/* ============================================================
   Abendly site chrome: one system on every page.
   Tokens, the nav, the two buttons, the card, scroll-in motion
   and the chat launcher (off). Behaviour lives in /js/site.js.
   On styles.css pages, link this BEFORE styles.css so the app's
   .btn sizes (.btn-sm and friends) keep precedence.
   ============================================================ */

:root{
  --ab-bg:#0a0e14;--ab-panel:#0f141c;--ab-panel-2:#131a24;--ab-line:#1e2733;--ab-line-bright:#2a3644;
  --ab-ink:#e6edf3;--ab-ink-dim:#8b98a8;--ab-ink-faint:#5a6675;
  --ab-accent:#38d39f;--ab-accent-hover:#46e3ad;--ab-on-accent:#04110c;
  --ab-sans:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,sans-serif;
  --ab-mono:"SF Mono",ui-monospace,"JetBrains Mono","Cascadia Code",Menlo,Consolas,monospace;
  --ab-max:1200px;--ab-gutter:24px;--ab-section:120px;--ab-nav-h:64px;
  --ab-radius-card:16px;--ab-radius-btn:12px;
  --ab-shadow-card:0 1px 2px rgba(0,0,0,.35);
}
@media(max-width:640px){:root{--ab-section:64px;--ab-gutter:16px}}

html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ---- Nav: slim, sticky, logo left; deepens once the page scrolls (site.js adds .sn-solid) ---- */
.sn-mount{position:sticky;top:0;z-index:1000}
.sn{position:sticky;top:0;z-index:1000;height:var(--ab-nav-h);background:rgba(10,14,20,.82);background:color-mix(in srgb,var(--ab-bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;font-family:var(--ab-sans);font-size:16px;line-height:1.5;transition:background-color .2s ease,border-color .2s ease}
.sn.sn-solid,.sn.is-open{background:rgba(10,14,20,.94);background:color-mix(in srgb,var(--ab-bg) 94%,transparent);border-bottom-color:var(--ab-line)}
.sn-in{display:flex;align-items:center;gap:32px;height:100%;max-width:calc(var(--ab-max) + 2 * var(--ab-gutter));margin:0 auto;padding:0 var(--ab-gutter)}
.sn-logo{display:flex;align-items:center;gap:8px;flex:none;font-family:var(--ab-mono);font-weight:600;font-size:17px;letter-spacing:-.01em;color:var(--ab-ink);text-decoration:none}
.sn-logo:hover{color:var(--ab-ink)}
.sn-dot{width:8px;height:8px;border-radius:50%;background:var(--ab-accent);animation:sn-pulse 2.6s ease-out infinite}
@keyframes sn-pulse{0%{box-shadow:0 0 0 0 rgba(56,211,159,.5)}70%{box-shadow:0 0 0 7px rgba(56,211,159,0)}100%{box-shadow:0 0 0 0 rgba(56,211,159,0)}}
@media(prefers-reduced-motion:reduce){.sn-dot{animation:none}}
.sn-links{display:flex;align-items:center;gap:32px;flex:1;min-width:0}
.sn-links a,.sn-menu summary{font-size:14px;font-weight:500;color:var(--ab-ink-dim);text-decoration:none;white-space:nowrap;cursor:pointer;transition:color .15s ease}
.sn-links a:hover,.sn-menu summary:hover,.sn-menu[open] summary,.sn-links a[aria-current="page"]{color:var(--ab-ink)}
.sn-signin,.sn-user{margin-left:auto}
.sn-user{display:flex;align-items:center;gap:16px}
.sn-user .sn-who{font-size:13px;color:var(--ab-ink-dim)}
.sn-user .sn-plan{padding:0 8px;border:1px solid var(--ab-line-bright);border-radius:999px;font-family:var(--ab-mono);font-size:10px;font-weight:600;line-height:1.8;color:var(--ab-ink-dim)}
.sn-user .sn-plan.pro{color:var(--ab-accent);border-color:rgba(56,211,159,.35)}
.sn-menu{position:relative}
.sn-menu summary{list-style:none;display:inline-flex;align-items:center;gap:8px}
.sn-menu summary::-webkit-details-marker{display:none}
.sn-menu summary::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .15s ease}
.sn-menu[open] summary::after{transform:translateY(2px) rotate(-135deg)}
.sn-pop{position:absolute;top:calc(100% + 16px);left:-16px;display:flex;flex-direction:column;min-width:224px;padding:8px;background:var(--ab-panel);border:1px solid var(--ab-line);border-radius:var(--ab-radius-card);box-shadow:var(--ab-shadow-card)}
.sn-links .sn-pop a{padding:8px 16px;border-radius:8px;color:var(--ab-ink)}
.sn-links .sn-pop a:hover{background:var(--ab-panel-2)}
.sn-actions{display:flex;align-items:center;gap:16px;flex:none}
.sn-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;padding:0;background:none;border:1px solid var(--ab-line);border-radius:var(--ab-radius-btn);color:var(--ab-ink);cursor:pointer}
.sn a:focus-visible,.sn summary:focus-visible,.sn button:focus-visible{outline:2px solid var(--ab-accent);outline-offset:4px;border-radius:4px}
@media(max-width:960px){
  .sn-in{gap:16px}
  .sn-links{display:none;position:absolute;top:var(--ab-nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:8px var(--ab-gutter) 16px;background:var(--ab-bg);border-bottom:1px solid var(--ab-line)}
  .sn.is-open .sn-links{display:flex}
  .sn-links > a,.sn-menu summary{display:flex;padding:16px 0;font-size:16px}
  .sn-menu summary{justify-content:space-between}
  .sn-signin,.sn-user{margin-left:0}
  .sn-user{flex-wrap:wrap;padding:16px 0}
  .sn-pop{position:static;min-width:0;padding:0 0 8px 16px;background:none;border:none;box-shadow:none}
  .sn-actions{margin-left:auto}
  .sn-toggle{display:inline-flex}
}
@media(max-width:400px){.sn-in{gap:8px}.sn-actions{gap:8px}}

/* ---- Buttons: one primary, one secondary ---- */
.btn-primary,.btn-secondary,.sn-cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border:1px solid transparent;border-radius:var(--ab-radius-btn);font-family:var(--ab-sans);font-size:16px;font-weight:600;line-height:1.25;letter-spacing:0;text-align:center;text-decoration:none;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,color .15s ease,transform .2s ease,box-shadow .2s ease}
.btn-primary,.sn-cta{background:var(--ab-accent);border-color:var(--ab-accent);color:var(--ab-on-accent)}
.btn-primary:hover,.sn-cta:hover{background:var(--ab-accent-hover);border-color:var(--ab-accent-hover);color:var(--ab-on-accent);transform:translateY(-1px);box-shadow:0 8px 24px -10px rgba(56,211,159,.35)}
@media(prefers-reduced-motion:reduce){.btn-primary:hover,.sn-cta:hover{transform:none}}
.btn-secondary{background:transparent;border-color:var(--ab-line-bright);color:var(--ab-ink)}
.btn-secondary:hover{background:rgba(255,255,255,.03);border-color:var(--ab-ink-dim);color:var(--ab-ink)}
/* The nav's primary button, sized to sit inside a 64px bar */
.sn-cta{padding:8px 16px;font-size:14px;white-space:nowrap}

/* ---- Card: the one card style ---- */
.ab-card{background:var(--ab-panel);border:1px solid var(--ab-line);border-radius:var(--ab-radius-card);box-shadow:var(--ab-shadow-card)}

/* ---- Scroll-in: 700ms, once (site.js adds .ab-motion, so no-JS pages never hide content) ---- */
.ab-motion .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.ab-motion .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.ab-motion .reveal{opacity:1;transform:none;transition:none}}

/* ---- Chat launcher: OFF. Rendered only when CHAT_LAUNCHER_ENABLED is true in /js/site.js ---- */
.ab-chat{position:fixed;right:24px;bottom:24px;z-index:900;font-family:var(--ab-sans)}
.ab-chat-btn{display:flex;align-items:center;justify-content:center;width:56px;height:56px;padding:0;border:0;border-radius:50%;background:var(--ab-accent);color:#fff;box-shadow:0 8px 24px -8px rgba(0,0,0,.6);cursor:pointer;transition:background-color .15s ease}
.ab-chat-btn:hover{background:var(--ab-accent-hover)}
.ab-chat-btn:focus-visible{outline:2px solid var(--ab-ink);outline-offset:4px}
.ab-chat-btn svg{width:24px;height:24px}
.ab-chat-panel{position:absolute;right:0;bottom:72px;display:flex;flex-direction:column;width:380px;max-width:calc(100vw - 32px);height:min(560px,calc(100vh - 120px));background:var(--ab-panel);border:1px solid var(--ab-line);border-radius:var(--ab-radius-card);box-shadow:var(--ab-shadow-card);overflow:hidden}
.ab-chat-panel[hidden]{display:none}
@media(max-width:640px){.ab-chat{right:16px;bottom:16px}}