/* Hagase Real Estate - RE Exam Prep Platform */
@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,100;1,300;1,400;1,700;1,900&display=swap');

:root {
  /* Hagase Real Estate Colors */
  --primary: #b91c1c;
  --primary-dark: #991b1b;
  --primary-light: #dc2626;
  --accent: #ba2030;
  
  /* Gold accents for achievements */
  --gold: #f59e0b;
  --gold-light: #fbbf24;
  --gold-dark: #d97706;
  
  /* Light theme backgrounds */
  --bg: #f5f5f5;
  --bg-white: #ffffff;
  --bg-card: #ffffff;
  --bg-section: #fafafa;
  
  /* Text colors */
  --text: #1f2937;
  --text-muted: #667085;
  --text-light: #9ca3af;
  
  /* Status colors */
  --success: #10b981;
  --success-light: #d1fae5;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --info: #3b82f6;
  --info-light: #dbeafe;
  
  /* Borders and shadows */
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition: all 0.2s ease-in-out;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

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

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-fluid {
  width: 100%;
  padding: 0 1rem;
}

/* Navigation */
.navbar {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  font-family: 'Poppins', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: var(--transition);
}

.nav-link:hover {
  background-color: var(--bg-section);
  color: var(--primary);
}

.nav-link.active {
  background-color: var(--primary);
  color: white;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  gap: 0.5rem;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: white;
}

.btn-secondary {
  background-color: var(--bg-white);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background-color: var(--bg-section);
}

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

.btn-success:hover {
  background-color: #059669;
}

.btn-danger {
  background-color: var(--danger);
  color: white;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-warning {
  background-color: var(--gold);
  color: white;
}

.btn-warning:hover {
  background-color: var(--gold-dark);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: white;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.btn-block {
  width: 100%;
  display: flex;
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

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

.card-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
  background-color: var(--bg-section);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  background-color: var(--bg-section);
}

.card-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.card-text {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Grid system */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: -0.5rem;
}

.col {
  flex: 1;
  padding: 0.5rem;
}

.col-12 { width: 100%; }
.col-6 { width: 50%; }
.col-4 { width: 33.333%; }
.col-3 { width: 25%; }
.col-2 { width: 16.667%; }

@media (max-width: 768px) {
  .col-md-12 { width: 100% !important; }
  .col-sm-12 { width: 100% !important; }
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

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

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 0.875rem;
  transition: var(--transition);
  background-color: var(--bg-white);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgb(185 28 28 / 0.1);
}

.form-control:invalid {
  border-color: var(--danger);
}

.form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.form-check-input {
  width: 1.125rem;
  height: 1.125rem;
  margin: 0;
}

.form-check-label {
  margin: 0;
  cursor: pointer;
}

/* Alerts */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid;
}

.alert-success {
  background-color: var(--success-light);
  color: var(--success);
  border-color: var(--success);
}

.alert-danger {
  background-color: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger);
}

.alert-warning {
  background-color: var(--warning-light);
  color: var(--warning);
  border-color: var(--warning);
}

.alert-info {
  background-color: var(--info-light);
  color: var(--info);
  border-color: var(--info);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  border-radius: 9999px;
}

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

.badge-danger {
  background-color: var(--danger);
  color: white;
}

.badge-warning {
  background-color: var(--gold);
  color: white;
}

.badge-primary {
  background-color: var(--primary);
  color: white;
}

.badge-secondary {
  background-color: var(--text-light);
  color: white;
}

/* Progress bars */
.progress {
  width: 100%;
  height: 0.75rem;
  background-color: var(--border-light);
  border-radius: 9999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary);
  transition: width 0.3s ease-in-out;
  border-radius: 9999px;
}

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

.progress-bar-warning {
  background-color: var(--gold);
}

.progress-bar-danger {
  background-color: var(--danger);
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.table th,
.table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.table th {
  font-weight: 600;
  color: var(--text);
  background-color: var(--bg-section);
}

.table tr:hover {
  background-color: var(--bg-section);
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.show {
  display: flex;
}

.modal-dialog {
  background-color: var(--bg-white);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

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

.text-muted { color: var(--text-muted); }
.text-light { color: var(--text-light); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--gold); }

.bg-primary { background-color: var(--primary); }
.bg-success { background-color: var(--success); }
.bg-danger { background-color: var(--danger); }
.bg-warning { background-color: var(--gold); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

/* Hero section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Stats cards */
.stat-card {
  text-align: center;
  padding: 1.5rem;
  border-radius: 0.75rem;
  background-color: var(--bg-white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
  font-family: 'Poppins', sans-serif;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.5rem;
}

/* Practice mode cards */
.practice-card {
  background-color: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  box-shadow: var(--shadow);
}

.practice-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--primary);
}

.practice-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.practice-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.practice-description {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Exam interface */
.exam-header {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 10;
}

.exam-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.timer {
  font-family: 'Poppins', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  background-color: var(--bg-section);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
}

.timer.warning {
  color: var(--danger);
  background-color: var(--danger-light);
}

.question-container {
  background-color: var(--bg-white);
  border-radius: 0.75rem;
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: var(--shadow);
}

.question-number {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.question-text {
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.answer-option {
  background-color: var(--bg-section);
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem 1.5rem;
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.answer-option:hover {
  border-color: var(--primary);
  background-color: rgba(185, 28, 28, 0.05);
}

.answer-option.selected {
  border-color: var(--primary);
  background-color: rgba(185, 28, 28, 0.1);
  color: var(--primary);
}

.answer-option.correct {
  border-color: var(--success);
  background-color: var(--success-light);
  color: var(--success);
}

.answer-option.incorrect {
  border-color: var(--danger);
  background-color: var(--danger-light);
  color: var(--danger);
}

.option-letter {
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
  min-width: 1.5rem;
}

/* Results page */
.score-display {
  text-align: center;
  background-color: var(--bg-white);
  padding: 3rem 2rem;
  border-radius: 0.75rem;
  box-shadow: var(--shadow-lg);
  margin-bottom: 2rem;
}

.score-number {
  font-size: 4rem;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  margin-bottom: 0.5rem;
}

.score-number.pass {
  color: var(--success);
}

.score-number.fail {
  color: var(--danger);
}

.score-label {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.pass-badge {
  font-size: 1.5rem;
  font-weight: 700;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pass-badge.pass {
  background-color: var(--success);
  color: white;
}

.pass-badge.fail {
  background-color: var(--danger);
  color: white;
}

/* Chapter breakdown chart */
.chart-container {
  background-color: var(--bg-white);
  padding: 1.5rem;
  border-radius: 0.75rem;
  box-shadow: var(--shadow);
}

.chart-bar {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
}

.chart-label {
  min-width: 150px;
  font-size: 0.875rem;
  color: var(--text);
}

.chart-progress {
  flex: 1;
  height: 1.5rem;
  background-color: var(--border-light);
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.chart-fill {
  height: 100%;
  background-color: var(--primary);
  border-radius: 9999px;
  transition: width 0.3s ease-in-out;
}

.chart-fill.excellent {
  background-color: var(--success);
}

.chart-fill.good {
  background-color: var(--gold);
}

.chart-fill.poor {
  background-color: var(--danger);
}

.chart-value {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75rem;
  font-weight: 600;
  color: white;
}

/* Certificate styles */
.certificate-preview {
  background-color: var(--bg-white);
  border: 3px solid var(--gold);
  border-radius: 0.75rem;
  padding: 3rem;
  text-align: center;
  margin: 2rem 0;
  position: relative;
  box-shadow: var(--shadow-xl);
}

.certificate-preview::before {
  content: '';
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  border: 2px solid var(--gold-light);
  border-radius: 0.5rem;
}

.certificate-title {
  font-size: 2.5rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 1rem;
  font-family: 'Poppins', sans-serif;
}

.certificate-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.certificate-name {
  font-size: 1.75rem;
  color: var(--text);
  font-weight: 600;
  margin: 1rem 0;
  font-family: 'Poppins', sans-serif;
}

.certificate-details {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

/* Upload area */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: 0.75rem;
  padding: 3rem 2rem;
  text-align: center;
  background-color: var(--bg-section);
  transition: var(--transition);
  cursor: pointer;
}

.upload-area:hover {
  border-color: var(--primary);
  background-color: rgba(185, 28, 28, 0.05);
}

.upload-area.dragover {
  border-color: var(--primary);
  background-color: rgba(185, 28, 28, 0.1);
}

.upload-icon {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.upload-text {
  font-size: 1.125rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.upload-subtext {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Responsive design */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .container {
    padding: 0 0.75rem;
  }
  
  .nav-links {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .row {
    margin: -0.25rem;
  }
  
  .col {
    padding: 0.25rem;
  }
  
  .col-sm-12 {
    width: 100%;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .question-container {
    padding: 1.5rem;
    margin: 1rem 0;
  }
  
  .score-display {
    padding: 2rem 1rem;
  }
  
  .score-number {
    font-size: 3rem;
  }
  
  .certificate-preview {
    padding: 2rem 1rem;
  }
  
  .certificate-title {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .btn {
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .practice-card {
    padding: 1rem;
  }
  
  .practice-icon {
    font-size: 2rem;
  }
  
  .answer-option {
    padding: 0.75rem 1rem;
  }
}