:root {
  --bg-color: #0f172a;
  --card-bg: rgba(30, 41, 59, 0.7);
  --accent-color: #38bdf8;
  --neon-glow: #00f2fe;
  --text-color: #f8fafc;
  --success-color: #22c55e;
  --border-color: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: radial-gradient(circle at top right, #1e293b, #0f172a);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  direction: rtl;
}

.container {
  width: 100%;
  max-width: 480px;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  text-align: center;
}

h1 {
  font-size: 1.4rem;
  color: var(--accent-color);
  margin-bottom: 24px;
  text-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
}

.input-group {
  margin-bottom: 20px;
  text-align: right;
}

label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: #94a3b8;
}

input {
  width: 100%;
  padding: 14px 16px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-color);
  font-size: 1rem;
  outline: none;
  transition: all 0.3s ease;
}

input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
}

.btn-group {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

button {
  flex: 1;
  padding: 14px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

button:active {
  transform: scale(0.97);
}

.btn-submit {
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
  color: #fff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-get-code {
  background: linear-gradient(135deg, #8b5cf6, #ec4899);
  color: #fff;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-content {
  background: #1e293b;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px;
  max-width: 400px;
  width: 100%;
  text-align: center;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
  position: relative;
}

.close-btn {
  position: absolute;
  top: 15px;
  left: 15px;
  font-size: 1.5rem;
  color: #94a3b8;
  cursor: pointer;
}

.code-display {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--neon-glow);
  text-shadow: 0 0 20px rgba(0, 242, 254, 0.8);
  margin: 20px 0;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  border: 1px dashed var(--accent-color);
  user-select: all;
}

.winner-title {
  font-size: 1.8rem;
  color: var(--success-color);
  margin-bottom: 15px;
  text-shadow: 0 0 15px rgba(34, 197, 94, 0.5);
}