/* ========================================================================
   FarmingAI - SaaS-style dashboard. No frameworks, just CSS variables.
   ======================================================================== */
:root {
  --bg: #0e1117;
  --surface: #161b22;
  --surface-2: #1c2230;
  --border: #232a36;
  --text: #e6edf3;
  --text-dim: #8b97a8;
  --accent: #22c55e;
  --accent-soft: rgba(34, 197, 94, .14);
  --danger: #ef4444;
  --warn: #f59e0b;
  --info: #3b82f6;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.18);
  --sidebar-w: 230px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --surface: #ffffff;
    --surface-2: #f0f3f7;
    --border: #e5e9f0;
    --text: #0f172a;
    --text-dim: #5b6677;
    --accent-soft: rgba(34, 197, 94, .12);
  }
}

* { box-sizing: border-box; }

html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  line-height: 1.5;
}

/* ---------------- Sidebar ---------------- */
.sidebar {
  position: fixed; inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  padding: 20px 14px;
  z-index: 50;
}

/* Brand block - high specificity + !important so default link styles never win */
.sidebar a.brand,
.sidebar a.brand:link,
.sidebar a.brand:visited,
.sidebar a.brand:hover,
.sidebar a.brand:active {
  display: flex !important;
  align-items: center !important;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  margin: 4px 8px 22px;
  padding: 0;
  color: var(--text) !important;
  text-decoration: none !important;
  background: transparent !important;
  border-radius: 0;
  transition: opacity .15s;
}
.sidebar a.brand:hover { opacity: 0.85; }

.sidebar a.brand img.logo,
.sidebar a.brand .logo {
  width: 28px !important;
  height: 28px !important;
  max-width: 28px !important;
  max-height: 28px !important;
  flex-shrink: 0;
  object-fit: contain;
  display: block;
  border-radius: 4px;
}

.sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar nav a {
  display: block; padding: 9px 12px;
  color: var(--text-dim); text-decoration: none;
  border-radius: 8px; font-weight: 500;
  transition: background .15s, color .15s;
}
.sidebar nav a:hover { background: var(--surface-2); color: var(--text); }
.sidebar nav a.active {
  background: var(--accent-soft); color: var(--accent);
}
.sidebar-foot {
  margin-top: auto; padding: 12px 8px;
  font-size: 12px; color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ---------------- Main content ---------------- */
.content {
  margin-left: var(--sidebar-w);
  padding: 28px 32px 60px;
  min-height: 100vh;
}
.page-head { margin-bottom: 24px; }
.page-head h1 { margin: 0 0 4px; font-size: 22px; font-weight: 700; }
.page-sub { color: var(--text-dim); font-size: 13px; }

/* ---------------- Cards ---------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 12px; font-size: 14px; font-weight: 600; color: var(--text-dim); text-transform: uppercase; letter-spacing: .04em; }
.card h3 { margin: 0 0 10px; font-size: 14px; font-weight: 600; }

/* ---------------- Grid layouts ---------------- */
.grid { display: grid; gap: 18px; }
.grid.kpi { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.grid.charts { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); margin-top: 18px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* ---------------- KPI ---------------- */
.kpi .card { padding: 16px 18px; }
.kpi .label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.kpi .value { font-size: 26px; font-weight: 700; margin-top: 4px; }
.kpi .meta { color: var(--text-dim); font-size: 12px; margin-top: 2px; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.dot.on  { background: var(--accent); box-shadow: 0 0 0 3px rgba(34,197,94,.18); }
.dot.off { background: var(--text-dim); }

/* ---------------- Charts ---------------- */
.chart-wrap { position: relative; height: 240px; }

/* ---------------- Tables ---------------- */
table {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
th { color: var(--text-dim); font-weight: 600; text-transform: uppercase; font-size: 11px; letter-spacing: .04em; }
tr:last-child td { border-bottom: none; }
.table-card { padding: 8px; }
.table-card table { font-size: 13px; }

/* ---------------- Forms / buttons ---------------- */
input, select, textarea {
  width: 100%;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
label { display: block; font-size: 12px; color: var(--text-dim); margin: 10px 0 4px; }

button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--accent);
  color: white;
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  font: 600 13px/1 'Inter', sans-serif;
  cursor: pointer;
  transition: filter .15s, transform .05s;
}
button:hover, .btn:hover { filter: brightness(1.08); }
button:active { transform: translateY(1px); }
.btn.ghost {
  background: var(--surface-2); color: var(--text); border: 1px solid var(--border);
}
.btn.danger { background: var(--danger); }
.btn.warn   { background: var(--warn); color: #1a1300; }
.btn.sm     { padding: 6px 12px; font-size: 12px; }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin-bottom: 18px; }
.toolbar .field { min-width: 140px; }

/* ---------------- Status pills ---------------- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
}
.pill.on  { background: var(--accent-soft); color: var(--accent); }
.pill.off { background: var(--surface-2); color: var(--text-dim); }
.pill.warn{ background: rgba(245,158,11,.14); color: var(--warn); }

/* ---------------- Mobile ---------------- */
.menu-toggle {
  display: none;
  position: fixed; top: 14px; left: 14px;
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border);
  font-size: 18px;
  z-index: 100;
}
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s; }
  .sidebar.open { transform: translateX(0); }
  .content { margin-left: 0; padding: 70px 16px 40px; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
}

/* ---------------- Auth screen ---------------- */
body.auth {
  display: flex; align-items: center; justify-content: center;
}
.auth-card { width: 320px; }
.auth-card h1 { margin: 0 0 16px; font-size: 20px; }
.auth-card input { margin-bottom: 12px; }
.auth-card button { width: 100%; }

/* ---------------- Chat ---------------- */
.chat-wrap { display: flex; flex-direction: column; height: calc(100vh - 160px); }
.chat-toolbar { display: flex; align-items: center; gap: 8px; padding: 0 12px 8px; border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.chat-msgs { flex: 1; overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 10px; }

.tool-pill {
  align-self: flex-start;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-dim);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-family: ui-monospace, 'SF Mono', monospace;
  max-width: 80%;
}
.tool-pill .tool-name { color: var(--accent); font-weight: 600; }
.tool-pill .tool-summary { flex: 1; min-width: 0; word-break: break-word; }
.tool-pill .tool-expand {
  background: transparent; border: none; color: var(--text-dim);
  cursor: pointer; padding: 0 4px; font-size: 14px; line-height: 1;
}
.tool-pill pre {
  margin: 8px 0 0; padding: 8px; background: var(--bg);
  border-radius: 6px; width: 100%; overflow: auto;
  font-size: 11px; max-height: 240px;
}

.msg {
  max-width: 70%; padding: 10px 14px; border-radius: 14px; line-height: 1.45;
  white-space: pre-wrap; word-wrap: break-word; font-size: 14px;
}
.msg.user { align-self: flex-end; background: var(--accent); color: white; border-bottom-right-radius: 4px; }
.msg.bot  { align-self: flex-start; background: var(--surface-2); color: var(--text); border-bottom-left-radius: 4px; }
.msg.bot.blocked { border: 1px solid var(--warn); background: rgba(245,158,11,.08); }
.msg.tool { align-self: flex-start; background: var(--surface-2); border: 1px dashed var(--border);
            color: var(--text-dim); font-family: ui-monospace, monospace; font-size: 12px; }
.chat-input { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--border); }
.chat-input input { flex: 1; }

.confirm {
  background: rgba(245,158,11,.1);
  border: 1px solid var(--warn);
  border-radius: 10px; padding: 12px; margin: 4px 0;
}
.confirm .row { display: flex; gap: 8px; margin-top: 8px; }

.muted { color: var(--text-dim); }
.row { display: flex; gap: 10px; align-items: center; }
.spacer { flex: 1; }
hr { border: none; border-top: 1px solid var(--border); margin: 18px 0; }