/* ===========================================
   SIDECAR DESIGN SYSTEM
   Swiss Minimal + Heat Map - Light Theme
   =========================================== */

/* ===========================================
   1. GOOGLE FONTS IMPORT
   =========================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ===========================================
   2. CSS VARIABLES
   =========================================== */
:root {
  /* Background - Warm Stone (Tostado) */
  --bg-main: #FAFAF9;
  --bg-secondary: #F5F5F4;
  --bg-card: #FFFFFF;
  
  /* Primary - Data Blue */
  --primary-400: #60A5FA;
  --primary-500: #3B82F6;
  --primary-600: #2563EB;
  --primary-700: #1D4ED8;
  --primary-800: #1E40AF;
  --primary-900: #1E3A8A;
  
  /* Secondary */
  --secondary-400: #60A5FA;
  --secondary-500: #3B82F6;
  
  /* CTA / Accent - Amber/Tierra */
  --cta: #F59E0B;
  --cta-hover: #D97706;
  
  /* Success - Green */
  --success: #22C55E;
  --success-light: #D1FAE5;
  
  /* Status Colors */
  --warning: #F59E0B;
  --warning-light: #FEF3C7;
  --error: #EF4444;
  --error-light: #FEE2E2;
  
  /* Text */
  --text-primary: #1E3A8A;
  --text-secondary: #4B5563;
  --text-muted: #64748B;
  --text-white: #FFFFFF;
  
  /* Neutral */
  --neutral-50: #F9FAFB;
  --neutral-100: #F3F4F6;
  --neutral-200: #E5E7EB;
  --neutral-300: #D1D5DB;
  --neutral-400: #9CA3AF;
  --neutral-500: #6B7280;
  --neutral-600: #4B5563;
  --neutral-700: #374151;
  --neutral-800: #1F2937;
  --neutral-900: #111827;
  
  /* Track States */
  --track-empty: #E5E7EB;
  --track-active: #FEF3C7;
  --track-complete: #D1FAE5;
  
  /* Heat Map Scale */
  --heat-1: #DBEAFE;
  --heat-2: #93C5FD;
  --heat-3: #3B82F6;
  --heat-4: #1D4ED8;
  --heat-5: #1E40AF;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows - Enhanced with depth and lift effects */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 24px -4px rgba(0, 0, 0, 0.12), 0 4px 8px -2px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.02);
  --shadow-xl: 0 20px 32px -8px rgba(0, 0, 0, 0.15), 0 8px 16px -4px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.02);
  --shadow-hover: 0 12px 32px -4px rgba(0, 0, 0, 0.15), 0 4px 12px -2px rgba(0, 0, 0, 0.08);

  /* Transitions - Enhanced with custom easing for natural feel */
  --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 280ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Container */
  --container-max: 1280px;
  --container-padding: 2rem;
}

/* ===========================================
   3. BASE STYLES
   =========================================== */

/* CSS Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-secondary);
  background-color: var(--bg-main);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--space-4);
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-700);
}

/* Interactive Elements Base - Enhanced with better focus and hover states */
button, .btn {
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

button::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

button:hover::after {
  opacity: 1;
}

button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2);
}

button:active {
  transform: translateY(1px);
}

/* Input Base - Enhanced with better focus states and depth */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  background-color: var(--bg-main);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  background-image: linear-gradient(180deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0.1) 100%);
}

input:hover, textarea:hover, select:hover {
  border-color: var(--neutral-400);
  background-image: linear-gradient(180deg, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0.2) 100%);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary-500);
  border-width: 2px;
  padding: calc(var(--space-3) - 2px) var(--space-4);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
  background-image: linear-gradient(180deg, rgba(59, 130, 246, 0.08) 0%, rgba(59, 130, 246, 0.02) 100%);
}

input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* Cursor Utilities */
.cursor-pointer {
  cursor: pointer;
}

/* ===========================================
   4. APP CONTAINER
   =========================================== */
.app-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  min-height: 100vh;
  width: 100%;
}

/* ===========================================
   5. HERO HEADER - Enhanced with logo
   =========================================== */
.hero-header {
  text-align: center;
  margin-top: 0;
  margin-bottom: var(--space-8);
  padding-top: var(--space-4);
}

/* ===========================================
   6. PROGRESS HEADER - Inside App Container
   =========================================== */
.progress-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-4);
  background-color: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  margin: 0 0 var(--space-4) 0;
  flex-wrap: wrap;
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
  box-sizing: border-box;
  /* Width matches app-container automatically */
}

.progress-header:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(59, 130, 246, 0.12);
}

/* Progress bar container - matches app-container width */
.progress-bar-container {
  flex: 1 1 40%;
  min-width: 0;
  height: 12px;
  background-color: var(--neutral-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-500) 0%, var(--primary-700) 100%);
  border-radius: 9999px;
  transition: width var(--transition-slow);
}

.progress-bar.show-progress::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
  opacity: 0;
  transform: translateX(-100%);
  transition: transform 0.5s ease-out;
}

.progress-bar.show-progress::after {
  opacity: 1;
  transform: translateX(0);
}

.progress-text {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-600);
  min-width: 50px;
  text-align: right;
}

.hero-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.hero-header h1 .logo {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  /* Logo uses its own SVG gradient - just ensure proper sizing */
}

.hero-header .subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: -0.5rem;
  margin-bottom: 0;
}

#content-container {
  width: 100%;
}

/* ===========================================
   5. SYNC INDICATOR - Enhanced with smooth animations
   =========================================== */
.sync-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background-color: var(--neutral-100);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.sync-indicator.visible {
  opacity: 1;
  visibility: visible;
}

.sync-indicator.visible::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 2px;
  background-color: var(--success);
  border-radius: 2px;
  animation: sync-dot 2s ease-in-out infinite;
}

@keyframes sync-dot {
  0%, 100% {
    height: 2px;
    opacity: 1;
  }
  50% {
    height: 8px;
    opacity: 0.5;
  }
}

.sync-indicator.syncing {
  background-color: var(--primary-100);
  color: var(--primary-700);
}

.sync-indicator.syncing::after {
  animation: sync-pulse 1.5s ease-in-out infinite;
}

@keyframes sync-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(59, 130, 246, 0);
  }
}

.sync-icon {
  font-size: 0.875rem;
}

.sync-text {
  white-space: nowrap;
}

/* ===========================================
   6. PROGRESS HEADER - Full Width + Depth
   =========================================== */
.progress-header {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-5) var(--space-6);
  background-color: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  margin: 0 auto var(--space-6);
  flex-wrap: wrap;
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
  width: 100%;
}

.progress-header:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(59, 130, 246, 0.12);
}

.progress-header:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(59, 130, 246, 0.1);
}

.progress-title {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  min-width: 120px;
}

.progress-bar-container {
  flex: 1;
  min-width: 0;
  height: 12px;
  background-color: var(--neutral-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-500) 0%, var(--primary-700) 100%);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
  opacity: 0;
  transform: translateX(-100%);
  transition: transform 0.5s ease-out;
}

.progress-bar.show-progress::after {
  opacity: 1;
  transform: translateX(0);
}

.progress-text {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-600);
  min-width: 50px;
  text-align: right;
}

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: linear-gradient(135deg, var(--cta) 0%, var(--cta-hover) 100%);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.streak-badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.streak-badge:hover::before {
  opacity: 1;
}

.streak-badge:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.streak-badge:active {
  transform: scale(1);
}

.badges-wrapper {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.badge {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.badge:hover::before {
  opacity: 1;
}

.badge:hover {
  transform: scale(1.15);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 1;
}

.badge:active {
  transform: scale(1.1);
}

/* New badge animation */
.badge.unlocked {
  animation: badge-pop 0.3s ease-out;
}

@keyframes badge-pop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ===========================================
   7. MODALS - Enhanced with depth and smooth animations
   =========================================== */

/* Modal Overlay with blur backdrop */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Modal Box Base - Enhanced with inner shadow and depth */
.modal-box {
  background-color: var(--bg-main);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-normal);
  border: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
}

.modal-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.5) 50%, transparent 100%);
}

.modal-overlay.active .modal-box {
  transform: scale(1) translateY(0);
}

.modal-overlay.active {
  transition: opacity 300ms ease-out, visibility 300ms ease-out;
}

/* Score Modal */
.score-modal-box {
  text-align: center;
}

.score-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
}

.score-modal-box h3 {
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.score-input-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.score-adjust-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--neutral-100);
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.score-adjust-btn:hover {
  background-color: var(--neutral-200);
  transform: scale(1.1);
}

.score-input {
  width: 100px;
  height: 56px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
  border: 2px solid var(--primary-500);
  border-radius: var(--radius-lg);
}

.score-input::-webkit-outer-spin-button,
.score-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.modal-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

.modal-btn {
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.modal-btn-cancel {
  background-color: var(--neutral-100);
  color: var(--text-secondary);
}

.modal-btn-cancel:hover {
  background-color: var(--neutral-200);
}

.btn-save-score {
  background-color: var(--primary-600);
  color: var(--text-white);
}

.btn-save-score:hover {
  background-color: var(--primary-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Voyage Modal */
.modal-card {
  background-color: var(--bg-main);
  border-radius: var(--radius-2xl);
  max-width: 480px;
  width: 100%;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--space-6);
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
}

.modal-title {
  color: var(--text-white);
  font-size: 1.25rem;
  text-align: center;
}

.modal-body {
  padding: var(--space-6);
  text-align: center;
}

.voyage-status {
  margin-bottom: var(--space-4);
}

.voyage-icon-large {
  font-size: 4rem;
}

.voyage-desc {
  color: var(--text-muted);
  margin-bottom: var(--space-6);
}

.voyage-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.voyage-btn {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.voyage-btn.maintenance {
  background-color: var(--neutral-100);
  color: var(--text-primary);
}

.voyage-btn.maintenance:hover {
  background-color: var(--neutral-200);
}

.voyage-btn.conquest {
  background: linear-gradient(135deg, var(--cta) 0%, var(--cta-hover) 100%);
  color: var(--text-white);
}

.voyage-btn.conquest:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--neutral-200);
  display: flex;
  justify-content: center;
}

/* Sync Modal */
.btn-sync {
  background-color: var(--primary-600);
  color: var(--text-white);
}

.btn-sync:hover {
  background-color: var(--primary-700);
}

.btn-import {
  background-color: var(--success);
  color: var(--text-white);
}

.btn-import:hover {
  background-color: #16a34a;
}

.btn-export {
  background-color: var(--neutral-700);
  color: var(--text-white);
}

.btn-export:hover {
  background-color: var(--neutral-800);
}

/* Login Modal */
.modal-input {
  width: 100%;
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  font-size: 1rem;
  text-align: center;
}

/* ===========================================
   8. TOAST - Enhanced with smooth animations
   =========================================== */
.toast {
  position: fixed;
  top: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-white);
  background-color: var(--neutral-800);
  box-shadow: var(--shadow-lg);
  z-index: 1100;
  opacity: 0;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  overflow: hidden;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease-out;
}

.toast.show::after {
  transform: scaleX(1);
}

.toast.error {
  background-color: var(--error);
}

.toast.error::before {
  content: '??';
}

.toast.success {
  background-color: var(--success);
}

.toast.success::before {
  content: '?';
  font-weight: 700;
}

.toast.warning {
  background-color: var(--warning);
}

.toast.warning::before {
  content: '?';
}

/* ===========================================
/* ===========================================
   9. TRACK BUTTONS - Premium Tracking System
   =========================================== */

.track-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
}

.track-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  min-width: 95px;
  height: 42px;
  border-radius: var(--radius-lg);
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--neutral-200);
  background: var(--bg-card);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* Base Hover */
.track-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--neutral-300);
}

.track-icon {
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-bounce);
}

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

/* === STATE: EMPTY === */
.track-btn.empty {
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  border-style: dashed;
}

.track-btn.empty:hover {
  background-color: var(--neutral-100);
  border-style: solid;
}

/* === STATE: ACTIVE (In Progress) === */
.track-btn.active {
  background: white;
  border-color: var(--primary-400);
  color: var(--primary-700);
  box-shadow: 0 0 0 1px var(--primary-100), var(--shadow-sm);
}

/* Single clean indicator dot for active state */
.track-btn.active::after {
  content: '';
  position: absolute;
  top: 6px;
  right: 6px;
  width: 6px;
  height: 6px;
  background-color: var(--primary-500);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--primary-300);
}

.track-btn.active:hover {
  background: var(--primary-50);
}

/* === STATE: COMPLETE === */
.track-btn.complete {
  background: linear-gradient(135deg, var(--success) 0%, #16a34a 100%);
  border-color: #15803d;
  color: white;
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.2);
}

.track-btn.complete .track-text { color: white; }
.track-btn.complete::after { display: none; } /* Hide active dot if complete */

/* Specialized Overrides */
.track-btn.draft.active { border-color: #818CF8; color: #4338CA; }
.track-btn.draft.active::after { background-color: #6366F1; }

.track-btn.test.active { border-color: #FBBF24; color: #B45309; }
.track-btn.test.active::after { background-color: #F59E0B; }

/* === VOYAGE BUTTON === */
.track-btn.voyage {
  min-width: 125px;
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  border-color: #334155;
  color: white;
}

.track-btn.voyage.active {
  animation: voyage-glow 2s infinite;
}

@keyframes voyage-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
}

.track-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(1);
}


/* ===========================================
   10. CARDS - Enhanced with depth and hover effects
   =========================================== */
.card {
  background-color: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.15);
}

.card:active {
  transform: translateY(-2px);
}

/* Card with inner shadow for depth */
.card-inner {
  background: linear-gradient(180deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.1) 100%);
  padding: var(--space-4);
  border-radius: calc(var(--radius-xl) - 4px);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.4), inset 0 0 0 1px rgba(255,255,255,0.1);
}

/* ===========================================
   11. TOPICS & SECTIONS
   =========================================== */

/* Section */
.section {
  margin-bottom: 2rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-500);
}

.section-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: -0.5rem 0 1.5rem 0;
}

/* Topics Grid - MEJORADO */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  padding: 1rem 0;
}

/* Topic Card - MEJORADO */
.topic-card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--neutral-200);
  transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.topic-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
  border-color: var(--primary-300);
}

.topic-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.topic-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
}

.topic-subtitle {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem 0;
}

/* Track Buttons Container */
.track-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* Group Label */
.group-label {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--bg-secondary);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--neutral-200);
}

.card-title {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-primary);
}

.card-body {
  color: var(--text-secondary);
}

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--neutral-200);
}

/* ===========================================
   11. HEAT MAP
   =========================================== */
.heat-map {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--space-2);
}

.heat-cell {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.heat-cell:hover {
  transform: scale(1.2);
  box-shadow: var(--shadow-md);
}

.heat-cell.level-0 {
  background-color: var(--track-empty);
}

.heat-cell.level-1 {
  background-color: var(--heat-1);
}

.heat-cell.level-2 {
  background-color: var(--heat-2);
}

.heat-cell.level-3 {
  background-color: var(--heat-3);
}

.heat-cell.level-4 {
  background-color: var(--heat-4);
}

.heat-cell.level-5 {
  background-color: var(--heat-5);
}

/* ===========================================
   12. DASHBOARD SPECIFIC
   =========================================== */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.stat-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  text-align: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-value {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-600);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===========================================
   13. UTILITIES
   =========================================== */

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

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

/* Spacing */
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.p-2 { padding: var(--space-2); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* Text */
.text-center { text-align: center; }
.text-right { text-align: right; }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-primary-color { color: var(--text-primary); }

/* Backgrounds */
.bg-primary { background-color: var(--primary-500); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-card { background-color: var(--bg-card); }

/* Borders */
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Transitions */
.transition {
  transition: all var(--transition-fast);
}

.transition-slow {
  transition: all var(--transition-slow);
}

/* ===========================================
   14. RESPONSIVE DESIGN
   =========================================== */

/* Tablet */
@media (min-width: 768px) {
  :root {
    --container-padding: 2rem;
  }

  .hero-header h1 {
    font-size: 3rem;
  }

  .progress-header {
    flex-wrap: nowrap;
  }

  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop */
@media (min-width: 1024px) {
  :root {
    --container-padding: 2.5rem;
  }

  .hero-header h1 {
    font-size: 3.5rem;
  }

  .dashboard-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobile */
@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

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

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

  .progress-title {
    min-width: auto;
  }

  .progress-bar-container {
    min-width: auto;
  }

  .progress-text {
    text-align: center;
  }

  .modal-box {
    padding: var(--space-4);
    margin: var(--space-4);
  }

  .modal-buttons {
    flex-direction: column;
  }

  .modal-btn {
    width: 100%;
  }
}

/* ===========================================
   15. ANIMATIONS
   =========================================== */

/* Fade In */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn var(--transition-normal) ease forwards;
}

/* Slide Up */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp var(--transition-normal) ease forwards;
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.scale-in {
  animation: scaleIn var(--transition-normal) ease forwards;
}

/* Staggered children animation */
.stagger-children > * {
  opacity: 0;
  animation: slideUp var(--transition-normal) ease forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 50ms; }
.stagger-children > *:nth-child(3) { animation-delay: 100ms; }
.stagger-children > *:nth-child(4) { animation-delay: 150ms; }
.stagger-children > *:nth-child(5) { animation-delay: 200ms; }
.stagger-children > *:nth-child(6) { animation-delay: 250ms; }
.stagger-children > *:nth-child(7) { animation-delay: 300ms; }
.stagger-children > *:nth-child(8) { animation-delay: 350ms; }

/* Spin */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.spin {
  animation: spin 1s linear infinite;
}

/* Bounce */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.bounce {
  animation: bounce 1s ease infinite;
}

/* ===========================================
   16. SCROLLBAR STYLING
   =========================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--neutral-100);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--neutral-300);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neutral-400);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--neutral-300) var(--neutral-100);
}

/* ===========================================
   17. SELECTION
   =========================================== */
::selection {
  background-color: var(--primary-500);
  color: var(--text-white);
}

/* ===========================================
   18. FOCUS RING
   =========================================== */
.focus-ring:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* ===========================================
   19. PRINT STYLES
   =========================================== */
@media print {
  .no-print {
    display: none !important;
  }

  body {
    background-color: white;
  }

  .card {
    box-shadow: none;
    border: 1px solid var(--neutral-200);
  }
}

/* ===========================================
   DASHBOARD STYLES
   =========================================== */

/* Dashboard Header */
.dashboard-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--neutral-200);
  position: sticky;
  top: 0;
  z-index: 100;
}

.dashboard-header h1 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 200ms ease;
}

.back-btn:hover {
  background: var(--primary-500);
  color: var(--text-white);
}

/* Dashboard Container */
.dashboard-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

.dashboard-section, .dashboard-panel {
  margin-bottom: var(--space-6);
  padding: var(--space-6);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.dashboard-section h2, .dashboard-panel h2 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-4) 0;
}



.countdown-timer {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 1rem 0;
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.countdown-value {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
}

.countdown-label {
  font-size: 0.75rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pace-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  font-size: 0.875rem;
}

.pace-indicator.on-track {
  background: var(--success);
}

.pace-indicator.behind {
  background: var(--error);
}





/* Heat Map */


.heatmap-week {
  display: flex;
  flex-direction: column;
  gap: 3px;
}



.heatmap-cell:hover {
  transform: scale(1.3);
  z-index: 1000;
}

.heatmap-cell.level-1 { background: var(--heat-1); }
.heatmap-cell.level-2 { background: var(--heat-2); }
.heatmap-cell.level-3 { background: var(--heat-3); }
.heatmap-cell.level-4 { background: var(--heat-4); }
.heatmap-cell.level-5 { background: var(--heat-5); }

/* Progress Bars */
.progress-bars {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.progress-bar-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.progress-bar-label {
  font-weight: 500;
  color: var(--text-secondary);
}

.progress-bar-value {
  font-weight: 600;
  color: var(--text-primary);
}

.progress-bar-track {
  height: 8px;
  background: var(--neutral-200);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 500ms ease;
}





.badge-item:hover {
  transform: translateY(-2px);
}

.badge-item.locked {
  opacity: 0.4;
  filter: grayscale(100%);
}

.badge-item.unlocked {
  background: var(--success-light);
}

.badge-emoji {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.badge-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.badge-desc {
  font-size: 0.625rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Responsive Dashboard */
@media (max-width: 768px) {
  .dashboard-header {
    padding: 1rem;
  }
  
  .dashboard-container {
    padding: 1rem;
  }
  
  .kpi-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
  

  
  .countdown-timer {
    gap: 1rem;
  }
  
  .countdown-value {
    font-size: 2rem;
  }
  

}
/* ===========================================
    20. DASHBOARD STYLES - MIGRATED FROM INLINE
    =========================================== */

/* ===========================================
    20.1 COUNTDOWN BANNER
    =========================================== */
.countdown-banner {
    background: var(--bg-card);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--primary-500);
    border-radius: var(--radius-xl);
    padding: var(--space-8) var(--space-6);
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.countdown-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.countdown-banner.past {
    background: linear-gradient(135deg, var(--neutral-600) 0%, var(--neutral-900) 100%);
}

.countdown-title {
    font-family: 'Outfit', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.countdown-exam {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.countdown-details {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
    font-weight: 500;
}

.exam-separator {
    opacity: 0.3;
}

.countdown-timer {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.countdown-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 70px;
}

.countdown-value {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    background: var(--neutral-100);
    color: var(--text-primary);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    min-width: 70px;
}

.countdown-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-top: var(--space-2);
}

.countdown-message {
    margin-top: var(--space-4);
    font-size: 0.875rem;
    padding: var(--space-3) var(--space-4);
    background: var(--neutral-100);
    border-radius: var(--radius-lg);
    display: inline-block;
    font-weight: 600;
}

.countdown-message.on-track {
    background: rgba(34, 197, 94, 0.15);
    color: #15803d;
}

.countdown-message.behind {
    background: rgba(239, 68, 68, 0.15);
    color: #b91c1c;
}

/* Journey Progress Bar */
.journey-container {
    margin-top: var(--space-6);
    padding: 0 var(--space-2);
}

.journey-track {
    height: 12px;
    background: var(--neutral-200);
    border-radius: var(--radius-full);
    position: relative;
    overflow: visible;
    margin-bottom: var(--space-2);
}

.journey-fill {
    height: 100%;
    background: linear-gradient(90deg, #3B82F6 0%, #1D4ED8 100%);
    border-radius: var(--radius-full);
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.4);
    transition: width var(--transition-slow);
}

.journey-marker {
    position: absolute;
    top: 50%;
    width: 16px;
    height: 16px;
    background: var(--bg-card);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border: 3px solid var(--primary-500);
    transition: left var(--transition-slow);
    z-index: 2;
}

.journey-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

.countdown-message.behind .pace-indicator {
    color: var(--error);
}

.countdown-message.warning {
    background: rgba(245, 158, 11, 0.2);
}

/* ===========================================
    20.2 KPI CARDS
    =========================================== */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.kpi-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-4);
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin: 0 0 var(--space-4) 0;
    flex-wrap: wrap;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    box-sizing: border-box;
}

.kpi-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(59, 130, 246, 0.12);
}

.kpi-card.primary {
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
    color: var(--text-white);
    border: none;
}

.kpi-card.primary .kpi-label {
    color: rgba(255, 255, 255, 0.85);
}

.kpi-card.primary .kpi-value {
    color: var(--text-white);
}

.kpi-card.success {
    background: linear-gradient(135deg, var(--success) 0%, #16a34a 100%);
    color: var(--text-white);
    border: none;
}

.kpi-card.success .kpi-label {
    color: rgba(255, 255, 255, 0.85);
}

.kpi-value {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-600);
    line-height: 1;
    display: block;
    margin-bottom: var(--space-2);
}

.kpi-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===========================================
    20.3 HEATMAP
    =========================================== */
.heatmap-grid {
    display: grid;
    grid-template-rows: repeat(7, 1fr);
    grid-auto-flow: column;
    gap: 4px;
    background-color: var(--bg-card);
    padding: var(--space-4);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.heatmap-cell {
    aspect-ratio: 1;
    border-radius: 3px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    cursor: pointer;
    position: relative;
}

.heatmap-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--space-3);
    padding: 0 var(--space-2);
}

.heatmap-cell:hover {
    transform: scale(1.5);
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.heatmap-cell.level-0 {
    background-color: var(--track-empty);
}

.heatmap-cell.level-1 {
    background-color: var(--heat-1);
}

.heatmap-cell.level-2 {
    background-color: var(--heat-2);
}

.heatmap-cell.level-3 {
    background-color: var(--heat-3);
}

.heatmap-cell.level-4 {
    background-color: var(--heat-4);
}

.heatmap-cell.level-5 {
    background-color: var(--heat-5);
}

.heatmap-cell[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--neutral-800);
    color: var(--text-white);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.625rem;
    white-space: nowrap;
    z-index: 9999;
    pointer-events: none;
}

/* Evitar desbordamiento de tooltips en el borde derecho */
.heatmap-cell.tooltip-left[data-tooltip]:hover::after {
    left: auto;
    right: 0;
    transform: translateX(0);
}

.heatmap-legend {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-4);
    justify-content: flex-end;
}

.heatmap-legend-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.heatmap-legend-scale {
    display: flex;
    gap: 2px;
}

.heatmap-legend-cell {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

.heatmap-legend-cell.level-0 { background-color: var(--track-empty); }
.heatmap-legend-cell.level-1 { background-color: var(--heat-1); }
.heatmap-legend-cell.level-2 { background-color: var(--heat-2); }
.heatmap-legend-cell.level-3 { background-color: var(--heat-3); }
.heatmap-legend-cell.level-4 { background-color: var(--heat-4); }
.heatmap-legend-cell.level-5 { background-color: var(--heat-5); }

.heatmap-months {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    font-size: 0.625rem;
    color: var(--text-muted);
}

.heatmap-months span {
    text-align: left;
}

/* ===========================================
    20.4 PROGRESS BREAKDOWN
    =========================================== */
.progress-bars {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.progress-item {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.progress-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
}

.progress-item-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.progress-item-value {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.progress-item-bar {
    height: 8px;
    background-color: var(--neutral-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-item-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-item-fill.draft {
    background: linear-gradient(90deg, #F59E0B 0%, #d97706 100%);
}

.progress-item-fill.read {
    background: linear-gradient(90deg, var(--primary-400) 0%, var(--primary-600) 100%);
}

.progress-item-fill.test {
    background: linear-gradient(90deg, var(--success) 0%, #16a34a 100%);
}

.progress-item-fill.review {
    background: linear-gradient(90deg, var(--cta) 0%, var(--cta-hover) 100%);
}

.progress-item-fill.test3 {
    background: linear-gradient(90deg, var(--success) 0%, #16a34a 100%);
}

/* ===========================================
    20.5 BADGES GRID
    =========================================== */
.badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-4);
}

.badge-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1 / 1;
    padding: var(--space-2);
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-sizing: border-box;
    overflow: hidden;
}

.badge-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(59, 130, 246, 0.12);
}

.badge-item.unlocked {
    border-color: var(--cta);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(245, 158, 11, 0.05) 100%);
}

.badge-item.locked {
    opacity: 0.4;
    filter: grayscale(100%);
}

.badge-item.locked:hover {
    opacity: 0.6;
}

.badge-emoji {
    font-size: 1.5rem;
    margin-bottom: var(--space-1);
}

.badge-title {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.badge-desc {
    font-size: 0.5rem;
    color: var(--text-muted);
    margin-top: var(--space-1);
    line-height: 1.2;
}

/* ===========================================
    20.6 LOADING & EMPTY STATES
    =========================================== */
.app-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.app-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--neutral-200);
    border-top-color: var(--primary-600);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.empty-state {
    text-align: center;
    padding: var(--space-8);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state-text {
    font-size: 1rem;
}

/* ===========================================
    20.7 GLOBAL GRADIENT UTILITIES
    =========================================== */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
}

.bg-gradient-dark {
    background: linear-gradient(135deg, var(--neutral-600) 0%, var(--neutral-900) 100%);
}

.bg-gradient-warning {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success) 0%, #16a34a 100%);
}

.bg-gradient-purple {
    background: linear-gradient(135deg, #8B5CF6 0%, #7c3aed 100%);
}

.dashboard-stats-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

/* ===========================================
    20.8 RESPONSIVE DASHBOARD
    =========================================== */
@media (max-width: 1024px) {
    .dashboard-stats-grid {
        grid-template-columns: 1fr;
    }
}



@media (max-width: 480px) {
    .kpi-row {
        grid-template-columns: 1fr;
    }

    .countdown-exam {
        font-size: 1.25rem;
    }

    .heatmap-grid {
        grid-template-columns: repeat(13, 1fr);
    }
}
/* ===========================================
    UTILITY CLASSES - GRADIENTS
    =========================================== */



.bg-gradient-dark { background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%); }

/* ===========================================
    END OF FILE
    =========================================== */

/* ===========================================
    20.9 DASHBOARD STATS GRID - 33/66 LAYOUT
    =========================================== */


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

/* ===========================================
    20.10 HEATMAP VERTICAL (GitHub Style)
    =========================================== */
.heatmap-grid {
    display: grid;
    grid-template-rows: repeat(7, 1fr);
    grid-auto-flow: column;
    gap: 2px;
}

/* ===========================================
    20.11 LEVEL INFO CONTAINER (Gamificación)
    =========================================== */
#levelInfoContainer {
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    color: white;
    box-shadow: var(--shadow-lg);
}

.level-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.level-badge {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-3);
    font-weight: 700;
    font-size: 1.125rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.level-number {
    font-size: 1.5rem;
}

.level-title {
    font-size: 1.25rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.level-xp {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
}

.xp-current {
    font-weight: 600;
}

.xp-separator {
    color: rgba(255, 255, 255, 0.5);
}

.xp-next {
    color: rgba(255, 255, 255, 0.7);
}

.level-progress-bar {
    height: 8px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.level-progress-fill {
    height: 100%;
    background-color: white;
    border-radius: var(--radius-full);
    transition: width var(--transition-slow) ease-out;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* ===========================================
    20.12 HEATMAP VARIABLES (GitHub Colors)
    =========================================== */
:root {
    --heatmap-0: #ebedf0;
    --heatmap-1: #9be9a8;
    --heatmap-2: #40c463;
    --heatmap-3: #30a14e;
    --heatmap-4: #216e39;
}

/* ===========================================
    20.13 HEATMAP CELL STYLES
    =========================================== */
.heatmap-cell {
    background-color: var(--heatmap-0);
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.9);
    border-radius: 2px;
    cursor: pointer;
    transition: transform 0.15s ease, filter 0.15s ease;
    position: relative;
}

.heatmap-cell:hover {
    transform: scale(1.2);
    filter: brightness(1.1);
    z-index: 10;
}

.heatmap-0 { background-color: var(--heatmap-0); }
.heatmap-1 { background-color: var(--heatmap-1); }
.heatmap-2 { background-color: var(--heatmap-2); }
.heatmap-3 { background-color: var(--heatmap-3); }
.heatmap-4 { background-color: var(--heatmap-4); }

/* ===========================================
    20.14 HEATMAP TOOLTIP
    =========================================== */
.heatmap-tooltip {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-100%);
    background: var(--neutral-800);
    color: var(--text-white);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 100;
}

/* Fix tooltip overflow for last columns */
.heatmap-cell.tooltip-left .heatmap-tooltip {
    left: auto;
    right: 50%;
    transform: translateX(100%);
}

.heatmap-cell:hover .heatmap-tooltip {
    opacity: 1;
}

/* ===========================================
    20.15 HEATMAP LEGEND
    =========================================== */
.heatmap-legend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    justify-content: flex-end;
}

.heatmap-legend-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.heatmap-legend-scale {
    display: flex;
    gap: 2px;
}

.heatmap-legend-cell {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}
.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: var(--space-4);
}

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