hover {
  color: var(--glow-color);
}

.contact-info {
  color: rgba(255, 255, 255, 0.8);
}

.contact-info i {
  color: var(--glow-color);
  margin-right: 1rem;
}

/* =================================================================
   12. MODALS
   ================================================================= */
.modal-content {
  background: linear-gradient(135deg, #0a0a1a, #1a1a3a);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
}

.modal-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-close {
  filter: invert(1);
}

/* =================================================================
   13. UTILITY CLASSES
   ================================================================= */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 1s ease;
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 1s ease;
}

.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.success-animation {
  animation: successPulse 0.5s ease;
}

/* =================================================================
   14. ANIMATIONS
   ================================================================= */
@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0;
  }
  10% { opacity: 0.5; }
  90% { opacity: 0.5; }
  100% {
    transform: translateY(-100vh) translateX(100px) scale(0);
    opacity: 0;
  }
}

@keyframes zoomPan {
  0% { transform: scale(1) translateX(0); }
  100% { transform: scale(1.1) translateX(-2%); }
}

@keyframes heroEntry {
  from {
    opacity: 0;
    transform: translateY(50px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes glow {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2) drop-shadow(0 0 20px rgba(0, 212, 255, 0.5)); }
}

@keyframes rotate {
  100% { transform: rotate(360deg); }
}

@keyframes statPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4); }
  50% { box-shadow: 0 0 20px 10px rgba(0, 212, 255, 0); }
}

@keyframes borderRotate {
  100% { filter: hue-rotate(360deg); }
}

@keyframes shimmer {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes slideGlow {
  0% { left: -100%; }
  100% { left: 100%; }
}

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

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

@keyframes successPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* =================================================================
   15. RESPONSIVE
   ================================================================= */
@media (max-width: 768px) {
  body {
    padding-top: var(--navbar-height-mobile);
  }
  
  html {
    scroll-padding-top: var(--navbar-height-mobile);
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }

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

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-form {
    padding: 2rem;
  }
}

@media (max-width: 576px) {
  body {
    padding-top: var(--navbar-height-small);
  }
  
  html {
    scroll-padding-top: var(--navbar-height-small);
  }
  
  .navbar {
    padding: 0.75rem 0;
  }
  
  .navbar.scrolled {
    padding: 0.5rem 0;
  }
}