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

:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --secondary: #10b981;
  --accent: #f59e0b;
  --dark: #0f172a;
  --dark-lighter: #1e293b;
  --dark-card: #1e293b;
  --white: #ffffff;
  --light-gray: #f1f5f9;
  --text-gray: #64748b;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --border: #334155;
}

body {
  font-family: "Inter", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--dark);
  color: var(--white);
  min-height: 100vh;
  padding-top: 100px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  padding: 1.5rem 0;
  z-index: 1000;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 60px;
  width: auto;
  border-radius: 50%;
  transition:
    transform 0.3s ease,
    filter 0.3s ease;
  filter: drop-shadow(0 0 10px rgba(37, 99, 235, 0.5));
}

.logo:hover {
  transform: scale(1.05) rotate(5deg);
  filter: drop-shadow(0 0 20px rgba(37, 99, 235, 0.8));
}

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

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.cta-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.cta-btn::after {
  display: none;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Page Header */
.page-header {
  text-align: center;
  margin-bottom: 3rem;
  animation: fadeInUp 0.6s ease;
}

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

.page-header h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-gray);
  font-size: 1.2rem;
}

/* Login Prompt */
.login-prompt {
  background: var(--dark-card);
  padding: 2rem;
  border-radius: 16px;
  text-align: center;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
}

.login-prompt a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.login-prompt a:hover {
  text-decoration: underline;
}

/* Review Form */
.review-form-container {
  background: var(--dark-card);
  padding: 2.5rem;
  border-radius: 20px;
  margin-bottom: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  animation: fadeInUp 0.6s ease 0.2s both;
}

.review-form-container h2 {
  margin-bottom: 1.5rem;
  color: var(--white);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--white);
}

.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  transition: all 0.3s ease;
  font-family: inherit;
  background: var(--dark);
  color: var(--white);
  resize: vertical;
}

.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Star Rating */
.star-rating {
  display: flex;
  flex-direction: row-reverse;
  justify-content: flex-end;
  gap: 0.5rem;
  font-size: 2.5rem;
}

.star-rating input[type="radio"] {
  display: none;
}

.star-rating label {
  color: var(--border);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 0;
}

.star-rating label:hover,
.star-rating label:hover ~ label,
.star-rating input[type="radio"]:checked ~ label {
  color: var(--warning);
  transform: scale(1.1);
}

/* Button */
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 1rem;
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(37, 99, 235, 0.6);
}

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

/* Reviews Section */
.reviews-section {
  animation: fadeInUp 0.6s ease 0.4s both;
}

.reviews-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.reviews-header h2 {
  color: var(--white);
  font-size: 2rem;
}

.average-rating {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--dark-card);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.average-rating .stars {
  font-size: 1.5rem;
  color: var(--warning);
}

.average-rating .rating-text {
  color: var(--text-gray);
  font-weight: 600;
}

/* Reviews List */
.reviews-list {
  display: grid;
  gap: 1.5rem;
}

.review-card {
  background: var(--dark-card);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  animation: fadeIn 0.4s ease;
}

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

.review-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  border-color: var(--primary);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 1rem;
  gap: 1rem;
}

.review-author {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.author-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--white);
}

.review-date {
  font-size: 0.875rem;
  color: var(--text-gray);
}

.review-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.review-stars {
  font-size: 1.2rem;
  color: var(--warning);
}

.review-text {
  color: var(--light-gray);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.review-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.btn-delete {
  background: var(--danger);
  color: white;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-delete:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.5);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-gray);
}

.empty-state h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--white);
}

/* Loading */
.loading-spinner {
  text-align: center;
  padding: 3rem;
  color: var(--text-gray);
  font-size: 1.1rem;
}

/* Messages */
.message {
  padding: 1rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  animation: slideIn 0.3s ease;
  border: 1px solid;
  font-weight: 500;
}

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

.message-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border-color: var(--success);
}

.message-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border-color: var(--danger);
}

/* Footer */
.footer {
  background: var(--dark-card);
  color: var(--white);
  padding: 3rem 2rem 1rem;
  text-align: center;
  margin-top: 4rem;
  border-top: 1px solid var(--border);
}

.footer p {
  opacity: 0.7;
}

/* Utilities */
.hidden {
  display: none !important;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--white);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  body {
    padding-top: 80px;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .reviews-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .review-header {
    flex-direction: column;
  }

  .star-rating {
    font-size: 2rem;
  }
}