/* ============================================
   Mini Hippo - Lesson Pages UI/UX Stylesheet
   Modern Design for Learning Pages
   ============================================ */

:root {
  /* Lesson-specific colors */
  --lesson-bg: #f8fafc;
  --lesson-card-bg: #ffffff;
  --lesson-border: #e2e8f0;
  --lesson-primary: #2563eb;
  --lesson-success: #10b981;
  --lesson-error: #ef4444;
  --lesson-warning: #f59e0b;
  --lesson-text: #1e293b;
  --lesson-text-light: #64748b;
}

/* ============================================
   Base Layout Fixes
   ============================================ */

body {
  margin: 0 !important;
  padding: 0 !important;
  min-height: 100vh !important;
  background: var(--lesson-bg) !important;
  padding-bottom: 80px !important; /* Space for fixed footer */
}

html {
  margin: 0 !important;
  padding: 0 !important;
}

/* ============================================
   Header Improvements (for key pages)
   ============================================ */

.header {
  background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%) !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border-bottom: none;
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  animation: slideDown 0.3s ease-out;
}

/* Ensure all text in header is white with good contrast */
.header,
.header *,
.header a,
.header span,
.header i,
.header div {
  color: #ffffff !important;
}

.header a:hover {
  color: #e0e7ff !important;
  opacity: 0.9;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.header a {
  transition: all 0.2s ease;
}

.header a:hover {
  opacity: 0.9;
  transform: translateX(-2px);
}

.header .fw-bold {
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #ffffff !important;
}

/* ============================================
   Countdown Timer Highlight
   ============================================ */

.countdown,
#countdownTimer {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: #1e293b !important;
  font-weight: 700 !important;
  font-size: 1.5rem !important;
  padding: 0.5rem 1.25rem;
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
  text-shadow: none;
  display: inline-block;
  animation: pulse-glow 2s ease-in-out infinite;
  border: 2px solid #ffffff;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1), 0 0 0 0 rgba(251, 191, 36, 0.7);
  }
  50% {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1), 0 0 0 8px rgba(251, 191, 36, 0);
  }
}

/* Time remaining label */
.time-remaining-label {
  color: #ffffff !important;
  font-weight: 600;
  margin-right: 0.75rem;
}

/* Question step indicator */
#question_step {
  background: rgba(255, 255, 255, 0.15);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff !important;
  font-weight: 600;
}

/* ============================================
   Container & Content Improvements
   ============================================ */

.container {
  animation: fadeInUp 0.5s ease-out;
}

.container.mt-5,
.container.mt-4 {
  background: var(--lesson-card-bg);
  border-radius: 0.75rem;
  padding: 2rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  margin-bottom: 2rem;
  border: 1px solid var(--lesson-border);
  transition: all 0.3s ease;
}

.container.mt-5:hover,
.container.mt-4:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  transform: translateY(-2px);
}

/* ============================================
   Typography Improvements
   ============================================ */

h1, h2, h3, h4, h5 {
  color: var(--lesson-text);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

h1.text-center {
  background: linear-gradient(135deg, var(--lesson-primary) 0%, #0ea5e9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.75rem;
  position: relative;
  padding-bottom: 0.5rem;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--lesson-primary), #0ea5e9);
  border-radius: 2px;
}

h5 {
  color: var(--lesson-text-light);
  font-weight: 500;
  line-height: 1.6;
}

/* ============================================
   Form & Question Improvements
   ============================================ */

form {
  background: var(--lesson-card-bg);
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--lesson-border);
}

.form-control,
.form-select {
  border-radius: 0.5rem;
  border: 2px solid var(--lesson-border);
  padding: 0.75rem 1rem;
  transition: all 0.2s ease;
  font-size: 1rem;
}

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

.form-label {
  font-weight: 500;
  color: var(--lesson-text);
  margin-bottom: 0.5rem;
}

/* ============================================
   Table Improvements
   ============================================ */

.table {
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.table thead {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

.table thead th {
  color: white;
  font-weight: 600;
  padding: 1rem;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  border: none;
}

.table tbody tr {
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--lesson-border);
}

.table tbody tr:hover {
  background-color: #f8fafc;
  transform: scale(1.01);
}

.table tbody td {
  padding: 1rem;
  vertical-align: middle;
}

.table-bordered {
  border: 1px solid var(--lesson-border);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: #f8fafc;
}

/* Result indicators */
.table tbody tr td:last-child {
  font-weight: 600;
}

/* ============================================
   Button Improvements for Lessons
   ============================================ */

.btn-outline-primary {
  border: 2px solid var(--lesson-primary);
  color: var(--lesson-primary);
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  font-weight: 500;
  transition: all 0.2s ease;
  background: transparent;
}

.btn-outline-primary:hover {
  background: var(--lesson-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.3);
}

.btn-outline-primary.btn-active {
  background: var(--lesson-primary);
  color: white;
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.3);
}

.btn-primary,
.btn-success,
.btn-danger,
.btn-warning,
.btn-info {
  border-radius: 0.75rem;
  padding: 0.875rem 1.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.btn-primary::before,
.btn-success::before,
.btn-danger::before,
.btn-warning::before,
.btn-info::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before,
.btn-success:hover::before,
.btn-danger:hover::before,
.btn-warning:hover::before,
.btn-info:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary:hover,
.btn-success:hover,
.btn-danger:hover,
.btn-warning:hover,
.btn-info:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.btn-primary {
  background: linear-gradient(135deg, var(--lesson-primary) 0%, #1d4ed8 100%);
}

.btn-success {
  background: linear-gradient(135deg, var(--lesson-success) 0%, #059669 100%);
}

.btn-danger {
  background: linear-gradient(135deg, var(--lesson-error) 0%, #dc2626 100%);
}

.btn-warning {
  background: linear-gradient(135deg, var(--lesson-warning) 0%, #d97706 100%);
}

.btn-info {
  background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

/* ============================================
   Score Display
   ============================================ */

.text-primary {
  color: var(--lesson-primary) !important;
  font-weight: 600;
  font-size: 1.25rem;
}

#totalScore,
#scoreClassification {
  background: linear-gradient(135deg, var(--lesson-primary) 0%, #0ea5e9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  margin: 1rem 0;
}

/* ============================================
   Navigation Buttons (Question Navigation)
   ============================================ */

#result_navigation {
  background: var(--lesson-card-bg);
  padding: 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
  animation: fadeInUp 0.5s ease-out;
}

#result_navigation .d-flex {
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

/* ============================================
   Drag & Drop Improvements
   ============================================ */

.slot {
  border: 2px dashed var(--lesson-border);
  border-radius: 0.5rem;
  min-height: 60px;
  padding: 1rem;
  margin-bottom: 1rem;
  background-color: var(--lesson-card-bg);
  transition: all 0.3s ease;
  position: relative;
}

.slot:hover {
  border-color: var(--lesson-primary);
  background-color: #f0f9ff;
}

.slot.drag-over {
  border-color: var(--lesson-primary);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(14, 165, 233, 0.1) 100%);
  transform: scale(1.02);
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.draggable-item {
  cursor: grab;
  padding: 0.75rem 1rem;
  background: white;
  border: 2px solid var(--lesson-border);
  border-radius: 0.5rem;
  margin: 0.5rem;
  transition: all 0.2s ease;
  display: inline-block;
}

/* Cards Container for Reading Question 2 & 3 - Single column layout */
#cardsContainer {
  display: flex !important;
  flex-direction: column !important;
  width: 100% !important;
  max-width: 100% !important;
}

#cardsContainer .card,
#cardsContainer .draggable-item {
  width: 100% !important;
  max-width: 100% !important;
  display: block !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  margin-bottom: 0.75rem !important;
}

.draggable-item:hover {
  border-color: var(--lesson-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.draggable-item:active {
  cursor: grabbing;
  transform: scale(0.98);
}

/* ============================================
   Result Container
   ============================================ */

#resultContainer_question1,
#resultContainer_question2,
#resultContainer_question3,
#resultContainer_question4,
#resultContainer_question5,
#resultContainer_question6 {
  animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   Question Info Section
   ============================================ */

#questionInfo {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  padding: 1.5rem;
  border-radius: 0.75rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--lesson-primary);
}

/* ============================================
   Practice Page Buttons (Part 1, Part 2, etc.)
   ============================================ */

.col-md-3.mb-4 {
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.col-md-3.mb-4:nth-child(1) { animation-delay: 0.1s; }
.col-md-3.mb-4:nth-child(2) { animation-delay: 0.2s; }
.col-md-3.mb-4:nth-child(3) { animation-delay: 0.3s; }
.col-md-3.mb-4:nth-child(4) { animation-delay: 0.4s; }

.col-md-3.mb-4 .btn {
  min-height: 120px;
  flex-direction: column;
  gap: 0.75rem;
  border-radius: 1rem;
  font-size: 1.25rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.col-md-3.mb-4 .btn .bi {
  font-size: 2.5rem;
  transition: transform 0.3s ease;
}

.col-md-3.mb-4 .btn:hover .bi {
  transform: scale(1.15) rotate(5deg);
}

/* ============================================
   Footer Improvements
   ============================================ */

.footer {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%) !important;
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1), 0 -2px 4px -1px rgba(0, 0, 0, 0.06) !important;
  border-top: none !important;
  padding: 1rem 1.5rem !important;
  position: fixed !important;
  bottom: 0 !important;
  left: 0 !important;
  width: 100% !important;
  z-index: 999 !important;
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
}

.footer .btn {
  border-radius: 0.5rem !important;
  font-weight: 600 !important;
  padding: 0.75rem 1.5rem !important;
  font-size: 1rem !important;
  transition: all 0.2s ease !important;
  border: none !important;
  color: white !important;
}

.footer .btn:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2) !important;
  opacity: 0.9 !important;
}

.footer .btn-back {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%) !important;
  color: #1e293b !important;
}

.footer .btn-check-result {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%) !important;
  color: white !important;
}

.footer .btn-next {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
  color: white !important;
}

.footer .btn:disabled {
  background: #6b7280 !important;
  color: white !important;
  opacity: 0.6 !important;
  cursor: not-allowed !important;
}

/* Ensure content doesn't overlap with fixed footer */
#question1,
#question2,
#question3,
#question4,
#question5,
.container.py-5 {
  padding-bottom: 100px !important;
  margin-bottom: 0 !important;
}

/* ============================================
   Responsive Improvements
   ============================================ */

@media (max-width: 768px) {
  .container.mt-5,
  .container.mt-4 {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }

  h1.text-center {
    font-size: 2rem;
  }

  .table {
    font-size: 0.875rem;
  }

  .table thead th,
  .table tbody td {
    padding: 0.75rem 0.5rem;
  }

  .col-md-3.mb-4 .btn {
    min-height: 100px;
    font-size: 1rem;
  }

  .col-md-3.mb-4 .btn .bi {
    font-size: 2rem;
  }
}

/* ============================================
   Loading States
   ============================================ */

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ============================================
   Focus States (Accessibility)
   ============================================ */

.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible {
  outline: 2px solid var(--lesson-primary);
  outline-offset: 2px;
}

/* ============================================
   Smooth Transitions
   ============================================ */

* {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

/* ============================================
   Card-like Containers
   ============================================ */

.container-fluid {
  background: var(--lesson-bg);
  min-height: auto;
  padding: 1rem 0;
}

#content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}

/* Remove excessive whitespace */
.app-main {
  min-height: auto;
}

.app-content-header {
  padding: 1rem 0;
  margin-bottom: 0;
}

.container.my-4 {
  margin-top: 1rem !important;
  margin-bottom: 1rem !important;
  padding: 1.5rem;
}

/* ============================================
   Question Step Indicator
   ============================================ */

#question_step {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  backdrop-filter: blur(10px);
}