/* Base styles */
html {
  font-size: 14px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(135deg, #f8fffe 0%, #f0f9f4 100%);
  color: #1c1c0d;
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
}

/* Layout Container */
.layout-container {
  position: relative;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background: linear-gradient(135deg, #f8fffe 0%, #f0f9f4 100%);
}

/* Header Styles */
.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  white-space: nowrap;
  border-bottom: 1px solid rgba(40, 167, 69, 0.1);
  padding: 0.75rem 2.5rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(40, 167, 69, 0.08);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: #1c1c0d;
}

.brand-icon-wrapper {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.brand-title {
  color: #1c1c0d;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color 0.2s ease;
}

.brand-title:hover {
  color: #28a745;
}

.header-flex {
  display: flex;
  flex: 1;
  justify-content: flex-end;
  gap: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-link {
  color: #1c1c0d;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: #28a745;
  text-decoration: none;
}

.auth-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.auth-buttons .btn {
  height: 2.25rem;
  min-width: auto;
  padding: 0 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 12px;
  white-space: nowrap;
}

.auth-buttons form {
  margin: 0;
  display: inline-flex;
}

/* Main Content */
.main-wrapper {
  padding: 0 10rem;
  display: flex;
  flex: 1;
  justify-content: center;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

.content-container {
  display: flex;
  flex-direction: column;
  width: 512px;
  max-width: 512px;
  padding: 1.25rem 0;
  flex: 1;
}

/* ============================================
   REUSABLE COMPONENTS
   ============================================ */

/* Page Layout Components */
.page-container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 3rem;
  min-height: calc(100vh - 200px);
}

.page-content-wrapper {
  width: 100%;
  text-align: center;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  box-shadow: 0 20px 60px rgba(40, 167, 69, 0.1);
  border: 1px solid rgba(40, 167, 69, 0.1);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.page-content-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #28a745 0%, #20c997 100%);
  border-radius: 24px 24px 0 0;
}

.page-content-wrapper--narrow {
  max-width: 420px;
}

.page-content-wrapper--medium {
  max-width: 520px;
}

.page-content-wrapper--wide {
  max-width: 720px;
}

/* Typography Components */
.page-title {
  color: #1c1c0d;
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin: 0 0 1rem 0;
  text-align: center;
  position: relative;
}

.page-title--medium {
  font-size: 1.5rem;
  margin-bottom: 2.5rem;
  color: #2d5016;
}

.page-subtitle {
  color: #6c757d;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  margin: 0 0 2.5rem 0;
}

.section-title {
  color: #1c1c0d;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem 0;
}

/* Button Components */
.btn {
  display: flex;
  min-width: 84px;
  max-width: 480px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 16px;
  height: 2.5rem;
  padding: 0 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.015em;
  border: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.2);
}

.btn--primary:hover {
  background: linear-gradient(135deg, #218838 0%, #1ea085 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(40, 167, 69, 0.3);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(40, 167, 69, 0.2);
}

.btn--secondary {
  background: rgba(248, 249, 250, 0.9);
  color: #495057;
  border: 2px solid rgba(40, 167, 69, 0.1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.btn--secondary:hover {
  background: rgba(40, 167, 69, 0.05);
  color: #28a745;
  border-color: rgba(40, 167, 69, 0.2);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.1);
}

.btn--large {
  height: 3rem;
  width: 100%;
  margin-top: 1rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 16px;
}

.btn--large:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(40, 167, 69, 0.25);
}

.btn--extra-large {
  height: 3.25rem;
  min-width: 200px;
  padding: 0 2rem;
  font-size: 1.1rem;
  border-radius: 18px;
}

.btn--extra-large:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(40, 167, 69, 0.3);
}

/* Form Components */
.form-container {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-bottom: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
  position: relative;
}

.form-group--checkbox {
  flex-direction: row;
  align-items: center;
  text-align: left;
  gap: 0.75rem;
  margin: 0.5rem 0;
}

.form-label {
  color: #2d5016;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  position: relative;
}

.form-input {
  width: 100%;
  height: 3rem;
  padding: 0 1.25rem;
  border: 2px solid rgba(40, 167, 69, 0.15);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  color: #1c1c0d;
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.4;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 10px rgba(40, 167, 69, 0.05);
}

.form-input:focus {
  outline: none;
  border-color: #28a745;
  box-shadow: 0 0 0 4px rgba(40, 167, 69, 0.1), 0 4px 20px rgba(40, 167, 69, 0.15);
  background: #ffffff;
  transform: translateY(-1px);
}

.form-input::placeholder {
  color: #8e9aaf;
  font-weight: 400;
}

.form-input:hover {
  border-color: rgba(40, 167, 69, 0.25);
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.08);
}

/* Custom Checkbox Styling */
.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid rgba(40, 167, 69, 0.3);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  margin: 0;
  flex-shrink: 0;
}

.form-check-input:checked {
  background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
  border-color: #28a745;
  box-shadow: 0 2px 10px rgba(40, 167, 69, 0.3);
}

.form-check-input:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
}

.form-check-input:hover {
  border-color: #28a745;
  box-shadow: 0 2px 10px rgba(40, 167, 69, 0.15);
  transform: scale(1.05);
}

.form-group--checkbox .form-label {
  margin-bottom: 0;
  cursor: pointer;
  font-size: 0.9rem;
  color: #495057;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.form-error {
  color: #dc3545;
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 0.5rem;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-error::before {
  content: '⚠';
  font-size: 0.9rem;
}

/* Enhanced Form Input States */
.form-input.is-invalid,
.form-input:invalid {
  border-color: #dc3545;
  box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.1), 0 2px 10px rgba(220, 53, 69, 0.15);
  background: rgba(248, 215, 218, 0.1);
  animation: shake 0.5s ease-in-out;
}

.form-input.is-valid,
.form-input:valid {
  border-color: #28a745;
  box-shadow: 0 0 0 4px rgba(40, 167, 69, 0.1), 0 2px 10px rgba(40, 167, 69, 0.15);
  background: rgba(212, 237, 218, 0.1);
}

/* Validation Animation */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* ASP.NET Core Validation Summary Styling */
.validation-summary-errors {
  background: linear-gradient(135deg, rgba(220, 53, 69, 0.05) 0%, rgba(220, 53, 69, 0.05) 100%);
  border: 2px solid rgba(220, 53, 69, 0.2);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 20px rgba(220, 53, 69, 0.15);
}

.validation-summary-errors ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.validation-summary-errors li {
  color: #721c24;
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.validation-summary-errors li::before {
  content: '⚠';
  font-size: 1rem;
  color: #dc3545;
}

.validation-summary-errors li:last-child {
  margin-bottom: 0;
}

/* Footer/Link Components */
.page-footer {
  text-align: center;
  color: #6c757d;
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.4;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(40, 167, 69, 0.1);
}

.page-link {
  color: #28a745;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
}

.page-link:hover {
  color: #20c997;
  text-decoration: none;
}

.page-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #28a745 0%, #20c997 100%);
  transition: width 0.3s ease;
}

.page-link:hover::after {
  width: 100%;
}

/* Action Section Component */
.action-section {
  display: flex;
  justify-content: center;
  padding-top: 1rem;
}

/* Focus and Accessibility Improvements */
.btn:focus,
.form-input:focus,
.form-check-input:focus {
  outline: 2px solid #28a745;
  outline-offset: 2px;
}

.btn:focus:not(:focus-visible),
.form-input:focus:not(:focus-visible),
.form-check-input:focus:not(:focus-visible) {
  outline: none;
}

/* Loading State */
.btn--loading {
  position: relative;
  color: transparent !important;
}

.btn--loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Smooth Transitions */
* {
  scroll-behavior: smooth;
}

/* Enhanced Glass Effect */
.page-content-wrapper {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ============================================
   PAGE-SPECIFIC STYLES
   ============================================ */

/* Welcome Page */
.hero-logo-section {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem 0;
  margin-bottom: 1rem;
}

.hero-logo-wrapper {
  width: 200px;
  height: 200px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(74, 144, 226, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-logo-wrapper:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(74, 144, 226, 0.4);
}

.hero-logo {
  width: 140px;
  height: 140px;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

/* How to Play Specific */
.howtoplay-list {
  list-style: none;
  counter-reset: step-counter;
  padding: 0;
  margin: 0;
}

.howtoplay-item {
  counter-increment: step-counter;
  position: relative;
  padding: 1rem 0 1rem 3rem;
  color: #1c1c0d;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  border-bottom: 1px solid #f4f4e6;
}

.howtoplay-item:last-child {
  border-bottom: none;
}

.howtoplay-item::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 1rem;
  width: 2rem;
  height: 2rem;
  background: #28a745;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
}

.howtoplay-item strong {
  color: #1c1c0d;
  font-weight: 600;
}

.howtoplay-section {
  text-align: left;
  margin-bottom: 2.5rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
  .main-wrapper {
    padding: 0 5rem;
  }
}

@media (max-width: 768px) {
  .main-header {
    padding: 0.75rem 1.5rem;
  }
  
  .header-flex {
    gap: 1rem;
  }
  
  .nav-links {
    gap: 1.5rem;
  }
  
  .main-wrapper {
    padding: 0 2rem;
  }
  
  .content-container {
    width: 100%;
    max-width: 100%;
  }
  
  .page-container {
    padding-top: 2rem;
  }
  
  .page-content-wrapper {
    padding: 2rem 1.5rem;
    margin: 0 1rem;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(40, 167, 69, 0.12);
  }
  
  .page-content-wrapper--narrow {
    max-width: none;
  }
  
  .hero-logo-wrapper {
    width: 160px;
    height: 160px;
  }
  
  .hero-logo {
    width: 110px;
    height: 110px;
  }
  
  .page-title {
    font-size: 1.5rem;
  }
  
  .page-title--medium {
    font-size: 1.375rem;
    margin-bottom: 2rem;
  }
  
  .form-container {
    gap: 1.5rem;
  }
  
  .form-input {
    height: 2.75rem;
    font-size: 0.9rem;
  }
  
  .btn--large {
    height: 2.75rem;
    font-size: 0.95rem;
  }
  
  .category-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    padding: 0 0.5rem;
  }
  
  .category-card-content {
    padding: 1.5rem 1rem;
  }
  
  .category-icon {
    font-size: 2rem;
  }
  
  .category-name {
    font-size: 1rem;
  }
  
  .game-stats {
    gap: 1rem;
  }
  
  .stat-card {
    min-width: 100px;
    padding: 1rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .timer-card {
    min-width: 60px;
    padding: 0.75rem 1rem;
  }
  
  .timer-number {
    font-size: 1.5rem;
  }
  
  .hint-section {
    padding: 1.5rem;
  }
  
  .hint-title {
    font-size: 1.125rem;
  }
  
  .hint-text {
    font-size: 1rem;
  }
  
  .profile-picture-wrapper {
    width: 100px;
    height: 100px;
  }
  
  .user-stats {
    gap: 0.75rem;
  }
  
  .user-stats .stat-card {
    min-width: 80px;
  }
  
  .filter-buttons {
    flex-wrap: wrap;
    gap: 0.25rem;
  }
  
  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }
  
  .leaderboard-header {
    grid-template-columns: 60px 1fr 80px;
    font-size: 0.75rem;
  }
  
  .leaderboard-row {
    grid-template-columns: 60px 1fr 80px;
    padding: 0.75rem 1rem;
  }
  
  .stats-col {
    display: none;
  }
  
  .player-avatar {
    width: 36px;
    height: 36px;
  }
  
  .player-name {
    font-size: 0.875rem;
  }
  
  .player-category {
    font-size: 0.625rem;
  }
  
  .score-number {
    font-size: 1rem;
  }
}

@media (max-width: 576px) {
  .main-header {
    padding: 0.75rem 1rem;
  }
  
  .header-flex {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
  }
  
  .nav-links {
    order: 2;
    gap: 1rem;
  }
  
  .auth-buttons {
    order: 1;
  }
  
  .main-wrapper {
    padding: 0 1rem;
  }
  
  .page-container {
    padding-top: 1.5rem;
  }
  
  .page-content-wrapper {
    padding: 1.75rem 1rem;
    margin: 0 0.5rem;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(40, 167, 69, 0.15);
  }
  
  .page-title {
    font-size: 1.375rem;
  }
  
  .page-title--medium {
    font-size: 1.25rem;
    margin-bottom: 1.75rem;
  }
  
  .page-subtitle {
    font-size: 0.9rem;
  }
  
  .form-container {
    gap: 1.25rem;
  }
  
  .form-input {
    height: 2.5rem;
    padding: 0 1rem;
    font-size: 0.9rem;
    border-radius: 14px;
  }
  
  .form-label {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
  }
  
  .btn--large {
    height: 2.5rem;
    font-size: 0.9rem;
    border-radius: 14px;
  }
  
  .page-footer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    font-size: 0.85rem;
  }
  
  .hero-logo-section {
    padding: 1.5rem 0;
  }
  
  .hero-logo-wrapper {
    width: 140px;
    height: 140px;
  }
  
  .hero-logo {
    width: 90px;
    height: 90px;
  }
  
  .howtoplay-item {
    padding: 0.75rem 0 0.75rem 2.5rem;
    font-size: 0.9rem;
  }
  
  .howtoplay-item::before {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.75rem;
  }
  
  .btn--extra-large {
    min-width: 180px;
    height: 2.75rem;
    font-size: 0.8rem;
    padding: 0 1.5rem;
  }
  
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    padding: 0;
  }
  
  .category-card-content {
    padding: 1.25rem 0.75rem;
  }
  
  .category-icon {
    font-size: 1.75rem;
  }
  
  .category-name {
    font-size: 0.9rem;
  }
  
  .category-description {
    font-size: 0.75rem;
  }
  
  .game-stats {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .stat-card {
    min-width: auto;
    padding: 0.75rem 1rem;
  }
  
  .stat-number {
    font-size: 1.25rem;
  }
  
  .timer-section {
    gap: 0.5rem;
  }
  
  .timer-card {
    min-width: 50px;
    padding: 0.5rem 0.75rem;
  }
  
  .timer-number {
    font-size: 1.25rem;
  }
  
  .timer-separator {
    font-size: 1.5rem;
  }
  
  .hint-section {
    padding: 1rem;
  }
  
  .hint-title {
    font-size: 1rem;
  }
  
  .hint-text {
    font-size: 0.9rem;
  }
  
  .guess-input {
    height: 2.5rem;
    font-size: 1rem;
    padding: 0 1rem;
  }
  
  .game-message {
    font-size: 1rem;
    padding: 1rem;
  }
  
  .game-over-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .profile-picture-wrapper {
    width: 80px;
    height: 80px;
  }
  
  .user-stats {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .user-stats .stat-card {
    min-width: auto;
    max-width: none;
  }
  
  .stat-icon {
    font-size: 1.5rem;
  }
  
  .filter-buttons {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.25rem;
  }
  
  .leaderboard-header {
    grid-template-columns: 50px 1fr 60px;
    padding: 0.75rem;
    font-size: 0.625rem;
  }
  
  .leaderboard-row {
    grid-template-columns: 50px 1fr 60px;
    padding: 0.5rem 0.75rem;
  }
  
  .player-info {
    gap: 0.5rem;
  }
  
  .player-avatar {
    width: 32px;
    height: 32px;
  }
  
  .player-name {
    font-size: 0.75rem;
  }
  
  .player-category {
    display: none;
  }
  
  .score-number {
    font-size: 0.875rem;
  }
  
  .score-label {
    font-size: 0.625rem;
  }
  
  .rank-number {
    font-size: 1rem;
  }
  
  .empty-leaderboard {
    padding: 2rem 1rem;
  }
  
  .empty-icon {
    font-size: 3rem;
  }
  
  .empty-title {
    font-size: 1.25rem;
  }
}

/* Category Selection Page */
.category-form {
  width: 100%;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 0 1rem;
}

.category-card {
  position: relative;
  cursor: pointer;
  display: block;
  transition: transform 0.2s ease;
}

.category-card:hover {
  transform: translateY(-4px);
}

.category-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.category-card-content {
  background: #ffffff;
  border: 2px solid #e9ecef;
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
}

.category-card:hover .category-card-content {
  border-color: #28a745;
  box-shadow: 0 8px 24px rgba(40, 167, 69, 0.15);
}

.category-card--active .category-card-content {
  border-color: #28a745;
  border-width: 3px;
  background: rgba(40, 167, 69, 0.05);
  box-shadow: 0 8px 24px rgba(40, 167, 69, 0.2);
}

.category-icon {
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.category-name {
  color: #1c1c0d;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.category-description {
  color: #6c757d;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.4;
}

.category-card--active .category-name {
  color: #28a745;
}

.category-card--active .category-description {
  color: #28a745;
  opacity: 0.8;
}

/* Gameplay Page */
.game-header {
  text-align: center;
  margin-bottom: 2rem;
}

.game-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: #ffffff;
  border: 2px solid #e9ecef;
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  min-width: 120px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.stat-number {
  color: #28a745;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: #6c757d;
  font-size: 0.875rem;
  font-weight: 500;
}

.timer-section {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  transition: all 0.3s ease;
}

.timer-card {
  background: #ffffff;
  border: 2px solid #e9ecef;
  border-radius: 16px;
  padding: 1rem 1.5rem;
  text-align: center;
  min-width: 80px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.timer-number {
  color: #1c1c0d;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.timer-label {
  color: #6c757d;
  font-size: 0.75rem;
  font-weight: 500;
}

.timer-separator {
  color: #1c1c0d;
  font-size: 2rem;
  font-weight: 700;
}

.timer--warning .timer-card {
  border-color: #ffc107;
  background: rgba(255, 193, 7, 0.1);
}

.timer--warning .timer-number {
  color: #ffc107;
}

.timer--danger .timer-card {
  border-color: #dc3545;
  background: rgba(220, 53, 69, 0.1);
  animation: pulse 1s infinite;
}

.timer--danger .timer-number {
  color: #dc3545;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.hint-section {
  background: rgba(40, 167, 69, 0.05);
  border: 2px solid rgba(40, 167, 69, 0.2);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  margin-bottom: 2rem;
}

.hint-title {
  color: #28a745;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
}

.hint-text {
  color: #1c1c0d;
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.5;
  margin: 0;
}

.game-form {
  margin-bottom: 2rem;
}

.guess-input-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.guess-input {
  width: 100%;
  max-width: 400px;
  height: 3rem;
  padding: 0 1.5rem;
  border: 2px solid #e9ecef;
  border-radius: 9999px;
  background: #ffffff;
  color: #1c1c0d;
  font-size: 1.125rem;
  font-weight: 500;
  text-align: center;
  transition: all 0.2s ease;
}

.guess-input:focus {
  outline: none;
  border-color: #28a745;
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.guess-input::placeholder {
  color: #6c757d;
  font-weight: 400;
}

.game-message {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2rem;
  border-left: 4px solid;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  position: relative;
  backdrop-filter: blur(10px);
}

.game-message--success {
  border-left-color: #28a745;
  background: linear-gradient(135deg, rgba(40, 167, 69, 0.05) 0%, rgba(32, 201, 151, 0.05) 100%);
  color: #155724;
  box-shadow: 0 4px 20px rgba(40, 167, 69, 0.15);
}

.game-message--error {
  border-left-color: #dc3545;
  background: linear-gradient(135deg, rgba(220, 53, 69, 0.05) 0%, rgba(220, 53, 69, 0.05) 100%);
  color: #721c24;
  box-shadow: 0 4px 20px rgba(220, 53, 69, 0.15);
}

.game-message--info {
  border-left-color: #17a2b8;
  background: linear-gradient(135deg, rgba(23, 162, 184, 0.05) 0%, rgba(23, 162, 184, 0.05) 100%);
  color: #0c5460;
  box-shadow: 0 4px 20px rgba(23, 162, 184, 0.15);
}

.previous-guesses-section {
  margin-bottom: 2rem;
}

.previous-guesses-title {
  color: #1c1c0d;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-align: center;
}

.previous-guesses-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.guess-chip {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 2px solid;
}

.guess-chip--correct {
  background: rgba(40, 167, 69, 0.1);
  border-color: #28a745;
  color: #28a745;
}

.guess-chip--wrong {
  background: rgba(220, 53, 69, 0.1);
  border-color: #dc3545;
  color: #dc3545;
}

.game-over-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Profile Page */
.profile-picture-section {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.profile-picture-wrapper {
  position: relative;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #28a745;
  box-shadow: 0 8px 24px rgba(40, 167, 69, 0.2);
  transition: all 0.3s ease;
}

.profile-picture-wrapper:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 32px rgba(40, 167, 69, 0.3);
}

.profile-picture {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.profile-picture-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 0.5rem;
  text-align: center;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.profile-picture-wrapper:hover .profile-picture-overlay {
  transform: translateY(0);
}

.profile-picture-button {
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  margin: 0;
  color: white;
}

.user-stats {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.user-stats .stat-card {
  min-width: 100px;
  flex: 1;
  max-width: 150px;
}

.stat-icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.profile-actions {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 2px solid #f4f4e6;
}

.logout-form {
  display: flex;
  justify-content: center;
}

.logout-button {
  background: #dc3545 !important;
  border-color: #dc3545 !important;
  color: white !important;
}

.logout-button:hover {
  background: #c82333 !important;
  border-color: #bd2130 !important;
  color: white !important;
}

/* Leaderboard Page */
.leaderboard-filters {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.filter-buttons {
  display: flex;
  background: #ffffff;
  border-radius: 9999px;
  padding: 0.25rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  border: 2px solid #f4f4e6;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: #6c757d;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.filter-btn:hover {
  color: #28a745;
  text-decoration: none;
}

.filter-btn--active {
  background: #28a745;
  color: #ffffff !important;
  font-weight: 600;
}

.leaderboard-container {
  margin-bottom: 2rem;
}

.leaderboard-table {
  background: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  border: 2px solid #f4f4e6;
}

.leaderboard-header {
  display: grid;
  grid-template-columns: 80px 1fr 120px 200px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: #f8f9fa;
  border-bottom: 2px solid #f4f4e6;
  font-weight: 600;
  font-size: 0.875rem;
  color: #6c757d;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.leaderboard-row {
  display: grid;
  grid-template-columns: 80px 1fr 120px 200px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #f4f4e6;
  transition: all 0.2s ease;
  align-items: center;
}

.leaderboard-row:last-child {
  border-bottom: none;
}

.leaderboard-row:hover {
  background: rgba(40, 167, 69, 0.02);
}

.leaderboard-row--podium {
  background: linear-gradient(90deg, rgba(255, 215, 0, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
  border-left: 4px solid #ffd700;
}

.leaderboard-row--podium:nth-child(3) {
  background: linear-gradient(90deg, rgba(192, 192, 192, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
  border-left-color: #c0c0c0;
}

.leaderboard-row--podium:nth-child(4) {
  background: linear-gradient(90deg, rgba(205, 127, 50, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
  border-left-color: #cd7f32;
}

.rank-display {
  text-align: center;
}

.rank-number {
  font-size: 1.25rem;
  font-weight: 700;
}

.player-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.player-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #e9ecef;
  flex-shrink: 0;
}

.avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.player-details {
  flex: 1;
}

.player-name {
  color: #1c1c0d;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.player-category {
  color: #6c757d;
  font-size: 0.75rem;
  font-weight: 400;
}

.score-display {
  text-align: center;
}

.score-number {
  color: #28a745;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  display: block;
}

.score-label {
  color: #6c757d;
  font-size: 0.75rem;
  font-weight: 400;
}

.player-stats {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.stat-item {
  text-align: center;
  flex: 1;
}

.stat-value {
  color: #1c1c0d;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  display: block;
  margin-bottom: 0.25rem;
}

.stat-label {
  color: #6c757d;
  font-size: 0.625rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.empty-leaderboard {
  text-align: center;
  padding: 4rem 2rem;
  background: #ffffff;
  border-radius: 16px;
  border: 2px solid #f4f4e6;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.empty-title {
  color: #1c1c0d;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
}

.empty-text {
  color: #6c757d;
  font-size: 1rem;
  line-height: 1.5;
  margin: 0 0 2rem 0;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}