/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg-primary: #0b0d11;
  --color-bg-secondary: #101318;
  --color-bg-tertiary: #161920;
  --color-bg-card: #1a1d26;
  --color-accent: #4F8BFF;
  --color-accent-light: #6fa0ff;
  --color-accent-dark: #3a6fdb;
  --color-text-primary: #f0f2f5;
  --color-text-secondary: #9ca3af;
  --color-text-muted: #6b7280;
  --color-border: rgba(255, 255, 255, 0.07);
  --color-border-hover: rgba(79, 139, 255, 0.3);
  --color-success: #34d399;
  --color-star: #fbbf24;
  --font-sans: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 13, 17, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.accent {
  color: var(--color-accent);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-accent);
  border-color: var(--color-border-hover);
}

/* ===== HERO ===== */
.hero {
  padding: 80px 0 48px;
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-text-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.stars {
  color: var(--color-star);
  font-size: 1.2rem;
  letter-spacing: 2px;
}

/* ===== FILTERS ===== */
.filters-section {
  padding: 24px 0;
  position: sticky;
  top: 60px;
  z-index: 50;
  background: rgba(11, 13, 17, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.filters {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  gap: 6px;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--color-border-hover);
  color: var(--color-accent);
}

.filter-btn.active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.sort-select {
  padding: 8px 16px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  margin-left: auto;
  outline: none;
  transition: border-color var(--transition-fast);
}

.sort-select:hover, .sort-select:focus {
  border-color: var(--color-border-hover);
}

.filter-count {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ===== REVIEWS GRID ===== */
.reviews-section {
  padding: 40px 0 80px;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

/* ===== REVIEW CARD ===== */
.review-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: fadeInUp 0.4s ease both;
}

.review-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(79, 139, 255, 0.08);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.review-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text-primary);
}

.review-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.review-verified {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-success);
  font-size: 0.75rem;
  font-weight: 600;
}

.review-verified svg {
  width: 14px;
  height: 14px;
}

.review-stars {
  color: var(--color-star);
  font-size: 1rem;
  letter-spacing: 1px;
}

.review-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.review-text {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.review-city {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  background: var(--color-bg-tertiary);
  padding: 4px 10px;
  border-radius: 6px;
  width: fit-content;
}

.review-lang-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--color-bg-tertiary);
  color: var(--color-text-muted);
}

/* ===== LOAD MORE ===== */
.load-more-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.load-more-btn {
  padding: 14px 40px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
}

.load-more-btn:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.load-more-btn.hidden {
  display: none;
}

/* ===== WRITE REVIEW FORM ===== */
.write-review-section {
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.write-review-section h2 {
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 8px;
}

.form-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  font-size: 0.95rem;
}

.review-form {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  outline: none;
  transition: border-color var(--transition-fast);
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(79, 139, 255, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

.form-group select option {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.char-count {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: right;
}

.star-rating {
  display: flex;
  gap: 4px;
}

.star-btn {
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 2px;
  transition: color var(--transition-fast), transform var(--transition-fast);
  line-height: 1;
}

.star-btn:hover,
.star-btn.active {
  color: var(--color-star);
}

.star-btn:hover {
  transform: scale(1.15);
}

.form-actions {
  display: flex;
  justify-content: center;
  margin-top: 8px;
}

.submit-btn {
  padding: 14px 40px;
  border-radius: 100px;
  border: none;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(79, 139, 255, 0.2);
}

.submit-btn:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(79, 139, 255, 0.3);
}

.submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.form-message {
  text-align: center;
  padding: 14px 20px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-message.success {
  background: rgba(52, 211, 153, 0.12);
  color: var(--color-success);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.form-message.error {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.form-message.hidden {
  display: none;
}

.review-card.user-review {
  border-color: rgba(79, 139, 255, 0.25);
  background: linear-gradient(135deg, var(--color-bg-card) 0%, rgba(79, 139, 255, 0.04) 100%);
}

.user-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(79, 139, 255, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  border-top: 1px solid var(--color-border);
}

.cta-section h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-section p {
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.cta-button {
  display: inline-block;
  padding: 16px 40px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 100px;
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--transition-base);
  box-shadow: 0 4px 24px rgba(79, 139, 255, 0.25);
}

.cta-button:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(79, 139, 255, 0.35);
}

/* ===== FOOTER ===== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero {
    padding: 56px 0 32px;
  }

  .hero-stats {
    gap: 28px;
  }

  .stat-value {
    font-size: 2rem;
  }

  .filters-section {
    top: 56px;
  }

  .filters {
    gap: 8px;
  }

  .sort-select {
    margin-left: 0;
    width: 100%;
    margin-top: 4px;
  }

  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .review-card {
    padding: 18px;
  }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.6rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }
}