:root {
  --bg: #f7f7f8; --panel: #ffffff; --ink: #18181b; --ink2: #52525b; --ink3: #a1a1aa;
  --line: #e4e4e7; --ok: #16a34a; --warn: #d97706; --accent: #4f46e5;
  --r: 10px; --mono: ui-monospace, "SF Mono", Menlo, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  background: var(--bg); color: var(--ink); font-size: 14px;
}
.app { min-height: 100vh; }
.topbar {
  display: flex; align-items: center; gap: 12px; padding: 11px 18px;
  border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0;
}
.logo { display: flex; align-items: center; gap: 9px; font-weight: 700; }
.logo-mark { width: 20px; height: 20px; border-radius: 6px;
  background: conic-gradient(from 220deg, #4f46e5, #06b6d4, #a855f7, #4f46e5); }
.sp { flex: 1; }
.btn {
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  padding: 6px 12px; border-radius: 9px; font-size: 12.5px; font-weight: 550;
  cursor: pointer; font-family: inherit;
}
.btn:hover { border-color: var(--ink3); }
.btn.primary { background: var(--ink); color: var(--panel); border-color: var(--ink); }
.wrap { max-width: 1100px; margin: 0 auto; padding: 26px 30px 80px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r);
  padding: 14px; margin-bottom: 10px; }
.kick { font-size: 10.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink3); margin-bottom: 4px; }
.h1 { font-size: 22px; font-weight: 700; letter-spacing: -.02em; margin-bottom: 8px; }
.lede { color: var(--ink2); line-height: 1.6; margin-bottom: 18px; }
.row { display: flex; align-items: center; gap: 10px; }
input.title, input.text {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r);
  padding: 8px 12px; font-size: 13.5px; color: var(--ink); font-family: inherit; outline: none; flex: 1;
}
input.title:focus, input.text:focus { border-color: var(--ink3); outline: none; }
.speclist { list-style: none; }
.speclist li { display: flex; align-items: center; gap: 10px; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: var(--r); margin-bottom: 8px; background: var(--panel); }
.speclist a { color: var(--ink); text-decoration: none; font-weight: 600; flex: 1; }
.speclist a:hover { text-decoration: underline; }
.meta { font-size: 11.5px; color: var(--ink3); font-variant-numeric: tabular-nums; }
.track { width: 120px; height: 4px; border-radius: 99px; background: var(--line); overflow: hidden; }
.fill { height: 100%; background: var(--ok); }
.chip { font-size: 10.5px; font-weight: 650; letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 99px; border: 1px solid var(--line); color: var(--ink2); }
.chip.ready { border-color: var(--ok); color: var(--ok); }
.editor { display: flex; gap: 0; border: 1px solid var(--line); border-radius: var(--r);
  background: var(--panel); overflow: hidden; min-height: 480px; }
.sidenav { width: 230px; border-right: 1px solid var(--line); padding: 10px 8px; flex-shrink: 0;
  max-height: 640px; overflow-y: auto; }
.secbtn { display: flex; align-items: center; gap: 8px; width: 100%; text-align: left; padding: 7px 10px;
  border: none; background: transparent; border-radius: 8px; font-size: 12.5px; color: var(--ink2);
  cursor: pointer; font-family: inherit; }
.secbtn:hover { background: var(--bg); color: var(--ink); }
.secbtn.on { background: var(--bg); color: var(--ink); font-weight: 600; }
.dot { width: 7px; height: 7px; border-radius: 99px; background: var(--line); flex-shrink: 0; }
.dot.done { background: var(--ok); }
.pane { flex: 1; padding: 20px 22px; min-width: 0; }
.hint { font-size: 12.5px; color: var(--ink2); line-height: 1.6; border-left: 2px solid var(--line);
  padding-left: 12px; margin-bottom: 14px; }
textarea { width: 100%; min-height: 380px; resize: vertical; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--r); padding: 14px; color: var(--ink);
  font-family: var(--mono); font-size: 12.5px; line-height: 1.6; outline: none; }
textarea:focus { border-color: var(--ink3); }
.statusline { display: flex; align-items: center; gap: 10px; margin-top: 8px; font-size: 11.5px; color: var(--ink3); }
.saved { color: var(--ok); }
.authwrap { max-width: 380px; margin: 12vh auto 0; padding: 0 20px; }
.authcard { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
.authcard h2 { font-size: 18px; margin-bottom: 14px; letter-spacing: -.01em; }
.preview { white-space: pre-wrap; font-family: var(--mono); font-size: 12.5px; line-height: 1.6;
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--r); padding: 16px;
  min-height: 380px; }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink);
  color: var(--panel); padding: 9px 16px; border-radius: 99px; font-size: 12.5px; opacity: 0;
  transition: opacity .2s; pointer-events: none; }
.toast.show { opacity: 1; }