/*
Theme Name: kj to calories
Theme URI: https://kjtocalories.org/
Author: kj to calories
Author URI: https://kjtocalories.org/
Description: Fast, light-blue converter theme for kjtocalories.org. Ships the kJ ⇄ calorie converter, daily kJ calculator, macro calculator, food label calculator, exercise burn calculator, conversion charts and food database as shortcodes, so every page stays a normal editable WordPress page or post.
Version: 1.0.0
Requires at least: 6.2
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: kjtocal
*/

/* ---------- Tokens ---------- */
:root {
  --sky-50: #f0f9ff;
  --sky-100: #e0f2fe;
  --sky-200: #bae6fd;
  --sky-300: #7dd3fc;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;
  --sky-700: #0369a1;
  --sky-800: #075985;
  --sky-900: #0c4a6e;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #526073;
  --line: #dbe7f0;
  --bg: #ffffff;
  --bg-soft: #f5fbff;
  --good: #047857;
  --warn: #b45309;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(12, 74, 110, .06), 0 8px 24px rgba(12, 74, 110, .08);
  --wrap: 1180px;
  --read: 800px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; }
a { color: var(--sky-700); text-underline-offset: 3px; }
a:hover { color: var(--sky-900); }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.25; letter-spacing: -.015em; margin: 1.8em 0 .6em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); font-weight: 800; margin-top: 0; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
h4 { font-size: 1.05rem; font-weight: 700; }
p { margin: 0 0 1.1em; }
strong { color: var(--ink); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
:focus-visible { outline: 3px solid var(--sky-400); outline-offset: 2px; }
.screen-reader-text {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px); white-space: nowrap;
}
.skip-link:focus {
  position: fixed; top: 8px; left: 8px; z-index: 1000; width: auto; height: auto; clip: auto;
  background: #fff; padding: 10px 14px; border-radius: 8px; box-shadow: var(--shadow);
}
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.read { max-width: var(--read); margin-left: auto; margin-right: auto; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 1.2rem; letter-spacing: -.02em; }
.brand-mark {
  display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--sky-300), var(--sky-500)); color: #fff;
  font-size: .8rem; font-weight: 800; letter-spacing: -.02em;
}
.brand-name b { color: var(--sky-600); font-weight: 800; }
.nav-toggle {
  display: none; border: 1px solid var(--line); background: #fff; border-radius: 10px;
  width: 44px; height: 44px; cursor: pointer; color: var(--ink);
}
.primary-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; align-items: center; }
.primary-nav li { position: relative; }
.primary-nav a {
  display: block; padding: 8px 12px; border-radius: 8px; text-decoration: none;
  color: var(--ink-2); font-weight: 600; font-size: .95rem;
}
.primary-nav a:hover, .primary-nav .current-menu-item > a, .primary-nav .current-menu-ancestor > a { background: var(--sky-50); color: var(--sky-700); }
.primary-nav .sub-menu {
  display: none; position: absolute; top: 100%; left: 0; min-width: 250px; padding: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); flex-direction: column; align-items: stretch;
}
.primary-nav li:hover > .sub-menu, .primary-nav li:focus-within > .sub-menu { display: flex; }
.primary-nav .menu-item-has-children > a::after { content: " ▾"; font-size: .75em; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-grid; place-items: center; }
  .primary-nav { display: none; position: absolute; top: 66px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); max-height: calc(100vh - 66px); overflow: auto; }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; padding: 10px 16px 16px; }
  .primary-nav .sub-menu { display: flex; position: static; box-shadow: none; border: 0; padding: 0 0 0 12px; min-width: 0; }
  .primary-nav .menu-item-has-children > a::after { content: ""; }
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(900px 300px at 85% -10%, rgba(56, 189, 248, .35), transparent 70%),
    radial-gradient(700px 260px at 0% 0%, rgba(125, 211, 252, .35), transparent 70%),
    linear-gradient(180deg, var(--sky-50), #fff);
  padding: 48px 0 26px;
  border-bottom: 1px solid var(--sky-100);
}
.hero .eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  color: var(--sky-700); background: #fff; border: 1px solid var(--sky-200); padding: 4px 10px; border-radius: 999px; margin-bottom: 14px;
}
.hero h1 { margin-bottom: 10px; }
.hero .lead { font-size: 1.15rem; color: var(--muted); max-width: 760px; margin: 0; }
.hero.is-center { text-align: center; }
.hero.is-center .lead { margin: 0 auto; }
.breadcrumbs { font-size: .85rem; color: var(--muted); margin-bottom: 12px; }
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--sky-700); }
.breadcrumbs span[aria-hidden] { margin: 0 6px; }
.post-meta { font-size: .9rem; color: var(--muted); margin-top: 12px; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Layout ---------- */
.site-main { padding: 34px 0 60px; }
.layout-sidebar { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 44px; align-items: start; }
.sidebar { position: sticky; top: 86px; display: grid; gap: 20px; }
@media (max-width: 980px) { .layout-sidebar { grid-template-columns: 1fr; } .sidebar { position: static; } }

/* ---------- Entry content (block editor output) ---------- */
.entry-content { max-width: var(--read); margin: 0 auto; }
.entry-content > *:first-child { margin-top: 0; }
.entry-content h2 { padding-top: .2em; }
.entry-content h2::before {
  content: ""; display: block; width: 44px; height: 4px; border-radius: 4px;
  background: linear-gradient(90deg, var(--sky-400), var(--sky-600)); margin-bottom: 14px;
}
.entry-content ul, .entry-content ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.entry-content li { margin: .35em 0; }
.entry-content li::marker { color: var(--sky-600); font-weight: 700; }
.entry-content .alignwide { max-width: 1040px; margin-left: 50%; transform: translateX(-50%); width: calc(100vw - 40px); }
.entry-content .alignfull { width: 100vw; margin-left: 50%; transform: translateX(-50%); }
.layout-sidebar .entry-content .alignwide, .layout-sidebar .entry-content .alignfull { width: 100%; margin-left: 0; transform: none; }
.entry-content blockquote, .entry-content .wp-block-quote {
  margin: 1.5em 0; padding: 16px 20px; border-left: 4px solid var(--sky-400); background: var(--sky-50); border-radius: 0 12px 12px 0; color: var(--ink);
}
.entry-content .wp-block-quote p:last-child { margin: 0; }
.entry-content code { background: var(--sky-50); border: 1px solid var(--sky-100); padding: 1px 6px; border-radius: 6px; font-size: .92em; color: var(--sky-900); }

/* Tables */
.wp-block-table, .kjc-table-wrap { margin: 1.5em 0; overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; }
.wp-block-table table, .kjc-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.wp-block-table th, .wp-block-table td, .kjc-table th, .kjc-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.wp-block-table thead th, .kjc-table thead th { background: var(--sky-50); color: var(--ink); font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
.wp-block-table tbody tr:nth-child(even), .kjc-table tbody tr:nth-child(even) { background: #fbfdff; }
.wp-block-table tbody tr:hover, .kjc-table tbody tr:hover { background: var(--sky-50); }
.wp-block-table tr:last-child td, .kjc-table tr:last-child td { border-bottom: 0; }
.wp-block-table figcaption { font-size: .85rem; color: var(--muted); padding: 8px 14px; margin: 0; border-top: 1px solid var(--line); }
.wp-block-table.is-style-stripes { border-bottom: 1px solid var(--line); }

/* FAQ — core/details */
.entry-content .wp-block-details {
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; margin: 10px 0; padding: 0; transition: border-color .15s;
}
.entry-content .wp-block-details[open] { border-color: var(--sky-300); box-shadow: var(--shadow); }
.entry-content .wp-block-details summary {
  cursor: pointer; list-style: none; padding: 16px 48px 16px 18px; font-weight: 700; color: var(--ink); position: relative;
}
.entry-content .wp-block-details summary::-webkit-details-marker { display: none; }
.entry-content .wp-block-details summary::after {
  content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; display: grid; place-items: center; border-radius: 50%;
  background: var(--sky-50); color: var(--sky-700); font-weight: 800;
}
.entry-content .wp-block-details[open] summary::after { content: "−"; }
.entry-content .wp-block-details > *:not(summary) { padding: 0 18px; }
.entry-content .wp-block-details > *:last-child { padding-bottom: 16px; margin-bottom: 0; }

/* Callouts: group blocks with className */
.entry-content .kjc-callout, .entry-content .kjc-formula, .entry-content .kjc-note {
  border-radius: var(--radius); padding: 20px 22px; margin: 1.6em 0;
}
.entry-content .kjc-callout { background: var(--sky-50); border: 1px solid var(--sky-200); }
.entry-content .kjc-formula { background: linear-gradient(135deg, var(--sky-600), var(--sky-800)); color: #fff; }
.entry-content .kjc-formula * { color: #fff; }
.entry-content .kjc-formula p { font-size: 1.1rem; margin: .3em 0; }
.entry-content .kjc-note { background: #fffbeb; border: 1px solid #fde68a; }
.entry-content .kjc-callout > :last-child, .entry-content .kjc-formula > :last-child, .entry-content .kjc-note > :last-child { margin-bottom: 0; }
.entry-content .kjc-callout > :first-child, .entry-content .kjc-formula > :first-child, .entry-content .kjc-note > :first-child { margin-top: 0; }
.entry-content .kjc-callout h3, .entry-content .kjc-formula h3, .entry-content .kjc-note h3 { margin-top: 0; }

/* Card grids: columns blocks with className kjc-cards */
.entry-content .kjc-cards { gap: 16px; margin: 1.5em 0; }
.entry-content .kjc-cards .wp-block-column {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; box-shadow: 0 1px 2px rgba(12, 74, 110, .04);
}
.entry-content .kjc-cards .wp-block-column h3 { margin-top: 0; font-size: 1.08rem; }
.entry-content .kjc-cards .wp-block-column p:last-child { margin-bottom: 0; }
.entry-content .wp-block-columns { display: flex; flex-wrap: wrap; gap: 16px; }
.entry-content .wp-block-column { flex: 1 1 220px; min-width: 0; }

/* Link lists */
.entry-content .kjc-links { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.entry-content .kjc-links li { margin: 0; }
.entry-content .kjc-links li::marker { content: ""; }
.entry-content .kjc-links a {
  display: block; padding: 10px 14px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; font-weight: 600; color: var(--ink); background: #fff; font-size: .95rem;
}
.entry-content .kjc-links a:hover { border-color: var(--sky-400); background: var(--sky-50); color: var(--sky-800); }

/* Buttons */
.btn, .wp-block-button__link, .entry-content .wp-block-button__link {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; border: 1px solid transparent; cursor: pointer;
  background: var(--sky-600); color: #fff; font-weight: 700; font-size: .95rem; text-decoration: none; line-height: 1.2; font-family: inherit;
}
.btn:hover, .wp-block-button__link:hover { background: var(--sky-700); color: #fff; }
.btn-ghost { background: #fff; color: var(--sky-800); border-color: var(--sky-200); }
.btn-ghost:hover { background: var(--sky-50); color: var(--sky-900); }
.btn-sm { padding: 7px 12px; font-size: .85rem; border-radius: 8px; }

/* ---------- Tool card ---------- */
.kjc-tool {
  max-width: 1000px; margin: 0 auto 2.5rem; background: #fff; border: 1px solid var(--sky-200);
  border-radius: 20px; box-shadow: 0 2px 4px rgba(12, 74, 110, .05), 0 18px 44px rgba(14, 165, 233, .14); overflow: hidden;
}
.entry-content .kjc-tool { margin-left: 50%; transform: translateX(-50%); width: min(1000px, calc(100vw - 40px)); }
.layout-sidebar .entry-content .kjc-tool { margin-left: 0; transform: none; width: 100%; }
.kjc-tool-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 14px 20px; background: linear-gradient(90deg, var(--sky-50), #fff); border-bottom: 1px solid var(--sky-100);
}
.kjc-tool-title { margin: 0; font-size: 1rem; font-weight: 800; color: var(--ink); display: flex; gap: 8px; align-items: center; }
.kjc-tool-title::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--sky-500); box-shadow: 0 0 0 4px var(--sky-100); }
.kjc-tool-body { display: grid; grid-template-columns: 1.1fr 1fr; }
.kjc-tool-body > div { padding: 22px; min-width: 0; }
.kjc-tool-body .kjc-out { background: var(--bg-soft); border-left: 1px solid var(--sky-100); }
@media (max-width: 760px) {
  .kjc-tool-body { grid-template-columns: 1fr; }
  .kjc-tool-body .kjc-out { border-left: 0; border-top: 1px solid var(--sky-100); }
}
.kjc-field { margin-bottom: 16px; }
.kjc-field label, .kjc-label { display: block; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-bottom: 6px; }
.kjc-input-row { display: flex; align-items: stretch; border: 2px solid var(--sky-200); border-radius: 12px; overflow: hidden; background: #fff; transition: border-color .15s, box-shadow .15s; }
.kjc-input-row:focus-within { border-color: var(--sky-500); box-shadow: 0 0 0 4px var(--sky-100); }
.kjc-input-row input, .kjc-input-row select {
  flex: 1; min-width: 0; border: 0; outline: 0; padding: 12px 14px; font: inherit; font-size: 1.1rem; font-weight: 600; color: var(--ink); background: transparent;
}
.kjc-input-row .kjc-unit { display: grid; place-items: center; padding: 0 14px; background: var(--sky-50); color: var(--sky-800); font-weight: 800; font-size: .9rem; border-left: 1px solid var(--sky-100); white-space: nowrap; }
.kjc-big input { font-size: 1.8rem; padding: 14px 16px; }
.kjc-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.kjc-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 520px) { .kjc-grid-3 { grid-template-columns: 1fr 1fr; } }
.kjc-select {
  width: 100%; border: 2px solid var(--sky-200); border-radius: 12px; padding: 11px 12px; font: inherit; font-weight: 600; color: var(--ink); background: #fff;
}
.kjc-select:focus { border-color: var(--sky-500); outline: 0; box-shadow: 0 0 0 4px var(--sky-100); }
.kjc-seg { display: inline-flex; background: var(--sky-50); border: 1px solid var(--sky-200); border-radius: 12px; padding: 4px; gap: 4px; flex-wrap: wrap; }
.kjc-seg button {
  border: 0; background: transparent; padding: 8px 12px; border-radius: 9px; font: inherit; font-weight: 700; font-size: .88rem; color: var(--sky-800); cursor: pointer;
}
.kjc-seg button[aria-pressed="true"] { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(12, 74, 110, .15); }
.kjc-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 16px; }
.kjc-chip {
  border: 1px solid var(--sky-200); background: #fff; color: var(--sky-800); padding: 6px 11px; border-radius: 999px;
  font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer;
}
.kjc-chip:hover { background: var(--sky-50); border-color: var(--sky-400); }
.kjc-swap {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--sky-200); background: #fff; color: var(--sky-800);
  padding: 7px 12px; border-radius: 10px; font: inherit; font-weight: 700; font-size: .85rem; cursor: pointer;
}
.kjc-swap:hover { background: var(--sky-50); }
.kjc-result-label { font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.kjc-result {
  font-size: clamp(2.4rem, 7vw, 3.4rem); font-weight: 800; color: var(--sky-700); line-height: 1.1; margin: 6px 0 2px;
  font-variant-numeric: tabular-nums; word-break: break-word;
}
.kjc-result-unit { color: var(--ink); font-weight: 700; }
.kjc-sub { color: var(--muted); font-size: .92rem; }
.kjc-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0; }
.kjc-stat { background: #fff; border: 1px solid var(--sky-100); border-radius: 12px; padding: 10px; text-align: center; }
.kjc-stat b { display: block; font-size: 1.15rem; color: var(--ink); font-variant-numeric: tabular-nums; }
.kjc-stat span { font-size: .75rem; color: var(--muted); font-weight: 600; }
.kjc-formula-line { font-size: .9rem; background: #fff; border: 1px dashed var(--sky-300); border-radius: 10px; padding: 10px 12px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.kjc-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.kjc-bar { height: 10px; background: var(--sky-100); border-radius: 999px; overflow: hidden; margin: 6px 0 4px; }
.kjc-bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--sky-400), var(--sky-600)); border-radius: 999px; width: 0; transition: width .3s; }
.kjc-rows { display: grid; gap: 8px; margin: 12px 0; }
.kjc-row { display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px; background: #fff; border: 1px solid var(--sky-100); border-radius: 10px; font-size: .95rem; }
.kjc-row b { color: var(--ink); font-variant-numeric: tabular-nums; }
.kjc-row.is-key { border-color: var(--sky-300); background: var(--sky-50); }
.kjc-toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px); opacity: 0; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; font-size: .9rem; font-weight: 600; transition: all .2s; z-index: 200; pointer-events: none; }
.kjc-toast.is-on { opacity: 1; transform: translateX(-50%) translateY(0); }
.kjc-err { color: #b91c1c; font-size: .85rem; margin-top: 6px; min-height: 1em; }

/* Food finder */
.kjc-foods { margin: 1.5em 0; }
.kjc-foods-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 12px; }
.kjc-foods-bar .kjc-input-row { flex: 1 1 260px; }
.kjc-foods-count { font-size: .85rem; color: var(--muted); }
.kjc-table td.num, .kjc-table th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.kjc-table .cat { font-size: .78rem; color: var(--sky-800); background: var(--sky-50); border-radius: 999px; padding: 2px 8px; white-space: nowrap; }
.kjc-table-scroll { max-height: 640px; overflow: auto; }
.kjc-table-scroll thead th { position: sticky; top: 0; z-index: 1; }

/* ---------- Cards / listings ---------- */
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 20px; }
.post-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.post-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--sky-200); }
.post-card-thumb { aspect-ratio: 16/9; background: linear-gradient(135deg, var(--sky-100), var(--sky-300)); display: grid; place-items: center; color: var(--sky-900); font-weight: 800; font-size: 1.6rem; text-align: center; padding: 16px; }
.post-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.post-card-cat { font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--sky-700); text-decoration: none; }
.post-card h2, .post-card h3 { font-size: 1.15rem; margin: 0; }
.post-card h2 a, .post-card h3 a { color: var(--ink); text-decoration: none; }
.post-card h2 a:hover, .post-card h3 a:hover { color: var(--sky-700); }
.post-card p { margin: 0; color: var(--muted); font-size: .95rem; }
.post-card .more { margin-top: auto; font-weight: 700; font-size: .9rem; text-decoration: none; }
.cat-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.cat-filter a { padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); text-decoration: none; font-weight: 600; font-size: .9rem; color: var(--ink-2); background: #fff; }
.cat-filter a:hover, .cat-filter a.is-active { background: var(--sky-600); color: #fff; border-color: var(--sky-600); }
.pagination { margin-top: 36px; }
.pagination .nav-links { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.pagination .page-numbers { padding: 8px 14px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; font-weight: 600; }
.pagination .page-numbers.current { background: var(--sky-600); color: #fff; border-color: var(--sky-600); }

/* Sidebar widgets */
.widget { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.widget-title { font-size: 1rem; margin: 0 0 12px; }
.widget ul { list-style: none; margin: 0; padding: 0; }
.widget li { padding: 7px 0; border-bottom: 1px solid var(--line); font-size: .95rem; }
.widget li:last-child { border-bottom: 0; }
.widget a { text-decoration: none; font-weight: 600; }
.mini-conv .kjc-input-row input { font-size: 1rem; padding: 10px 12px; }
.mini-conv output { display: block; font-size: 1.6rem; font-weight: 800; color: var(--sky-700); margin-top: 10px; font-variant-numeric: tabular-nums; }

/* Related + author box */
.related { margin-top: 48px; }
.related h2 { font-size: 1.4rem; }
.toc { background: var(--bg-soft); border: 1px solid var(--sky-100); border-radius: var(--radius); padding: 16px 20px; margin: 0 0 28px; }
.toc strong { display: block; margin-bottom: 6px; }
.toc ol { margin: 0; padding-left: 1.2em; font-size: .95rem; }
.toc li { margin: 3px 0; }
.toc a { text-decoration: none; }
.updated-box { font-size: .88rem; color: var(--muted); border-top: 1px solid var(--line); margin-top: 40px; padding-top: 16px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--sky-900); color: #cfe8f7; padding: 54px 0 26px; margin-top: 30px; }
.site-footer a { color: #e6f5ff; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h2 { color: #fff; font-size: .95rem; text-transform: uppercase; letter-spacing: .06em; margin: 0 0 12px; }
.site-footer h2::before { display: none; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 7px 0; font-size: .95rem; }
.site-footer .brand { color: #fff; }
.site-footer .brand-name b { color: var(--sky-300); }
.footer-about { font-size: .95rem; margin-top: 12px; max-width: 360px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .14); margin-top: 36px; padding-top: 20px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: .85rem; }

/* Search form */
.search-form { display: flex; gap: 8px; }
.search-form input[type="search"] { flex: 1; border: 2px solid var(--sky-200); border-radius: 10px; padding: 10px 12px; font: inherit; }
.search-form input[type="search"]:focus { border-color: var(--sky-500); outline: 0; }

/* 404 */
.notfound { text-align: center; padding: 40px 0; }
.notfound .big { font-size: 5rem; font-weight: 800; color: var(--sky-300); line-height: 1; }

/* Share links */
.share { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 32px 0 8px; padding-top: 18px; border-top: 1px solid var(--line); }
.share-label { font-weight: 700; color: var(--ink); margin-right: 4px; font-size: .95rem; }
.share-btn { display: inline-flex; align-items: center; padding: 7px 13px; border-radius: 999px; border: 1px solid var(--sky-200); background: #fff; color: var(--sky-800); font: inherit; font-size: .85rem; font-weight: 600; text-decoration: none; cursor: pointer; }
.share-btn:hover { background: var(--sky-50); border-color: var(--sky-400); color: var(--sky-900); }
.hero.is-center .post-meta, .hero.is-center .breadcrumbs { justify-content: center; }
.hero .post-meta a { color: var(--sky-800); font-weight: 600; }

/* Images and video in content */
.entry-content .wp-block-image, .entry-content .wp-block-video { margin: 1.8em 0; }
.entry-content .wp-block-image img, .entry-content .wp-block-video video { width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--sky-100); box-shadow: var(--shadow); display: block; background: var(--sky-50); }
.entry-content .wp-block-image img.is-portrait { max-width: 360px; margin: 0 auto; }
.entry-content .wp-block-video video { aspect-ratio: 16 / 9; }
.entry-content figcaption { font-size: .88rem; color: var(--muted); text-align: center; margin-top: 8px; }

/* Range tables */
.kjc-table tr.is-hit td { background: var(--sky-100); }
.kjc-install { margin: 1.5em 0; padding: 18px 20px; border: 1px dashed var(--sky-300); border-radius: var(--radius); background: var(--bg-soft); }
.kjc-install .kjc-sub { margin: 8px 0 0; }

/* Collapsible table of contents */
.toc summary { cursor: pointer; font-weight: 700; color: var(--ink); list-style: none; }
.toc summary::-webkit-details-marker { display: none; }
.toc summary::after { content: " +"; color: var(--sky-700); }
.toc[open] summary::after { content: " −"; }
.toc nav { margin-top: 6px; }

/* Range tables: jump links + collapsible groups */
.kjc-jumps { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 12px; }
.kjc-jumps a { padding: 4px 10px; border: 1px solid var(--sky-200); border-radius: 999px; font-size: .82rem; font-weight: 600; text-decoration: none; background: #fff; }
.kjc-group { border: 1px solid var(--line); border-radius: var(--radius-sm); margin: 8px 0; background: #fff; }
.kjc-group summary { cursor: pointer; padding: 10px 14px; font-weight: 700; color: var(--ink); }
.kjc-group .kjc-table-wrap { margin: 0; border: 0; border-top: 1px solid var(--line); border-radius: 0; }
.widget-title { font-size: 1rem; font-weight: 800; color: var(--ink); margin: 0 0 12px; }

/* Archive intro text */
.archive-intro { max-width: var(--read); margin: 48px auto 0; }

/* Small screens: keep the calculator close to the top */
@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero { padding: 26px 0 18px; }
  .hero .eyebrow { margin-bottom: 10px; }
  .hero .lead { font-size: 1rem; }
  .site-main { padding-top: 22px; }
  .hero .post-meta { gap: 2px 12px; font-size: .82rem; margin-top: 10px; }
  .kjc-table .col-x { display: none; }
  .kjc-tool-head { padding: 12px 16px; }
  .kjc-tool-body > div { padding: 16px; }
  .kjc-big input { font-size: 1.5rem; padding: 12px 14px; }
  .kjc-stats { gap: 6px; }
  .kjc-stat b { font-size: 1rem; }
  .wp-block-table th, .wp-block-table td, .kjc-table th, .kjc-table td { padding: 8px 10px; }
}

/* Print */
@media print {
  .site-header, .site-footer, .sidebar, .kjc-actions, .nav-toggle { display: none !important; }
  .kjc-tool { box-shadow: none; }
}

/* ---------- Language switcher (footer) ---------- */
.footer-lang { margin-top: 34px; }
.lang-switch ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: 8px; }
.lang-switch li { margin: 0; }
.lang-switch a { display: flex; align-items: center; justify-content: center; min-height: 40px; border: 1px solid rgba(255, 255, 255, .28); border-radius: 8px; font-weight: 700; font-size: .9rem; letter-spacing: .03em; color: #e6f5ff; }
.lang-switch a:hover { border-color: var(--sky-300); background: rgba(125, 211, 252, .12); text-decoration: none; color: #fff; }
.lang-switch a.is-active { border: 2px solid var(--sky-300); background: rgba(125, 211, 252, .2); color: #fff; }
[dir="rtl"] .entry-content ul, [dir="rtl"] .entry-content ol { padding-left: 0; padding-right: 1.4em; }
[dir="rtl"] .toc ol { padding-left: 0; padding-right: 1.2em; }
[dir="rtl"] .kjc-input-row input, [dir="rtl"] .kjc-result { direction: ltr; text-align: right; }
[dir="rtl"] .kjc-formula-line, [dir="rtl"] .kjc-rows b, [dir="rtl"] .kjc-chip { direction: ltr; unicode-bidi: isolate; }
[dir="rtl"] .kjc-formula-line { text-align: right; }
/* Wide-breakout elements mirrored for right-to-left content. */
[dir="rtl"] .entry-content .kjc-tool, [dir="rtl"] .entry-content .alignwide { margin-left: 0; margin-right: 50%; transform: translateX(50%); }
[dir="rtl"] .kjc-stat b, [dir="rtl"] [data-pct] { direction: ltr; unicode-bidi: isolate; }