/* ============================================
   Khaled Programmer - Portfolio Style
   Version: 1.0
   Author: Khaled Programmer
   ============================================ */

/* ========== CSS Variables ========== */
:root {
  /* Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --border-glass: rgba(255, 255, 255, 0.08);
  
  --electric-blue: #00b4d8;
  --electric-blue-light: #48cae4;
  --electric-blue-dark: #0077b6;
  --electric-glow: rgba(0, 180, 216, 0.3);
  --electric-glow-strong: rgba(0, 180, 216, 0.5);
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.4);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--electric-glow);
  
  /* Glassmorphism */
  --glass-blur: blur(16px);
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  
  /* Typography */
  --font-primary: 'Segoe UI', 'Tahoma', 'Arial', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50%;
}

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

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

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
  background: var(--electric-blue);
  color: var(--bg-primary);
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--electric-blue);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--electric-blue-light);
}

/* ========== Scroll Progress Bar ========== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--electric-blue), var(--electric-blue-light));
  z-index: 10000;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px var(--electric-glow);
}

/* ========== Custom Cursor ========== */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--electric-blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  box-shadow: 0 0 10px var(--electric-glow);
}

.cursor-ring {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 2px solid var(--electric-blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.cursor-ring.hover {
  width: 60px;
  height: 60px;
  border-color: var(--electric-blue-light);
  background: rgba(0, 180, 216, 0.1);
}

.cursor-dot.click {
  width: 12px;
  height: 12px;
  background: var(--electric-blue-light);
}

/* ========== Loading Screen ========== */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  text-align: center;
}

.loader-logo {
  font-size: 4rem;
  font-weight: 900;
  color: var(--electric-blue);
  margin-bottom: 2rem;
  animation: loaderPulse 1.5s ease-in-out infinite;
  text-shadow: 0 0 40px var(--electric-glow), 0 0 80px var(--electric-glow);
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin: 0 auto 1rem;
}

.loader-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--electric-blue), var(--electric-blue-light));
  border-radius: 3px;
  animation: loaderFill 1.5s ease-in-out forwards;
  box-shadow: 0 0 10px var(--electric-glow);
}

.loader-text {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  letter-spacing: 2px;
}

@keyframes loaderPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

@keyframes loaderFill {
  0% { width: 0%; }
  100% { width: 100%; }
}

/* ========== Container ========== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========== Sections ========== */
.section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-badge {
  display: inline-block;
  background: rgba(0, 180, 216, 0.1);
  color: var(--electric-blue-light);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  border: 1px solid rgba(0, 180, 216, 0.2);
  margin-bottom: 1rem;
  letter-spacing: 1px;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary), var(--electric-blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.section-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--electric-blue), transparent);
  margin: 1.5rem auto 0;
  border-radius: 3px;
}

/* ========== Glass Card ========== */
.glass-card {
  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);
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--glass-shadow), 0 0 30px var(--electric-glow);
  border-color: rgba(0, 180, 216, 0.2);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.8rem;
  border-radius: 50px;
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  cursor: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  border: none;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--electric-blue), var(--electric-blue-dark));
  color: var(--text-primary);
  box-shadow: 0 4px 20px var(--electric-glow);
}

.btn-primary:hover {
  box-shadow: 0 8px 30px var(--electric-glow-strong);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  border-color: var(--electric-blue);
  box-shadow: 0 0 20px var(--electric-glow);
}

.btn-whatsapp {
  background: #25D366;
  color: #fff;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
  transform: translateY(-2px);
}

/* Ripple Effect */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleAnim {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ========== Navbar ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  padding: 1rem 0;
  transition: all var(--transition-base);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0.7rem 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav-logo span {
  color: var(--electric-blue);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(0, 180, 216, 0.1);
}

.nav-link.active {
  color: var(--electric-blue);
}

/* Nav Toggle (Mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: none;
  padding: 5px;
  z-index: 100;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

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

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

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

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

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: var(--electric-blue);
  top: -10%;
  right: -10%;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: var(--electric-blue-light);
  bottom: -10%;
  left: -10%;
  animation-delay: -3s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: var(--electric-blue-dark);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -6s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: rgba(0, 180, 216, 0.1);
  color: var(--electric-blue-light);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  border: 1px solid rgba(0, 180, 216, 0.2);
  margin-bottom: 2rem;
  animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  margin-bottom: 1.5rem;
  line-height: 1.15;
  min-height: 4.2rem;
  animation: fadeInUp 0.8s ease forwards 0.2s;
  opacity: 0;
}

.typing-text {
  background: linear-gradient(135deg, var(--text-primary), var(--electric-blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.typing-cursor {
  display: inline-block;
  color: var(--electric-blue);
  -webkit-text-fill-color: var(--electric-blue);
  animation: blink 0.7s step-end infinite;
  font-weight: 100;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-desc {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease forwards 0.4s;
  opacity: 0;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease forwards 0.6s;
  opacity: 0;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: fadeInUp 0.8s ease forwards 1s;
  opacity: 0;
}

.scroll-indicator span {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  letter-spacing: 2px;
}

.scroll-mouse {
  width: 24px;
  height: 36px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-wheel {
  width: 3px;
  height: 8px;
  background: var(--electric-blue);
  border-radius: 3px;
  animation: scrollWheel 1.5s ease-in-out infinite;
}

@keyframes scrollWheel {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(10px); opacity: 0; }
}

/* ========== About Section ========== */
.about-card {
  max-width: 650px;
  margin: 0 auto;
  padding: 3rem;
  text-align: center;
}

.about-image-wrapper {
  width: 150px;
  height: 150px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--electric-blue);
  box-shadow: 0 0 30px var(--electric-glow);
  transition: all var(--transition-base);
}

.about-image-wrapper:hover {
  transform: scale(1.05);
  box-shadow: 0 0 40px var(--electric-glow-strong);
}

.about-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-icon {
  width: 70px;
  height: 70px;
  background: rgba(0, 180, 216, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--electric-blue);
  border: 1px solid rgba(0, 180, 216, 0.2);
}

.about-name {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.about-role {
  color: var(--electric-blue-light);
  font-size: var(--font-size-sm);
  font-weight: 600;
  display: block;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.about-desc {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.tag {
  background: rgba(0, 180, 216, 0.08);
  color: var(--electric-blue-light);
  font-size: var(--font-size-xs);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  border: 1px solid rgba(0, 180, 216, 0.15);
  font-weight: 500;
}

/* ========== Services Section ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  padding: 2.5rem 2rem;
  text-align: center;
}

.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(0, 180, 216, 0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--electric-blue);
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: rgba(0, 180, 216, 0.15);
  box-shadow: 0 0 20px var(--electric-glow);
  transform: scale(1.1);
}

.service-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.service-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========== Works Section ========== */
.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.work-card {
  overflow: hidden;
}

.work-image {
  position: relative;
}

.work-placeholder {
  height: 240px;
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.1), rgba(0, 119, 182, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.work-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(0, 180, 216, 0.05));
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.work-letter {
  font-size: 5rem;
  font-weight: 900;
  color: rgba(0, 180, 216, 0.3);
  z-index: 1;
}

.work-image-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  transition: transform var(--transition-base);
}

.work-card:hover .work-image-img {
  transform: scale(1.05);
}

.work-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: linear-gradient(135deg, var(--electric-blue), var(--electric-blue-dark));
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 0.35rem 0.9rem;
  border-radius: 50px;
  box-shadow: 0 4px 15px var(--electric-glow);
  z-index: 2;
}

.work-info {
  padding: 2rem;
}

.work-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.work-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.2rem;
}

.work-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.work-feature {
  font-size: var(--font-size-xs);
  background: rgba(0, 180, 216, 0.06);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  border: 1px solid rgba(0, 180, 216, 0.1);
  color: var(--text-secondary);
}

.work-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.work-btn {
  font-size: var(--font-size-sm);
  padding: 0.7rem 1.5rem;
}

/* ========== Why Me Section ========== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-card {
  padding: 2.5rem 2rem;
  text-align: center;
}

.why-check {
  width: 50px;
  height: 50px;
  background: rgba(0, 180, 216, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  font-size: var(--font-size-xl);
  color: var(--electric-blue);
  border: 1px solid rgba(0, 180, 216, 0.2);
  transition: all var(--transition-base);
}

.why-card:hover .why-check {
  background: rgba(0, 180, 216, 0.2);
  box-shadow: 0 0 20px var(--electric-glow);
  transform: scale(1.1) rotate(360deg);
}

.why-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.why-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========== Stats Section ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-card {
  padding: 3rem 2rem;
  text-align: center;
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--text-primary), var(--electric-blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 1px;
}

/* ========== Contact Section ========== */
.contact-card {
  max-width: 600px;
  margin: 0 auto;
  padding: 3rem;
  text-align: center;
}

.contact-number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: 1px;
  direction: ltr;
}

.contact-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-btn {
  font-size: var(--font-size-sm);
  padding: 0.8rem 1.5rem;
}

/* ========== Footer ========== */
.footer {
  padding: 3rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

.footer-logo {
  font-size: var(--font-size-lg);
  font-weight: 800;
  margin-bottom: 0.8rem;
}

.footer-logo span {
  color: var(--electric-blue);
}

.footer-copy {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ========== Back to Top Button ========== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 44px;
  height: 44px;
  background: rgba(0, 180, 216, 0.15);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--electric-blue);
  cursor: none;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--electric-blue);
  color: var(--bg-primary);
  box-shadow: 0 0 20px var(--electric-glow);
  transform: translateY(-3px);
}

/* ========== Animations ========== */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

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

/* ========== Responsive - Tablet ========== */
@media (max-width: 991px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .hero-title {
    font-size: var(--font-size-4xl);
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }
}

/* ========== Responsive - Mobile ========== */
@media (max-width: 767px) {
  /* Show mobile nav toggle */
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    padding: 5rem 2rem 2rem;
    transition: right var(--transition-base);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 0.25rem;
  }

  .nav-link {
    font-size: var(--font-size-base);
    padding: 0.8rem 1rem;
    display: block;
  }

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

  .hero-desc {
    font-size: var(--font-size-base);
  }

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

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

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

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

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

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

  .section {
    padding: 4rem 0;
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .about-card {
    padding: 2rem;
  }

  .work-placeholder {
    height: 200px;
  }

  .work-info {
    padding: 1.5rem;
  }

  .contact-card {
    padding: 2rem;
  }

  .contact-number {
    font-size: var(--font-size-xl);
  }

  .stat-number {
    font-size: 2.5rem;
  }

  /* Disable custom cursor on mobile */
  .cursor-dot,
  .cursor-ring {
    display: none;
  }

  body {
    cursor: auto;
  }

  .btn {
    cursor: pointer;
  }
}

/* ========== Responsive - Small Mobile ========== */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }

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

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