/* Sign-in / paywall / loading screens for the Chess Cheat Sheets web app.
   High contrast on purpose (a good share of customers are older players). */
:root {
  --g-bg: #fcf9f5; --g-fg: #191814; --g-card: #ffffff; --g-border: #cfd3da;
  --g-primary: #141d31; --g-primary-fg: #ffffff; --g-accent: #a45200; --g-error: #a4161a; --g-ok: #126635;
}
@media (prefers-color-scheme: dark) {
  :root { --g-bg: #0e131d; --g-fg: #f5f3ef; --g-card: #181e2b; --g-border: #3a4357; --g-primary: #df8f48; --g-primary-fg: #0e131d; --g-accent: #e89a50; --g-error: #ff8a8d; --g-ok: #4fb772; }
}
#ccs-gate {
  position: fixed; inset: 0; z-index: 2147483000; overflow: auto;
  background: var(--g-bg); color: var(--g-fg);
  font: 17px/1.5 Montserrat, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  display: flex; align-items: flex-start; justify-content: center; padding: 24px 16px;
}
#ccs-gate * { box-sizing: border-box; }
.g-card { width: 100%; max-width: 460px; margin: 6vh auto 0; background: var(--g-card); border: 1px solid var(--g-border); border-radius: 14px; padding: 28px 24px; }
.g-logo { display: block; height: 44px; width: auto; margin: 0 auto 18px; }
.g-card h1 { font-size: 24px; line-height: 1.25; margin: 0 0 8px; text-align: center; }
.g-card p { margin: 10px 0; }
.g-sub { text-align: center; }
.g-banner { background: color-mix(in srgb, var(--g-ok) 14%, transparent); border: 1px solid var(--g-ok); border-radius: 10px; padding: 10px 12px; margin: 12px 0; }
.g-error { color: var(--g-error); font-weight: 600; margin-top: 10px; }
.g-card label { display: block; font-weight: 600; margin: 16px 0 6px; }
.g-card input { width: 100%; font: inherit; padding: 12px 14px; border: 2px solid var(--g-border); border-radius: 10px; background: var(--g-bg); color: var(--g-fg); }
.g-card input:focus { outline: 3px solid var(--g-accent); outline-offset: 1px; border-color: var(--g-accent); }
.g-code { text-align: center; letter-spacing: 0.4em; font-size: 26px; font-weight: 700; }
.g-btn { display: block; width: 100%; font: inherit; font-weight: 700; text-align: center; text-decoration: none; cursor: pointer; margin-top: 14px; padding: 13px 16px; border-radius: 10px; border: 2px solid var(--g-primary); background: var(--g-primary); color: var(--g-primary-fg); }
.g-btn:hover { filter: brightness(1.1); }
.g-btn[disabled] { opacity: .6; cursor: wait; }
.g-btn.g-alt { background: transparent; color: var(--g-fg); border-color: var(--g-border); font-weight: 600; }
.g-link { background: none; border: 0; padding: 6px 0; margin-top: 10px; color: var(--g-fg); text-decoration: underline; cursor: pointer; font: inherit; display: block; width: 100%; text-align: center; }
.g-small { font-size: 15px; }
.g-apps { display: grid; gap: 12px; margin-top: 16px; }
.g-app { display: block; text-decoration: none; color: inherit; border: 2px solid var(--g-border); border-radius: 12px; padding: 14px 16px; }
.g-app:hover { border-color: var(--g-accent); }
.g-app strong { display: block; font-size: 18px; }
.g-spin { width: 34px; height: 34px; margin: 18px auto; border: 4px solid var(--g-border); border-top-color: var(--g-accent); border-radius: 50%; animation: gspin 0.9s linear infinite; }
@keyframes gspin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .g-spin { animation: none; } }

.g-rule { border: 0; border-top: 1px solid var(--g-border); margin: 26px 0 18px; }
#ccs-gate h2 { font-size: 1.25rem; margin: 0 0 6px; text-align: center; }
.g-card p.g-brand { margin: 8px 0 18px; text-align: center; font-size: 1.05rem; font-weight: 700; letter-spacing: .02em; color: var(--g-fg); opacity: 1; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .g-card p.g-brand { color: #fff; } }
#ccs-demo-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; display: flex; gap: 12px; align-items: center; justify-content: center; padding: 8px 12px; background: var(--g-primary, #f5c518); color: var(--g-primary-fg, #191814); font: 600 15px/1.3 system-ui, sans-serif; box-shadow: 0 -2px 10px rgba(0,0,0,.18); }
#ccs-demo-bar .g-demo-btn { font: inherit; font-weight: 700; padding: 7px 14px; border-radius: 8px; border: 2px solid currentColor; background: transparent; color: inherit; cursor: pointer; }
/* the walkthrough box sits above the demo bar, not under it */
body:has(#ccs-demo-bar) .ccs-overlay-stack { bottom: 4.5rem; }
body:has(#ccs-demo-bar) { padding-bottom: 56px; }