/* --- Google Font --- */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  --primary-color: #ffffff;
  --text-color: #e0e0e0;
  --text-dark: #a0a0a0;
  --bg-color: #0c0c0c;
  --card-bg: rgba(26, 26, 26, 0.5);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: rgba(0, 0, 0, 0.25);
  --glow-color: rgba(255, 255, 255, 0.05);

  --font-sans: "Inter", sans-serif;

  --accent-blue: #0ea5e9;
  --accent-pink: #db2777;
  --accent-purple: #c026d3;
  --accent-red: #e11d48;
  --accent-green: #16a34a;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}


.aurora-bg {
  position: relative;
  overflow: hidden;
}

.aurora-bg::before {
  content: "";
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  z-index: -2;
  background-image: conic-gradient(
    from 90deg at 50% 50%,
    rgba(14, 165, 233, 0.15) 0%,
    rgba(219, 39, 119, 0.15) 19.79%,
    rgba(192, 38, 211, 0.15) 39.06%,
    rgba(225, 29, 72, 0.15) 59.9%,
    rgba(22, 163, 74, 0.15) 80.21%,
    rgba(14, 165, 233, 0.15) 100%
  );
  animation: rotateBackground 20s linear infinite;
}

.aurora-bg::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-color: var(--bg-color);
  backdrop-filter: blur(100px);
  -webkit-backdrop-filter: blur(100px);
}

@keyframes rotateBackground {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.container {
  width: 90%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent-blue);
}

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

.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px 0 var(--glass-shadow);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.glowing-border {
  position: relative;
}
.glowing-border::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: conic-gradient(
    from var(--angle),
    transparent 20%,
    var(--accent-blue),
    var(--accent-pink),
    transparent 80%
  );
  z-index: -1;
  border-radius: 14px;
  filter: blur(15px);
  opacity: 0.6;
  animation: glow-rotate 6s linear infinite;
  --angle: 0deg;
}

@property --angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

@keyframes glow-rotate {
  to {
    --angle: 360deg;
  }
}

.main-header {
  padding: 2rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  gap: 0.5rem;
}

.logo svg {
  width: 28px;
  height: 28px;
  color: var(--accent-blue);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-dark);
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-blue);
  transition: width 0.3s ease;
}

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

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

.nav-button {
  background-color: var(--primary-color);
  color: var(--bg-color);
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.nav-button:hover {
  background-color: var(--accent-blue);
  color: var(--primary-color);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.5);
}

.section {
  padding: 4rem 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
}

.section-header a {
  font-weight: 600;
  color: var(--text-dark);
}

.section-header a:hover {
  color: var(--accent-blue);
}

.premium-hero-section {
  text-align: center;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.premium-hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 1rem;
}

.premium-hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-dark);
  max-width: 500px;
  margin: 0 auto 3rem auto;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pricing-card {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card.popular {
  transform: scale(1.05);
  border-color: var(--accent-purple);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.pricing-card.popular::before {
  background: conic-gradient(
    from var(--angle),
    transparent 20%,
    var(--accent-purple),
    var(--accent-pink),
    transparent 80%
  );
}

.pricing-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.pricing-card .tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  background-color: var(--accent-blue);
  color: var(--primary-color);
}

.pricing-card.popular .tag {
  background-color: var(--accent-purple);
}

.pricing-card h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing-card .price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}
.pricing-card .price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dark);
}

.pricing-card .description {
  color: var(--text-dark);
  margin-bottom: 2rem;
}

.pricing-card .features {
  list-style: none;
  margin-bottom: 2rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pricing-card .features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pricing-card .features li::before {
  content: "✔";
  color: var(--accent-green);
  font-weight: 700;
}

.pricing-card .cta-button {
  background-color: var(--primary-color);
  color: var(--bg-color);
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: auto; 
  width: 100%;
}

.pricing-card .cta-button:hover {
  background-color: var(--accent-blue);
  color: var(--primary-color);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.5);
}

.pricing-card.popular .cta-button {
  background-color: var(--accent-purple);
  color: var(--primary-color);
}
.pricing-card.popular .cta-button:hover {
  background-color: var(--accent-pink);
  box-shadow: 0 0 20px rgba(192, 38, 211, 0.5);
}

/* --- Footer --- */
.main-footer {
  padding: 3rem 0;
  margin-top: 4rem;
  border-top: 1px solid var(--glass-border);
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-content p {
  color: var(--text-dark);
}

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

.social-links a {
  color: var(--text-dark);
}

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

.social-links svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* --- Animation --- */
.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out forwards;
  opacity: 0;
}

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

.delay-100ms {
  animation-delay: 0.1s;
}
.delay-200ms {
  animation-delay: 0.2s;
}
.delay-300ms {
  animation-delay: 0.3s;
}
.delay-400ms {
  animation-delay: 0.4s;
}
.delay-500ms {
  animation-delay: 0.5s;
}
.delay-600ms {
  animation-delay: 0.6s;
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
  .main-nav {
    flex-direction: column;
    gap: 1.5rem;
  }

  .nav-links {
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .premium-hero-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

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

  .premium-hero-subtitle {
    font-size: 1rem;
  }

  .pricing-card {
    padding: 1.5rem;
  }

  .pricing-card .price {
    font-size: 2.5rem;
  }
}