/* =============================================
   DESIGN TOKENS & CSS CUSTOM PROPERTIES
   ============================================= */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a2e;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text-primary: #f0f0f3;
  --text-secondary: #a0a0b0;
  --text-muted: #6b6b80;
  --accent-cyan: #00d4ff;
  --accent-purple: #7c3aed;
  --accent-gradient: linear-gradient(135deg, #00d4ff, #7c3aed);
  --accent-gradient-hover: linear-gradient(135deg, #00e5ff, #8b5cf6);
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --success: #22c55e;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.5rem;
  --fs-5xl: 4.5rem;

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;
  --container-padding: 0 24px;
  --gap-sm: 12px;
  --gap-md: 20px;
  --gap-lg: 32px;
  --gap-xl: 48px;
  --gap-2xl: 64px;

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

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* =============================================
   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-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: var(--fs-base);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Selection */
::selection {
  background: rgba(0, 212, 255, 0.2);
  color: var(--accent-cyan);
}

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

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

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

.section {
  padding: var(--section-padding);
  position: relative;
}

/* =============================================
   PRELOADER
   ============================================= */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-inner {
  position: relative;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preloader-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--accent-cyan);
  border-right-color: var(--accent-purple);
  animation: preloader-spin 1s linear infinite;
}

.preloader-text {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

#navbar.scrolled {
  padding: 12px 0;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

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

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.logo-bracket {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--gap-lg);
}

.nav-link {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

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

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

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

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.lang-toggle:hover {
  border-color: var(--border-hover);
  background: var(--surface-hover);
}

.lang-option {
  transition: color var(--transition-fast);
}

.lang-option.active {
  color: var(--accent-cyan);
}

.lang-divider {
  color: var(--text-muted);
  font-weight: 300;
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.menu-toggle.active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =============================================
   HERO SECTION
   ============================================= */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Gradient Orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.3), transparent 70%);
  top: -10%;
  right: -5%;
  animation: float-orb 15s ease-in-out infinite;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.3), transparent 70%);
  bottom: -5%;
  left: -5%;
  animation: float-orb 18s ease-in-out infinite reverse;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: float-orb 12s ease-in-out infinite 3s;
}

@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(40px, 30px) scale(1.03); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.hero-greeting {
  font-size: var(--fs-lg);
  color: var(--accent-cyan);
  font-weight: 500;
  margin-bottom: 12px;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.5s;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: var(--fs-5xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.7s;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-size: var(--fs-xl);
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 40px;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.9s;
}

.role-prefix {
  color: var(--text-secondary);
}

.typing-text {
  color: var(--text-primary);
  font-weight: 600;
}

.typing-cursor {
  color: var(--accent-cyan);
  animation: blink 1s step-end infinite;
  font-weight: 300;
}

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

.hero-description {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.8;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 1.1s;
}

.hero-cta {
  display: flex;
  gap: var(--gap-md);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 1.3s;
}

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

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: var(--fs-xs);
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 1.8s;
}

.scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-dot {
  width: 3px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: var(--radius-full);
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { top: 6px; opacity: 1; }
  50% { top: 20px; opacity: 0.3; }
}

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

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-hover);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.1);
}

/* =============================================
   SECTION HEADER
   ============================================= */
.section-header {
  text-align: center;
  margin-bottom: var(--gap-2xl);
}

.section-tag {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--accent-cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-line {
  width: 60px;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  margin: 0 auto;
}

/* =============================================
   ABOUT SECTION
   ============================================= */
#about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--gap-2xl);
  align-items: center;
}

.about-image {
  position: relative;
  display: flex;
  justify-content: center;
}

.image-wrapper {
  position: relative;
  width: 300px;
  height: 300px;
}

.image-placeholder {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.image-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0.05;
}

.placeholder-initials {
  font-family: var(--font-heading);
  font-size: var(--fs-4xl);
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.profile-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-xl);
  position: relative;
  z-index: 1;
}

.image-ring {
  position: absolute;
  inset: -4px;
  border-radius: calc(var(--radius-xl) + 4px);
  background: var(--accent-gradient);
  z-index: 0;
  opacity: 0.6;
  animation: ring-pulse 3s ease-in-out infinite;
}

@keyframes ring-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* Floating Badges */
.floating-badge {
  position: absolute;
  width: 50px;
  height: 50px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  z-index: 2;
  animation: float-badge 6s ease-in-out infinite;
}

.badge-1 {
  top: 10%;
  right: 5%;
  animation-delay: 0s;
}

.badge-2 {
  bottom: 15%;
  left: 5%;
  animation-delay: 2s;
}

.badge-3 {
  bottom: 5%;
  right: 15%;
  animation-delay: 4s;
}

@keyframes float-badge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

/* About Content */
.about-subtitle {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 600;
  margin-bottom: 16px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-md);
  margin: 32px 0;
}

.stat-item {
  text-align: center;
  padding: 16px 8px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.stat-item:hover {
  border-color: rgba(0, 212, 255, 0.2);
  background: rgba(0, 212, 255, 0.05);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-suffix {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: 4px;
}

/* =============================================
   SKILLS SECTION
   ============================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-md);
}

.skill-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.skill-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 212, 255, 0.08);
}

.skill-card:hover::before {
  opacity: 0.05;
}

.skill-icon-wrapper {
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.skill-icon {
  font-size: 48px;
  transition: transform var(--transition-spring);
}

.skill-card:hover .skill-icon {
  transform: scale(1.15);
}

.skill-name {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.skill-desc {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* =============================================
   PROJECTS SECTION
   ============================================= */
#projects {
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-lg);
}

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

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.2);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-image {
  position: relative;
  height: 200px;
  background: var(--gradient);
  overflow: hidden;
}

.project-pattern {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pattern-circle {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.15);
}

.pattern-circle:nth-child(1) {
  width: 120px;
  height: 120px;
  top: 20%;
  right: 15%;
}

.pattern-circle:nth-child(2) {
  width: 80px;
  height: 80px;
  bottom: 20%;
  left: 20%;
}

.pattern-circle:nth-child(3) {
  width: 40px;
  height: 40px;
  top: 40%;
  left: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.project-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
}

.project-link:hover {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  border-color: var(--accent-cyan);
}

.project-info {
  padding: 24px;
}

.project-name {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: 8px;
}

.project-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 4px 12px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--accent-cyan);
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-2xl);
  align-items: start;
}

.contact-heading {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.contact-text {
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
}

.contact-value {
  font-size: var(--fs-sm);
  color: var(--text-primary);
  font-weight: 500;
}

.status-available {
  color: var(--success) !important;
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--gap-sm);
}

.social-link {
  width: 44px;
  height: 44px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.social-link:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
  transform: translateY(-3px);
}

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

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

.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
  background: rgba(0, 212, 255, 0.02);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-submit {
  width: 100%;
  padding: 16px;
  font-size: var(--fs-base);
}

.form-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  padding: 12px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-md);
  color: var(--success);
  font-size: var(--fs-sm);
  font-weight: 500;
  animation: fadeInUp 0.3s ease;
}

.form-success.show {
  display: flex;
}

/* =============================================
   FOOTER
   ============================================= */
#footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

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

.footer-logo {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-text {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  margin-bottom: 8px;
}

.footer-copyright {
  color: var(--text-muted);
  font-size: var(--fs-xs);
}

/* =============================================
   SCROLL TO TOP
   ============================================= */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--accent-cyan);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
  z-index: 99;
}

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

.scroll-top:hover {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
}

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

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

.reveal-left {
  transform: translateX(-40px) translateY(0);
}

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

.reveal-right {
  transform: translateX(40px) translateY(0);
}

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

/* =============================================
   RESPONSIVE DESIGN
   ============================================= */
@media (max-width: 1024px) {
  :root {
    --fs-5xl: 3.5rem;
    --fs-4xl: 2.5rem;
    --fs-3xl: 2rem;
  }

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

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

@media (max-width: 768px) {
  :root {
    --fs-5xl: 2.5rem;
    --fs-4xl: 2rem;
    --fs-3xl: 1.75rem;
    --section-padding: 80px 0;
  }

  /* Mobile Nav */
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(17, 17, 24, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--gap-lg);
    transition: right var(--transition-base);
    border-left: 1px solid var(--border);
  }

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

  .nav-link {
    font-size: var(--fs-lg);
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--gap-xl);
  }

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

  .image-wrapper {
    width: 220px;
    height: 220px;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--gap-xl);
  }

  .contact-form {
    padding: 28px;
  }

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

  /* Hero */
  .hero-name {
    letter-spacing: -1px;
  }

  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --fs-5xl: 2rem;
    --fs-3xl: 1.5rem;
  }

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

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

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

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

  .btn {
    width: 100%;
    text-align: center;
  }
}