/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #f6fbf7;
  --color-surface: #ffffff;
  --color-primary: #146c39;
  --color-primary-dark: #0f5a30;
  --color-secondary: #2f80ed;
  --color-warning: #f2c94c;
  --color-danger: #eb5757;
  --color-text: #1f2933;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-soft: 0 12px 30px rgba(31, 41, 51, 0.08);
  --shadow-hover: 0 20px 40px rgba(31, 41, 51, 0.12);
  --transition-speed: 0.25s;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
}

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

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

button {
  cursor: pointer;
  font-family: inherit;
}

/* Accessibility Focus States */
*:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip Link Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background-color: var(--color-primary);
  color: white;
  padding: 10px 20px;
  z-index: 9999;
  text-decoration: none;
  font-weight: bold;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: top 0.2s ease-in-out;
}

.skip-link:focus {
  top: 0;
}

/* Screen Reader Only (Hidden visually but accessible) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Page Layout */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  border-bottom: none !important;
}

.brand svg {
  flex-shrink: 0;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 24px;
}

.nav-link {
  font-weight: 500;
  color: var(--color-muted);
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
  transition: color var(--transition-speed), border-color var(--transition-speed);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.nav-link.active {
  border-color: var(--color-primary);
  font-weight: 700;
}

/* Tab Routing Container */
.page-container {
  animation: pageFadeIn 0.35s ease-out;
}

.hidden {
  display: none !important;
}

@keyframes pageFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Main Layout Wrapper */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  min-height: 70vh;
}

section {
  scroll-margin-top: 100px;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 8px;
  text-align: center;
  color: var(--color-primary-dark);
}

.section-subtitle {
  color: var(--color-muted);
  text-align: center;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Placeholder warning cards */
.placeholder-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 64px 32px;
  box-shadow: var(--shadow-soft);
  text-align: center;
  max-width: 600px;
  margin: 40px auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border: 1px solid var(--color-border);
}

.placeholder-card svg {
  color: var(--color-muted);
  opacity: 0.7;
  margin-bottom: 8px;
}

.placeholder-card h3 {
  font-size: 1.5rem;
  color: var(--color-text);
}

.placeholder-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  max-width: 440px;
  line-height: 1.5;
}

.placeholder-action {
  margin-top: 16px;
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 40px;
  background: linear-gradient(135deg, #ffffff, #eaf6ee);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-soft);
}

.hero-spaced {
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 32px;
    text-align: center;
  }
  .hero-ctas {
    justify-content: center;
  }
  .hero-bullets {
    align-items: center;
  }
}

.hero-content h1 {
  font-size: 2.75rem;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-muted);
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 9999px;
  border: none;
  transition: all var(--transition-speed);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(31, 143, 77, 0.2);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: #f0fdf4;
  transform: translateY(-2px);
}

.hero-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.hero-bullets span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-bullets span::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: bold;
}

.hero-graphic {
  display: flex;
  justify-content: center;
}

.hero-graphic svg {
  max-width: 100%;
  height: auto;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

/* Feature Cards Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  text-align: center;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

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

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  background-color: #f0fdf4;
  color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* Assessment Form Styles */
.form-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-soft);
  max-width: 800px;
  margin: 0 auto;
}

.form-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.form-group-section {
  border: none;
}

.form-group-section legend {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

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

.input-wrapper {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-wrapper label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.input-wrapper input,
.input-wrapper select {
  padding: 12px 16px;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  color: var(--color-text);
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.input-wrapper input:focus,
.input-wrapper select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31, 143, 77, 0.1);
  outline: none;
}

.input-error {
  border-color: var(--color-danger) !important;
}

.hint {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.form-submit-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

/* Results Dashboard Styles */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 992px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.dashboard-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
}

/* Eco Score Circle Meter */
.eco-score-card {
  align-items: center;
  text-align: center;
}

.eco-score-svg-wrapper {
  position: relative;
  width: 180px;
  height: 180px;
  margin-bottom: 20px;
}

.eco-score-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  pointer-events: none;
}

.eco-score-circle-bg {
  stroke: var(--color-border);
}

.eco-score-circle-fill {
  stroke-dasharray: 440;
  stroke-dashoffset: 440;
  transition: stroke-dashoffset 1s cubic-bezier(0.4, 0, 0.2, 1), stroke 0.3s;
}

.eco-score-text-val {
  font-family: inherit;
  font-weight: 800;
  font-size: 32px;
}

.eco-score-text-lbl {
  font-family: inherit;
  font-weight: 500;
  font-size: 14px;
}

#eco-score-label {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

#eco-score-desc {
  font-size: 0.95rem;
  color: var(--color-muted);
}

/* Summary stats */
.footprint-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: 100%;
  margin-top: 24px;
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
}

.summary-stat-box {
  background-color: #f8fafc;
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.summary-stat-box span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
}

.summary-stat-box h4 {
  font-size: 1.5rem;
  color: var(--color-text);
  margin-top: 4px;
}

.biggest-contributor-box {
  grid-column: span 2;
  background-color: #fffbeb;
  border: 1px solid #fef3c7;
}

.highlight-category {
  font-weight: 700;
  text-transform: uppercase;
}

.highlight-category.electricity { color: var(--color-primary-dark); }
.highlight-category.transport { color: var(--color-secondary); }
.highlight-category.food { color: var(--color-primary); }
.highlight-category.waste { color: var(--color-warning); }
.highlight-category.shopping { color: var(--color-danger); }

/* Category breakdown bars CSS */
.breakdown-card h3 {
  font-size: 1.25rem;
  margin-bottom: 24px;
}

#category-bars-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.bar-row {
  display: grid;
  grid-template-columns: 110px 1fr 110px;
  align-items: center;
  gap: 16px;
}

@media (max-width: 576px) {
  .bar-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .bar-value {
    text-align: left !important;
  }
}

.bar-label-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.9rem;
}

.bar-label-wrap svg {
  flex-shrink: 0;
  color: var(--color-muted);
}

.bar-track {
  height: 12px;
  background-color: #e2e8f0;
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  background-color: var(--color-secondary);
  border-radius: 9999px;
  width: 0%;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.bar-fill.bar-highest {
  background-color: var(--color-primary);
}

.bar-value {
  text-align: right;
  font-size: 0.9rem;
  color: var(--color-text);
}

/* Action Plan & Recommendations */
.action-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.action-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-soft);
  border-left: 6px solid var(--color-muted);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

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

/* Category card left borders */
.action-card.electricity { border-left-color: var(--color-warning); }
.action-card.transport { border-left-color: var(--color-secondary); }
.action-card.food { border-left-color: var(--color-primary); }
.action-card.waste { border-left-color: #a855f7; }
.action-card.shopping { border-left-color: var(--color-danger); }
.action-card.flights { border-left-color: #f97316; }

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

.action-category {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.action-category svg {
  width: 16px;
  height: 16px;
}

.action-badges {
  display: flex;
  gap: 6px;
}

.badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 9999px;
  font-weight: 600;
  text-transform: capitalize;
}

.badge.diff-easy { background-color: #ecfdf5; color: var(--color-primary); }
.badge.diff-medium { background-color: #fffbeb; color: #d97706; }
.badge.diff-hard { background-color: #fef2f2; color: var(--color-danger); }

.badge.cost-free { background-color: #eff6ff; color: var(--color-secondary); }
.badge.cost-low { background-color: #f5f3ff; color: #7c3aed; }

.action-title {
  font-size: 1.15rem;
  color: var(--color-text);
}

.action-description {
  font-size: 0.9rem;
  color: var(--color-muted);
  flex-grow: 1;
}

.action-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.action-saving {
  font-weight: 700;
  color: var(--color-primary-dark);
  font-size: 0.95rem;
}

/* Custom Checkbox Design */
.checkbox-container {
  display: flex;
  align-items: center;
  position: relative;
  padding-left: 28px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  user-select: none;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 20px;
  width: 20px;
  background-color: #e2e8f0;
  border-radius: 4px;
  transition: background-color var(--transition-speed);
}

.checkbox-container:hover input ~ .checkmark {
  background-color: #cbd5e1;
}

.checkbox-container input:checked ~ .checkmark {
  background-color: var(--color-primary);
}

.checkmark::after {
  content: "";
  position: absolute;
  display: none;
  left: 7px;
  top: 3px;
  width: 6px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark::after {
  display: block;
}

.action-card.completed {
  background-color: #f0fdf4;
  border-color: var(--color-primary);
}

/* Tracker styling */
.tracker-status-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-soft);
  max-width: 600px;
  margin: 0 auto;
}

.tracker-status-spaced {
  margin-bottom: 32px;
}

.tracker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.tracker-title {
  font-weight: 700;
  font-size: 1.1rem;
}

#tracker-progress-percentage {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
}

.tracker-progress-bar-track {
  height: 14px;
  background-color: #cbd5e1;
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 12px;
}

.tracker-progress-bar-fill {
  height: 100%;
  background-color: var(--color-primary);
  width: 0%;
  transition: width 0.5s ease;
}

#tracker-status-text {
  font-size: 0.9rem;
  color: var(--color-muted);
  text-align: center;
}

/* What-if Simulator Styles */
.simulator-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-soft);
}

@media (max-width: 992px) {
  .simulator-layout {
    grid-template-columns: 1fr;
  }
}

.simulator-controls {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sim-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sim-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sim-label-row label {
  font-weight: 600;
  font-size: 0.95rem;
}

.sim-label-row span {
  font-weight: 700;
  color: var(--color-secondary);
}

.sim-input-control {
  padding: 10px 14px;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: #ffffff;
}

/* Styled Range Sliders */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 9999px;
  background: #e2e8f0;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-secondary);
  cursor: pointer;
  transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.sim-btn-row {
  display: flex;
  gap: 12px;
}

.sim-calculate-action {
  flex-grow: 2;
}

.sim-reset-action {
  flex-grow: 1;
}

.simulator-results {
  background-color: #f8fafc;
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sim-metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.sim-metric-box {
  background-color: #ffffff;
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  text-align: center;
}

.sim-metric-box span {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-muted);
}

.sim-metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-top: 4px;
}

.sim-savings-box {
  background-color: #f0fdf4;
  border-color: #dcfce7;
}

.sim-new-summary {
  background-color: #ffffff;
  padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sim-new-summary h3 {
  font-size: 0.95rem;
  color: var(--color-muted);
}

.sim-new-summary .sim-summary-metrics {
  text-align: right;
}

.sim-new-summary p {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.sim-score-value {
  font-weight: 800;
}

.sim-score-value.score-excellent { color: var(--color-primary); }
.sim-score-value.score-good { color: var(--color-secondary); }
.sim-score-value.score-warning { color: #d97706; }
.sim-score-value.score-danger { color: var(--color-danger); }

/* Simulator comparative chart styling */
#sim-comparative-chart {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sim-chart-bar-row {
  display: grid;
  grid-template-columns: 100px 1fr 70px;
  align-items: center;
  gap: 12px;
}

.sim-bar-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-muted);
}

.sim-bar-track {
  height: 10px;
  background-color: #cbd5e1;
  border-radius: 9999px;
  overflow: hidden;
}

.sim-bar-fill {
  height: 100%;
  border-radius: 9999px;
}

.sim-bar-fill.base {
  background-color: #94a3b8;
}

.sim-bar-fill.improved {
  background-color: var(--color-primary);
}

.sim-bar-value {
  font-size: 0.8rem;
  font-weight: 700;
  text-align: right;
}

/* Shared Chat History Container Styles */
.chat-history-container {
  height: 380px; /* Constrains height to make it scrollable */
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px;
  background-color: #ffffff;
  scroll-behavior: smooth;
}

/* Chat Layout Styles (Full Page) */
.chat-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 32px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  height: 520px; /* Constrains the entire widget wrapper */
}

@media (max-width: 992px) {
  .chat-layout {
    grid-template-columns: 1fr;
    height: 700px;
  }
  .chat-sidebar {
    border-right: none !important;
    border-bottom: 1px solid var(--color-border);
    padding: 20px !important;
  }
}

.chat-sidebar {
  padding: 32px;
  border-right: 1px solid var(--color-border);
  background-color: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 24px;
  overflow-y: auto;
}

.chat-sidebar-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
}

.chat-sidebar-intro h3 {
  font-size: 1.15rem;
}

.chat-sidebar-intro p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.quick-prompts-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quick-prompt-btn {
  text-align: left;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: all var(--transition-speed);
}

.quick-prompt-btn:hover {
  background-color: #f0fdf4;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.chat-main {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.chat-message {
  display: flex;
  gap: 16px;
  max-width: 85%;
  align-items: flex-start;
}

.chat-message.user-message {
  margin-left: auto;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f1f5f9;
  flex-shrink: 0;
}

.chat-avatar.user {
  background-color: #eff6ff;
  color: var(--color-secondary);
}

.message-bubble {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  line-height: 1.5;
}

.terra-message .message-bubble {
  background-color: #f0fdf4;
  color: var(--color-text);
  border-top-left-radius: 4px;
  border: 1px solid #dcfce7;
}

.user-message .message-bubble {
  background-color: #f1f5f9;
  color: var(--color-text);
  border-top-right-radius: 4px;
  border: 1px solid #e2e8f0;
}

/* Chat bubble interior markdown styles */
.message-bubble strong {
  font-weight: 700;
  color: var(--color-text);
}

.message-bubble em {
  font-style: italic;
  opacity: 0.95;
}

.chat-header-styled {
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
  border-bottom: 1.5px solid rgba(31, 143, 77, 0.1);
  padding-bottom: 4px;
}

.label-bold {
  font-weight: 700;
  display: block;
  margin-top: 10px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.label-bold.obs { color: var(--color-secondary); }
.label-bold.rsn { color: #b45309; }
.label-bold.act { color: var(--color-primary-dark); }
.label-bold.imp { color: #7c3aed; }
.label-bold.enc { color: var(--color-text); }

.message-bubble p {
  margin-bottom: 10px;
}
.message-bubble p:last-child {
  margin-bottom: 0;
}
.message-bubble ul {
  margin-left: 20px;
  margin-bottom: 10px;
}
.message-bubble li {
  margin-bottom: 4px;
}

.chat-input-row {
  padding: 16px 24px;
  background-color: #f8fafc;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.chat-input-row form {
  display: flex;
  gap: 12px;
}

.chat-input-row input {
  flex-grow: 1;
  padding: 12px 20px;
  font-size: 0.95rem;
  border-radius: 9999px;
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  transition: border-color var(--transition-speed);
}

.chat-input-row input:focus {
  border-color: var(--color-primary);
  outline: none;
}

.chat-send-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background-color: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-speed);
}

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

/* Floating site-wide chat window popup */
.floating-chat-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  font-family: inherit;
}

.chat-launcher-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  border-radius: 9999px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(31, 143, 77, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.chat-launcher-btn:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(31, 143, 77, 0.4);
}

.chat-launcher-btn svg {
  flex-shrink: 0;
  border-radius: 50%;
}

.chat-popup-card {
  position: absolute;
  bottom: 64px;
  right: 0;
  width: 380px;
  height: 480px;
  max-width: calc(100vw - 48px);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.16);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: opacity 0.3s, transform 0.3s;
  transform-origin: bottom right;
}

.chat-popup-card.hidden {
  display: none !important;
  opacity: 0;
  transform: scale(0.9);
  pointer-events: none;
}

.chat-popup-header {
  background-color: #f0fdf4;
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.chat-popup-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-popup-brand svg {
  border-radius: 50%;
  flex-shrink: 0;
}

.chat-popup-brand h4 {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 700;
}

.chat-popup-brand .online-status {
  font-size: 0.75rem;
  color: var(--color-primary);
  display: block;
  font-weight: 500;
}

.chat-close-btn {
  background: none;
  border: none;
  color: var(--color-muted);
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: color var(--transition-speed);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.chat-close-btn:hover {
  color: var(--color-danger);
  background-color: rgba(0, 0, 0, 0.05);
}

.chat-popup-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-popup-quick-prompts {
  display: flex;
  gap: 8px;
  padding: 8px 12px;
  overflow-x: auto;
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  scrollbar-width: none;
}

.chat-popup-quick-prompts::-webkit-scrollbar {
  display: none;
}

.quick-prompt-btn-mini {
  white-space: nowrap;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 9999px;
  border: 1px solid var(--color-primary);
  background-color: #ffffff;
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-speed);
}

.quick-prompt-btn-mini:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

.chat-popup-card .chat-history-container {
  height: 100%; /* Spans the body */
  padding: 16px;
}

.chat-popup-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  background-color: #f8fafc;
  flex-shrink: 0;
}

.chat-form-element {
  display: flex;
  gap: 8px;
  align-items: center;
}

.chat-text-input {
  flex-grow: 1;
  padding: 8px 16px;
  font-size: 0.9rem;
  border-radius: 9999px;
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  outline: none;
}

.chat-text-input:focus {
  border-color: var(--color-primary);
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background-color: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-speed);
  flex-shrink: 0;
}

/* About / Methodology Section */
.methodology-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-soft);
}

.methodology-intro {
  margin-bottom: 24px;
}

.methodology-intro p {
  font-size: 0.95rem;
  color: var(--color-muted);
}

.table-wrapper {
  overflow-x: auto;
  margin-bottom: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.factor-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.factor-table th, 
.factor-table td {
  padding: 14px 20px;
}

.factor-table th {
  background-color: #f8fafc;
  font-weight: 700;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.factor-table tr {
  border-bottom: 1px solid var(--color-border);
}

.factor-table tr:last-child {
  border-bottom: none;
}

.methodology-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}

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

.methodology-notes h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--color-primary-dark);
}

.methodology-notes p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Reset Footer Action Section */
.reset-data-container {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.btn-reset {
  background-color: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 9999px;
  transition: all var(--transition-speed);
}

.btn-reset:hover {
  background-color: #fef2f2;
  color: #b91c1c;
}

/* Footer Section */
footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.85rem;
}

footer p {
  max-width: 600px;
  margin: 0 auto 12px;
}

.privacy-notice {
  font-weight: 600;
  color: var(--color-primary-dark);
}

.footer-copyright {
  margin-top: 15px;
}

.footer-links {
  margin-top: 10px;
}

.footer-links a {
  color: var(--color-muted);
  text-decoration: none;
  font-weight: 600;
  margin: 0 8px;
  transition: color var(--transition-speed);
}

.footer-links a:hover,
.footer-links a.active {
  color: var(--color-primary);
}

/* Legal Cards Styling */
.legal-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-soft);
}

.legal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 24px;
}

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

.legal-section h3 {
  color: var(--color-primary-dark);
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.legal-section p,
.legal-section li {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.legal-section ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.legal-section a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.legal-section a:hover {
  text-decoration: underline;
}

.creator-details {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

/* Home Page Educational & CTA Sections */
.home-info-section {
  margin-top: 50px;
  margin-bottom: 50px;
}

.info-section-title {
  font-size: 2rem;
  color: var(--color-primary-dark);
  margin-bottom: 16px;
}

.info-section-title.centered {
  text-align: center;
}

.info-subtitle.centered {
  text-align: center;
  margin-top: -8px;
  margin-bottom: 32px;
  color: var(--color-muted);
  font-size: 1rem;
}

.info-card.highlight-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-soft);
  border-left: 5px solid var(--color-primary);
}

.info-text {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 16px;
}

.info-text:last-child {
  margin-bottom: 0;
}

/* Science Grid Layout */
.science-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.science-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

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

.science-icon-wrapper {
  width: 48px;
  height: 48px;
  background-color: #EAFBF0;
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.science-card h3 {
  font-size: 1.2rem;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.science-card p {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* Glossary Grid Layout */
.glossary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

.glossary-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--color-border);
}

.glossary-card h3 {
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
  border-bottom: 2px solid #EAFBF0;
  padding-bottom: 8px;
}

.glossary-card p, 
.glossary-card li {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.glossary-card ul {
  padding-left: 20px;
  margin-top: 10px;
}

.glossary-card li {
  margin-bottom: 8px;
}

/* Call to Action Banner */
.home-cta-section {
  margin-top: 60px;
  margin-bottom: 40px;
}

.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: white;
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  text-align: center;
  box-shadow: var(--shadow-hover);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-banner-title {
  font-size: 2.25rem;
  margin-bottom: 16px;
  font-weight: 700;
  color: white;
}

.cta-banner-text {
  font-size: 1.15rem;
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 30px;
  opacity: 0.95;
}

.cta-btn {
  background-color: white !important;
  color: var(--color-primary-dark) !important;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 9999px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  display: inline-block;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed) !important;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  background-color: #f6fbf7 !important;
}