/* Solitaire Pro — main stylesheet. No external fonts or images: fast first paint, no layout shift. */
:root {
  --ink: #16241d; --ink-soft: #46574e; --bg: #f5f8f4; --card: #ffffff; --line: #dbe5dc;
  --brand: #0b5d3e; --brand-d: #07432c; --accent: #e8b931; --link: #0a6a8a; --danger: #b3261e;
  --felt1: #0f7a50; --felt2: #095c3b; --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.65 var(--font); }
img, svg { max-width: 100%; height: auto; }
a { color: var(--link); text-underline-offset: 2px; }
a:hover { color: var(--brand-d); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.screen-reader-text, .skip-link { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link:focus { position: fixed; left: 12px; top: 12px; width: auto; height: auto; clip: auto; background: #fff; padding: 10px 14px; z-index: 99999; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,.3); }
.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* ---------- header ---------- */
.site-header { background: var(--brand-d); color: #fff; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 58px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 800; font-size: 20px; letter-spacing: .2px; }
.brand:hover { color: #fff; }
.brand-mark { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; background: #fff; color: #111; font-size: 20px; line-height: 1; }
.nav-toggle { display: none; background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.4); border-radius: 8px; padding: 6px 12px; font: inherit; font-size: 15px; cursor: pointer; }
.primary-nav ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; flex-wrap: wrap; }
.primary-nav a { display: block; padding: 8px 12px; border-radius: 8px; color: #e6f2ea; text-decoration: none; font-size: 15.5px; font-weight: 600; }
.primary-nav a:hover, .primary-nav .current-menu-item > a, .primary-nav a[aria-current="page"] { background: rgba(255,255,255,.14); color: #fff; }
@media (max-width: 760px) {
  .nav-toggle { display: inline-block; }
  .primary-nav { display: none; position: absolute; left: 0; right: 0; top: 58px; background: var(--brand-d); z-index: 50; padding: 8px 16px 14px; box-shadow: 0 10px 20px rgba(0,0,0,.25); }
  .primary-nav.open { display: block; }
  .primary-nav ul { flex-direction: column; }
  .site-header { position: relative; }
}

/* ---------- headings & breadcrumbs ---------- */
.crumbs { font-size: 14px; color: var(--ink-soft); margin: 14px 0 0; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 8px; padding: 0; margin: 0; }
.crumbs li + li::before { content: "›"; margin-right: 8px; color: #8aa093; }
.crumbs a { color: var(--ink-soft); }
.page-head { padding: 14px 0 6px; }
h1 { font-size: clamp(1.7rem, 4.2vw, 2.4rem); line-height: 1.2; margin: 10px 0 6px; letter-spacing: -.2px; }
.lede { font-size: 1.08rem; color: var(--ink-soft); margin: 0 0 6px; max-width: 760px; }

/* ---------- game shell ---------- */
.sol { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; margin: 12px 0 8px; box-shadow: 0 2px 10px rgba(11,93,62,.06); }
.sol-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 12px; margin-bottom: 10px; }
.sol-modes, .sol-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.sol button, .sol select { font: 600 14.5px/1 var(--font); }
.sol-btn, .sol-modes button { appearance: none; border: 1px solid var(--line); background: #f1f6f2; color: var(--ink); border-radius: 10px; padding: 11px 14px; min-height: 42px; cursor: pointer; transition: background .15s, border-color .15s; }
.sol-btn:hover, .sol-modes button:hover { background: #e4efe7; border-color: #b9ccbd; }
.sol-btn:disabled { opacity: .45; cursor: default; }
.sol-btn.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
.sol-btn.primary:hover { background: var(--brand-d); }
.sol-modes button.on { background: var(--brand); color: #fff; border-color: var(--brand); }
.sol-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; font-size: 14.5px; color: var(--ink-soft); margin-bottom: 8px; }
.sol-meta b { color: var(--ink); font-variant-numeric: tabular-nums; }
.sol-badge { margin-left: auto; font-weight: 700; font-size: 13.5px; padding: 4px 10px; border-radius: 99px; }
.sol-badge.ok { background: #dff3e6; color: #0b5d3e; }
.sol-badge.rand { background: #fbeed0; color: #7a5600; }
.sol-felt { position: relative; border-radius: 12px; padding: 10px; background: radial-gradient(ellipse at 50% 30%, var(--felt1), var(--felt2)); }
.sol[data-felt="blue"] .sol-felt { --felt1: #2a5fa8; --felt2: #153a6e; }
.sol[data-felt="dark"] .sol-felt { --felt1: #3a3f45; --felt2: #1d2024; }
.sol[data-felt="red"] .sol-felt { --felt1: #9b2f3a; --felt2: #66181f; }
.sol-board { position: relative; width: 100%; min-height: 320px; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; }
.sol-status { min-height: 1.5em; margin: 8px 2px 0; font-size: 14.5px; color: var(--ink-soft); }
.sol-stats { font-size: 13.5px; color: var(--ink-soft); margin: 2px 2px 0; }
.sol-settings { margin-top: 8px; font-size: 14.5px; }
.sol-settings summary { cursor: pointer; color: var(--ink-soft); font-weight: 600; padding: 4px 0; }
.sol-settings .row { display: flex; flex-wrap: wrap; gap: 8px 22px; padding: 8px 0 2px; }
.sol-settings label { display: inline-flex; gap: 8px; align-items: center; }
.sol-settings select { padding: 6px 8px; border-radius: 8px; border: 1px solid var(--line); background: #fff; }
.sol-noscript { padding: 18px; background: #fff7e0; border-radius: 10px; }

/* cards */
.slot { position: absolute; left: 0; top: 0; width: var(--cw); height: var(--ch); border-radius: calc(var(--cw) * .1); border: 2px dashed rgba(255,255,255,.26); color: rgba(255,255,255,.4); display: grid; place-items: center; font-size: calc(var(--cw) * .5); font-weight: 700; }
.slot.s1, .slot.s2 { color: rgba(255,170,170,.55); }
.slot-tab { font-size: calc(var(--cw) * .4); }
.slot-stock { cursor: pointer; }
.slot-stock.can-recycle { border-color: rgba(255,255,255,.7); color: #fff; }
.card { position: absolute; left: 0; top: 0; width: var(--cw); height: var(--ch); border-radius: calc(var(--cw) * .1); background: #fff; color: #17191c;
  box-shadow: 0 1px 2px rgba(0,0,0,.45); transition: transform .24s cubic-bezier(.2,.7,.2,1); will-change: transform; touch-action: none; cursor: pointer; overflow: hidden; font-family: var(--font); }
.card:not(.up) { background: repeating-linear-gradient(45deg, #1f5aa6 0 6px, #2a6bbd 6px 12px); border: 2px solid #fff; cursor: default; }
.card:not(.up) .cf, .card:not(.up) .cm { display: none; }
.card.red { color: #c6141b; }
.sol.fourcolor .card.s2 { color: #1f5fbf; }
.sol.fourcolor .card.s3 { color: #17803a; }
.card .cf { position: absolute; left: 7%; top: 2%; display: flex; flex-direction: row; align-items: baseline; gap: 2px; line-height: 1; font-weight: 700; white-space: nowrap; }
.card .cn { font-size: calc(var(--cw) * .32); letter-spacing: -.5px; }
.card .cs { font-size: calc(var(--cw) * .27); }
.card .cf2 { left: auto; top: auto; right: 7%; bottom: 2%; transform: rotate(180deg); }
.card .cm { position: absolute; left: 0; right: 0; top: 50%; transform: translateY(-38%); text-align: center; font-size: calc(var(--cw) * .62); line-height: 1; opacity: .92; }
.card.sel { box-shadow: 0 0 0 3px var(--accent), 0 4px 10px rgba(0,0,0,.45); }
.card.hint, .slot.hint { animation: solpulse .8s ease-in-out 2; box-shadow: 0 0 0 3px #fff6a8, 0 0 14px 4px #ffd84a; }
.slot.hint { border-color: #ffd84a; }
.card.drag { transition: none; box-shadow: 0 10px 22px rgba(0,0,0,.5); cursor: grabbing; }
.no-anim .card { transition: none !important; }
@keyframes solpulse { 50% { filter: brightness(1.18); } }

/* win panel */
.sol-win { position: absolute; inset: 0; z-index: 9000; display: grid; place-items: center; background: rgba(5,30,19,.78); border-radius: 12px; padding: 16px; }
.sol-win[hidden] { display: none; }
.sol-win .box { background: #fff; border-radius: 16px; padding: 24px 26px; text-align: center; max-width: 360px; box-shadow: 0 20px 50px rgba(0,0,0,.4); }
.sol-win .win-title { margin: 0 0 6px; font-size: 1.7rem; font-weight: 800; color: var(--ink); }
.sol-win p { margin: 0 0 14px; color: var(--ink-soft); }
.sol-win .btns { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.sol-win a.sol-btn { text-decoration: none; display: inline-flex; align-items: center; }

/* ---------- content ---------- */
.content { max-width: 800px; margin: 8px auto 0; }
.content h2 { font-size: 1.55rem; line-height: 1.25; margin: 2.1rem 0 .6rem; letter-spacing: -.2px; }
.content h3 { font-size: 1.2rem; margin: 1.6rem 0 .4rem; }
.content p, .content li { max-width: 72ch; }
.content ul, .content ol { padding-left: 1.3rem; }
.content li { margin: .25rem 0; }
.content table { border-collapse: collapse; width: 100%; font-size: 15.5px; margin: 1rem 0; background: #fff; border-radius: 8px; overflow: hidden; }
.content th, .content td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.content th { background: #edf4ee; }
.table-scroll { overflow-x: auto; }
.callout { background: #eaf5ee; border-left: 5px solid var(--brand); padding: 14px 18px; border-radius: 8px; margin: 1.2rem 0; }
.callout p { margin: .2rem 0; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 0 16px; margin: 8px 0; }
.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style-position: outside; }
.faq details[open] summary { border-bottom: 1px solid var(--line); margin-bottom: 10px; }
.faq details p { margin: 0 0 14px; }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin: 14px 0; }
.mini { display: block; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; text-decoration: none; color: var(--ink); transition: transform .15s, box-shadow .15s; }
.mini:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(11,93,62,.12); color: var(--ink); }
.mini strong { display: block; color: var(--brand-d); font-size: 1.05rem; }
.mini span { font-size: 14.5px; color: var(--ink-soft); line-height: 1.45; display: block; margin-top: 4px; }
.byline { font-size: 14px; color: var(--ink-soft); margin: 12px 0; }

/* posts & pages */
.entry { max-width: 780px; margin: 20px auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px clamp(16px, 4vw, 34px); }
.entry-title { margin-top: 0; }
.post-list article { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 12px 0; }
.post-list h2 { margin: 0 0 4px; font-size: 1.25rem; }
.pagination { display: flex; gap: 8px; justify-content: center; margin: 20px 0; }
.pagination a, .pagination span { padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; text-decoration: none; }
.pagination .current { background: var(--brand); color: #fff; border-color: var(--brand); }
.search-form { display: flex; gap: 8px; }
.search-form input[type=search] { flex: 1; padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line); font: inherit; }

/* ads (reserve space so nothing jumps; clearly labelled; never inside the game) */
.ad-slot { margin: 30px auto; text-align: center; min-height: 280px; max-width: 970px; clear: both; }
.ad-slot .ad-label { display: block; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: #7a8a80; margin-bottom: 6px; }
.ad-slot ins { display: block; }

/* footer */
.site-footer { margin-top: 48px; background: var(--brand-d); color: #cfe3d6; padding: 28px 0 36px; font-size: 15px; }
.site-footer a { color: #fff; }
.footer-grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.footer-grid h2 { color: #fff; font-size: 1rem; margin: 0 0 8px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin: 5px 0; }
.copy { margin-top: 22px; border-top: 1px solid rgba(255,255,255,.18); padding-top: 14px; font-size: 13.5px; }

@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .sol { padding: 8px; margin-left: -8px; margin-right: -8px; border-radius: 12px; }
  .sol-felt { padding: 6px; }
  .sol-btn, .sol-modes button { padding: 10px 11px; font-size: 14px; }
  .sol-badge { margin-left: 0; }
  .entry { margin: 12px -8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card { transition: none; }
  .card.hint, .slot.hint { animation: none; }
}