/* Palette matched to kershlinkrishna.com */
:root {
  --bg-primary:#ffffff; --bg-secondary:#f8f9fa; --bg-card:#ffffff;
  --text-dark:#1a1a2e; --text-body:#4a4a5a; --text-muted:#6b7280; --text-subtle:#9ca3af;
  --accent:#2563eb; --accent-hover:#1d4ed8; --accent-light:#dbeafe;
  --border:#e5e7eb; --border-light:#f3f4f6;
  --shadow-sm:0 1px 2px rgba(0,0,0,0.05); --shadow:0 4px 20px rgba(0,0,0,0.08);
  --danger:#dc2626; --ok:#16a34a;
}
* { box-sizing:border-box; }
body { margin:0; font-family:'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
       background:var(--bg-secondary); color:var(--text-body); -webkit-font-smoothing:antialiased; }

.topbar { display:flex; justify-content:space-between; align-items:center; padding:16px 28px;
          background:rgba(255,255,255,0.9); backdrop-filter:blur(8px);
          border-bottom:1px solid var(--border); box-shadow:var(--shadow-sm); position:sticky; top:0; z-index:10; }
.brand { font-weight:700; color:var(--text-dark); letter-spacing:-0.01em; }
nav a, .linkbtn { color:var(--text-muted); text-decoration:none; margin-left:18px; font-size:14px;
                  font-weight:500; background:none; border:none; cursor:pointer; transition:color .2s; }
nav a:hover, .linkbtn:hover { color:var(--accent); }

.wrap { max-width:880px; margin:0 auto; padding:24px 16px; }

.card { background:var(--bg-card); border:1px solid var(--border); border-radius:16px;
        padding:36px; max-width:420px; margin:7vh auto; box-shadow:var(--shadow); }
.card.wide { max-width:760px; }
h1 { margin-top:0; font-size:24px; font-weight:700; color:var(--text-dark); letter-spacing:-0.02em; }

label { display:block; margin:16px 0 6px; font-size:14px; font-weight:500; color:var(--text-dark); }
input, textarea { width:100%; padding:12px 14px; border-radius:10px; border:1px solid var(--border);
                  background:var(--bg-primary); color:var(--text-dark); font-size:15px;
                  font-family:inherit; transition:border-color .2s, box-shadow .2s; }
input:focus, textarea:focus { outline:none; border-color:var(--accent);
                  box-shadow:0 0 0 3px var(--accent-light); }
button { margin-top:18px; background:var(--accent); color:#fff; border:none; border-radius:10px;
         padding:12px 24px; font-size:15px; font-weight:600; font-family:inherit; cursor:pointer;
         transition:background .2s; }
button:hover { background:var(--accent-hover); }
button.danger { background:var(--danger); } button.ok { background:var(--ok); }
button:disabled { opacity:.5; cursor:default; }
.muted { color:var(--text-muted); font-size:14px; } .error { color:var(--danger); font-size:14px; }
.pending-note { background:var(--accent-light); color:#1e3a8a; padding:10px 14px; border-radius:10px; font-size:14px; }
/* activity log */
.activity { border:1px solid var(--border); border-radius:10px; margin:8px 0; padding:0; background:var(--bg-card); }
.activity summary { display:flex; gap:12px; align-items:baseline; padding:10px 14px; cursor:pointer; list-style:none; }
.activity summary::-webkit-details-marker { display:none; }
.activity .who { font-weight:600; color:var(--accent); font-size:13px; white-space:nowrap; }
.activity .q { flex:1; color:var(--text-dark); font-size:14px; overflow:hidden; text-overflow:ellipsis; }
.activity .when { color:var(--text-subtle); font-size:12px; white-space:nowrap; }
.activity[open] summary { border-bottom:1px solid var(--border-light); }
.activity .answer { padding:14px; white-space:pre-wrap; font-size:14px; color:var(--text-body); line-height:1.6; }
a { color:var(--accent); text-decoration:none; } a:hover { text-decoration:underline; }

table { width:100%; border-collapse:collapse; margin-top:14px; }
th, td { text-align:left; padding:10px 12px; border-bottom:1px solid var(--border-light); font-size:14px; }
th { color:var(--text-muted); font-weight:600; }
.badge { padding:3px 10px; border-radius:12px; font-size:12px; font-weight:600; }
.badge.approved { background:#dcfce7; color:#166534; }
.badge.pending { background:#fef3c7; color:#92400e; }
.badge.revoked { background:#fee2e2; color:#991b1b; }
form.inline { display:flex; gap:6px; margin:0; } form.inline button { margin:0; padding:6px 12px; font-size:13px; }

/* chat */
.chat { display:flex; flex-direction:column; height:calc(100vh - 130px); }
.messages { flex:1; overflow-y:auto; padding:12px 4px; display:flex; flex-direction:column; gap:14px; }
.msg { max-width:78%; padding:14px 18px; border-radius:16px; line-height:1.6; font-size:15px; box-shadow:var(--shadow-sm); }
.msg.user { align-self:flex-end; background:var(--accent); color:#fff; border-bottom-right-radius:4px; white-space:pre-wrap; }
.msg.bot { align-self:flex-start; max-width:88%; background:var(--bg-card); border:1px solid var(--border);
           color:var(--text-dark); border-bottom-left-radius:4px; }
.msg.bot.thinking { color:var(--text-muted); font-style:italic; }

/* markdown formatting inside assistant messages */
.msg.bot > :first-child { margin-top:0; } .msg.bot > :last-child { margin-bottom:0; }
.msg.bot p { margin:.5em 0; }
.msg.bot h1, .msg.bot h2, .msg.bot h3 { margin:.7em 0 .35em; color:var(--text-dark); font-weight:700; line-height:1.3; letter-spacing:-0.01em; }
.msg.bot h1 { font-size:1.15rem; } .msg.bot h2 { font-size:1.05rem; } .msg.bot h3 { font-size:.98rem; }
.msg.bot ul, .msg.bot ol { margin:.4em 0; padding-left:1.35em; }
.msg.bot li { margin:.22em 0; }
.msg.bot strong { font-weight:700; color:var(--text-dark); }
.msg.bot a { color:var(--accent); }
.msg.bot code { background:var(--bg-secondary); padding:1px 6px; border-radius:5px; font-size:.9em;
                font-family:ui-monospace, SFMono-Regular, Menlo, monospace; }
.msg.bot pre { background:var(--bg-secondary); padding:10px 12px; border-radius:8px; overflow-x:auto; margin:.5em 0; }
.msg.bot pre code { background:none; padding:0; }
.msg.bot blockquote { margin:.5em 0; padding:.2em 0 .2em .9em; border-left:3px solid var(--border);
                      color:var(--text-muted); }
.msg.bot table { border-collapse:collapse; margin:.6em 0; font-size:.92em; display:block; overflow-x:auto; }
.msg.bot th, .msg.bot td { border:1px solid var(--border); padding:6px 10px; text-align:left; }
.msg.bot th { background:var(--bg-secondary); font-weight:600; color:var(--text-dark); }
.msg.bot hr { border:none; border-top:1px solid var(--border); margin:.8em 0; }
.composer { display:flex; gap:10px; padding:14px 4px 4px; border-top:1px solid var(--border); }
.composer textarea { resize:none; } .composer button { margin:0; }