/* GovBenefitsHelp.com — Shared Stylesheet
   Design: NerdWallet layout + USWDS color palette
   Last updated: March 2026 */

/* ============================================
   Google Fonts
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Primary blues (USWDS) */
  --color-primary: #005ea2;
  --color-primary-dark: #1a4480;
  --color-primary-darker: #162e51;
  --color-primary-light: #73b3e7;
  --color-primary-lighter: #d9e8f6;

  /* Accent red */
  --color-secondary: #d83933;
  --color-secondary-dark: #b50909;

  /* Accent cool (teal) */
  --color-accent-cool: #00bde3;
  --color-accent-cool-dark: #07648d;

  /* Neutrals */
  --color-base-lightest: #f0f0f0;
  --color-base-lighter: #dfe1e2;
  --color-base-light: #a9aeb1;
  --color-base: #71767a;
  --color-base-dark: #565c65;
  --color-ink: #1b1b1b;
  --color-white: #ffffff;

  /* Status */
  --color-success: #538200;
  --color-warning: #ffbe2e;
  --color-error: #e52207;

  /* Fonts */
  --font-heading: 'Libre Baskerville', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Font scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-section: 5rem;

  /* Layout */
  --max-width: 1200px;
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-ink);
  line-height: 1.3;
}

h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.4;
}

h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

h4 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-base-dark);
}

ul, ol {
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
}

li {
  margin-bottom: var(--space-xs);
  color: var(--color-base-dark);
}

/* ============================================
   Layout
   ============================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-section) 0;
}

.section--gray {
  background-color: var(--color-base-lightest);
}

.section--blue {
  background-color: var(--color-primary-lighter);
}

.section--dark {
  background-color: var(--color-primary-darker);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3,
.section--dark p {
  color: var(--color-white);
}

/* ============================================
   Official Banner (usa.gov style)
   ============================================ */
.official-banner {
  background-color: var(--color-base-lightest);
  padding: var(--space-xs) 0;
  font-size: var(--text-xs);
  color: var(--color-base);
  border-bottom: 1px solid var(--color-base-lighter);
}

.official-banner .container {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-base-lighter);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary-dark);
}

.nav__logo:hover {
  text-decoration: none;
  color: var(--color-primary);
}

.nav__logo svg,
.nav__logo img {
  height: 36px;
  width: auto;
}

.nav__links {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  padding: 0;
  margin: 0;
}

.nav__links a {
  color: var(--color-base-dark);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-sm) 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  text-decoration: none;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-primary);
  color: var(--color-white) !important;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: var(--text-sm);
  transition: background-color 0.2s ease;
}

.nav__cta:hover {
  background-color: var(--color-primary-dark);
  text-decoration: none;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink);
  margin: 5px 0;
  transition: 0.3s;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--color-primary-darker) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: var(--space-3xl) 0 var(--space-section);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  right: -100px;
  top: -100px;
  width: 400px;
  height: 400px;
  background: var(--color-primary);
  opacity: 0.1;
  border-radius: 50%;
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(var(--text-3xl), 4vw, 3rem);
  max-width: 700px;
}

.hero p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--text-lg);
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-primary-light);
}

/* ============================================
   Breadcrumbs
   ============================================ */
.breadcrumbs {
  padding: var(--space-md) 0;
  font-size: var(--text-sm);
  color: var(--color-base);
}

.breadcrumbs a {
  color: var(--color-primary);
}

.breadcrumbs span {
  margin: 0 var(--space-sm);
  color: var(--color-base-light);
}

/* ============================================
   Cards (NerdWallet-style)
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xl);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  border: 1px solid var(--color-base-lighter);
}

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

.card__icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-lighter);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  font-size: var(--text-2xl);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-ink);
}

.card__text {
  color: var(--color-base-dark);
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
}

.card__link {
  font-weight: 600;
  font-size: var(--text-sm);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.card__link::after {
  content: '\2192';
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.card-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  line-height: 1.4;
}

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

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  text-decoration: none;
}

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

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
}

.btn--accent {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.btn--accent:hover {
  background-color: var(--color-secondary-dark);
  color: var(--color-white);
  text-decoration: none;
}

.btn--large {
  padding: 16px 32px;
  font-size: var(--text-lg);
}

.btn--full {
  width: 100%;
}

.btn--arrow::after {
  content: ' \2192';
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: var(--space-xs);
  color: var(--color-ink);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-base-lighter);
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-ink);
  background-color: var(--color-white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 94, 162, 0.15);
}

.form-group input::placeholder {
  color: var(--color-base-light);
}

.form-group .error-msg {
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-top: var(--space-xs);
}

/* Checkbox */
.checkbox-group {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.checkbox-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}

.checkbox-group label {
  font-weight: 400;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-base-dark);
}

/* ============================================
   Multi-Step Screener Form
   ============================================ */
.screener {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
  max-width: 600px;
  margin: 0 auto;
}

.screener__progress {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.screener__progress::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--color-base-lighter);
}

.screener__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  position: relative;
  z-index: 1;
}

.screener__step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-base-lighter);
  color: var(--color-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  transition: all 0.3s ease;
}

.screener__step.active .screener__step-number {
  background: var(--color-primary);
  color: var(--color-white);
}

.screener__step.completed .screener__step-number {
  background: var(--color-success);
  color: var(--color-white);
}

.screener__step-label {
  font-size: var(--text-xs);
  color: var(--color-base);
  font-weight: 500;
}

.screener__step.active .screener__step-label {
  color: var(--color-primary);
  font-weight: 600;
}

.screener__panel {
  display: none;
}

.screener__panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.screener h3 {
  text-align: center;
  margin-bottom: var(--space-xl);
}

/* Checkbox grid for interests */
.interest-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.interest-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-base-lighter);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.interest-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.interest-item label {
  font-size: var(--text-sm);
  cursor: pointer;
  color: var(--color-ink);
}

/* TCPA consent */
.tcpa-consent {
  background: var(--color-base-lightest);
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-lg);
  border: 1px solid var(--color-base-lighter);
}

.tcpa-consent .fine-print {
  font-size: var(--text-xs);
  color: var(--color-base);
  line-height: 1.6;
  margin-top: var(--space-md);
}

.tcpa-consent .fine-print a {
  color: var(--color-primary);
}

/* ============================================
   Tables (for income limits, benefit amounts)
   ============================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-xl);
  font-size: var(--text-sm);
}

.data-table thead {
  background-color: var(--color-primary-darker);
  color: var(--color-white);
}

.data-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-base-lighter);
  color: var(--color-base-dark);
}

.data-table tbody tr:nth-child(even) {
  background-color: var(--color-base-lightest);
}

.data-table tbody tr:hover {
  background-color: var(--color-primary-lighter);
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-item {
  border-bottom: 1px solid var(--color-base-lighter);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  text-align: left;
}

.faq-question::after {
  content: '+';
  font-size: var(--text-2xl);
  color: var(--color-primary);
  flex-shrink: 0;
  margin-left: var(--space-md);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question::after {
  content: '\2212';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 1000px;
}

.faq-answer p {
  padding-bottom: var(--space-lg);
}

/* ============================================
   Trust Metrics (NerdWallet-style stats)
   ============================================ */
.trust-metrics {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  text-align: center;
  flex-wrap: wrap;
}

.trust-metric__number {
  font-family: var(--font-body);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.trust-metric__label {
  font-size: var(--text-sm);
  color: var(--color-base);
}

/* ============================================
   Updated Date Badge (E-E-A-T)
   ============================================ */
.updated-date {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-success);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

.updated-date::before {
  content: '\2713';
  font-weight: 700;
}

/* ============================================
   Disclaimer / Source Citation
   ============================================ */
.disclaimer {
  background: var(--color-base-lightest);
  border-left: 4px solid var(--color-primary);
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-sm);
  color: var(--color-base);
  margin: var(--space-xl) 0;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.source-cite {
  font-size: var(--text-xs);
  color: var(--color-base);
  font-style: italic;
}

/* ============================================
   Internal Linking Section
   ============================================ */
.related-programs {
  background: var(--color-primary-lighter);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  margin: var(--space-2xl) 0;
}

.related-programs h3 {
  color: var(--color-primary-darker);
}

.related-programs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

.related-programs__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-white);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 500;
  font-size: var(--text-sm);
  transition: box-shadow 0.2s ease;
}

.related-programs__item:hover {
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-primary-darker);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

.footer h4 {
  color: var(--color-white);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.footer__links {
  list-style: none;
  padding: 0;
}

.footer__links li {
  margin-bottom: var(--space-sm);
}

.footer__links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  transition: color 0.2s ease;
}

.footer__links a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__bottom a {
  color: rgba(255, 255, 255, 0.6);
}

.footer__bottom a:hover {
  color: var(--color-white);
}

/* ============================================
   Ad Slots (placeholder)
   ============================================ */
.ad-slot {
  background: var(--color-base-lightest);
  border: 1px dashed var(--color-base-lighter);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-base-light);
  margin: var(--space-xl) 0;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-white { color: var(--color-white); }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-base); }
.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-xl); }
.mt-3 { margin-top: var(--space-2xl); }
.mb-1 { margin-top: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xl); }
.mb-3 { margin-bottom: var(--space-2xl); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  .container { padding: 0 var(--space-md); }
  .section { padding: var(--space-2xl) 0; }

  .nav__links { display: none; }
  .nav__toggle { display: block; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
    z-index: 99;
  }

  .card-grid--3,
  .card-grid--2 {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .trust-metrics {
    gap: var(--space-xl);
  }

  .screener {
    padding: var(--space-lg);
  }

  .interest-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

  .data-table {
    font-size: var(--text-xs);
  }

  .data-table th,
  .data-table td {
    padding: 8px;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  html { font-size: 15px; }
  .screener__progress { gap: var(--space-sm); }
  .screener__step-label { display: none; }
}