@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap");
:root {
  --primary-color: #1763e1;
  --primary-dark: #0d4cb1;
  --primary-light: #87aaeb;
  --glass-primary: rgba(23, 99, 225, 0.1);
  --glass-secondary: rgba(135, 206, 235, 0.08);
  --glass-white: rgba(255, 255, 255, 0.25);
  --glass-border: rgba(255, 255, 255, 0.3);
  --text-primary: #2c3e50;
  --text-secondary: #5a6c7d;
  --text-muted: #7f8c8d;
  --bg-primary: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.1);
  --shadow-glass: 0 8px 32px rgba(31, 38, 135, 0.15);
  --shadow-glow: 0 0 25px rgba(23, 99, 225, 0.3);
  --border-radius: 16px;
  --border-radius-lg: 24px;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: all 0.2s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Montserrat", sans-serif;
}

body {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  padding: 20px;
  position: relative;
  overflow-x: hidden;
}

/* Dynamic Background */
.dynamic-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.bg-blur {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
  animation: float 20s ease-in-out infinite;
}

.bg-blur-1 {
  width: 400px;
  height: 400px;
  background: linear-gradient(45deg, var(--primary-light), var(--primary-color));
  top: -10%;
  left: -10%;
  animation-delay: 0s;
}

.bg-blur-2 {
  width: 350px;
  height: 350px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  top: 20%;
  right: -15%;
  animation-delay: 5s;
}

.bg-blur-3 {
  width: 300px;
  height: 300px;
  background: linear-gradient(225deg, var(--primary-color), var(--primary-light));
  bottom: 10%;
  left: 20%;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -50px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}

/* Glass Morphism Base */
.glass-morphism {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
}

/* Settings Container */
.settings-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Settings Header */
.settings-header {
  padding: 20px 30px;
  border-radius: var(--border-radius-lg);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.settings-header h1 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  text-align: center;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.3);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.5);
  transform: translateX(-5px);
}

/* Profile Header */
.profile-header {
  padding: 30px;
  border-radius: var(--border-radius-lg);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 30px;
}

.profile-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--glass-border);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-info {
  flex: 1;
}

.profile-info h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.profile-info p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.user-role {
  display: inline-block;
  padding: 5px 15px;
  background: var(--glass-primary);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-color);
}

/* Tab Navigation */
.tab-navigation {
  padding: 10px;
  border-radius: var(--border-radius-lg);
  margin-bottom: 30px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tab-btn {
  flex: 1;
  min-width: 150px;
  padding: 15px 25px;
  border: none;
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: white;
  box-shadow: var(--shadow-glow);
}

/* Content Panel */
.content-panel {
  position: relative;
  min-height: 400px;
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Results Tab */
.results-header {
  margin-bottom: 30px;
}

.results-header h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.results-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 20px;
  border: 2px solid var(--glass-border);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.3);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.filter-btn.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.result-card {
  padding: 20px;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-color);
}

.result-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.result-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.result-type {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.result-badge {
  padding: 5px 12px;
  background: var(--glass-primary);
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-color);
}

.result-details {
  margin-bottom: 10px;
}

.result-score {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.result-test-id {
  font-size: 14px;
  color: var(--text-secondary);
}

.result-date {
  font-size: 13px;
  color: var(--text-muted);
}

.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 64px;
  margin-bottom: 20px;
  opacity: 0.5;
}

/* Statistics Tab */
.stats-header {
  padding: 20px 30px;
  border-radius: var(--border-radius-lg);
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.stats-header h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

.stats-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.stats-controls label {
  font-weight: 600;
  color: var(--text-primary);
}

.glass-select {
  padding: 10px 15px;
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.3);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.glass-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(23, 99, 225, 0.1);
}

.chart-container {
  padding: 30px;
  border-radius: var(--border-radius-lg);
  margin-bottom: 20px;
  min-height: 400px;
}

.trend-feedback {
  padding: 25px;
  border-radius: var(--border-radius-lg);
}

.trend-feedback h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 15px;
}

.trend-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: var(--border-radius);
  font-weight: 600;
  margin-bottom: 15px;
}

.trend-status.improving {
  background: rgba(46, 213, 115, 0.2);
  color: #27ae60;
}

.trend-status.declining {
  background: rgba(255, 71, 87, 0.2);
  color: #e74c3c;
}

.trend-status.stagnant {
  background: rgba(255, 165, 0, 0.2);
  color: #f39c12;
}

.trend-details {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Personal Details Tab */
.personal-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.detail-card {
  padding: 25px;
  border-radius: var(--border-radius-lg);
}

.detail-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.input-group {
  margin-bottom: 15px;
  display: flex;
  gap: 10px;
}

.glass-input {
  flex: 1;
  padding: 12px 15px;
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.3);
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition-fast);
}

.glass-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(23, 99, 225, 0.1);
  background: rgba(255, 255, 255, 0.5);
}

.glass-input::placeholder {
  color: var(--text-muted);
}

.glass-btn {
  padding: 12px 20px;
  border: none;
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.3);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.glass-btn:hover {
  background: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.glass-btn-primary {
  padding: 12px 20px;
  border: none;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.glass-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.glass-btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.message {
  font-size: 14px;
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  display: none;
}

.message.success {
  display: block;
  background: rgba(46, 213, 115, 0.2);
  color: #27ae60;
}

.message.error {
  display: block;
  background: rgba(255, 71, 87, 0.2);
  color: #e74c3c;
}

.helper-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Profile Picture Upload Section */
.pfp-upload-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.pfp-preview {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--glass-border);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 10px;
}

.pfp-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Loading States */
.loading-message {
  padding: 40px;
  text-align: center;
  border-radius: var(--border-radius-lg);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(23, 99, 225, 0.2);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

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

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.loading-content {
  padding: 40px;
  border-radius: var(--border-radius-lg);
  text-align: center;
}

.loading-content p {
  margin-top: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .settings-container {
    padding: 10px;
  }

  .settings-header {
    flex-direction: column;
    text-align: center;
  }

  .settings-header h1 {
    font-size: 24px;
  }

  .profile-header {
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }

  .tab-navigation {
    flex-direction: column;
  }

  .tab-btn {
    width: 100%;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

  .stats-header {
    flex-direction: column;
    align-items: stretch;
  }

  .stats-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .personal-details-grid {
    grid-template-columns: 1fr;
  }

  .input-group {
    flex-direction: column;
  }
}