/* ===== Scheme of Learning - Matching Lesson Planner Style ===== */

:root {
  --sol-primary: #0d9488;
  --sol-primary-dark: #0f766e;
  --sol-primary-light: #ccfbf1;
  --sol-primary-lighter: #f0fdfa;
  --sol-text: #1f2937;
  --sol-text-secondary: #6b7280;
  --sol-text-muted: #9ca3af;
  --sol-bg: #ffffff;
  --sol-bg-subtle: #f9fafb;
  --sol-border: #e5e7eb;
  --sol-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --sol-shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
  --sol-radius: 16px;
  --sol-radius-sm: 10px;
  --sol-radius-full: 100px;
  --sol-font-display: 'Google Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --sol-font-body: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
  --sol-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  --sol-orange: #f59e0b;
  --sol-purple: #8b5cf6;
  --sol-blue: #3b82f6;

  /* Shared app chrome theming */
  --chrome-primary: var(--sol-primary);
  --chrome-text-secondary: var(--sol-text-secondary);
  --chrome-text-muted: var(--sol-text-muted);
  --chrome-bg: var(--sol-bg);
  --chrome-border: var(--sol-border);
  --chrome-font-display: var(--sol-font-display);
  --chrome-transition: var(--sol-transition);
  --chrome-shadow: var(--sol-shadow);
  --chrome-radius-full: var(--sol-radius-full);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--sol-font-body);
  background: var(--sol-bg-subtle);
  color: var(--sol-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.hidden { display: none !important; }

/* ===== WELCOME SCREEN ===== */
.welcome-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--sol-bg-subtle);
  padding: 24px;
  z-index: 1000;
}

.welcome-content {
  text-align: center;
  max-width: 400px;
  width: 100%;
}

.welcome-icon {
  width: 80px;
  height: 80px;
  background: var(--sol-primary-light);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: var(--sol-primary);
}

.welcome-icon svg {
  width: 40px;
  height: 40px;
}

.welcome-title {
  font-family: var(--sol-font-display);
  font-size: 32px;
  font-weight: 500;
  color: var(--sol-text);
  margin-bottom: 8px;
}

.welcome-subtitle {
  font-size: 16px;
  color: var(--sol-text-secondary);
  margin-bottom: 40px;
}

.welcome-actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.welcome-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 18px 24px;
  font-family: var(--sol-font-display);
  font-size: 16px;
  font-weight: 500;
  border: none;
  border-radius: var(--sol-radius);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.welcome-btn svg {
  width: 22px;
  height: 22px;
}

.welcome-btn-new {
  background: var(--sol-primary);
  color: white;
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
}

.welcome-btn-new:hover {
  background: var(--sol-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
}

.welcome-btn-continue {
  background: var(--sol-bg);
  color: var(--sol-text);
  border: 2px solid var(--sol-border);
}

.welcome-btn-continue:hover {
  border-color: var(--sol-primary);
  background: var(--sol-primary-lighter);
}

.welcome-btn-continue:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.welcome-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--sol-text-muted);
  font-size: 13px;
}

.welcome-divider::before,
.welcome-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--sol-border);
}

/* Recent schemes */
.welcome-recent {
  margin-top: 32px;
  text-align: left;
}

.welcome-recent-title {
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--sol-text-secondary);
  margin-bottom: 12px;
}

.welcome-recent-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.welcome-recent-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--sol-bg);
  border: 1px solid var(--sol-border);
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.welcome-recent-item:hover {
  border-color: var(--sol-primary);
  background: var(--sol-primary-lighter);
}

.welcome-recent-item-icon {
  width: 36px;
  height: 36px;
  background: var(--sol-primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sol-primary);
}

.welcome-recent-item-icon svg {
  width: 18px;
  height: 18px;
}

.welcome-recent-item-content {
  flex: 1;
  text-align: left;
}

.welcome-recent-item-title {
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--sol-text);
}

.welcome-recent-item-meta {
  font-size: 12px;
  color: var(--sol-text-muted);
}

/* .welcome-back, .exit-btn: from shared-app-chrome.css */

/* Scheme-specific: storage note sits above welcome-back */
.welcome-storage-note {
  position: absolute;
  bottom: 80px;
  margin-top: 0;
}

/* ===== LIBRARY TOGGLE (Left side) ===== */
.library-toggle {
  position: fixed;
  top: 20px;
  left: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--sol-bg);
  border: 1px solid var(--sol-border);
  border-radius: var(--sol-radius-full);
  color: var(--sol-text-secondary);
  font-family: var(--sol-font-display);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--sol-transition);
  z-index: 100;
}

.library-toggle:hover {
  border-color: var(--sol-primary);
  background: var(--sol-primary-lighter);
}

.library-toggle svg {
  width: 18px;
  height: 18px;
}

.library-count {
  background: var(--sol-primary);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
}

/* ===== FOCUS MODE (Step Cards) ===== */
.focus-mode {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--sol-bg-subtle);
  padding: 24px;
}

.focus-progress {
  position: fixed;
  top: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.focus-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sol-border);
  transition: all var(--sol-transition);
}

.focus-dot.active {
  background: var(--sol-primary);
  width: 24px;
  border-radius: 4px;
}

.focus-dot.complete {
  background: var(--sol-primary);
}

.focus-container {
  width: 100%;
  max-width: 500px;
}

.focus-card {
  display: none;
}

.focus-card.active {
  display: block;
  animation: cardFadeIn 0.4s ease;
}

@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.focus-card-inner {
  background: var(--sol-bg);
  border-radius: var(--sol-radius);
  padding: 48px 40px;
  box-shadow: var(--sol-shadow);
  text-align: center;
}

.focus-card-wide .focus-card-inner {
  padding: 40px;
}

.focus-step {
  display: inline-block;
  font-family: var(--sol-font-display);
  font-size: 12px;
  font-weight: 500;
  color: var(--sol-primary);
  background: var(--sol-primary-lighter);
  padding: 6px 14px;
  border-radius: var(--sol-radius-full);
  margin-bottom: 24px;
}

.focus-question {
  font-family: var(--sol-font-display);
  font-size: 24px;
  font-weight: 500;
  color: var(--sol-text);
  margin-bottom: 8px;
  line-height: 1.3;
}

.focus-hint {
  font-size: 15px;
  color: var(--sol-text-muted);
  margin-bottom: 32px;
}

.focus-input {
  width: 100%;
  padding: 16px 20px;
  font-family: var(--sol-font-body);
  font-size: 16px;
  color: var(--sol-text);
  background: var(--sol-bg-subtle);
  border: 2px solid transparent;
  border-radius: var(--sol-radius-sm);
  resize: none;
  transition: all var(--sol-transition);
}

.focus-input:focus {
  outline: none;
  background: var(--sol-bg);
  border-color: var(--sol-primary);
  box-shadow: 0 0 0 4px var(--sol-primary-light);
}

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

/* Number Input */
.number-input-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 8px;
}

.number-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sol-bg-subtle);
  border: 2px solid var(--sol-border);
  border-radius: 12px;
  color: var(--sol-text-secondary);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.number-btn:hover {
  background: var(--sol-primary-lighter);
  border-color: var(--sol-primary);
  color: var(--sol-primary);
}

.number-btn svg {
  width: 24px;
  height: 24px;
}

.number-input {
  width: 100px;
  padding: 16px;
  font-family: var(--sol-font-display);
  font-size: 48px;
  font-weight: 600;
  color: var(--sol-text);
  background: transparent;
  border: none;
  text-align: center;
}

.number-input:focus {
  outline: none;
}

.number-input::-webkit-inner-spin-button,
.number-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.number-label {
  font-size: 16px;
  color: var(--sol-text-muted);
  margin-bottom: 32px;
  display: block;
}

/* ===== KEY STAGE SELECTION ===== */
.key-stage-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.key-stage-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: var(--sol-bg-subtle);
  border: 2px solid var(--sol-border);
  border-radius: var(--sol-radius);
  cursor: pointer;
  transition: all var(--sol-transition);
  text-align: center;
}

.key-stage-option:hover {
  border-color: var(--sol-primary);
  background: var(--sol-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.key-stage-option.selected {
  border-color: var(--sol-primary);
  background: var(--sol-primary-lighter);
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.2);
}

.key-stage-label {
  font-family: var(--sol-font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--sol-text);
  margin-bottom: 4px;
}

.key-stage-option.selected .key-stage-label {
  color: var(--sol-primary-dark);
}

.key-stage-desc {
  font-size: 12px;
  color: var(--sol-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

/* ===== TOPIC PICKER ===== */
.topic-picker {
  text-align: left;
  margin-bottom: 24px;
}

.topic-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.topic-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-family: var(--sol-font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--sol-text-secondary);
  background: var(--sol-bg-subtle);
  border: 2px solid transparent;
  border-radius: var(--sol-radius-full);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.topic-tab:hover {
  background: var(--sol-bg);
  border-color: var(--sol-border);
}

.topic-tab.active {
  background: var(--sol-bg);
  border-color: var(--sol-primary);
  color: var(--sol-primary);
}

.topic-tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.topic-tab-dot.core { background: var(--sol-blue); }
.topic-tab-dot.specialist { background: var(--sol-purple); }
.topic-tab-dot.designing { background: var(--sol-orange); }

.topic-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.topic-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--sol-bg-subtle);
  border: 2px solid transparent;
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.topic-item:hover {
  background: var(--sol-bg);
  border-color: var(--sol-border);
}

.topic-item.selected {
  background: var(--sol-bg);
  border-color: var(--sol-primary);
}

.topic-item-check {
  width: 22px;
  height: 22px;
  border: 2px solid var(--sol-border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--sol-transition);
  pointer-events: none;
}

.topic-item.selected .topic-item-check {
  background: var(--sol-primary);
  border-color: var(--sol-primary);
}

.topic-item-check svg {
  width: 14px;
  height: 14px;
  color: white;
  opacity: 0;
  pointer-events: none;
}

.topic-item.selected .topic-item-check svg {
  opacity: 1;
}

.topic-item-title {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--sol-text);
  pointer-events: none;
}

/* Selected Topics */
.topics-selected {
  margin-bottom: 16px;
  text-align: left;
}

.topics-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--sol-text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.topics-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 32px;
}

.topics-empty {
  font-size: 13px;
  color: var(--sol-text-muted);
  font-style: italic;
}

.topic-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--sol-purple);
  color: white;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--sol-radius-full);
  animation: tagIn 0.2s ease;
}

@keyframes tagIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

.topic-tag button {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  cursor: pointer;
  transition: background var(--sol-transition);
}

.topic-tag button:hover {
  background: rgba(255,255,255,0.4);
}

.topic-tag button svg {
  width: 12px;
  height: 12px;
  color: white;
}

/* Custom topic input */
.topic-custom {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--sol-border);
}

.topic-custom-label {
  display: block;
  font-size: 12px;
  color: var(--sol-text-muted);
  margin-bottom: 8px;
}

.topic-add-row {
  display: flex;
  gap: 8px;
}

.topic-input {
  flex: 1;
}

.topic-add-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sol-purple);
  border: none;
  border-radius: var(--sol-radius-sm);
  color: white;
  cursor: pointer;
  transition: all var(--sol-transition);
  flex-shrink: 0;
}

.topic-add-btn:hover {
  background: #7c3aed;
  transform: translateY(-1px);
}

.topic-add-btn svg {
  width: 20px;
  height: 20px;
}

/* Focus Actions */
.focus-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.focus-btn-back {
  padding: 14px 24px;
  font-family: var(--sol-font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--sol-text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--sol-transition);
}

.focus-btn-back:hover {
  color: var(--sol-text);
}

.focus-btn-continue {
  padding: 14px 32px;
  font-family: var(--sol-font-display);
  font-size: 15px;
  font-weight: 500;
  color: white;
  background: var(--sol-primary);
  border: none;
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.focus-btn-continue:hover {
  background: var(--sol-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
}

.focus-btn-finish {
  background: linear-gradient(135deg, var(--sol-primary) 0%, var(--sol-primary-dark) 100%);
}

/* ===== TIMELINE MODE ===== */
.timeline-mode {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--sol-bg-subtle);
}

.timeline-header {
  padding: 24px 80px;
  text-align: center;
}

.timeline-title {
  font-family: var(--sol-font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--sol-text);
}

.timeline-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: auto;
  padding: 0 40px;
}

.timeline-scroll {
  display: inline-flex;
  align-items: center;
  padding: 40px;
  margin: 0 auto;
}

.timeline-track {
  display: flex;
  align-items: center;
}

/* Timeline Lesson */
.timeline-lesson {
  display: flex;
  align-items: center;
}

.timeline-card {
  position: relative;
  width: 160px;
  background: var(--sol-bg);
  border: 2px solid var(--sol-border);
  border-radius: var(--sol-radius);
  padding: 20px 16px 40px 16px; /* Extra bottom padding for connected badge */
  cursor: pointer;
  transition: all var(--sol-transition);
  text-align: center;
}

.timeline-card:hover {
  border-color: var(--sol-primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.timeline-card.has-content {
  border-color: var(--sol-primary);
  background: var(--sol-primary-lighter);
}

.timeline-connected-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: var(--sol-primary);
  color: white;
  border-radius: var(--sol-radius-sm);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--sol-transition);
  z-index: 10;
}

.timeline-connected-badge:hover {
  background: var(--sol-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.timeline-connected-badge svg {
  width: 14px;
  height: 14px;
}

.timeline-connected-badge span {
  white-space: nowrap;
}

.timeline-number {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--sol-primary) 0%, var(--sol-primary-dark) 100%);
  color: white;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sol-font-display);
  font-size: 15px;
  font-weight: 600;
  margin: 0 auto 12px;
}

.timeline-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--sol-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.timeline-title-text {
  font-family: var(--sol-font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--sol-text);
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.3;
}

.timeline-title-text.empty {
  color: var(--sol-text-muted);
  font-style: italic;
  font-weight: 400;
}

.timeline-topics {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  margin-top: 8px;
  min-height: 8px;
}

.timeline-topic-dot {
  width: 8px;
  height: 8px;
  background: var(--sol-purple);
  border-radius: 50%;
}

/* Timeline Connector */
.timeline-connector {
  width: 48px;
  height: 3px;
  background: var(--sol-border);
  position: relative;
  margin: 0 4px;
}

.timeline-connector::after {
  content: '';
  position: absolute;
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--sol-border);
}

/* End Goal */
.timeline-end-goal {
  display: flex;
  align-items: center;
}

.end-goal-card {
  width: 180px;
  background: linear-gradient(135deg, var(--sol-orange) 0%, #d97706 100%);
  border-radius: var(--sol-radius);
  padding: 24px 20px;
  text-align: center;
  color: white;
  box-shadow: 0 8px 32px rgba(245, 158, 11, 0.3);
}

.end-goal-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.end-goal-icon svg {
  width: 22px;
  height: 22px;
}

.end-goal-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.8;
  margin-bottom: 8px;
}

.end-goal-text {
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

/* Timeline Hint */
.timeline-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  font-size: 13px;
  color: var(--sol-text-muted);
}

.timeline-hint svg {
  width: 16px;
  height: 16px;
}

/* ===== MODALS ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
  backdrop-filter: blur(4px);
}

.modal {
  background: var(--sol-bg);
  border-radius: var(--sol-radius);
  width: 100%;
  max-width: 420px;
  box-shadow: var(--sol-shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--sol-border);
}

.modal-header h2 {
  font-family: var(--sol-font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--sol-text);
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sol-bg-subtle);
  border: none;
  border-radius: var(--sol-radius-sm);
  color: var(--sol-text-muted);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.modal-close:hover {
  background: #fef2f2;
  color: #ef4444;
}

.modal-close svg {
  width: 18px;
  height: 18px;
}

.modal-body {
  padding: 24px;
}

.modal-field {
  margin-bottom: 20px;
}

.modal-field:last-child {
  margin-bottom: 0;
}

.modal-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--sol-text);
  margin-bottom: 8px;
}

.modal-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 15px;
  background: var(--sol-bg-subtle);
  border: 2px solid transparent;
  border-radius: var(--sol-radius-sm);
  transition: all var(--sol-transition);
}

.modal-input:focus {
  outline: none;
  background: var(--sol-bg);
  border-color: var(--sol-primary);
}

.modal-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.modal-topic-chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  background: var(--sol-bg-subtle);
  border: 2px solid var(--sol-border);
  border-radius: var(--sol-radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 13px;
  font-weight: 500;
  color: var(--sol-text-secondary);
  user-select: none;
}

.modal-topic-chip:hover {
  border-color: var(--sol-primary);
  background: var(--sol-bg);
}

.modal-topic-chip.active {
  color: white;
  transform: scale(1.02);
}

.modal-topic-chip span {
  pointer-events: none;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--sol-border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.modal-btn-primary {
  padding: 12px 24px;
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: white;
  background: var(--sol-primary);
  border: none;
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.modal-btn-primary:hover {
  background: var(--sol-primary-dark);
}

.modal-btn-secondary {
  padding: 12px 24px;
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--sol-text-secondary);
  background: var(--sol-bg-subtle);
  border: none;
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.modal-btn-secondary:hover {
  background: var(--sol-border);
}

/* Create Lesson Plan button */
.modal-create-lesson {
  padding: 16px 24px;
  border-top: 1px solid var(--sol-border);
  background: var(--sol-bg-subtle);
  border-radius: 0 0 var(--sol-radius) var(--sol-radius);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-open-lesson-plan {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.modal-open-lesson-plan .modal-open-btn {
  flex: 1;
  min-width: 140px;
}

.modal-disconnect-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  font-family: var(--sol-font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--sol-text-secondary);
  background: var(--sol-bg-subtle);
  border: 2px solid var(--sol-border);
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.modal-disconnect-btn:hover {
  background: #fef2f2;
  border-color: #fecaca;
  color: #dc2626;
}

.modal-disconnect-btn svg {
  width: 18px;
  height: 18px;
}

.modal-open-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: #6366f1;
  background: #e0e7ff;
  border: 2px solid #a5b4fc;
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.modal-open-btn:hover {
  background: #c7d2fe;
  border-color: #818cf8;
  color: #4f46e5;
}

.modal-open-btn svg {
  width: 20px;
  height: 20px;
}

.modal-create-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: #6366f1;
  background: #eef2ff;
  border: 2px dashed #c7d2fe;
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.modal-create-btn:hover {
  background: #e0e7ff;
  border-color: #a5b4fc;
  border-style: solid;
}

.modal-create-btn svg {
  width: 20px;
  height: 20px;
}

/* ===== LIBRARY PANEL (Left side) ===== */
.library-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 380px;
  height: 100vh;
  background: var(--sol-bg);
  box-shadow: 8px 0 32px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  z-index: 150;
  animation: slideInLeft 0.3s ease;
}

@keyframes slideInLeft {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

.library-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--sol-border);
}

.library-title {
  font-family: var(--sol-font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--sol-text);
}

.library-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sol-bg-subtle);
  border: none;
  border-radius: var(--sol-radius-sm);
  color: var(--sol-text-muted);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.library-close:hover {
  background: #fef2f2;
  color: #ef4444;
}

.library-close svg {
  width: 18px;
  height: 18px;
}

.library-content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.library-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  color: var(--sol-text-muted);
}

.library-empty svg {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.library-empty p {
  font-size: 15px;
  color: var(--sol-text-secondary);
  margin-bottom: 4px;
}

.library-empty span {
  font-size: 13px;
}

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

.library-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--sol-bg-subtle);
  border: 1px solid var(--sol-border);
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.library-item:hover {
  border-color: var(--sol-primary);
  background: var(--sol-primary-lighter);
}

.library-item-icon {
  width: 40px;
  height: 40px;
  background: var(--sol-primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sol-primary);
  flex-shrink: 0;
}

.library-item-icon svg {
  width: 20px;
  height: 20px;
}

.library-item-content {
  flex: 1;
  min-width: 0;
}

.library-item-title {
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--sol-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.library-item-meta {
  font-size: 12px;
  color: var(--sol-text-muted);
}

.library-item-actions {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-shrink: 0;
}

.library-item-copy,
.library-item-delete {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 10px;
  font-family: var(--sol-font-display);
  font-size: 12px;
  font-weight: 500;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--sol-transition);
  color: var(--sol-text-muted);
  opacity: 0;
}

.library-item:hover .library-item-copy,
.library-item:hover .library-item-delete {
  opacity: 1;
}

.library-item-copy:hover {
  background: #eff6ff;
  color: #2563eb;
}

.library-item-delete:hover {
  background: #fef2f2;
  color: #ef4444;
}

.library-item-copy svg,
.library-item-delete svg {
  width: 16px;
  height: 16px;
}

.library-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--sol-border);
}

.library-new-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 20px;
  font-family: var(--sol-font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--sol-primary);
  background: var(--sol-primary-lighter);
  border: 2px dashed var(--sol-primary-light);
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.library-new-btn:hover {
  background: var(--sol-primary-light);
  border-style: solid;
}

.library-new-btn svg {
  width: 18px;
  height: 18px;
}

.library-backup-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.library-backup-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  font-family: var(--sol-font-display);
  font-size: 12px;
  font-weight: 500;
  color: var(--sol-text-muted);
  background: var(--sol-bg-subtle);
  border: 1px solid var(--sol-border);
  border-radius: var(--sol-radius-sm);
  cursor: pointer;
  transition: all var(--sol-transition);
}

.library-backup-btn:hover {
  color: var(--sol-text);
  background: var(--sol-bg);
  border-color: var(--sol-primary);
}

.library-backup-btn svg {
  width: 16px;
  height: 16px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .welcome-title {
    font-size: 28px;
  }
  
  .focus-card-inner {
    padding: 32px 24px;
  }
  
  .focus-question {
    font-size: 22px;
  }
  
  .number-input {
    font-size: 36px;
  }
  
  .timeline-container {
    padding: 0 16px;
  }
  
  .timeline-scroll {
    padding: 20px;
  }
  
  .timeline-card {
    width: 140px;
    padding: 16px 14px;
  }
  
  .timeline-connector {
    width: 32px;
  }
  
  .end-goal-card {
    width: 150px;
    padding: 20px 16px;
  }
  
  .library-panel {
    width: 100%;
  }
}