/* FastChargeCheck — base styles. Mobile-first, no external fonts/frameworks. */

:root {
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-text: #1a1d24;
  --color-text-muted: #5b6270;
  --color-border: #e2e5ea;
  --color-accent: #2f6feb;
  --color-accent-dark: #1d4fb0;
  --color-success-bg: #e8f7ee;
  --color-success-text: #1a7a3f;
  --color-success-border: #a9e2bf;
  --color-warning-bg: #fff6e5;
  --color-warning-text: #8a5a00;
  --color-warning-border: #f3d38a;
  --color-danger-bg: #fdeceb;
  --color-danger-text: #b3261e;
  --color-danger-border: #f3b8b3;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 10px;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  font-size: 16px;
}

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

a {
  color: var(--color-accent);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

header.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--color-text);
}
.site-logo span {
  color: var(--color-accent);
}

nav.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
}
nav.site-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
}
nav.site-nav a:hover,
nav.site-nav a:focus {
  color: var(--color-accent);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

h1 {
  font-size: 1.6rem;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

.lede {
  color: var(--color-text-muted);
  margin: 0 0 1.75rem;
  font-size: 1rem;
}

.calculator {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.field {
  margin-bottom: 1.1rem;
  position: relative;
}

.field:last-of-type {
  margin-bottom: 0;
}

.field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.field .field-hint {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.searchable-select {
  position: relative;
}

.searchable-select input[type="text"] {
  width: 100%;
  padding: 0.65rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
}

.searchable-select input[type="text"]:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.searchable-select__options {
  list-style: none;
  margin: 0.25rem 0 0;
  padding: 0.25rem;
  position: absolute;
  z-index: 20;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 260px;
  overflow-y: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(20, 20, 30, 0.12);
}

.searchable-select__options[hidden] {
  display: none;
}

.searchable-select__option {
  padding: 0.55rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.95rem;
}

.searchable-select__option:hover,
.searchable-select__option[aria-selected="true"],
.searchable-select__option.is-active {
  background: var(--color-bg);
}

.searchable-select__option small {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.78rem;
}

.searchable-select__empty {
  padding: 0.6rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.manual-entry {
  margin-top: 0.6rem;
  padding: 0.75rem;
  border: 1px dashed var(--color-border);
  border-radius: 8px;
  display: none;
}
.manual-entry.is-visible {
  display: block;
}
.manual-entry__row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.manual-entry__row label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 0.2rem;
}
.manual-entry__row input[type="number"] {
  width: 100px;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}
.manual-entry__checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.85rem;
}
.manual-entry__checks label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 400;
}

.link-button {
  background: none;
  border: none;
  color: var(--color-accent);
  font-size: 0.82rem;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
}

.submit-row {
  margin-top: 1.4rem;
}

button.btn-primary {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}
button.btn-primary:hover,
button.btn-primary:focus {
  background: var(--color-accent-dark);
}
button.btn-primary:disabled {
  background: var(--color-border);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.result {
  margin-top: 1.5rem;
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--color-border);
}
.result[hidden] {
  display: none;
}
.result--success {
  background: var(--color-success-bg);
  border-color: var(--color-success-border);
  color: var(--color-success-text);
}
.result--warning {
  background: var(--color-warning-bg);
  border-color: var(--color-warning-border);
  color: var(--color-warning-text);
}
.result--danger {
  background: var(--color-danger-bg);
  border-color: var(--color-danger-border);
  color: var(--color-danger-text);
}

.result__verdict {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.result__detail {
  color: var(--color-text);
  font-size: 0.95rem;
  margin: 0 0 0.5rem;
}

.result__meta {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  font-size: 0.88rem;
  color: var(--color-text);
  display: grid;
  gap: 0.35rem;
}
.result__meta li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding-top: 0.35rem;
}
.result__meta li:first-child {
  border-top: none;
  padding-top: 0;
}

.bottleneck-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.08);
  margin-left: 0.4rem;
}

section.info-block {
  margin-top: 2.5rem;
}
section.info-block h2 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}
section.info-block p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.faq dt {
  font-weight: 700;
  margin-top: 0.9rem;
}
.faq dd {
  margin: 0.25rem 0 0;
  color: var(--color-text-muted);
}

footer.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: 2rem;
  padding: 1.5rem 1.25rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}
footer.site-footer a {
  color: var(--color-text-muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Breadcrumb, used on every generated content page */
.breadcrumb {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}
.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}
.breadcrumb-sep {
  margin: 0 0.35rem;
  color: var(--color-border);
}

/* Direct-answer lede used on combo/guide pages, styled like the calculator result panel */
.direct-answer {
  font-size: 1.05rem;
  font-weight: 600;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin: 0 0 1.5rem;
}
.direct-answer--success {
  background: var(--color-success-bg);
  border-color: var(--color-success-border);
  color: var(--color-success-text);
}
.direct-answer--warning {
  background: var(--color-warning-bg);
  border-color: var(--color-warning-border);
  color: var(--color-warning-text);
}
.direct-answer--danger {
  background: var(--color-danger-bg);
  border-color: var(--color-danger-border);
  color: var(--color-danger-text);
}

/* Long-form content pages (about, privacy, terms, guides) */
.prose h2 {
  font-size: 1.2rem;
  margin: 1.75rem 0 0.6rem;
}
.prose h3 {
  font-size: 1.02rem;
  margin: 1.25rem 0 0.4rem;
}
.prose p,
.prose li {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}
.prose ul,
.prose ol {
  padding-left: 1.25rem;
}
.prose strong {
  color: var(--color-text);
}

/* Data tables used on device/charger listing pages */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0 1.5rem;
  font-size: 0.9rem;
}
.data-table th,
.data-table td {
  text-align: left;
  padding: 0.55rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
}
.data-table th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
}
.data-table tbody tr:hover {
  background: var(--color-surface);
}
.data-table-wrap {
  overflow-x: auto;
}

/* Match-quality badges in listing tables */
.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}
.badge-exact {
  background: var(--color-success-bg);
  color: var(--color-success-text);
}
.badge-fallback {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}
.badge-none {
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

/* Cross-link cards ("Other chargers compatible with X") */
.cross-links {
  display: grid;
  gap: 0.6rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}
.cross-links a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9rem;
}
.cross-links a:hover {
  border-color: var(--color-accent);
}
.cross-links small {
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* CTA box linking back to the calculator with prefilled query params */
.cta-box {
  margin-top: 2rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-align: center;
}
.cta-box p {
  margin: 0 0 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}
.cta-box a.btn-primary {
  display: inline-block;
  text-decoration: none;
  padding: 0.7rem 1.4rem;
  width: auto;
}

/* 404 page */
.error-page {
  text-align: center;
  padding: 2rem 0;
}
.error-page .error-code {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-border);
  margin: 0;
}

@media (min-width: 640px) {
  h1 {
    font-size: 2rem;
  }
  .calculator {
    padding: 1.75rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #12141a;
    --color-surface: #1a1d24;
    --color-text: #eceef2;
    --color-text-muted: #9aa1ad;
    --color-border: #2b2f38;
    --color-success-bg: #13291d;
    --color-success-text: #6fdd9a;
    --color-success-border: #1f4530;
    --color-warning-bg: #2c2308;
    --color-warning-text: #f0c060;
    --color-warning-border: #4a3a10;
    --color-danger-bg: #2c1614;
    --color-danger-text: #f29a94;
    --color-danger-border: #4a231f;
  }
}