:root {
  --bg-color: #0d0e15;
  --text-primary: #ffffff;
  --text-secondary: #8b949e;
  --accent: #6f42c1;
  --accent-light: #8a63d2;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(111, 66, 193, 0.15), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(98, 144, 255, 0.15), transparent 25%);
  background-attachment: fixed;
}

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

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

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 5%;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  background: rgba(13, 14, 21, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff, #a5b4fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

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

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

.lang-switch {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.lang-switch:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

main {
  padding-top: 80px;
}

.hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem 5%;
  position: relative;
}

.hero-pill {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 0.5rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  display: inline-block;
  animation: fadeInDown 1s ease-out;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero h1 span {
  background: linear-gradient(135deg, #a5b4fc 0%, #6f42c1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.section-container {
  padding: 6rem 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 4rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(111, 66, 193, 0.2);
  border-color: rgba(255, 255, 255, 0.15);
}

.card-img {
  width: 100%;
  height: 200px;
  background-color: rgba(255,255,255,0.02);
  object-fit: cover;
  border-bottom: 1px solid var(--glass-border);
}

.card-content {
  padding: 2rem;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.tag {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  background: rgba(111, 66, 193, 0.1);
  color: #a5b4fc;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 1rem;
  border: 1px solid rgba(111, 66, 193, 0.2);
}

.support-section {
  text-align: center;
  padding: 6rem 5%;
  background: linear-gradient(to top, rgba(13, 14, 21, 1), rgba(13, 14, 21, 0));
  position: relative;
}

.support-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--glass-border);
  border-radius: 32px;
  padding: 4rem 2rem;
  max-width: 800px;
  margin: 0 auto;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.btn {
  display: inline-block;
  background: var(--text-primary);
  color: var(--bg-color);
  padding: 1rem 2rem;
  border-radius: 30px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  background: #e2e8f0;
  color: var(--bg-color);
}

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

.btn-outline:hover {
  background: var(--glass-bg);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

footer {
  border-top: 1px solid var(--glass-border);
  padding: 3rem 5%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

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

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

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

.support-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 500px;
  margin: 2rem auto;
  text-align: left;
}

.input-field {
  width: 100%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 1rem;
  border-radius: 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.input-field:focus {
  outline: none;
  border-color: var(--accent-light);
}

textarea.input-field {
  resize: vertical;
  min-height: 150px;
}