/* ─────────────────────────────────────────────────────────────────────────────
   Navigage NPI — Stylesheet
   Brandbook: docs/brandbook.md (frontend-brand-guardian)
   Color palette: Orange accent (#F97316) on white/light-gray, dark text (#111827)
───────────────────────────────────────────────────────────────────────────── */

/* ── Custom Properties (Brandbook § Color System & Spacing) ─────────────────── */
:root {
  /* Colors */
  --color-orange:      #F97316;
  --color-orange-dark: #EA580C;
  --color-orange-tint: #FED7AA;
  --color-bg:          #F9F9F9;
  --color-white:       #FFFFFF;
  --color-card-bg:     #F3F4F6;
  --color-text:        #111827;
  --color-heading:     #1A1A2E;
  --color-muted:       #6B7280;
  --color-border:      #E5E7EB;
  --color-border-light:#F3F4F6;

  /* Typography */
  --font-sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:  "JetBrains Mono", "Fira Code", "Courier New", Courier, monospace;

  /* Spacing (8px grid) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-12: 3rem;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-panel: 0 2px 8px rgba(0,0,0,0.07);
}

/* ── Reset & Base ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-orange); text-decoration: none; }
a:hover { color: var(--color-orange-dark); text-decoration: underline; }

/* ── Layout Container ───────────────────────────────────────────────────────── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-4); }
}

/* ── Header (Brandbook § Component Patterns › Header) ──────────────────────── */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.header-brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.header-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.02em;
}

.header-logo span {
  color: var(--color-orange);
}

.header-subtitle {
  font-size: 0.8125rem;
  color: var(--color-muted);
  font-weight: 400;
}

/* Beta badge */
.badge-beta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background: var(--color-orange-tint);
  color: var(--color-orange-dark);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── Main Content ───────────────────────────────────────────────────────────── */
.main-content {
  padding: var(--space-8) 0 var(--space-12);
}

/* ── Section Layout ─────────────────────────────────────────────────────────── */
.section {
  margin-bottom: var(--space-8);
}

.section-header {
  margin-bottom: var(--space-6);
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-heading);
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: var(--space-1);
}

/* ── Insurer Status Grid (Brandbook § Component Patterns › Status Cards) ───── */
.insurer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

@media (max-width: 640px) {
  .insurer-grid { grid-template-columns: 1fr; }
}

.insurer-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: box-shadow 0.15s ease;
}

.insurer-card:hover {
  box-shadow: var(--shadow-panel);
}

.insurer-card--solved {
  border-left: 3px solid var(--color-orange);
}

.insurer-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}

.insurer-card__name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-heading);
  line-height: 1.3;
}

.insurer-card__plans {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.5;
}

.insurer-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-1);
}

/* Status badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}

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

.badge--pending {
  background: transparent;
  border: 1px solid #D1D5DB;
  color: var(--color-muted);
}

.view-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-orange);
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.view-link:hover {
  color: var(--color-orange-dark);
  text-decoration: none;
}

/* ── Stats Bar (Brandbook § Component Patterns › Stats Bar) ─────────────────── */
.stats-bar {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5) 0;
  margin: var(--space-8) 0;
}

.stats-bar .container {
  display: flex;
  align-items: center;
  gap: 0;
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 var(--space-6);
}

.stat-item + .stat-item {
  border-left: 1px solid var(--color-border);
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.2;
}

.stat-value--orange {
  color: var(--color-orange);
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: var(--space-1);
}

@media (max-width: 640px) {
  .stats-bar .container { flex-direction: column; gap: var(--space-4); }
  .stat-item + .stat-item { border-left: none; border-top: 1px solid var(--color-border); padding-top: var(--space-4); }
}

/* ── Playground (Brandbook § Component Patterns › Playground) ───────────────── */
.playground {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-6);
  align-items: start;
}

@media (max-width: 900px) {
  .playground { grid-template-columns: 1fr; }
}

/* Config Panel */
.config-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-orange);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}

.config-panel__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-5);
}

/* Form elements */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  line-height: 1.5;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(249,115,22,0.15);
}

.form-control:disabled {
  background: var(--color-card-bg);
  color: var(--color-muted);
  cursor: not-allowed;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  background-size: 1.25rem;
  padding-right: 2rem;
}

/* Run button */
.btn-run {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-5);
  background: var(--color-orange);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
  margin-bottom: var(--space-5);
}

.btn-run:hover {
  background: var(--color-orange-dark);
  transform: translateY(-1px);
}

.btn-run:active {
  transform: translateY(0);
}

.btn-run:disabled {
  background: #D1D5DB;
  color: var(--color-muted);
  cursor: not-allowed;
  transform: none;
}

/* Raw API box */
.api-call-box {
  margin-top: var(--space-4);
}

.api-call-box__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.api-call-box__code {
  background: var(--color-heading);
  color: #F1F5F9;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.7;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Results Panel */
.results-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.results-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.results-panel__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.results-count {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.results-count strong {
  color: var(--color-orange);
  font-weight: 600;
}

/* Empty / loading states */
.results-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
  text-align: center;
  color: var(--color-muted);
  gap: var(--space-3);
}

.results-empty__icon {
  width: 40px;
  height: 40px;
  opacity: 0.3;
}

.results-empty__text {
  font-size: 0.9rem;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2.5px solid var(--color-border);
  border-top-color: var(--color-orange);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-12) var(--space-6);
  color: var(--color-muted);
  font-size: 0.875rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Results table */
.results-table-wrap {
  overflow-x: auto;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.results-table thead th {
  background: #F9FAFB;
  color: var(--color-muted);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.results-table tbody tr {
  border-bottom: 1px solid var(--color-border-light);
  transition: background 0.1s ease;
}

.results-table tbody tr:hover {
  background: #FAFAFA;
}

.results-table tbody td {
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  vertical-align: top;
}

.td-npi {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-heading);
  font-weight: 600;
  white-space: nowrap;
}

.td-muted {
  color: var(--color-muted);
}

/* Error message */
.error-message {
  padding: var(--space-4) var(--space-6);
  background: #FEF2F2;
  border-left: 3px solid #EF4444;
  color: #B91C1C;
  font-size: 0.875rem;
  margin: var(--space-4);
  border-radius: var(--radius-sm);
}

/* ── Intel Card ──────────────────────────────────────────────────────────── */
.intel-card {
  background: #FFFBF7;
  border: 1px solid var(--color-orange-light);
  border-left: 4px solid var(--color-orange);
  border-radius: var(--radius);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.intel-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.intel-card__label {
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-orange-dark);
}

.intel-card__summary {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--space-5);
}

.intel-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.intel-step {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.5;
}

.intel-step__num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background: var(--color-orange);
  color: #fff;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.intel-credentials {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-orange-light);
}

.intel-cred {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.intel-cred__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  font-weight: 600;
}

.intel-cred__value {
  font-size: 0.8rem;
  color: var(--color-heading);
  background: var(--color-bg-alt);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  width: fit-content;
}