/* ============================================================
   Nexus — Nullstack technician portal
   No build step. Plain CSS with custom properties for theming.
   ============================================================ */

:root {
  --bg:            #0d1117;
  --bg-elev:       #161b22;
  --bg-elev-2:     #1c2230;
  --border:        #2a3140;
  --border-strong: #3a4456;
  --text:          #e6edf3;
  --text-dim:      #9aa7b8;
  --text-faint:    #6b7689;
  --accent:        #3b82f6;
  --accent-soft:   rgba(59, 130, 246, 0.14);
  --danger:        #f87171;
  --radius:        10px;
  --topbar-h:      60px;
  --sidebar-w:     240px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
[x-cloak] { display: none !important; }

html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

.icon {
  width: 18px; height: 18px;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
  flex: 0 0 auto;
}
.icon--chev { width: 14px; height: 14px; opacity: .6; }
.icon--ext  { width: 15px; height: 15px; opacity: .5; }

/* ---------- Boot / loading ---------- */
.boot {
  position: fixed; inset: 0;
  display: flex; flex-direction: column; gap: 14px;
  align-items: center; justify-content: center;
  color: var(--text-dim);
}
.boot__spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- App shell (grid) ---------- */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  grid-template-areas:
    "topbar topbar"
    "sidebar content";
  height: 100vh;
}

/* ---------- Top bar ---------- */
.topbar {
  grid-area: topbar;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 18px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand__logo { width: 28px; height: 28px; }
.brand__name { font-weight: 700; font-size: 17px; letter-spacing: .3px; }

.topbar__actions { display: flex; align-items: center; gap: 10px; }

/* Scope */
.scope { position: relative; }
.scope__btn {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-elev-2); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 8px 12px; cursor: pointer; font: inherit;
}
.scope__btn:hover { border-color: var(--border-strong); }
.scope__label { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Search */
.search {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0 12px; color: var(--text-dim);
}
.search input {
  background: transparent; border: 0; outline: none; color: var(--text);
  font: inherit; padding: 9px 0; width: 180px;
}
.search input::placeholder { color: var(--text-faint); }

/* User */
.user { position: relative; }
.user__btn { background: none; border: 0; cursor: pointer; padding: 0; }
.avatar {
  display: grid; place-items: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 13px;
}

/* ---------- Dropdown menus ---------- */
.menu {
  position: absolute; top: calc(100% + 8px); left: 0; z-index: 50;
  min-width: 220px; max-height: 60vh; overflow-y: auto;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(0,0,0,.45);
  padding: 6px;
}
.menu--right { left: auto; right: 0; }
.menu__item {
  display: block; width: 100%; text-align: left;
  background: none; border: 0; color: var(--text);
  padding: 9px 10px; border-radius: 7px; cursor: pointer; font: inherit;
}
.menu__item:hover { background: var(--bg-elev); }
.menu__item.is-active { background: var(--accent-soft); color: #cfe0ff; }
.menu__divider { height: 1px; background: var(--border); margin: 6px 4px; }
.menu__header { padding: 8px 10px; display: flex; flex-direction: column; gap: 3px; }
.menu__header small { color: var(--text-dim); }
.badge {
  align-self: flex-start; margin-top: 4px;
  background: var(--accent-soft); color: #cfe0ff;
  padding: 2px 8px; border-radius: 999px; font-size: 11px; text-transform: capitalize;
}

/* ---------- Sidebar ---------- */
.sidebar {
  grid-area: sidebar;
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  padding: 14px 10px; display: flex; flex-direction: column; gap: 4px;
}
.nav__item {
  display: flex; align-items: center; gap: 11px;
  width: 100%; text-align: left;
  background: none; border: 0; color: var(--text-dim);
  padding: 10px 12px; border-radius: 8px; cursor: pointer; font: inherit; font-weight: 500;
}
.nav__item:hover:not(.is-disabled) { background: var(--bg-elev-2); color: var(--text); }
.nav__item.is-active { background: var(--accent-soft); color: #cfe0ff; }
.nav__item.is-disabled { opacity: .4; cursor: not-allowed; }
.nav__soon-label {
  margin: 16px 12px 4px; font-size: 11px; text-transform: uppercase;
  letter-spacing: .6px; color: var(--text-faint);
}

/* ---------- Content ---------- */
.content { grid-area: content; overflow-y: auto; padding: 26px 30px; }

.page__head { margin-bottom: 22px; }
.page__head h1 { margin: 0 0 6px; font-size: 22px; }
.page__head p { margin: 0; color: var(--text-dim); }

.auth-error {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: rgba(248,113,113,.12); border: 1px solid rgba(248,113,113,.4);
  color: #fecaca; padding: 10px 14px; border-radius: var(--radius); margin-bottom: 18px;
}
.auth-error button { background: none; border: 0; color: inherit; font-size: 20px; cursor: pointer; }

.demo-banner {
  background: var(--accent-soft); border: 1px solid rgba(59,130,246,.4);
  color: #cfe0ff; padding: 10px 14px; border-radius: var(--radius); margin-bottom: 18px;
  font-size: 13px;
}

.empty {
  border: 1px dashed var(--border-strong); border-radius: var(--radius);
  padding: 40px; text-align: center; color: var(--text-dim);
}
.empty small { color: var(--text-faint); }

/* Tool groups */
.tool-group { margin-bottom: 28px; }
.tool-group__title {
  font-size: 13px; text-transform: uppercase; letter-spacing: .7px;
  color: var(--text-faint); margin: 0 0 12px; font-weight: 600;
}
.cards {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.card {
  display: flex; flex-direction: column; gap: 6px; text-align: left;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 15px 16px; cursor: pointer;
  font: inherit; color: var(--text); transition: border-color .12s, transform .12s;
}
.card:hover { border-color: var(--accent); transform: translateY(-1px); }
.card__top { display: flex; align-items: center; justify-content: space-between; }
.card__client { font-weight: 600; font-size: 15px; }
.card__url { color: var(--text-dim); font-size: 12.5px; word-break: break-all; }
.card__label { color: var(--text-faint); font-size: 12px; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; grid-template-areas: "topbar" "content"; }
  .sidebar { display: none; }
  .search input { width: 120px; }
  .scope__label { max-width: 90px; }
}