/* CANONICAL v5.1 — Full Framework (Scoped: .esheets-worksheet) */

/**
 * ESHEETS v5.1 Core Styles (Generic)
 * 
 * Must work site-wide without affecting other elements.
 * All rules MUST be scoped under .esheets-worksheet
 */

/* --- Base Scoping --- */
.esheets-worksheet {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  color: #212529;
  font-size: 1.4rem;
  width: 100%;
  max-width: 900px;
  /* Updated max-width */
  margin: 0 auto;
}

.esheets-worksheet * {
  box-sizing: border-box;
}

/* --- Score Displays (Top/Bottom) --- */
.esheets-worksheet [data-esheets-score] {
  font-weight: 700;
  color: #495057;
  font-size: 1.5rem;
}

.esheets-worksheet .esheets-scorebar {
  padding: 1.1rem 1.6rem;
  background-color: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 4px;
  text-align: center;
  margin: 1.5rem 0;
}

/* --- Submission Bar (Bottom Control Panel) --- */
.esheets-worksheet .esheets-submission-bar {
  margin-top: 3rem;
  padding: 2rem;
  background-color: #f8f9fa;
  border-top: 2px solid #e9ecef;
  border-radius: 6px;
  text-align: center;
}

.esheets-worksheet .esheets-submission-bar .esheets-btn-group {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

/* --- Tracking Panel --- */
.esheets-worksheet .es-tracking-panel {
  color: #6c757d;
  background: transparent;
  border: none;
  font-size: 0.95rem;
  font-weight: 500;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  align-self: flex-end;
}

.esheets-worksheet .es-track-label {
  text-transform: uppercase;
  font-size: 0.85em;
  letter-spacing: 0.05em;
  color: #513094;
  margin-right: 0.25rem;
}

.esheets-worksheet .es-track-val {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: #212529;
  font-weight: 600;
}

/* --- Identity Bar --- */
.esheets-worksheet .esheets-identity-bar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
  width: 100%;
}

.esheets-worksheet .esheets-identity-bar.es-tracking-inactive {
  margin-bottom: 0;
  gap: 0;
}

.esheets-worksheet .es-id-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 1.5rem;
  width: 100%;
}

.esheets-worksheet .es-id-row > div.es-id-field {
  display: flex;
  align-items: center;
  flex: 1 1 300px;
}

.esheets-worksheet .es-id-row label {
  font-weight: bold;
  margin-right: 1rem;
  white-space: nowrap;
}

/* Wider Identity Fields */
.esheets-worksheet .es-id-row .es-input {
  width: 100%;
  flex-grow: 1;
  min-width: 200px;
}

/* Print Identity Header - Controlled by JS now */
.esheets-worksheet .es-print-header {
  display: none;
}

/* --- Buttons (Scoped System) --- */

/* 1. Base Reset & Shared Styles */
.esheets-worksheet button,
.esheets-worksheet .es-btn,
.esheets-worksheet .esheets-btn {
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  background-color: #e9ecef;
  color: #212529;
  transition: all 0.2s ease-in-out;
  display: inline-block;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  user-select: none;
}

/* 2. PRIMARY ACTION BUTTONS (Submission Bar) */
.esheets-worksheet #submissionBar button,
.esheets-worksheet #submissionBar a,
.esheets-worksheet #submissionBar .es-btn,
.esheets-worksheet #submissionBar .esheets-btn,
.esheets-worksheet #submissionBar [role="button"],
.esheets-worksheet #submissionBar input[type="button"],
.esheets-worksheet #submissionBar input[type="submit"] {
  font-size: 1.5rem !important;
  padding: 19px 31px !important;
  min-height: 62px !important;
  border-radius: 10px !important;
  line-height: 1.1 !important;
}

/* 3. STANDARD BUTTONS */
.esheets-worksheet button,
.esheets-worksheet .es-btn,
.esheets-worksheet .esheets-btn {
  font-size: 1.25rem !important;
  padding: 14px 20px !important;
  min-height: 55px !important;
  border-radius: 6px;
  line-height: 1.5;
}

/* 4. PER-QUESTION OVERRIDES */
.esheets-worksheet .es-q-row button,
.esheets-worksheet .es-q-row .es-btn,
.esheets-worksheet .es-question-actions button,
.esheets-worksheet .answer-row button.es-btn {
  font-size: 1.1em !important;
  padding: 12px 18px !important;
  min-height: 52px !important;
  border-radius: 6px;
}

/* Small Variant */
.esheets-worksheet .es-btn-small {
  padding: 10px 14px !important;
  font-size: 1.2rem !important;
  min-height: 46px !important;
}

/* Base Hover */
.esheets-worksheet button:hover:not(:disabled),
.esheets-worksheet .es-btn:hover:not(:disabled),
.esheets-worksheet .esheets-btn:hover:not(:disabled) {
  background-color: #dde2e6;
  text-decoration: none;
}

/* Base Focus */
.esheets-worksheet button:focus,
.esheets-worksheet .es-btn:focus,
.esheets-worksheet .esheets-btn:focus {
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(111, 66, 193, 0.25);
}

/* Primary Variant (Brand Purple #513094) */
.esheets-worksheet .es-btn-primary,
.esheets-worksheet .esheets-btn-primary {
  background-color: #513094;
  color: white;
  border-color: #513094;
}

.esheets-worksheet .es-btn-primary:hover:not(:disabled),
.esheets-worksheet .esheets-btn-primary:hover:not(:disabled) {
  background-color: #3b226e;
  border-color: #3b226e;
}

.esheets-worksheet .es-btn-primary:focus,
.esheets-worksheet .esheets-btn-primary:focus {
  box-shadow: 0 0 0 0.25rem rgba(81, 48, 148, 0.5);
}

/* Secondary Variant */
.esheets-worksheet .es-btn-secondary,
.esheets-worksheet .esheets-btn-secondary {
  background-color: #6c757d;
  color: white;
  border-color: #6c757d;
}

.esheets-worksheet .es-btn-secondary:hover:not(:disabled),
.esheets-worksheet .esheets-btn-secondary:hover:not(:disabled) {
  background-color: #5a6268;
  border-color: #545b62;
}

.esheets-worksheet .es-btn-secondary:focus,
.esheets-worksheet .esheets-btn-secondary:focus {
  box-shadow: 0 0 0 0.25rem rgba(130, 138, 145, 0.5);
}

/* Disabled State */
.esheets-worksheet .es-btn:disabled,
.esheets-worksheet .es-btn.disabled,
.esheets-worksheet .esheets-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  box-shadow: none;
}

/* --- Confirmation UI (In-page) --- */
.esheets-worksheet .esheets-confirm-ui {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: #fff3cd;
  border: 1px solid #ffeeba;
  border-radius: 6px;
  color: #856404;
  animation: esheets-fade-in 0.3s ease-out;
}

.esheets-worksheet .esheets-confirm-ui p {
  margin: 0 0 1.5rem 0;
  font-weight: 500;
  font-size: 1.3rem;
}

.esheets-worksheet .esheets-summary {
  margin-top: 1.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: #495057;
  border-top: 1px solid #dee2e6;
  padding-top: 1.5rem;
}

.esheets-worksheet .es-lockout-message {
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  border-radius: 6px;
  font-weight: 600;
}

.esheets-worksheet .esheets-summary div {
  margin: 0.5rem 0;
}

/* --- Locked / Correct Inputs --- */
.esheets-worksheet input.es-correct-locked,
.esheets-worksheet input.es-correct-locked:disabled {
  background-color: #ebfaeb !important;
  border-color: #2e8b57 !important;
  color: #006400 !important;
  opacity: 1 !important;
  cursor: default;
  font-weight: bold;
}

.esheets-worksheet input:disabled:not(.es-correct-locked) {
  background-color: #e9ecef;
  color: #495057;
  cursor: not-allowed;
  border-color: #ced4da;
}

/* --- Teacher Panel -- */
.esheets-worksheet .esheets-teacher-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem;
  margin-top: 2rem;
  background-color: #f6f4fa;
  /* Soft purple */
  border: 1px solid #d5c8eb;
  border-left: 4px solid #513094;
  border-radius: 6px;
}

.esheets-worksheet .esheets-teacher-panel .es-tp-header {
  font-weight: bold;
  color: #513094;
}

.esheets-worksheet .esheets-teacher-panel .es-tp-actions {
  display: flex;
  gap: 0.75rem;
}

.esheets-worksheet .esheets-teacher-panel button.es-btn-secondary {
  background-color: #513094 !important;
  color: #ffffff !important;
  border-color: #513094 !important;
}
.esheets-worksheet .esheets-teacher-panel button.es-btn-secondary:hover {
  background-color: #3b226e !important;
  border-color: #3b226e !important;
}

/* Teacher Panel Close Button */
.esheets-worksheet .esheets-teacher-panel .es-btn-outline {
  background: transparent !important;
  border: 2px solid #513094 !important;
  color: #513094 !important;
  padding: 2px 12px !important;
  font-size: 1.2em;
  font-weight: bold;
  line-height: 1;
}

.esheets-worksheet .esheets-teacher-panel .es-btn-outline:hover {
  background: #513094 !important;
  color: #ffffff !important;
}

/* --- Utility Animations --- */
@keyframes esheets-fade-in {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Per-Question UI (Subtle/Teacher-friendly) --- */
.esheets-worksheet {font-size:150%;}

.esheets-worksheet .question-text {
  font-size: 1.35em;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  display: block;
}

.esheets-worksheet .es-q-row,
.esheets-worksheet .answer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 2rem;
  margin-top: 10px;
  font-size: 1.6rem;
}

.esheets-worksheet .es-q-row label {
  font-size: 1.2em !important;
  font-weight: 700;
}

.esheets-worksheet .es-input,
.esheets-worksheet input[type="text"],
.esheets-worksheet input[type="number"] {
  display: inline-block;
  padding: 12px 14px !important;
  font-size: 1.1em !important;
  font-family: inherit;
  line-height: 1.5;
  color: #495057;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ced4da;
  border-radius: 4px;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  min-width: 5em;
  min-height: 52px !important;
  width: 120px;
  max-width: 100%;
}

.esheets-worksheet .es-input-wide {
  width: 100% !important;
}

.esheets-worksheet .es-input:focus {
  color: #495057;
  background-color: #fff;
  border-color: #bfaee3;
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(81, 48, 148, 0.25);
}

.esheets-worksheet .es-btn-outline:not(.es-tp-close) {
  color: #6c757d;
  background-color: transparent;
  background-image: none;
  border-color: #6c757d;
}

.esheets-worksheet .es-pill {
  display: inline-block;
  padding: 0.35em 0.75em;
  font-size: 85%;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 10rem;
}

.esheets-worksheet .es-pill-correct {
  color: #155724;
  background-color: #d4edda;
  border: 1px solid #c3e6cb;
}

.esheets-worksheet .es-pill-wrong {
  color: #721c24;
  background-color: #f8d7da;
  border: 1px solid #f5c6cb;
}

.esheets-worksheet .es-feedback {
  display: inline-block;
  margin-left: 12px;
  font-weight: 600;
}

.esheets-worksheet .es-feedback--correct { color: #0a7a2f; }
.esheets-worksheet .es-feedback--incorrect { color: #c81e1e; }
.esheets-worksheet .es-feedback--neutral { color: inherit; }

/* --- Identity Input States --- */
.esheets-worksheet .es-input.es-invalid {
  border-color: #dc3545;
}

/* --- Print Styles --- */
@media print {
  figure.gh-article-image,
  figure.kg-embed-card,
  figure.kg-card,
  div.gh-comments,
  footer.gh-foot,
  .gh-canvas>figure,
  .gh-canvas>header,
  .gh-comments-box,
  #ghost-comments-root {
    display: none !important;
  }

  .esheets-worksheet .esheets-submission-bar,
  .esheets-worksheet button,
  .esheets-worksheet .es-btn,
  .esheets-worksheet .check-button,
  .esheets-worksheet .es-lockout-message {
    display: none !important;
  }

  /* Identity print header replaces normal fields */
  .esheets-worksheet .esheets-identity-bar .es-id-row,
  .esheets-worksheet .esheets-identity-bar .es-id-field,
  .esheets-worksheet .esheets-identity-bar label,
  .esheets-worksheet .esheets-identity-bar input {
    display: none !important;
  }
  
  .esheets-worksheet .es-print-header {
    display: flex !important;
    gap: 2rem;
    font-size: 12pt;
    font-weight: bold;
    margin-bottom: 1.5rem;
    color: #000;
  }

  .esheets-worksheet .es-tracking-panel {
    display: none !important;
  }

  /* Compact Print Tuning */
  .esheets-worksheet .es-input {
    font-size: 10pt !important;
    padding: 0 !important;
    max-width: 32px !important;
    height: 16px !important;
    min-height: auto !important;
    line-height: 1 !important;
    border-width: 1px !important;
  }

  .esheets-worksheet .question,
  .esheets-worksheet .es-q-row,
  .esheets-worksheet .answer-row {
    margin-bottom: 0 !important;
    padding: 0 0 0.15rem 0 !important;
    border-bottom: none !important;
  }

  html.es-score-zero .esheets-worksheet [data-esheets-score] {
    display: none !important;
  }

  .esheets-worksheet .esheets-teacher-panel {
    display: none !important;
  }

  :root.esheets-teacher .esheets-worksheet .esheets-teacher-panel {
    display: flex !important;
    border: none;
    background: none;
    padding: 0;
    margin: 0 0 1rem 0;
  }

  :root.esheets-teacher .esheets-worksheet .esheets-teacher-panel .es-tp-actions {
    display: none !important;
  }

  :root.esheets-teacher .esheets-worksheet .esheets-teacher-panel .es-tp-header {
    display: block !important;
    font-size: 1.25em;
    text-align: center;
    width: 100%;
    margin-bottom: 1rem;
    color: #000;
  }

  .esheets-worksheet .es-input.es-revealed {
    border-color: #000 !important;
    background-color: #fff !important;
    color: #000 !important;
    font-weight: bold;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .esheets-worksheet .es-q-row {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .es-print-name-line {
    display: block !important;
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.2rem;
    font-family: sans-serif;
  }

  .esheets-worksheet {
    border: none !important;
    background: white !important;
    width: 100% !important;
    max-width: none !important;
    font-size: 12pt;
    padding: 0 !important;
  }
}

.es-print-name-line {
  display: none;
}

/* --- Static Fraction Formatting (In-Text / Questions) --- */
.esheets-worksheet .es-visual-mixed-fraction {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  vertical-align: middle;
}
.esheets-worksheet .es-whole-number {
  font-size: 1.4em;
  line-height: 1;
}
.esheets-worksheet .es-fraction-column {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  margin: 0 0.2rem;
}
.esheets-worksheet .es-fraction-label-static {
  font-size: 1.1em;
  margin: 0.1rem 0;
  text-align: center;
  line-height: 1;
}
.esheets-worksheet .es-fraction-line-static {
  width: 100%;
  min-width: 1.5em;
  height: 0;
  border-bottom: 2px solid currentColor;
  margin: 2px 0;
}