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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
  color: #ffffff;
  overflow-x: hidden;
  min-height: 100vh;
}

.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: 
    radial-gradient(circle at 20% 50%, rgba(225, 48, 108, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(129, 52, 175, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(253, 29, 29, 0.1) 0%, transparent 50%);
  animation: backgroundMove 20s ease-in-out infinite;
}

@keyframes backgroundMove {
  0%, 100% { transform: translateX(0px) translateY(0px); }
  33% { transform: translateX(-20px) translateY(-20px); }
  66% { transform: translateX(20px) translateY(-10px); }
}

.header {
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid rgba(225, 48, 108, 0.3);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(45deg, #E1306C, #8134AF, #FD1D1D, #F77737);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(225, 48, 108, 0.3);
  margin-bottom: 10px;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 600;
  background: linear-gradient(45deg, #E1306C, #8134AF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.back-btn {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 10px 20px;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  font-weight: 600;
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-50%) translateX(-3px);
}

.container {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 20px;
}

.feedback-intro {
  text-align: center;
  margin-bottom: 40px;
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.intro-title {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 15px;
  background: linear-gradient(45deg, #E1306C, #8134AF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.intro-text {
  font-size: 1.1rem;
  color: #888;
  line-height: 1.6;
  max-width: 500px;
  margin: 0 auto;
}

.feedback-form {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out 0.2s both;
}

.form-group {
  margin-bottom: 25px;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: #ffffff;
  font-size: 1rem;
}

.required {
  color: #ff4d4d;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 15px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  color: white;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: rgba(225, 48, 108, 0.5);
  box-shadow: 0 0 15px rgba(225, 48, 108, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #888;
}

.form-select option {
  background: #1a1a1a;
  color: white;
}

.rating-container {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.star-rating {
  display: flex;
  gap: 5px;
}

.star {
  font-size: 2rem;
  color: #444;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.star:hover,
.star.active {
  color: #FFD700;
  transform: scale(1.1);
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.rating-text {
  font-size: 1rem;
  color: #888;
  margin-left: 15px;
}

.submit-btn {
  background: linear-gradient(45deg, #E1306C, #8134AF);
  border: none;
  color: white;
  padding: 15px 40px;
  border-radius: 30px;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(225, 48, 108, 0.4);
  width: 100%;
  margin-top: 20px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.submit-btn:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(225, 48, 108, 0.6);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.submit-btn:active {
  transform: translateY(-1px);
}

.loading-spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: 10px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.success-message {
  background: rgba(40, 167, 69, 0.1);
  border: 2px solid #28a745;
  border-radius: 15px;
  padding: 25px;
  text-align: center;
  color: #28a745;
  font-weight: 600;
  display: none;
  animation: slideInUp 0.5s ease-out;
  margin-top: 20px;
}

.error-message {
  background: rgba(255, 77, 77, 0.1);
  border: 2px solid #ff4d4d;
  border-radius: 15px;
  padding: 20px;
  text-align: center;
  color: #ff4d4d;
  font-weight: 600;
  display: none;
  animation: slideInUp 0.5s ease-out;
  margin-top: 20px;
}

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

.form-note {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(225, 48, 108, 0.2);
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 30px;
  font-size: 0.9rem;
  color: #888;
  text-align: center;
}