:root {
  --brand: #5a2d0c;        /* madera oscura */
  --brand-2: #8a4b1f;
  --accent: #E0A800;       /* ámbar */
  --bg: #f4f1ec;
  --surface: #ffffff;
  --text: #2b2b2b;
  --muted: #6b6b6b;
  --border: #e2ddd4;
  --danger: #b00020;
  --ok: #1b7f3b;
  --warn: #b8860b;
  --info: #24618f;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(0,0,0,.06);
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px;
}
a { color: var(--brand-2); }
button { font-family: inherit; cursor: pointer; }
.hidden { display: none !important; }

/* ---------- Layout ---------- */
#app { min-height: 100%; }
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; background: var(--brand); color: #fff; flex-shrink: 0;
  display: flex; flex-direction: column; padding: 16px 0;
}
.sidebar .logo { padding: 8px 20px 18px; font-weight: 800; font-size: 18px; line-height: 1.15; }
.sidebar .logo small { display: block; font-weight: 400; font-size: 11px; opacity: .8; }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar nav a {
  color: #fff; text-decoration: none; padding: 12px 20px; display: flex; gap: 10px;
  align-items: center; opacity: .85; font-size: 14px;
}
.sidebar nav a:hover { background: rgba(255,255,255,.08); opacity: 1; }
.sidebar nav a.active { background: rgba(255,255,255,.16); opacity: 1; border-left: 3px solid var(--accent); }
.sidebar .spacer { flex: 1; }
.sidebar .userbox { padding: 12px 20px; font-size: 12px; opacity: .8; border-top: 1px solid rgba(255,255,255,.15); }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 12px 20px; display: flex; align-items: center; gap: 14px; position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: 18px; margin: 0; flex: 1; }
.content { padding: 20px; max-width: 1200px; width: 100%; margin: 0 auto; }

/* bottom nav (mobile) */
.bottomnav { display: none; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 12px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow); cursor: pointer; transition: transform .08s;
}
.card:hover { transform: translateY(-2px); }
.card .num { font-size: 30px; font-weight: 800; color: var(--brand); }
.card .lbl { font-size: 13px; color: var(--muted); margin-top: 4px; }
.card.alert .num { color: var(--danger); }

/* ---------- Panels ---------- */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; margin-bottom: 18px; }
.panel h2 { margin: 0 0 12px; font-size: 16px; }
.panel h3 { font-size: 14px; margin: 16px 0 8px; color: var(--brand-2); }
.section-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.section-title h1 { font-size: 22px; margin: 0; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tbody tr:hover { background: #faf8f4; }
.clickable { cursor: pointer; }

/* ---------- Badges / states ---------- */
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.b-gray { background: #eee; color: #555; }
.b-blue { background: #e3f0fb; color: var(--info); }
.b-green { background: #e2f5e9; color: var(--ok); }
.b-amber { background: #fdf1d6; color: var(--warn); }
.b-red { background: #fde8ec; color: var(--danger); }
.b-purple { background: #efe6fb; color: #6b31c9; }
.prio-urgente { background: var(--danger); color:#fff; }
.prio-alta { background: #fdf1d6; color: var(--warn); }

/* ---------- Forms ---------- */
.field { margin-bottom: 12px; }
label.lab { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; font-weight: 600; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 15px; background: #fff; color: var(--text);
}
textarea { min-height: 70px; resize: vertical; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.btn {
  background: var(--brand); color: #fff; border: none; padding: 11px 18px; border-radius: 8px;
  font-size: 15px; font-weight: 600; display: inline-flex; align-items: center; gap: 8px;
}
.btn:hover { background: var(--brand-2); }
.btn.secondary { background: #fff; color: var(--brand); border: 1px solid var(--brand); }
.btn.ok { background: var(--ok); } .btn.danger { background: var(--danger); }
.btn.ghost { background: transparent; color: var(--brand); border: 1px solid var(--border); }
.btn.small { padding: 7px 12px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btnrow { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Highlight boxes (patas/adicionales/observaciones) ---------- */
.highlight { border-radius: 10px; padding: 10px 12px; margin: 8px 0; }
.hl-legs { background: #fff6e0; border: 1px solid var(--accent); }
.hl-extras { background: #fdecea; border: 1px solid #f0a; border-color: #e88; }
.hl-notes { background: #fff3cd; border: 1px solid #e0a800; }
.highlight .hl-title { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--brand-2); }
.highlight .hl-val { font-size: 15px; font-weight: 700; }

/* product spec grid */
.specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); gap: 8px 16px; margin: 10px 0; }
.specs .spec { font-size: 13px; }
.specs .spec b { display: block; color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; }

/* filters */
.filters { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 10px; margin-bottom: 14px; }

/* login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2)); }
.login-card { background: #fff; border-radius: 16px; padding: 32px; width: 100%; max-width: 380px; box-shadow: 0 10px 40px rgba(0,0,0,.25); }
.login-card h1 { font-size: 22px; margin: 0 0 4px; color: var(--brand); }
.login-card p.sub { margin: 0 0 20px; color: var(--muted); font-size: 14px; }

/* misc */
.chatbox { max-height: 320px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.msg { padding: 8px 12px; border-radius: 10px; max-width: 80%; }
.msg.mine { align-self: flex-end; background: #e3f0fb; }
.msg.theirs { align-self: flex-start; background: #f0ece5; }
.msg.internal { background: #fff3cd; border: 1px dashed #e0a800; }
.msg .meta { font-size: 11px; color: var(--muted); margin-bottom: 2px; }
.toast { position: fixed; bottom: 20px; right: 20px; background: #222; color: #fff; padding: 12px 18px;
  border-radius: 8px; z-index: 1000; box-shadow: var(--shadow); max-width: 320px; }
.toast.err { background: var(--danger); } .toast.ok { background: var(--ok); }
.notif-badge { background: var(--danger); color: #fff; border-radius: 20px; padding: 1px 7px; font-size: 11px; }
.pill-row { display: flex; gap: 6px; flex-wrap: wrap; }
.muted { color: var(--muted); }
.right { text-align: right; }
.mono { font-family: ui-monospace, monospace; }
.alertbox { padding: 10px 12px; border-radius: 8px; margin: 6px 0; font-size: 14px; }
.alertbox.danger { background: #fde8ec; color: var(--danger); }
.alertbox.warn { background: #fdf1d6; color: var(--warn); }
progress { width: 100%; height: 10px; }

/* modal */
.modal-back { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex; align-items: center;
  justify-content: center; z-index: 500; padding: 16px; }
.modal { background: #fff; border-radius: 14px; padding: 22px; max-width: 520px; width: 100%; max-height: 90vh; overflow-y: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .sidebar { display: none; }
  .bottomnav {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; background: var(--brand);
    z-index: 50; justify-content: space-around; padding: 6px 0; box-shadow: 0 -2px 8px rgba(0,0,0,.2);
  }
  .bottomnav a { color: #fff; text-decoration: none; font-size: 11px; text-align: center; opacity: .8;
    display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 4px 8px; }
  .bottomnav a.active { opacity: 1; color: var(--accent); }
  .bottomnav a .ic { font-size: 18px; }
  .content { padding: 14px 14px 80px; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .topbar h1 { font-size: 16px; }
}