:root {
  --color-bg: #0a0a0a;
  --color-bg-secondary: #121212;
  --color-bg-tertiary: #1a1a1a;
  --color-text: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-accent: #6366f1;
  --color-accent-dark: #4f46e5;
  --color-gradient-start: #6366f1;
  --color-gradient-end: #8b5cf6;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --border-radius: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ===================================
   Navigation
   =================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 30px rgba(99, 102, 241, 0.1);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
  text-transform: lowercase;
  position: relative;
  transition: var(--transition);
}

.logo:hover {
  text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.logo span {
  color: var(--color-accent);
  text-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-links a:not(.btn-primary)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
  transition: width 0.3s ease;
}

.nav-links a:not(.btn-primary):hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
  animation: bgPulse 8s ease-in-out infinite;
}

.audio-visualizer {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  align-items: flex-end;
  height: 150px;
  z-index: 1;
  opacity: 0.4;
}

.audio-visualizer .bar {
  width: 6px;
  background: linear-gradient(to top, var(--color-accent), var(--color-gradient-end));
  border-radius: 4px 4px 0 0;
  animation: visualize 1.2s ease-in-out infinite;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.audio-visualizer .bar:nth-child(1) { animation-delay: 0s; height: 30%; }
.audio-visualizer .bar:nth-child(2) { animation-delay: 0.1s; height: 50%; }
.audio-visualizer .bar:nth-child(3) { animation-delay: 0.2s; height: 70%; }
.audio-visualizer .bar:nth-child(4) { animation-delay: 0.3s; height: 40%; }
.audio-visualizer .bar:nth-child(5) { animation-delay: 0.4s; height: 80%; }
.audio-visualizer .bar:nth-child(6) { animation-delay: 0.5s; height: 60%; }
.audio-visualizer .bar:nth-child(7) { animation-delay: 0.6s; height: 45%; }
.audio-visualizer .bar:nth-child(8) { animation-delay: 0.7s; height: 65%; }
.audio-visualizer .bar:nth-child(9) { animation-delay: 0.8s; height: 55%; }
.audio-visualizer .bar:nth-child(10) { animation-delay: 0.9s; height: 35%; }

.floating-notes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.floating-notes .note {
  position: absolute;
  font-size: 2rem;
  color: rgba(99, 102, 241, 0.3);
  animation: floatNote 15s ease-in-out infinite;
}

.floating-notes .note:nth-child(1) {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.floating-notes .note:nth-child(2) {
  top: 60%;
  left: 80%;
  animation-delay: 3s;
}

.floating-notes .note:nth-child(3) {
  top: 40%;
  left: 20%;
  animation-delay: 6s;
}

.floating-notes .note:nth-child(4) {
  top: 70%;
  left: 60%;
  animation-delay: 9s;
}

.floating-notes .note:nth-child(5) {
  top: 30%;
  left: 90%;
  animation-delay: 12s;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  animation: fadeInUp 1s ease-out;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
  text-shadow: 0 0 40px rgba(99, 102, 241, 0.3);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 3s ease-in-out infinite;
}

.text-light {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  animation: float 3s ease-in-out infinite;
  z-index: 1;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
}

/* ===================================
   Buttons
   =================================== */

.btn-primary {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: var(--color-accent);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: transparent;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(99, 102, 241, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.btn-secondary:hover::before {
  width: 300px;
  height: 300px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-accent);
}

.btn-large {
  padding: 1.125rem 2.5rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

/* ===================================
   Labels Section
   =================================== */

.labels {
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.waveform-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  opacity: 0.5;
  z-index: 0;
}

.waveform-bg svg {
  width: 100%;
  height: 100%;
}

.waveform-bg path {
  animation: waveMove 4s ease-in-out infinite;
}

.waveform-bg path:nth-child(2) {
  animation-delay: 0.5s;
}

.labels .container {
  position: relative;
  z-index: 1;
}

.labels-intro {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.labels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  align-items: center;
}

.label-item {
  text-align: center;
  padding: var(--spacing-sm) var(--spacing-md);
}

.label-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.label-item:hover .label-logo {
  color: var(--color-text);
  text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
  transform: scale(1.05);
}

/* ===================================
   Section Styles
   =================================== */

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

.section-tag {
  display: inline-block;
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 20px;
}

.section-header h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-description {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  margin-top: var(--spacing-sm);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===================================
   About Section
   =================================== */

.about {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.about::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

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

.about-card {
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card-glow {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
  transition: left 0.5s ease;
}

.about-card:hover .card-glow {
  left: 100%;
}

.about-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--color-accent);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.5));
  animation: iconPulse 2s ease-in-out infinite;
}

.about-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.about-card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===================================
   Services Section
   =================================== */

.services {
  padding: var(--spacing-xl) 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.service-item {
  position: relative;
  padding-left: var(--spacing-lg);
}

.service-number {
  position: absolute;
  left: 0;
  top: 0;
  font-size: 3rem;
  font-weight: 900;
  color: rgba(99, 102, 241, 0.2);
  line-height: 1;
}

.service-item h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.service-item p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===================================
   Contact Section
   =================================== */

.contact {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-secondary);
}

.contact-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.contact-info p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

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

.feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.feature svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-form {
  background: var(--color-bg);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.form-input {
  width: 100%;
  padding: 1rem;
  background: var(--color-bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-secondary);
}

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

.form-note {
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-align: center;
}

/* ===================================
   Footer
   =================================== */

.footer {
  padding: var(--spacing-xl) 0 var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-brand p {
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: var(--spacing-xl);
}

.footer-col h4 {
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--spacing-xs);
}

.footer-col a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.95rem;
}

.footer-col a:hover {
  color: var(--color-text);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.donation-note {
  margin-top: var(--spacing-xs);
  color: var(--color-accent);
  font-weight: 500;
  animation: subtlePulse 3s ease-in-out infinite;
}

.donate-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}

.donate-link:hover {
  color: var(--color-gradient-end);
  text-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

/* ===================================
   Crypto Donation Modal
   =================================== */

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg);
  border-radius: 16px;
  max-width: 600px;
  width: 90%;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
  animation: slideUp 0.3s ease;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 25px;
  font-size: 2rem;
  font-weight: bold;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}

.modal-close:hover {
  color: var(--color-text);
  transform: scale(1.1);
}

.modal-content h2 {
  margin-bottom: var(--spacing-xs);
  font-size: 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.crypto-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.crypto-card {
  background: var(--color-bg);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border: 2px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.crypto-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.crypto-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
}

.crypto-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.crypto-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.wallet-details {
  margin-top: var(--spacing-md);
}

.wallet-details.hidden {
  display: none;
}

.wallet-header {
  margin-bottom: var(--spacing-md);
}

.back-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-text);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.95rem;
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-accent);
}

.qr-code {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  text-align: center;
  margin: 0 auto var(--spacing-md);
  max-width: 300px;
}

.qr-code canvas {
  max-width: 100%;
  height: auto;
}

.wallet-address {
  text-align: center;
}

.address-label {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
  font-size: 0.9rem;
}

.address-container {
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-sm);
}

.address-container code {
  background: var(--color-bg);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  color: var(--color-accent);
  font-size: 0.85rem;
  word-break: break-all;
  max-width: 400px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.copy-btn {
  background: var(--color-accent);
  color: var(--color-text);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
}

.copy-btn.copied {
  background: #10b981;
}

.network-warning {
  color: #f59e0b;
  font-size: 0.85rem;
  margin-top: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(245, 158, 11, 0.1);
  border-radius: var(--border-radius);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes subtlePulse {
  0%, 100% {
    opacity: 0.8;
  }
  50% {
    opacity: 1;
  }
}

/* ===================================
   Animations
   =================================== */

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

@keyframes float {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-10px);
  }
}

@keyframes visualize {
  0%, 100% {
    transform: scaleY(0.5);
  }
  50% {
    transform: scaleY(1);
  }
}

@keyframes floatNote {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.3;
  }
  50% {
    transform: translateY(-30px) rotate(10deg);
    opacity: 0.6;
  }
  100% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.3;
  }
}

@keyframes bgPulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes gradientShift {
  0%, 100% {
    filter: hue-rotate(0deg);
  }
  50% {
    filter: hue-rotate(10deg);
  }
}

@keyframes waveMove {
  0%, 100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(20px);
  }
}

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

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

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

  .hero {
    min-height: 90vh;
    padding-top: 60px;
  }

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

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

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

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

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

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .audio-visualizer {
    display: none;
  }

  .floating-notes {
    display: none;
  }

  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }
}