/* ===================================
   ULTRA PROFESSIONAL CSS
   Muzammil Chemical Services
   =================================== */

/* ===================================
   ROOT VARIABLES & DESIGN TOKENS
   =================================== */
:root {
  /* Premium Color Palette */
  --primary-dark: #0a2e2f;
  --primary: #0f3d3e;
  --primary-light: #1a5557;
  --secondary: #1f6f78;
  --secondary-light: #2d8b96;
  --accent: #e76f51;
  --accent-light: #f4a261;
  --accent-dark: #d55a3a;
  
  /* Neutrals */
  --dark: #1a1a1a;
  --gray-dark: #2d3436;
  --gray: #636e72;
  --gray-light: #b2bec3;
  --light: #f7f9fb;
  --white: #ffffff;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0f3d3e 0%, #1f6f78 100%);
  --gradient-accent: linear-gradient(135deg, #e76f51 0%, #f4a261 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(15, 61, 62, 0.95) 0%, rgba(31, 111, 120, 0.85) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.24);
  --shadow-glow: 0 0 32px rgba(231, 111, 81, 0.3);
  
  /* Glass Effects */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(12px);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;
  --spacing-3xl: 96px;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50%;
}

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

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

body {
  font-family: 'Jameel Noori Nastaleeq', serif;
  color: var(--dark);
  background: var(--white);
  line-height: 2;
  overflow-x: hidden;
  direction: rtl;
}

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

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

ul {
  list-style: none;
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  transition: var(--transition-base);
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
}

.logo:hover .logo-icon {
  transform: scale(1.05) rotate(-5deg);
  box-shadow: var(--shadow-lg);
}

.nav-menu ul {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  padding: 10px 20px;
  font-weight: 600;
  color: var(--gray-dark);
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 5px;
  right: 20px;
  left: 20px;
  height: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

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

.contact-btn {
  background: var(--gradient-accent);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.contact-btn::after {
  display: none;
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 28px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: 
    linear-gradient(135deg, rgba(15, 61, 62, 0.92) 0%, rgba(31, 111, 120, 0.88) 100%),
    url('https://images.unsplash.com/photo-1599427303058-f04cbcf4756f?w=1920&q=80') center/cover no-repeat;
  background-attachment: fixed;
  color: var(--white);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-md);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(231, 111, 81, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(244, 162, 97, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><path d="M54.627 0l.83.828-1.415 1.415L51.8 0h2.827zM5.373 0l-.83.828L5.96 2.243 8.2 0H5.374zM48.97 0l3.657 3.657-1.414 1.414L46.143 0h2.828zM11.03 0L7.372 3.657 8.787 5.07 13.857 0H11.03zm32.284 0L49.8 6.485 48.384 7.9l-7.9-7.9h2.83zM16.686 0L10.2 6.485 11.616 7.9l7.9-7.9h-2.83z" fill="rgba(255,255,255,0.03)" fill-rule="evenodd"/></svg>') repeat;
  opacity: 0.5;
  animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 12px 28px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease;
}

.hero-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s ease 0.2s backwards;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  opacity: 0.95;
  animation: fadeInUp 1s ease 0.4s backwards;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
  animation: fadeInUp 1s ease 0.6s backwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn svg {
  transition: transform var(--transition-base);
}

.btn:hover svg {
  transform: translateX(-4px);
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(231, 111, 81, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(231, 111, 81, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-3px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInUp 1s ease 0.8s backwards;
}

.stat-card {
  padding: var(--spacing-md);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 14px;
  opacity: 0.9;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  right: 50%;
  transform: translateX(50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0.7;
  animation: bounce 2s infinite;
}

.mouse {
  width: 24px;
  height: 40px;
  border: 2px solid var(--white);
  border-radius: 12px;
  position: relative;
}

.mouse::before {
  content: '';
  position: absolute;
  top: 8px;
  right: 50%;
  transform: translateX(50%);
  width: 4px;
  height: 8px;
  background: var(--white);
  border-radius: 2px;
  animation: mouseScroll 2s infinite;
}

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

@keyframes mouseScroll {
  0% { opacity: 1; transform: translateX(50%) translateY(0); }
  100% { opacity: 0; transform: translateX(50%) translateY(12px); }
}

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

/* ===================================
   SECTIONS
   =================================== */
.section {
  padding: var(--spacing-3xl) var(--spacing-md);
  position: relative;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-badge {
  display: inline-block;
  padding: 8px 20px;
  background: linear-gradient(135deg, rgba(231, 111, 81, 0.1) 0%, rgba(244, 162, 97, 0.1) 100%);
  color: var(--accent);
  border: 1px solid rgba(231, 111, 81, 0.2);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.5px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}

.section-description {
  font-size: 18px;
  color: var(--gray);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services-section {
  background: linear-gradient(180deg, var(--white) 0%, var(--light) 100%);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
  cursor: pointer;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 1;
}

.service-card:hover::before {
  opacity: 0.03;
}

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

.service-card.featured {
  border: 2px solid var(--accent);
  position: relative;
}

.featured-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  background: var(--gradient-accent);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  z-index: 10;
  box-shadow: var(--shadow-md);
}

.service-image {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.service-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--spacing-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.service-icon {
  font-size: 48px;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.service-content {
  padding: var(--spacing-lg);
  position: relative;
  z-index: 2;
}

.service-content h3 {
  font-size: 22px;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.service-content p {
  color: var(--gray);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.service-features {
  margin-bottom: var(--spacing-md);
}

.service-features li {
  color: var(--gray-dark);
  margin-bottom: 8px;
  font-size: 14px;
}

.service-link {
  color: var(--accent);
  font-weight: 600;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-link:hover {
  color: var(--accent-dark);
  gap: 10px;
}

/* ===================================
   GALLERY SECTION
   =================================== */
.gallery-section {
  background: var(--white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.gallery-item {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  background: var(--white);
  cursor: pointer;
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.comparison-slider {
  position: relative;
  height: 280px;
  overflow: hidden;
}

.comparison-slider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.gallery-item:hover .comparison-slider img {
  transform: scale(1.05);
}

.comparison-label {
  position: absolute;
  top: 20px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 20px;
  z-index: 10;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.before-label {
  right: 20px;
  background: rgba(239, 68, 68, 0.9);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.after-label {
  right: 20px;
  background: rgba(34, 197, 94, 0.9);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.gallery-caption {
  padding: var(--spacing-md);
}

.gallery-caption h4 {
  font-size: 18px;
  color: var(--primary);
  margin-bottom: 8px;
}

.gallery-caption p {
  font-size: 14px;
  color: var(--gray);
}

/* ===================================
   WHY US SECTION
   =================================== */
.why-us-section {
  background: linear-gradient(180deg, var(--light) 0%, var(--white) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.feature-card {
  padding: var(--spacing-lg);
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-light);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-xl);
}

.feature-card h3 {
  font-size: 20px;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.feature-card p {
  color: var(--gray);
  line-height: 1.8;
  font-size: 15px;
}

/* ===================================
   TESTIMONIALS
   =================================== */
.testimonials {
  margin-top: var(--spacing-3xl);
  padding: var(--spacing-2xl);
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  color: var(--white);
}

.testimonials-title {
  font-size: 32px;
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.testimonial-card {
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-xl);
}

.stars {
  font-size: 20px;
  margin-bottom: var(--spacing-sm);
}

.testimonial-text {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  opacity: 0.95;
}

.testimonial-author strong {
  display: block;
  font-size: 18px;
  margin-bottom: 4px;
}

.testimonial-author span {
  font-size: 14px;
  opacity: 0.8;
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact-section {
  background: linear-gradient(180deg, var(--white) 0%, var(--light) 100%);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  align-items: start;
}

.contact-info h2 {
  font-size: 36px;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.contact-info > p {
  color: var(--gray);
  margin-bottom: var(--spacing-xl);
  font-size: 18px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  padding: var(--spacing-md);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.contact-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(-4px);
}

.contact-item-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 6px;
}

.contact-item p,
.contact-link {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.6;
}

.contact-link:hover {
  color: var(--accent);
}

.contact-form-wrapper {
  position: sticky;
  top: 100px;
}

.contact-box {
  padding: var(--spacing-xl);
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  color: var(--white);
}

.contact-box h3 {
  font-size: 28px;
  margin-bottom: var(--spacing-sm);
}

.contact-box > p {
  opacity: 0.9;
  margin-bottom: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--white);
  font-family: 'Jameel Noori Nastaleeq', serif;
  font-size: 16px;
  transition: var(--transition-base);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-light);
  background: rgba(255, 255, 255, 0.15);
}

.form-group select {
  cursor: pointer;
}

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

.btn-full {
  width: 100%;
  justify-content: center;
  margin-top: var(--spacing-sm);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  max-width: 400px;
}

.footer-brand .logo {
  margin-bottom: var(--spacing-md);
  color: var(--white);
}

.footer-brand p {
  opacity: 0.9;
  line-height: 1.8;
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
  font-size: 18px;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.footer-links ul li,
.footer-services ul li,
.footer-contact ul li {
  margin-bottom: 12px;
  opacity: 0.9;
  transition: var(--transition-base);
}

.footer-links ul li:hover {
  opacity: 1;
  transform: translateX(-4px);
}

.footer-links ul li a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
}

.footer-bottom p {
  opacity: 0.8;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 14px;
  opacity: 0.6;
}

/* ===================================
   WHATSAPP FLOATING BUTTON
   =================================== */
.whatsapp-btn {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition-base);
  animation: pulse 2s infinite;
}

.whatsapp-btn:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4),
                0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  50% {
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4),
                0 0 0 20px rgba(37, 211, 102, 0);
  }
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    transition: transform var(--transition-base);
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-menu ul {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .nav-link {
    display: block;
    width: 100%;
    text-align: center;
    padding: 12px;
  }

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

  .hero {
    padding: var(--spacing-2xl) var(--spacing-sm);
  }

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

  .btn {
    justify-content: center;
  }

  .services-grid,
  .gallery-grid,
  .features-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-form-wrapper {
    position: static;
  }

  .whatsapp-btn {
    width: 56px;
    height: 56px;
    bottom: 20px;
    left: 20px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: var(--spacing-2xl) var(--spacing-sm);
  }

  .section-title {
    font-size: 28px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

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

  .footer-brand {
    max-width: 100%;
  }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* ===================================
   SCROLL REVEAL ANIMATIONS
   =================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

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

/* ===================================
   LOADING STATES
   =================================== */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
  .header,
  .whatsapp-btn,
  .scroll-indicator,
  .contact-section {
    display: none;
  }
}