/* ========================================
   EMBER ENVIRO & ENGINEERING
   Premium Design System
   ======================================== */

/* === GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* === CSS VARIABLES === */
:root {
  /* Colors */
  --navy-900: #090909;
  --navy-800: #121212;
  --navy-700: #1a1a1a;
  --navy-600: #242424;
  --steel-800: #1e293b;
  --steel-700: #334155;
  --steel-600: #475569;
  --steel-500: #64748b;
  --steel-400: #94a3b8;
  --steel-300: #cbd5e1;
  --steel-200: #e2e8f0;
  --steel-100: #f1f5f9;
  --white: #ffffff;
  --red-500: #e33030;
  --red-400: #ff4d4d;
  --red-600: #cc1a1a;
  --red-700: #990000;
  --red-glow: rgba(227, 48, 48, 0.3);
  --orange-500: #f59e0b;

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-bg-light: rgba(255, 255, 255, 0.7);
  --glass-border-light: rgba(255, 255, 255, 0.3);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 120px 0;
  --container-width: 1200px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 30px rgba(227, 48, 48, 0.15);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  color: var(--steel-300);
  background: var(--navy-900);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol { list-style: none; }

/* === PRELOADER === */
.preloader {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--navy-900);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--steel-700);
  border-top-color: var(--red-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* === CONTAINER === */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--white);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

.text-red { color: var(--red-500); }
.text-steel { color: var(--steel-400); }
.text-white { color: var(--white); }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--red-500);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--red-500);
}

.section-title {
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--steel-400);
  max-width: 600px;
  line-height: 1.8;
}

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

.section-header .section-subtitle {
  margin: 0 auto;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--red-500), var(--red-600));
  color: var(--white);
  box-shadow: 0 4px 20px rgba(227, 48, 48, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(227, 48, 48, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1.5px solid var(--steel-600);
}

.btn-secondary:hover {
  border-color: var(--red-500);
  color: var(--red-400);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

.btn svg, .btn i {
  width: 18px;
  height: 18px;
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(9, 9, 9, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 12px 0;
  box-shadow: var(--shadow-lg);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--white);
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--red-500), var(--red-600));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--white);
}

.nav-logo span.highlight {
  color: var(--red-500);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--steel-300);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0;
  height: 2px;
  background: var(--red-500);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.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 SECTION === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

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

.hero-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(
    135deg,
    rgba(9, 9, 9, 0.92) 0%,
    rgba(9, 9, 9, 0.8) 50%,
    rgba(9, 9, 9, 0.7) 100%
  );
  z-index: 1;
}

.hero-particles {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 2;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--red-500);
  border-radius: 50%;
  opacity: 0.3;
  animation: floatParticle 8s ease-in-out infinite;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; animation-duration: 7s; }
.particle:nth-child(2) { left: 25%; top: 60%; animation-delay: 1s; animation-duration: 9s; }
.particle:nth-child(3) { left: 50%; top: 30%; animation-delay: 2s; animation-duration: 6s; }
.particle:nth-child(4) { left: 70%; top: 70%; animation-delay: 0.5s; animation-duration: 8s; }
.particle:nth-child(5) { left: 85%; top: 40%; animation-delay: 1.5s; animation-duration: 10s; }
.particle:nth-child(6) { left: 40%; top: 80%; animation-delay: 3s; animation-duration: 7s; }

@keyframes floatParticle {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.3; }
  50% { transform: translate(30px, -40px) scale(1.5); opacity: 0.6; }
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 700px;
  padding: 120px 0 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 8px 20px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--red-400);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--red-500);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--red-400), var(--red-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--steel-400);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 560px;
}

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

.hero-stats-mini {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--glass-border);
}

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

.hero-stat-item .number {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
}

.hero-stat-item .number .text-red {
  color: var(--red-500);
}

.hero-stat-item .label {
  font-size: 0.8rem;
  color: var(--steel-500);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

/* === PAGE HERO (Internal pages) === */
.page-hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(227, 48, 48, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.page-hero h1 {
  margin-bottom: 16px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--steel-500);
}

.breadcrumb a:hover {
  color: var(--red-400);
}

.breadcrumb .separator {
  color: var(--steel-600);
}

/* === SERVICES CARDS === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--red-500), var(--red-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(227, 48, 48, 0.2);
  box-shadow: var(--shadow-glow);
}

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

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(227, 48, 48, 0.15), rgba(227, 48, 48, 0.05));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: var(--red-500);
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--red-500), var(--red-600));
  color: var(--white);
  transform: scale(1.05);
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.service-card p {
  color: var(--steel-400);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-card .learn-more {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--red-500);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-card .learn-more svg {
  transition: transform var(--transition-base);
}

.service-card:hover .learn-more svg {
  transform: translateX(4px);
}

/* === STATS SECTION === */
.stats-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2310b981' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  z-index: 1;
}

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

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number .suffix {
  color: var(--red-500);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--steel-400);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 500;
}

/* === PROJECTS GRID === */
.projects-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  border: 1px solid var(--steel-700);
  background: transparent;
  color: var(--steel-400);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--red-500);
  border-color: var(--red-500);
  color: var(--white);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 24px;
}

.project-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 320px;
  cursor: pointer;
  group: true;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover img {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(to top, rgba(9, 9, 9, 0.95) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  transition: all var(--transition-base);
}

.project-card:hover .project-overlay {
  background: linear-gradient(to top, rgba(9, 9, 9, 0.98) 0%, rgba(9, 9, 9, 0.5) 100%);
}

.project-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--red-400);
  margin-bottom: 8px;
}

.project-overlay h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.project-location {
  font-size: 0.85rem;
  color: var(--steel-400);
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
  color: var(--steel-300);
  font-size: 0.9rem;
  line-height: 1.6;
}

.project-card:hover .project-details {
  max-height: 100px;
  margin-top: 12px;
}

/* === TESTIMONIALS === */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  border-color: rgba(227, 48, 48, 0.2);
  transform: translateY(-4px);
}

.testimonial-stars {
  color: var(--orange-500);
  margin-bottom: 16px;
  font-size: 0.9rem;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--steel-300);
  margin-bottom: 24px;
  font-style: italic;
}

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

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red-500), var(--red-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
}

.testimonial-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
}

.testimonial-info p {
  font-size: 0.8rem;
  color: var(--steel-500);
  margin-bottom: 0;
}

/* === ABOUT SECTIONS === */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.about-image::after {
  content: '';
  position: absolute;
  bottom: -12px;
  right: -12px;
  width: 60%;
  height: 60%;
  border: 2px solid var(--red-500);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.value-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(10px);
}

.value-card:hover {
  transform: translateY(-6px);
  border-color: rgba(227, 48, 48, 0.2);
  box-shadow: var(--shadow-glow);
}

.value-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(227, 48, 48, 0.15), rgba(227, 48, 48, 0.05));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
  color: var(--red-500);
}

.value-card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--steel-400);
}

/* Mission / Vision */
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.mission-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.mission-card:hover {
  border-color: rgba(227, 48, 48, 0.2);
}

.mission-card h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.mission-card p {
  color: var(--steel-400);
  line-height: 1.8;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.team-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.team-card:hover {
  transform: translateY(-6px);
  border-color: rgba(227, 48, 48, 0.2);
}

.team-photo {
  height: 240px;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-600));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-photo .initials {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--red-500);
  opacity: 0.3;
}

.team-info {
  padding: 20px 24px;
  text-align: center;
}

.team-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.team-info p {
  font-size: 0.85rem;
  color: var(--red-500);
  margin-bottom: 0;
}

/* === SERVICE DETAIL === */
.service-detail {
  padding: var(--section-padding);
}

.service-detail:nth-child(even) {
  background: var(--navy-800);
}

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

.service-detail:nth-child(even) .service-detail-grid {
  direction: rtl;
}

.service-detail:nth-child(even) .service-detail-grid > * {
  direction: ltr;
}

.service-detail-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.service-detail-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-slow);
}

.service-detail-image:hover img {
  transform: scale(1.03);
}

.service-detail-content h2 {
  margin-bottom: 16px;
}

.service-detail-content p {
  color: var(--steel-400);
  line-height: 1.8;
  margin-bottom: 24px;
}

.feature-list {
  margin-bottom: 28px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  color: var(--steel-300);
  font-size: 0.95rem;
}

.feature-list li .check {
  color: var(--red-500);
  font-weight: 700;
  margin-top: 2px;
  flex-shrink: 0;
}

/* === CONTACT FORM === */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
}

.contact-form {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(10px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--steel-300);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-base);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--red-500);
  box-shadow: 0 0 0 3px rgba(227, 48, 48, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-group select option {
  background: var(--navy-800);
  color: var(--white);
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.contact-info-card:hover {
  border-color: rgba(227, 48, 48, 0.2);
  transform: translateY(-2px);
}

.contact-info-card .info-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, rgba(227, 48, 48, 0.15), rgba(227, 48, 48, 0.05));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 1.2rem;
  color: var(--red-500);
}

.contact-info-card h4 {
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.contact-info-card p {
  font-size: 0.9rem;
  color: var(--steel-400);
  margin-bottom: 0;
  line-height: 1.6;
}

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 300px;
  margin-top: 20px;
  border: 1px solid var(--glass-border);
  background: var(--navy-800);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--steel-500);
}

/* === FOOTER === */
.footer {
  background: var(--navy-800);
  border-top: 1px solid var(--glass-border);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.75fr 0.75fr 1.5fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--steel-400);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: 16px;
  margin-bottom: 20px;
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--steel-700);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--steel-400);
  font-size: 0.9rem;
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: var(--red-500);
  border-color: var(--red-500);
  color: var(--white);
  transform: translateY(-2px);
}

.footer-column h4 {
  font-size: 1rem;
  margin-bottom: 20px;
  position: relative;
}

.footer-column h4::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 0;
  width: 24px;
  height: 2px;
  background: var(--red-500);
}

.footer-column ul li {
  margin-bottom: 10px;
  font-size: 0.85rem;
  word-break: break-word;
}

.footer-column ul li a {
  font-size: 0.9rem;
  color: var(--steel-400);
}

.footer-column ul li a:hover {
  color: var(--red-400);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--steel-500);
}

/* === WHATSAPP FLOATING BUTTON === */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.8rem;
  z-index: 999;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  cursor: pointer;
  animation: whatsappPulse 2s ease-in-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1); }
}

/* === SCROLL TO TOP === */
.scroll-top {
  position: fixed;
  bottom: 100px;
  right: 34px;
  width: 44px;
  height: 44px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 998;
  backdrop-filter: blur(10px);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--red-500);
  border-color: var(--red-500);
  transform: translateY(-2px);
}

/* === SCROLL REVEAL ANIMATIONS === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* === SECTIONS PADDING === */
.section {
  padding: var(--section-padding);
  position: relative;
}

.section-dark {
  background: var(--navy-800);
}

.section-gradient {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .about-grid,
  .service-detail-grid,
  .mission-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .service-detail:nth-child(even) .service-detail-grid {
    direction: ltr;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

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

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: rgba(9, 9, 9, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    gap: 24px;
    transition: right var(--transition-smooth);
    border-left: 1px solid var(--glass-border);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  .nav-cta .btn {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-content {
    padding: 140px 0 60px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-stats-mini {
    gap: 24px;
    flex-wrap: wrap;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

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

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

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

  .page-hero {
    padding: 130px 0 70px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 2rem;
  }

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