:root {
  --bg: #0a0b10;
  --panel: #12141d;
  --panel-2: #171a26;
  --border: #262a3b;
  --text: #e8eaf2;
  --muted: #8b91a7;
  --primary: #7c6cff;
  --primary-2: #b18cff;
  --green: #4ade80;
  --red: #f87171;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }

a { color: var(--primary-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 11, 16, .8);
  backdrop-filter: blur(10px);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand svg { color: var(--primary); }
.brand.small { font-size: 16px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { font-size: 14px; }

/* Buttons */
.btn {
  font-family: inherit; font-size: 14px; font-weight: 600;
  border: 1px solid transparent; border-radius: 10px;
  padding: 9px 16px; cursor: pointer; color: #fff;
  transition: transform .05s ease, opacity .15s ease;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.btn-primary:hover { opacity: .92; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--panel-2); }
.btn-lg { padding: 13px 22px; font-size: 16px; border-radius: 12px; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Landing */
.hero { max-width: 820px; margin: 0 auto; padding: 110px 24px 60px; text-align: center; }
.hero h1 { font-size: 52px; font-weight: 800; letter-spacing: -1.5px; line-height: 1.08; }
.grad { background: linear-gradient(135deg, var(--primary), var(--primary-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { max-width: 620px; margin: 22px auto 32px; color: var(--muted); font-size: 18px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; }

.features {
  max-width: 1100px; margin: 0 auto; padding: 40px 24px 60px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px;
}
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.card .icon { font-size: 26px; margin-bottom: 12px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14.5px; }

.getting-started { max-width: 700px; margin: 0 auto; padding: 30px 24px 90px; }
.getting-started h2 { margin-bottom: 16px; }
.getting-started ol { padding-left: 20px; color: var(--muted); }
.getting-started li { margin-bottom: 8px; }

/* Workspace */
.ws-layout { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 57px); }
.sidebar {
  border-right: 1px solid var(--border); background: var(--panel);
  display: flex; flex-direction: column; padding: 20px 14px;
}
.sidenav { margin-top: 26px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.sidenav a {
  color: var(--text); padding: 10px 12px; border-radius: 10px; font-size: 14.5px;
  display: block;
}
.sidenav a:hover { background: var(--panel-2); text-decoration: none; }
.sidenav a.active { background: rgba(124, 108, 255, .15); color: var(--primary-2); font-weight: 600; }
.sidebar-footer { border-top: 1px solid var(--border); padding-top: 14px; }
.api-status { font-size: 13px; margin-bottom: 10px; font-weight: 600; }
.api-status.ok { color: var(--green); }
.api-status.err { color: var(--red); }

.main { padding: 26px 30px; }
.ws-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; gap: 14px; }
.ws-header h2 { font-size: 24px; }
.key-box { display: flex; align-items: center; gap: 8px; }
.key-box span { font-size: 13px; margin-right: 4px; }
.key-box input {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); padding: 7px 10px; width: 220px; font-size: 13px;
}

.panel { max-width: 860px; }
.searchbar {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; display: flex; flex-direction: column; gap: 12px;
}
.searchbar input[type="text"], #addContent {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); padding: 12px 14px; font-size: 15px; width: 100%;
  font-family: inherit;
}
.searchbar-options { display: flex; gap: 18px; align-items: center; font-size: 13px; color: var(--muted); }
.searchbar-options input[type="number"] {
  width: 60px; background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); border-radius: 6px; padding: 4px 6px;
}
.searchbar-options label { display: flex; gap: 6px; align-items: center; cursor: pointer; }
.searchbar .btn { align-self: flex-end; }

.results { margin-top: 18px; display: flex; flex-direction: column; gap: 14px; }
.result-item { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.result-item .score { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.result-item h4 { margin-bottom: 6px; }
.result-item .content { color: var(--muted); font-size: 14px; white-space: pre-wrap; word-break: break-word; }
.result-item .meta { margin-top: 8px; font-size: 12px; color: var(--muted); }
.kicker { font-size: 12px; font-weight: 700; letter-spacing: .4px; text-transform: uppercase; color: var(--primary-2); }

.toolbar { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
#addContent { min-height: 160px; resize: vertical; }
#addStatus { font-size: 13px; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 18px; font-size: 14px; z-index: 100; box-shadow: 0 10px 30px rgba(0,0,0,.4);
}
.toast.ok { border-color: var(--green); }
.toast.err { border-color: var(--red); }

@media (max-width: 720px) {
  .ws-layout { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .key-box input { width: 140px; }
}