:root {
  --primary: #00ccff;
  --secondary: #9d4dff;
  --success: #00ffaa;
  --warning: #ffcc00;
  --danger: #ff3b3b;
  --text-main: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.6);
  --glass-bg: rgba(20, 20, 25, 0.5);
  --glass-border: rgba(255, 255, 255, 0.15);
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  background: #050505;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
}

#bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
}

.register-wrapper {
  width: 100%;
  max-width: 480px;
  padding: 20px;
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 40px 36px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: translateY(30px);
  animation: cardEntry 0.8s var(--ease) forwards;
}

.card-header {
  text-align: center;
  margin-bottom: 36px;
}

.app-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff 0%, #a0c4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.app-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 600;
}

.register-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.input-group {
  position: relative;
  width: 100%;
}

.input-group input {
  width: 100%;
  padding: 10px 0 10px 32px;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 15px;
  border-radius: 0;
  transition: all 0.3s;
}

.input-group input:focus {
  outline: none;
  border-color: transparent;
}

.input-group label {
  position: absolute;
  left: 32px;
  top: 10px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 14px;
  pointer-events: none;
  transition: all 0.3s var(--ease);
}

.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label {
  top: -14px;
  left: 0;
  font-size: 11px;
  color: var(--primary);
}

.input-icon {
  position: absolute;
  left: 0;
  top: 12px;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.3);
  transition: color 0.3s;
}

.input-group input:focus ~ .input-icon {
  color: var(--primary);
}

.input-line {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  transition: width 0.4s var(--ease);
  transform: translateX(-50%);
}

.input-group input:focus ~ .input-line {
  width: 100%;
}

.strength-bar {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: transparent;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.3s;
}

.input-group input:focus ~ .strength-bar {
  opacity: 1;
}

.bar-fill {
  height: 100%;
  width: 0;
  transition: width 0.3s, background 0.3s;
}

.captcha-row {
  display: flex;
  align-items: flex-end;
  gap: 16px;
}

.captcha-input {
  flex: 1;
}

.captcha-img-wrap {
  width: 100px;
  height: 40px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: border-color 0.3s;
}

.captcha-img-wrap:hover {
  border-color: var(--primary);
}

.captcha-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.error-msg {
  font-size: 13px;
  color: var(--danger);
  text-align: center;
  min-height: 20px;
  opacity: 0;
  transform: translateY(-5px);
  transition: all 0.3s;
}

.error-msg.show {
  opacity: 1;
  transform: translateY(0);
}

.submit-btn {
  position: relative;
  width: 100%;
  padding: 16px;
  background: #fff;
  color: #000;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.2s;
}

.submit-btn:hover {
  transform: scale(1.02);
}

.submit-btn:active {
  transform: scale(0.98);
}

.btn-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, transparent 60%);
  transform: scale(0);
  transition: transform 0.5s;
  pointer-events: none;
}

.submit-btn:hover .btn-glow {
  transform: scale(1);
}

.loading-spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(0,0,0,0.1);
  border-left-color: #000;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

.submit-btn.loading .btn-text { display: none; }
.submit-btn.loading .btn-glow { display: none; }
.submit-btn.loading .loading-spinner { display: block; }

.card-footer-links {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 10px;
}

.login-link {
  color: var(--primary);
  font-weight: 600;
  margin-left: 6px;
  text-decoration: none;
  transition: color 0.2s;
}

.login-link:hover {
  color: #fff;
}

.simple-footer {
  text-align: center;
}

.copyright-text {
  font-size: 13px;
  font-weight: 600;
  background: linear-gradient(90deg, #555, #fff, #555);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 4s linear infinite;
}

.success-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s;
  backdrop-filter: blur(10px);
}

.success-overlay.active {
  opacity: 1;
  visibility: visible;
}

.success-content {
  text-align: center;
  transform: scale(0.8);
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.success-overlay.active .success-content {
  transform: scale(1);
}

.success-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--success);
  color: #000;
  font-size: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 0 40px var(--success);
}

.success-content h2 {
  font-size: 28px;
  margin-bottom: 12px;
  color: #fff;
}

.success-content p {
  color: var(--text-muted);
}

@keyframes cardEntry {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shine {
  to { background-position: 200% center; }
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; gap: 24px; }
  .glass-card { padding: 32px 24px; }
}