/* Brand Colors */
:root {
  --bg-dark: #151619;
  --text-white: #ffffff;
  --btn-primary: #53FFC9;
  --btn-hover: #45E6B3;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-white);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--bg-dark);
  padding: 1.5rem 0;
  animation: slideDown 0.6s ease-out;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 40px;
  width: auto;
  animation: fadeIn 0.8s ease-out;
}

/* Buttons */
.btn-download,
.btn-download-large {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--btn-primary);
  color: #151619;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.625rem 1.5rem;
  border-radius: 50px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

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

.btn-download::before,
.btn-download-large::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-download:hover,
.btn-download-large:hover {
  background-color: var(--btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(83, 255, 201, 0.3);
}

.btn-download:hover::before,
.btn-download-large:hover::before {
  width: 300px;
  height: 300px;
}

.btn-download:active,
.btn-download-large:active {
  transform: translateY(0);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  text-align: center;
  z-index: 10;
  position: relative;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, var(--btn-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: slideUp 0.8s ease-out 0.2s both;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.6;
  margin-bottom: 2.5rem;
  opacity: 0.9;
  animation: slideUp 0.8s ease-out 0.4s both;
}

.btn-download-large {
  animation: scaleIn 0.8s ease-out 0.6s both, pulse 2s ease-in-out 2s infinite;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* Features */
.features {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 4rem;
  animation: slideUp 0.8s ease-out 0.8s both;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.feature-icon {
  font-size: 3rem;
  animation: float 3s ease-in-out infinite;
}

.feature-item:nth-child(2) .feature-icon {
  animation-delay: 0.5s;
}

.feature-item:nth-child(3) .feature-icon {
  animation-delay: 1s;
}

.feature-item p {
  font-size: 1rem;
  font-weight: 500;
  opacity: 0.8;
}

/* Background Decorations */
.background-decoration {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
  animation: glowPulse 4s ease-in-out infinite;
}

.glow-1 {
  width: 400px;
  height: 400px;
  background: var(--btn-primary);
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.glow-2 {
  width: 300px;
  height: 300px;
  background: var(--btn-primary);
  bottom: 20%;
  right: 15%;
  animation-delay: 1.5s;
}

  .glow-3 {
    width: 250px;
    height: 250px;
    background: var(--btn-primary);
    top: 50%;
    right: 25%;
    animation-delay: 3s;
  }

/* Features Showcase Section */
.features-showcase {
  position: relative;
  padding: 8rem 2rem;
  background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(21, 22, 25, 0.98) 50%, var(--bg-dark) 100%);
  overflow: hidden;
  z-index: 1;
}

.features-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(83, 255, 201, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(83, 255, 201, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.features-showcase-content {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.features-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  text-align: center;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 0%, var(--btn-primary) 50%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: slideUp 0.8s ease-out both, gradientShift 3s ease-in-out infinite;
  letter-spacing: -0.02em;
}

.features-subtitle {
  text-align: center;
  font-size: clamp(1.125rem, 2.2vw, 1.375rem);
  opacity: 0.85;
  margin-bottom: 5rem;
  color: rgba(255, 255, 255, 0.8);
  animation: slideUp 0.8s ease-out 0.2s both;
  font-weight: 400;
  line-height: 1.6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 3rem;
  margin-top: 4rem;
}

.feature-card {
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(83, 255, 201, 0.12);
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(40px);
  opacity: 0;
  animation: fadeUp 1s ease-out forwards;
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(83, 255, 201, 0.05) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: 1;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:nth-child(1) {
  animation-delay: 0.2s;
}

.feature-card:nth-child(2) {
  animation-delay: 0.4s;
}

.feature-card:nth-child(3) {
  animation-delay: 0.6s;
}

.feature-card:hover {
  transform: translateY(-12px) scale(1.02);
  border-color: rgba(83, 255, 201, 0.4);
  box-shadow: 
    0 25px 80px rgba(83, 255, 201, 0.2),
    0 0 0 1px rgba(83, 255, 201, 0.1);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.03) 100%);
}

.feature-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 20/18;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(83, 255, 201, 0.08), rgba(83, 255, 201, 0.03));
  z-index: 2;
}

.feature-image-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(21, 22, 25, 0.3) 100%);
  pointer-events: none;
  z-index: 1;
}

.feature-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  transform: scale(1.05);
  filter: brightness(0.95) contrast(1.05);
}

.feature-card:hover .feature-image-wrapper img {
  transform: scale(1.12);
  filter: brightness(1) contrast(1.1);
}

.feature-text {
  padding: 2.5rem;
  position: relative;
  z-index: 2;
  background: linear-gradient(180deg, transparent 0%, rgba(21, 22, 25, 0.4) 100%);
}

.feature-text h3 {
  font-size: clamp(1.5rem, 2.5vw, 1.875rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 0%, var(--btn-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.01em;
  transition: all 0.3s ease;
}

.feature-card:hover .feature-text h3 {
  background: linear-gradient(135deg, var(--btn-primary) 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-text p {
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
  font-weight: 400;
}

@keyframes fadeUp {
  from {
    transform: translateY(40px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Footer Styles */
.footer {
  background-color: var(--bg-dark);
  border-top: 1px solid rgba(83, 255, 201, 0.1);
  padding: 3rem 2rem;
  position: relative;
  z-index: 10;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  color: var(--text-white);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.3s ease;
  opacity: 0.8;
}

.footer-link:hover {
  color: var(--btn-primary);
  opacity: 1;
}

.divider {
  color: rgba(255, 255, 255, 0.3);
  font-size: 1.2rem;
}

.copyright {
  font-size: 0.875rem;
  opacity: 0.6;
  text-align: center;
}

.social-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(83, 255, 201, 0.1);
  color: var(--text-white);
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-link:hover {
  background-color: var(--btn-primary);
  color: var(--bg-dark);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(83, 255, 201, 0.3);
}

.social-link svg {
  transition: transform 0.3s ease;
}

.social-link:hover svg {
  transform: scale(1.1);
}

/* Animations */
@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(40px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

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

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes glowPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.15;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.25;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    padding: 0 1.5rem;
  }

  .logo {
    height: 32px;
  }

  .btn-download {
    font-size: 0.75rem;
    padding: 0.5rem 1.25rem;
  }

  .hero {
    padding: 6rem 1.5rem 3rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .features {
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
  }

  .features-showcase {
    padding: 5rem 1.5rem;
  }

  .features-showcase::before {
    background: 
      radial-gradient(circle at 50% 30%, rgba(83, 255, 201, 0.06) 0%, transparent 50%);
  }

  .features-title {
    margin-bottom: 1rem;
  }

  .features-subtitle {
    margin-bottom: 3rem;
    font-size: 1rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    margin-top: 2rem;
  }

  .feature-card {
    animation-delay: 0s !important;
    border-radius: 20px;
  }

  .feature-image-wrapper {
    aspect-ratio: 16/9;
  }

  .feature-text {
    padding: 2rem;
  }

  .feature-text h3 {
    font-size: 1.5rem;
    margin-bottom: 0.875rem;
  }

  .feature-text p {
    font-size: 1rem;
  }

  .glow-1,
  .glow-2,
  .glow-3 {
    width: 200px;
    height: 200px;
  }

  .footer {
    padding: 2rem 1.5rem;
  }

  .footer-content {
    gap: 1.25rem;
  }

  .footer-links {
    gap: 0.75rem;
    font-size: 0.8125rem;
  }

  .copyright {
    font-size: 0.75rem;
  }

  .social-links {
    gap: 1rem;
  }

  .social-link {
    width: 36px;
    height: 36px;
  }

  .social-link svg {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 480px) {
  .btn-download {
    padding: 0.5rem 1rem;
  }

  .btn-download-large {
    font-size: 1rem;
    padding: 0.875rem 2rem;
  }

  .features-showcase {
    padding: 4rem 1rem;
  }

  .features-title {
    font-size: 2rem;
    margin-bottom: 0.875rem;
  }

  .features-subtitle {
    font-size: 0.9375rem;
    margin-bottom: 2.5rem;
    line-height: 1.5;
  }

  .features-grid {
    gap: 2rem;
  }

  .feature-card {
    border-radius: 18px;
  }

  .feature-image-wrapper {
    aspect-ratio: 16/10;
  }

  .feature-text {
    padding: 1.75rem;
  }

  .feature-text h3 {
    font-size: 1.375rem;
  }

  .feature-text p {
    font-size: 0.9375rem;
    line-height: 1.6;
  }
}