/* ======================== 
   Flash Charge by BYD
   Single Page Stylesheet
======================== */

:root {
  --color-bg: #05070a;
  --color-bg-secondary: #0a0f17;
  --color-bg-card: rgba(15, 23, 36, 0.7);
  --color-primary: #00d4ff;
  --color-primary-dark: #0099ff;
  --color-secondary: #7c3aed;
  --color-accent: #f59e0b;
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-border: rgba(0, 212, 255, 0.15);
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Orbitron', sans-serif;
  --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: var(--font-primary);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ======================== Navigation ======================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  padding: 14px 0;
  background: rgba(5, 7, 10, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 1px;
}

.logo-icon {
  font-size: 1.6rem;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.6));
  animation: pulse 2s ease-in-out infinite;
}

.logo-text {
  color: var(--color-text);
}

.logo-text span {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

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

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

.nav-cta {
  padding: 10px 24px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-bg) !important;
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

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

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

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

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

/* ======================== Hero Section ======================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(ellipse at center, #0a1f33 0%, #05070a 70%);
}

#energyCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(124, 58, 237, 0.06) 0%, transparent 50%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 900px;
  padding: 120px 24px 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 50px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 30px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.7);
  animation: pulse-dot 2s infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-title .line {
  display: block;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-primary) 0%, #7c3aed 50%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradient-shift 4s linear infinite;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 70px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-bg);
  box-shadow: 0 4px 25px rgba(0, 212, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 35px rgba(0, 212, 255, 0.6);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--color-primary);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.stat-item {
  padding: 24px 16px;
  border-radius: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 10px 40px rgba(0, 212, 255, 0.15);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

.mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--color-text-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.wheel {
  width: 4px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 2px;
  animation: scroll-wheel 2s infinite;
}

/* ======================== Section Common ======================== */
section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 70px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 18px;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ======================== Charge Demo Section ======================== */
.charge-demo {
  background: var(--color-bg-secondary);
}

.charge-visualization {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 40px;
  border-radius: 30px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.charge-visualization::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 60%);
  animation: rotate 20s linear infinite;
}

.car-silhouette {
  position: relative;
  margin-bottom: 40px;
  z-index: 2;
}

.car-silhouette svg {
  width: 100%;
  height: auto;
  max-width: 600px;
  display: block;
  margin: 0 auto;
}

.car-body {
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: draw-car 3s ease forwards;
}

.wheel {
  opacity: 0;
  animation: fade-in 0.5s ease 2.5s forwards;
}

.charge-port {
  position: absolute;
  top: 50%;
  right: 18%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.8);
  animation: port-pulse 1.5s ease-in-out infinite;
}

.port-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  opacity: 0;
  animation: glow-ring 2s ease-out infinite;
}

.charging-cable {
  position: absolute;
  left: 10%;
  top: 50%;
  width: 45%;
  height: 4px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 2px;
  transform: translateY(-50%);
  overflow: hidden;
  z-index: 1;
}

.energy-flow {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  transform: translateX(-100%);
  animation: energy-flow 1.5s ease-in-out infinite;
}

.battery-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 30px;
  position: relative;
  z-index: 2;
}

.battery-outline {
  width: 300px;
  height: 60px;
  border: 3px solid var(--color-border);
  border-radius: 12px;
  padding: 4px;
  position: relative;
}

.battery-cap {
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 24px;
  background: var(--color-border);
  border-radius: 0 4px 4px 0;
}

.battery-fill {
  height: 100%;
  width: 0%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
  transition: width 0.1s linear;
}

.battery-info {
  text-align: left;
}

.battery-percent {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.battery-status {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.replay-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 auto;
  padding: 12px 24px;
  border-radius: 50px;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  z-index: 2;
}

.replay-btn:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--color-primary);
}

/* ======================== Comparison Section ======================== */
.comparison {
  background: var(--color-bg);
}

.comparison-chart {
  max-width: 900px;
  margin: 0 auto 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.chart-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  align-items: center;
  gap: 30px;
  padding: 24px;
  border-radius: 16px;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.chart-row:hover {
  border-color: var(--color-border);
  transform: translateX(5px);
}

.chart-row.flash {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
  border-color: var(--color-border);
}

.chart-label {
  display: flex;
  align-items: center;
  gap: 14px;
}

.chart-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.chart-label strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.chart-label span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.chart-bar {
  height: 36px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  width: 0;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 14px;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.chart-row.flash .bar-fill {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  box-shadow: 0 0 25px rgba(0, 212, 255, 0.5);
}

.bar-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
  white-space: nowrap;
}

.comparison-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.comp-card {
  padding: 32px;
  border-radius: 20px;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  transition: var(--transition);
}

.comp-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-border);
}

.comp-icon {
  font-size: 3rem;
  margin-bottom: 18px;
}

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

.comp-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ======================== Technology Section ======================== */
.technology {
  background: var(--color-bg-secondary);
  overflow: hidden;
}

.tech-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 30% 20%, rgba(0, 212, 255, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 70% 80%, rgba(124, 58, 237, 0.05) 0%, transparent 40%);
  pointer-events: none;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tech-card {
  padding: 40px 28px;
  border-radius: 24px;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.tech-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

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

.tech-card-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: rgba(0, 212, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.tech-card-icon svg {
  width: 32px;
  height: 32px;
}

.tech-card h3 {
  font-size: 1.2rem;
  margin-bottom: 14px;
  font-weight: 700;
}

.tech-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ======================== Experience Section ======================== */
.experience {
  background: var(--color-bg);
}

.experience-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.exp-card {
  border-radius: 24px;
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
  transition: var(--transition);
}

.exp-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-border);
}

.exp-card.large {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
}

.exp-image {
  height: 200px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.exp-card.large .exp-image {
  flex: 1;
  min-height: 280px;
}

.exp-icon {
  font-size: 4rem;
  opacity: 0.9;
}

.exp-content {
  padding: 28px;
}

.exp-content h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.exp-content p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.exp-stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.exp-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}

.exp-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ======================== CTA Section ======================== */
.cta-section {
  padding: 140px 0;
  background: var(--color-bg-secondary);
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 18px;
}

.cta-content p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.cta-form {
  margin-bottom: 50px;
}

.form-group {
  display: flex;
  gap: 12px;
  max-width: 520px;
  margin: 0 auto;
  padding: 6px;
  border-radius: 50px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

.form-group input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  background: transparent;
  color: var(--color-text);
  font-size: 1rem;
  outline: none;
  font-family: inherit;
}

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

.form-group .btn {
  padding: 14px 28px;
}

.form-note {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-top: 16px;
}

.cta-contacts {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

.contact-link span:first-child {
  color: var(--color-text);
  font-weight: 600;
}

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

/* ======================== Contact Card Form ======================== */
.contact-card {
  max-width: 600px;
  margin: 60px auto 0;
  padding: 40px;
  border-radius: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(20px);
  text-align: left;
}

.contact-card h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
}

.success-msg {
  display: none;
  padding: 14px 18px;
  margin-bottom: 20px;
  border-radius: 12px;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
  font-size: 0.95rem;
  text-align: center;
}

.success-msg.show {
  display: block;
  animation: fade-in 0.4s ease;
}

.contact-card table {
  width: 100% !important;
  border-collapse: collapse;
}

.contact-card tr {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.contact-card td {
  padding: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.contact-card td:first-child {
  text-align: left !important;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--color-text);
}

.contact-card .intxt,
.contact-card input[type="text"],
.contact-card textarea {
  width: 100% !important;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: rgba(5, 7, 10, 0.5);
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}

.contact-card .intxt:focus,
.contact-card input[type="text"]:focus,
.contact-card textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.contact-card textarea {
  min-height: 120px !important;
  resize: vertical;
  line-height: 1.6;
}

.contact-card div[align="center"] {
  display: flex;
  justify-content: center;
  gap: 16px;
  height: auto !important;
  padding-top: 10px;
}

.contact-card .coolbg,
.contact-card input[type="submit"],
.contact-card input[type="reset"] {
  padding: 14px 36px;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.contact-card input[type="submit"] {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-bg);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.contact-card input[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}

.contact-card input[type="reset"] {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.contact-card input[type="reset"]:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--color-primary);
}

@media (max-width: 768px) {
  .contact-card {
    padding: 28px 24px;
    margin-top: 50px;
  }
  
  .contact-card div[align="center"] {
    flex-direction: column;
  }
  
  .contact-card .coolbg,
  .contact-card input[type="submit"],
  .contact-card input[type="reset"] {
    width: 100%;
  }
}

/* ======================== Footer ======================== */
.footer {
  padding: 60px 0 30px;
  background: var(--color-bg);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.footer-bottom p {
  margin-bottom: 6px;
}

/* ======================== Animations ======================== */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(0, 212, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0); }
}

@keyframes gradient-shift {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

@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 scroll-wheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(12px); }
}

@keyframes draw-car {
  to { stroke-dashoffset: 0; }
}

@keyframes fade-in {
  to { opacity: 1; }
}

@keyframes port-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.6); }
  50% { box-shadow: 0 0 40px rgba(0, 212, 255, 1); }
}

@keyframes glow-ring {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

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

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Scroll Animation Base States */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade-up"] {
  opacity: 0;
  transform: translateY(30px);
}

[data-animate="fade-up"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ======================== Responsive ======================== */
@media (max-width: 992px) {
  .nav-links,
  .nav-cta {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 24px;
    right: 24px;
    padding: 30px;
    background: rgba(5, 7, 10, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    gap: 24px;
    z-index: 999;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  }
  
  .nav-links.mobile-open a {
    font-size: 1.1rem;
    text-align: center;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .experience-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .exp-card.large {
    grid-column: span 2;
    grid-row: span 1;
    flex-direction: row;
  }
  
  .exp-card.large .exp-image {
    min-height: auto;
    width: 50%;
  }
  
  .chart-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  
  .stat-item {
    padding: 18px 12px;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .comparison-cards {
    grid-template-columns: 1fr;
  }
  
  .tech-grid {
    grid-template-columns: 1fr;
  }
  
  .experience-grid {
    grid-template-columns: 1fr;
  }
  
  .exp-card.large {
    grid-column: span 1;
    flex-direction: column;
  }
  
  .exp-card.large .exp-image {
    width: 100%;
    min-height: 200px;
  }
  
  .form-group {
    flex-direction: column;
    border-radius: 20px;
  }
  
  .form-group .btn {
    width: 100%;
    justify-content: center;
  }
  
  .footer-top {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }
  
  .battery-display {
    flex-direction: column;
    gap: 16px;
  }
  
  .battery-outline {
    width: 100%;
    max-width: 300px;
  }
  
  .battery-info {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
  }
  
  .cta-contacts {
    flex-direction: column;
    gap: 20px;
  }
}