:root,[data-theme="light"]{
  --bg:#f4f6fb;--card:#ffffff;--border:#e2e8f0;--text:#1a2333;--muted:#64748b;
  --accent:#2f6df6;--nav-bg:#ffffff;--input-bg:#ffffff;--tag-bg:#eef2f7;
}
[data-theme="dark"]{
  --bg:#0f1420;--card:#182030;--border:#263049;--text:#e8edf5;--muted:#8b96ad;
  --accent:#4f8cff;--nav-bg:#0c111c;--input-bg:#0f1626;--tag-bg:#24304a;
}
*{box-sizing:border-box}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6;margin:0;background:var(--bg);color:var(--text);min-height:100vh}
a{color:var(--accent)}
.wrap{max-width:960px;margin:0 auto;padding:32px 20px}
/* nav */
.nav{display:flex;gap:16px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--border);background:var(--nav-bg)}
.nav .sp{flex:1}
.nav a{text-decoration:none;color:var(--text)}
.nav a:hover{color:var(--accent)}
.nav a.brand{font-weight:700}
.theme-toggle{border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text);padding:5px 10px;cursor:pointer;font-size:15px;line-height:1.4}
.theme-toggle:hover{border-color:var(--accent)}
.lang-switch{border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text);padding:6px 8px;font-size:14px;cursor:pointer}
/* hero */
.hero{padding:64px 20px;text-align:center}
.hero h1{font-size:34px;margin:8px 0;letter-spacing:1px}
.hero .sub{font-size:18px;color:var(--muted);max-width:640px;margin:16px auto}
.badge-free{display:inline-block;padding:6px 16px;border-radius:20px;font-size:14px;margin-bottom:16px;background:#e6f7ec;color:#1a7a3c}
[data-theme="dark"] .badge-free{background:#1d4d33;color:#7ee2a8}
/* buttons */
button,.btn{display:inline-block;background:var(--accent);border:1px solid var(--accent);color:#fff;border-radius:8px;padding:8px 18px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;font-family:inherit;transition:transform .12s ease,box-shadow .12s ease}
button:hover,.btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(47,109,246,.28);color:#fff}
[data-theme="dark"] button:hover,[data-theme="dark"] .btn:hover{background:#6ea3ff;border-color:#6ea3ff;box-shadow:0 4px 12px rgba(110,163,255,.3)}
button.big,.btn.big{font-size:17px;padding:12px 32px}
button.ghost,.btn.ghost{background:transparent;color:var(--accent)}
button.ghost:hover,.btn.ghost:hover{background:rgba(47,109,246,.08);box-shadow:none;transform:none;color:var(--accent)}
[data-theme="dark"] button.ghost:hover,[data-theme="dark"] .btn.ghost:hover{color:#6ea3ff;border-color:#6ea3ff;background:rgba(110,163,255,.08)}
button.danger{background:#c03548;border-color:#c03548}
button.danger:hover{background:#d14456;border-color:#d14456;box-shadow:0 4px 12px rgba(192,53,72,.3)}
button:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
/* card */
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;margin:16px 0}
h1{font-size:28px;margin:8px 0}
h2{font-size:20px;margin:0 0 12px}
h3{font-size:17px;margin:0 0 8px}
.muted{color:var(--muted);font-size:14px}
/* auth */
.auth{max-width:420px;margin:0 auto}
/* inputs */
input,select,textarea{font-family:inherit}
input{width:100%;padding:12px 16px;border-radius:12px;border:1.5px solid var(--border);background:var(--input-bg);color:var(--text);font-size:15px;margin:6px 0}
input:focus{outline:none;border-color:var(--accent)}
input::placeholder{color:var(--muted)}
/* footer */
footer{margin-top:64px;padding:24px 0;font-size:12px;color:var(--muted);text-align:center}
footer a{color:var(--muted);margin:0 8px}
/* misc shared */
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;background:var(--tag-bg);color:var(--text)}
.badge.ready{background:#e6f7ec;color:#1a7a3c}
[data-theme="dark"] .badge.ready{background:#1d4d33;color:#7ee2a8}
.badge.starting,.badge.queued{background:#fdf3e3;color:#9a6b1a}
[data-theme="dark"] .badge.starting,[data-theme="dark"] .badge.queued{background:#4d3f1d;color:#f2d38a}
.badge.failed,.badge.done{background:#fdecec;color:#b33636}
[data-theme="dark"] .badge.failed,[data-theme="dark"] .badge.done{background:#4d2424;color:#f09696}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:10px;border-bottom:1px solid var(--border);text-align:left}
code{background:var(--tag-bg);padding:2px 6px;border-radius:6px;font-size:13px;word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.err{color:#d64545;font-size:14px;min-height:20px}
[data-theme="dark"] .err{color:#ff8a8a}
/* landing extras */
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;text-align:left;margin-top:32px}
.feats p{color:var(--muted);font-size:14px;margin:0;line-height:1.7}
.cta{margin-top:36px}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-top:24px}
.tier{text-align:center}
.tier .p{font-size:32px;font-weight:700;margin:8px 0}
.tier.free{border-color:#2e9e5b}
.case h3{margin-top:0}
.case p,.card p.line18,.card li.line18{line-height:1.8}
.card ul{padding-left:20px}
/* view.html (unchanged page, keep working) */
canvas#screen{width:100%;border-radius:8px;background:#000;cursor:crosshair}
/* responsive */
@media(max-width:768px){
  .nav{gap:10px;padding:10px 12px;font-size:14px;flex-wrap:wrap}
  .hero{padding:40px 16px}
  .hero h1{font-size:28px}
  .hero .sub{font-size:16px}
  .wrap{padding:24px 16px}
  .feats{grid-template-columns:1fr}
  .tiers{grid-template-columns:1fr 1fr}
}

/* myeventwatch-style auth (pill buttons, OAuth-first) */
.auth-mw{max-width:400px;margin:40px auto;padding:0 20px;text-align:center}
.auth-mw h1{font-size:28px;font-weight:600;margin-bottom:32px}
.auth-mw .err{margin-bottom:12px}
.auth-oauth-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:14px 20px;margin-bottom:12px;border:1px solid var(--border);border-radius:999px;background:var(--card);color:var(--text);font-size:16px;cursor:pointer;box-sizing:border-box;transition:background .15s;font-family:inherit}
.auth-oauth-btn:hover{background:var(--tag-bg)}
.auth-oauth-btn:disabled{opacity:.45;cursor:not-allowed}
.auth-oauth-btn svg{flex:none}
.auth-divider{display:flex;align-items:center;margin:24px 0;color:var(--muted);font-size:14px}
.auth-divider::before,.auth-divider::after{content:"";flex:1;border-top:1px solid var(--border)}
.auth-divider span{padding:0 16px}
.auth-input{width:100%;padding:14px 20px;margin-bottom:12px;border:1px solid var(--border);border-radius:999px;font-size:16px;box-sizing:border-box;background:var(--input-bg);color:var(--text);font-family:inherit}
.auth-input:focus{outline:none;border-color:var(--accent)}
.auth-continue-btn{width:100%;padding:14px 20px;margin-top:4px;border:none;border-radius:999px;background:var(--accent);color:#fff;font-size:16px;cursor:pointer;font-family:inherit}
.auth-continue-btn:hover{filter:brightness(1.1)}
.auth-mw .brand-logo{width:52px;height:52px;border-radius:14px;margin-bottom:16px}