:root {
  --bg-color: #121418;
  --surface-color: #1b1f27;
  --surface-hover: #222630;
  --primary-accent: #9d8ec4;
  --secondary-accent: #7aa2f7;
  --text-main: #e8e8e8;
  --text-muted: #a0a6b5;
  --border-color: rgba(255, 255, 255, 0.08);
  --success-color: #7dd3fc;
  --danger-color: #f87171;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --container-width: 1100px;
}

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

body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary-accent);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  position: relative;
}

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

h1,
h2,
h3 {
  color: #fff;
  font-weight: 700;
  letter-spacing: -0.02em;
}

header {
  background: rgba(18, 20, 24, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

.header-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.header-container h1 {
  font-size: 2rem;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #fff 0%, var(--primary-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav {
  display: flex;
  gap: 25px;
}

.nav-link {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

.container {
  max-width: var(--container-width);
  margin: 40px auto;
  padding: 0 20px;
  flex-grow: 1;
}

.intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.about-me,
.how-it-works,
.testimonials,
.useful-links-box {
  background: var(--surface-color);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  margin-bottom: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.about-me:hover,
.how-it-works:hover,
.testimonials:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.section-title,
h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--primary-accent);
  display: flex;
  align-items: center;
  gap: 10px;
}

.note {
  background: rgba(157, 142, 196, 0.1);
  color: #dcd6f7;
  padding: 15px 20px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary-accent);
  margin-top: 15px;
  font-size: 0.95rem;
}

.warning,
.notice {
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.2);
  color: #fca5a5;
  padding: 15px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.pricing-section {
  margin-bottom: 80px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.pricing-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 35px 25px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  overflow: hidden;
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.pricing-card h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 25px;
  letter-spacing: -1px;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.pricing-card ul li {
  margin-bottom: 12px;
  color: var(--text-muted);
  padding-left: 28px;
  position: relative;
  font-size: 0.95rem;
}

.pricing-card ul li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--secondary-accent);
  font-weight: bold;
}

.pricing-card.ultimate {
  background: linear-gradient(
    180deg,
    rgba(56, 189, 248, 0.1) 0%,
    var(--surface-color) 100%
  );
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.pricing-card.celestial {
  background: linear-gradient(
    180deg,
    rgba(157, 142, 196, 0.15) 0%,
    var(--surface-color) 100%
  );
  border: 1px solid rgba(157, 142, 196, 0.4);
  transform: scale(1.02);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.pricing-card.celestial:hover {
  transform: scale(1.02) translateY(-8px);
}

.btn {
  background: var(--text-main);
  color: var(--bg-color);
  border: none;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
  text-align: center;
  display: inline-block;
}

.btn:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.pricing-card.celestial .btn {
  background: var(--primary-accent);
  color: #fff;
}

.btn.submit {
  background: var(--secondary-accent);
  color: #fff;
  width: auto;
  box-shadow: 0 4px 15px rgba(122, 162, 247, 0.3);
}

.cancel-btn {
  background: transparent;
  color: var(--danger-color);
  border: 1px solid var(--danger-color);
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 20px;
  margin-left: 10px;
}

.cancel-btn:hover {
  background: var(--danger-color);
  color: #fff;
}

.form-container {
  background: var(--surface-color);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  max-width: 800px;
  margin: 0 auto;
}

form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #d1d5db;
  font-size: 0.95rem;
}

form input[type="text"],
form select,
form textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  margin-bottom: 20px;
  transition: all 0.2s ease;
}

form input:focus,
form select:focus,
form textarea:focus {
  outline: none;
  border-color: var(--secondary-accent);
  background: rgba(0, 0, 0, 0.3);
  box-shadow: 0 0 0 3px rgba(122, 162, 247, 0.1);
}

.upload-btn {
  background: var(--surface-hover);
  border: 1px dashed var(--text-muted);
  color: var(--text-muted);
  padding: 15px;
  width: 100%;
  text-align: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: block;
}

.upload-btn:hover {
  border-color: var(--primary-accent);
  color: var(--primary-accent);
  background: rgba(157, 142, 196, 0.05);
}

input[type="file"] {
  display: none;
}

.checkbox-wrapper {
  padding: 15px;
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

footer {
  margin-top: 80px;
  padding: 60px 0;
  border-top: 1px solid var(--border-color);
  background: var(--surface-color);
  text-align: center;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  list-style: none;
  margin-top: 20px;
}

.countdown {
  display: flex;
  justify-content: center;
  margin: 3rem 0;
}

#countdown-box {
  padding: 15px 30px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-family: monospace;
  font-size: 1.4rem;
  color: var(--secondary-accent);
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.overlay-content {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 500px;
  width: 90%;
}

.useful-links-box ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 15px;
}

.useful-links-box ul li a {
  background: rgba(255, 255, 255, 0.03);
  display: block;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.useful-links-box ul li a:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: translateX(5px);
}

.hidden {
  display: none !important;
}

@media (max-width: 768px) {
  .header-container h1 {
    font-size: 1.8rem;
  }
  .pricing-card.celestial {
    transform: scale(1);
  }
  .pricing-card.celestial:hover {
    transform: translateY(-8px);
  }
  nav {
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .section-title {
    font-size: 1.5rem;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}