:root {
  --primary: #a855f7;
  --primary-glow: #c084fc;
  --accent: #39ff88;
  --bg-deep: #0a0a14;
  --bg-gradient: radial-gradient(circle at 20% 0%, #2a1245 0%, #0a0a14 45%),
                 radial-gradient(circle at 80% 100%, #052e1a 0%, #0a0a14 50%);
  --card-bg: rgba(20, 16, 32, 0.75);
  --text: #f5f3ff;
  --text-muted: #a29bc2;
  --border: rgba(168, 85, 247, 0.25);
  --error: #ff4d6d;
  --success: #39ff88;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-gradient);
  background-color: var(--bg-deep);
  position: relative;
  overflow-x: hidden;
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 1400px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  justify-items: center;
  gap: 28px;
  margin: 0 auto;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.55),
    0 0 60px rgba(168, 85, 247, 0.12);
  max-width: 420px;
  width: 100%;
  overflow: hidden;
  text-align: center;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 30px 60px rgba(0, 0, 0, 0.6),
    0 0 80px rgba(168, 85, 247, 0.22);
}

.card-image {
  position: relative;
  width: 100%;
  height: 230px;
  overflow: hidden;
  background: #000;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.card:hover .card-image img {
  transform: scale(1.06);
}

.card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 10, 20, 0) 55%, var(--card-bg) 100%);
  pointer-events: none;
}

.card-content {
  padding: 24px 26px 30px;
  position: relative;
}

.badge {
  display: inline-block;
  background: rgba(168, 85, 247, 0.15);
  color: var(--primary-glow);
  border: 1px solid rgba(168, 85, 247, 0.4);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
  text-transform: uppercase;
  box-shadow: 0 0 16px rgba(168, 85, 247, 0.25);
}

h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text);
  letter-spacing: -0.02em;
}

p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 24px;
}

.input-group {
  margin-bottom: 16px;
}

input[type="text"] {
  width: 100%;
  padding: 14px 16px;
  background: rgba(10, 10, 20, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 1rem;
  outline: none;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

input[type="text"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.15);
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  color: #ffffff;
  padding: 15px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.25s ease, filter 0.2s ease;
  box-shadow: 0 8px 24px rgba(168, 85, 247, 0.45);
}

.btn-download:hover {
  filter: brightness(1.1);
  box-shadow: 0 10px 30px rgba(168, 85, 247, 0.6);
}

.btn-download:active {
  transform: scale(0.97);
}

.btn-download:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  filter: none;
}

.error-message {
  margin-top: 16px;
  font-size: 0.88rem;
  font-weight: 600;
  min-height: 20px;
  color: var(--error);
}

.container {
  position: relative;
  z-index: 1;
}

h1 {
  animation: neonFlicker 2.5s infinite alternate;
}

@keyframes neonFlicker {
  0%, 18%, 22%, 25%, 53%, 57%, 100% {
    text-shadow:
      0 0 4px var(--primary-glow),
      0 0 11px var(--primary-glow),
      0 0 19px var(--primary-glow),
      0 0 40px var(--primary),
      0 0 80px var(--primary);
    color: #ffffff;
  }
  20%, 24%, 55% {
    text-shadow: none;
    color: #d8c8f0;
  }
}