/* calculator.css - Premium SaaS Calculator UI styling */

/* Calculator Card & Form Elements */
.calc-wrapper {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem;
  margin-bottom: 3.5rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.calc-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 3rem;
}

@media (max-width: 1024px) {
  .calc-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

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

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  background-color: var(--bg-app);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-weight: 500;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--primary);
  background-color: var(--bg-surface);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.input-suffix {
  position: absolute;
  right: 1rem;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  pointer-events: none;
}

.form-input-has-suffix {
  padding-right: 2.5rem;
}

/* Interactive List/Rows for Dynamic Calculators */
.calc-rows {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.calc-row-item {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  background-color: var(--bg-app);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  animation: fadeIn 0.25s ease-out;
}

.calc-row-item.gpa-row {
  grid-template-columns: 2fr 1.25fr 1.25fr auto;
}

@media (max-width: 640px) {
  .calc-row-item, .calc-row-item.gpa-row {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  .calc-row-item > *:first-child, .calc-row-item.gpa-row > *:first-child {
    grid-column: span 2;
  }
  .calc-row-item .btn-remove, .calc-row-item.gpa-row .btn-remove {
    grid-column: span 2;
    justify-content: center;
  }
}

.btn-remove {
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.btn-remove:hover {
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
}

.btn-remove svg {
  width: 1.25rem;
  height: 1.25rem;
}

.btn-add-row {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  background: transparent;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: 1px dashed var(--primary);
  transition: all var(--transition-fast);
  width: fit-content;
}

.btn-add-row:hover {
  background-color: rgba(37, 99, 235, 0.05);
  border-style: solid;
}

.btn-add-row svg {
  width: 1.125rem;
  height: 1.125rem;
}

/* Result Card Styles */
.result-card {
  background: linear-gradient(145deg, var(--bg-surface), var(--bg-app));
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow-md);
  position: relative;
}

.result-card.success-state {
  border-color: var(--success);
}

.result-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Progress Circle */
.progress-ring-container {
  position: relative;
  width: 160px;
  height: 160px;
  margin-bottom: 1.5rem;
}

.progress-ring-svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.progress-ring-circle-bg {
  fill: transparent;
  stroke: var(--border);
  stroke-width: 10;
}

.progress-ring-circle {
  fill: transparent;
  stroke: var(--primary);
  stroke-width: 10;
  stroke-dasharray: 440;
  stroke-dashoffset: 440;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s cubic-bezier(0.4, 0, 0.2, 1), stroke var(--transition-normal);
}

.progress-text-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.progress-score {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 2.25rem;
  color: var(--text-primary);
  line-height: 1;
}

.progress-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-top: 0.25rem;
}

/* Letter Grade Badge */
.grade-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.grade-badge.excellent { background-color: rgba(16, 185, 129, 0.15); color: var(--success); }
.grade-badge.good { background-color: rgba(6, 182, 212, 0.15); color: var(--accent); }
.grade-badge.average { background-color: rgba(245, 158, 11, 0.15); color: var(--warning); }
.grade-badge.warning { background-color: rgba(239, 68, 68, 0.15); color: var(--danger); }

.interpretation-text {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.interpretation-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 260px;
  line-height: 1.4;
}

/* Result Actions Panel */
.result-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  width: 100%;
}

.result-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.625rem 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--bg-surface);
}

.result-action-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background-color: rgba(37, 99, 235, 0.03);
}

.result-action-btn svg {
  width: 1.125rem;
  height: 1.125rem;
}

.btn-reset {
  grid-column: span 2;
  margin-top: 0.5rem;
  justify-content: center;
  flex-direction: row;
  background-color: transparent;
  border: 1px dashed var(--border);
}

.btn-reset:hover {
  border-color: var(--danger);
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.03);
}


/* Grading Table (Easy Grader Table Output) */
.grade-table-container {
  margin-top: 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.grade-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.grade-table th {
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.grade-table td {
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.grade-table tr:hover td {
  background-color: rgba(37, 99, 235, 0.02);
  color: var(--text-primary);
}

/* Rich SEO Content Below Tools */
.seo-content-section {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  margin-top: 4rem;
  box-shadow: var(--shadow-md);
}

.seo-content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

@media (max-width: 992px) {
  .seo-content-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.rich-text h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  margin-top: 1.5rem;
}

.rich-text h2:first-child {
  margin-top: 0;
}

.rich-text h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  margin-top: 1.25rem;
}

.rich-text p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 0.975rem;
  line-height: 1.65;
}

.rich-text ul, .rich-text ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.rich-text li {
  margin-bottom: 0.5rem;
  font-size: 0.975rem;
}

.rich-text ul {
  list-style-type: disc;
}

.rich-text ol {
  list-style-type: decimal;
}

.formula-block {
  background-color: var(--bg-app);
  border-left: 4px solid var(--primary);
  padding: 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-primary);
  margin: 1.5rem 0;
  overflow-x: auto;
}

.seo-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background-color: var(--bg-app);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.sidebar-widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.5rem;
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.sidebar-link:hover {
  color: var(--primary);
}

.sidebar-link svg {
  width: 1rem;
  height: 1rem;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Print Overrides */
@media print {
  body {
    background-color: #FFFFFF !important;
    color: #000000 !important;
  }
  header, footer, .breadcrumbs, .btn-ghost, .btn-icon, .btn-add-row, .btn-remove, .result-actions, .seo-content-section, .section-header {
    display: none !important;
  }
  .calc-wrapper {
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .calc-grid {
    grid-template-columns: 1fr !important;
  }
  .result-card {
    border: 2px solid #000000 !important;
    background: #FFFFFF !important;
    page-break-inside: avoid;
  }
}

/* User-friendly Form Validation Styles */
.form-input.is-invalid {
  border-color: var(--danger) !important;
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15) !important;
}

.invalid-feedback {
  color: var(--danger);
  font-size: 0.8rem;
  margin-top: 0.35rem;
  font-weight: 600;
  display: block;
}

/* Responsive Table/Input Headers */
.calc-header-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.gpa-header-row {
  display: grid;
  grid-template-columns: 2fr 1.25fr 1.25fr auto;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

@media (max-width: 600px) {
  .calc-header-row,
  .gpa-header-row {
    display: none !important;
  }
}