/* ============================================================
   PrepByZip — Global Stylesheet
   Mobile-first responsive layout, system font stack, no framework.
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #E05C00;
  --color-primary-hover: #C85000;
  --color-primary-light: #FFF3EB;
  --color-nav: #1B2A4A;
  --color-nav-light: #253a63;
  --color-bg: #F9F7F4;
  --color-text: #1A1A1A;
  --color-text-muted: #555;
  --color-text-light: #777;
  --color-border: #DDD;
  --color-card-bg: #FFF;
  --color-risk-green: #2E7D32;
  --color-risk-amber: #F57C00;
  --color-risk-red: #C62828;
  --color-risk-green-bg: #E8F5E9;
  --color-risk-amber-bg: #FFF3E0;
  --color-risk-red-bg: #FFEBEE;
  --color-star: #F5A623;
  --color-star-empty: #CCC;
  --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1100px;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
}

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

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

body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  color: var(--color-nav);
  font-weight: 700;
}

h1 { font-size: 2rem; margin-bottom: 0.75rem; }
h2 { font-size: 1.5rem; margin-bottom: 0.6rem; margin-top: 2rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.5rem; margin-top: 1.5rem; }

p { margin-bottom: 1rem; }
ul, ol { margin-bottom: 1rem; padding-left: 1.5rem; }
li { margin-bottom: 0.3rem; }

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.hidden { display: none !important; }

/* --- Sticky Navigation --- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-nav);
  box-shadow: var(--shadow);
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0;
  padding-bottom: 0;
  min-height: 56px;
}

.site-nav__logo {
  color: #FFF;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

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

.site-nav__logo span {
  color: var(--color-primary);
}

.site-nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.site-nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #FFF;
  border-radius: 2px;
  transition: var(--transition);
}

.site-nav__links {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  background: var(--color-nav);
  padding: 0.5rem 0;
  box-shadow: var(--shadow-lg);
  list-style: none;
}

.site-nav__links.open {
  display: flex;
}

.site-nav__links li a {
  display: block;
  color: #FFF;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background var(--transition);
}

.site-nav__links li a:hover {
  background: var(--color-nav-light);
  color: var(--color-primary);
  text-decoration: none;
}

.site-nav__links li a.nav-coffee {
  color: var(--color-primary);
}

/* --- Hero Section --- */
.hero {
  background: linear-gradient(135deg, var(--color-nav) 0%, #2a3f6e 100%);
  color: #FFF;
  padding: 3rem 1rem;
  text-align: center;
}

.hero h1 {
  color: #FFF;
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.hero p {
  color: rgba(255,255,255,0.85);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero__zip-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 400px;
  margin: 0 auto;
  align-items: stretch;
}

.hero__zip-input {
  padding: 0.85rem 1rem;
  font-size: 1.1rem;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.1);
  color: #FFF;
  text-align: center;
  letter-spacing: 0.15em;
  outline: none;
  transition: border-color var(--transition);
}

.hero__zip-input::placeholder {
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
}

.hero__zip-input:focus {
  border-color: var(--color-primary);
  background: rgba(255,255,255,0.15);
}

.hero__zip-error {
  color: #FF8A80;
  font-size: 0.9rem;
  min-height: 1.4em;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.4;
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #FFF;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(224,92,0,0.3);
}

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

.btn-secondary {
  background: var(--color-card-bg);
  color: var(--color-nav);
  border: 2px solid var(--color-border);
}

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

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

/* --- Results Container --- */
.results {
  padding: 2rem 0;
}

.results__location {
  text-align: center;
  margin-bottom: 1.5rem;
}

.results__location h2 {
  margin-top: 0;
  font-size: 1.4rem;
}

.results__location .fallback-note {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-style: italic;
}

/* --- Risk Cards --- */
.risk-cards {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.risk-card {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  border-left: 4px solid var(--color-border);
}

.risk-card--low { border-left-color: var(--color-risk-green); }
.risk-card--moderate { border-left-color: var(--color-risk-amber); }
.risk-card--high { border-left-color: var(--color-risk-red); }

.risk-card__icon {
  font-size: 2rem;
  flex-shrink: 0;
  width: 48px;
  text-align: center;
}

.risk-card__body h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

.risk-card__body .risk-level {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-left: 0.5rem;
}

.risk-level--low {
  background: var(--color-risk-green-bg);
  color: var(--color-risk-green);
}

.risk-level--moderate {
  background: var(--color-risk-amber-bg);
  color: var(--color-risk-amber);
}

.risk-level--high {
  background: var(--color-risk-red-bg);
  color: var(--color-risk-red);
}

.risk-card__body p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* --- Kit Tiers --- */
.kit-section {
  margin-top: 2rem;
}

.kit-section > h2 {
  text-align: center;
  margin-top: 0;
}

.kit-tiers {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.kit-tier {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.kit-tier__header {
  padding: 1rem 1.25rem;
  color: #FFF;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.kit-tier__header h3 {
  color: #FFF;
  margin: 0;
  font-size: 1.15rem;
}

.kit-tier__header .price-range {
  font-size: 0.9rem;
  opacity: 0.9;
}

.kit-tier--essentials .kit-tier__header {
  background: var(--color-risk-green);
}

.kit-tier--solid .kit-tier__header {
  background: var(--color-risk-amber);
}

.kit-tier--full .kit-tier__header {
  background: var(--color-nav);
}

.kit-tier__items {
  padding: 1rem 1.25rem;
  list-style: none;
}

.kit-item {
  padding: 0.75rem 0;
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.kit-item:last-child {
  border-bottom: none;
}

.kit-item__name {
  font-weight: 600;
  font-size: 0.95rem;
}

.kit-item__reason {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.kit-item__link {
  font-size: 0.85rem;
  font-weight: 600;
}

.kit-item__link::after {
  content: ' \2192';
}

/* --- How It Works --- */
.how-it-works {
  padding: 3rem 0;
}

.how-it-works h2 {
  text-align: center;
  margin-top: 0;
  margin-bottom: 2rem;
}

.steps {
  display: grid;
  gap: 1.5rem;
}

.step {
  text-align: center;
  padding: 1.5rem;
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #FFF;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.step h3 {
  margin-top: 0;
}

.step p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* --- Guide Links Section --- */
.guide-links {
  padding: 3rem 0;
  background: var(--color-card-bg);
}

.guide-links h2 {
  text-align: center;
  margin-top: 0;
  margin-bottom: 2rem;
}

.guide-grid {
  display: grid;
  gap: 1rem;
}

.guide-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--transition);
}

.guide-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--color-text);
}

.guide-card__icon {
  font-size: 1.75rem;
  flex-shrink: 0;
}

.guide-card__title {
  font-weight: 600;
  font-size: 0.95rem;
}

/* --- Review Page --- */
.aggregate-rating {
  text-align: center;
  padding: 2rem 1rem;
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.aggregate-rating__score {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-nav);
}

.aggregate-rating__stars {
  font-size: 1.5rem;
  color: var(--color-star);
  margin: 0.5rem 0;
}

.aggregate-rating__count {
  color: var(--color-text-muted);
}

/* Star rating widget */
.star-widget {
  display: flex;
  gap: 0.25rem;
  margin: 1rem 0;
  justify-content: center;
}

.star-widget__star {
  font-size: 2.5rem;
  color: var(--color-star-empty);
  cursor: pointer;
  transition: color 0.15s, transform 0.15s;
  background: none;
  border: none;
  padding: 0;
  line-height: 1;
  user-select: none;
}

.star-widget__star:hover,
.star-widget__star.hovered {
  color: var(--color-star);
  transform: scale(1.15);
}

.star-widget__star.selected {
  color: var(--color-star);
}

/* Review submission */
.review-form {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.review-form h2 {
  margin-top: 0;
  text-align: center;
}

.review-form__field {
  margin-bottom: 1rem;
}

.review-form__field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.review-form__field textarea,
.review-form__field input[type="text"] {
  width: 100%;
  padding: 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-stack);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color var(--transition);
}

.review-form__field textarea:focus,
.review-form__field input[type="text"]:focus {
  outline: none;
  border-color: var(--color-primary);
}

.review-form__char-count {
  text-align: right;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.review-form__char-count.limit {
  color: var(--color-risk-red);
}

.review-form__message {
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  text-align: center;
}

.review-form__message--success {
  background: var(--color-risk-green-bg);
  color: var(--color-risk-green);
}

.review-form__message--error {
  background: var(--color-risk-red-bg);
  color: var(--color-risk-red);
}

/* Review cards */
.review-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.review-card {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.review-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.review-card__stars {
  color: var(--color-star);
  font-size: 1.1rem;
}

.review-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.review-card__comment {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.review-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.review-card__region {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.review-card__report {
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.review-card__report:hover {
  background: var(--color-risk-red-bg);
  color: var(--color-risk-red);
}

/* --- Stats Page --- */
.stat-tiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-tile {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  text-align: center;
}

.stat-tile__number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat-tile__label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.chart-container {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.chart-container h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  text-align: center;
}

.chart-container canvas {
  width: 100% !important;
  max-height: 350px;
}

.privacy-notice {
  text-align: center;
  padding: 1.5rem;
  background: var(--color-risk-green-bg);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--color-risk-green);
}

/* --- Guide Article Layout --- */
.guide-article {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.guide-article h1 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.guide-article h2 {
  font-size: 1.35rem;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 0.4rem;
}

.guide-article h3 {
  font-size: 1.1rem;
}

.guide-article p,
.guide-article ul,
.guide-article ol {
  font-size: 1rem;
  line-height: 1.7;
}

.guide-article blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 0.75rem 1rem;
  margin: 1.5rem 0;
  background: var(--color-primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
}

.guide-faq {
  margin-top: 2rem;
}

.guide-faq details {
  margin-bottom: 0.75rem;
  background: var(--color-card-bg);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.guide-faq summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.guide-faq summary::after {
  content: '+';
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.guide-faq details[open] summary::after {
  content: '\2212';
}

.guide-faq details > div {
  padding: 0 1.25rem 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.cta-box {
  margin: 2.5rem 0;
  padding: 2rem;
  background: linear-gradient(135deg, var(--color-nav), #2a3f6e);
  color: #FFF;
  border-radius: var(--radius);
  text-align: center;
}

.cta-box h3 {
  color: #FFF;
  margin-top: 0;
  font-size: 1.25rem;
}

.cta-box p {
  color: rgba(255,255,255,0.85);
  margin-bottom: 1.25rem;
}

.cta-box .btn-primary {
  font-size: 1.05rem;
  padding: 0.85rem 2rem;
}

/* --- About Page --- */
.about-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.about-content h1 {
  margin-bottom: 1.5rem;
}

.data-source {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.data-source h3 {
  margin-top: 0;
  color: var(--color-primary);
}

.disclaimer {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--color-risk-amber-bg);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-risk-amber);
  font-size: 0.9rem;
}

/* --- Footer --- */
.site-footer {
  margin-top: auto;
  background: var(--color-nav);
  color: rgba(255,255,255,0.7);
  padding: 2.5rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h4 {
  color: #FFF;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 0.4rem;
}

.footer-col a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.footer-col a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
}

.footer-bottom p {
  margin-bottom: 0.5rem;
}

.footer-bottom .disclaimer-text {
  font-size: 0.75rem;
  opacity: 0.6;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Loading Spinner --- */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: #FFF;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.btn .spinner {
  width: 18px;
  height: 18px;
  border-width: 2px;
}

/* --- Responsive: Tablet+ --- */
@media (min-width: 600px) {
  .hero { padding: 4rem 1rem; }
  .hero h1 { font-size: 2.25rem; }

  .hero__zip-form {
    flex-direction: row;
    max-width: 480px;
  }

  .hero__zip-input { flex: 1; text-align: left; }

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

  .kit-tiers {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }

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

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

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

/* --- Responsive: Desktop --- */
@media (min-width: 900px) {
  h1 { font-size: 2.5rem; }

  .site-nav__toggle { display: none; }

  .site-nav__links {
    display: flex;
    flex-direction: row;
    position: static;
    background: none;
    padding: 0;
    box-shadow: none;
    gap: 0;
    list-style: none;
  }

  .site-nav__links li a {
    padding: 1rem 1.25rem;
  }

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

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

  .guide-article h1 { font-size: 2.25rem; }
}

/* --- Print --- */
@media print {
  .site-nav, .site-footer, .cta-box, .btn { display: none; }
  body { background: #FFF; }
  .container { max-width: 100%; }
}