:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e7ebf2;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --ok: #2ecc71;
  --warn: #f1c40f;
  --err: #ff5d5d;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(0,0,0,.25);
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fa; --panel: #fff; --panel-2: #f0f3f8; --border: #dde3ec;
    --text: #1a2030; --muted: #5b6678; --shadow: 0 2px 10px rgba(20,30,60,.07);
  }
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; }
h1, h2 { margin: 0; }

.topbar { display: flex; justify-content: space-between; align-items: center; padding: 12px 18px; background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; gap: 12px; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 26px; }
.topbar h1 { font-size: 18px; }
.sub { margin: 2px 0 0; color: var(--muted); font-size: 12.5px; }
.conn { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.conn-text { font-size: 13px; color: var(--muted); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.dot-ok { background: var(--ok); } .dot-err { background: var(--err); } .dot-off { background: var(--muted); }
.icon-btn { background: transparent; border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 5px 9px; cursor: pointer; font-size: 15px; }
.icon-btn:hover { background: var(--panel-2); }

.settings { padding: 12px 18px; background: var(--panel-2); border-bottom: 1px solid var(--border); }
.settings-grid { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.check { display: flex; align-items: center; gap: 7px; font-size: 14px; cursor: pointer; }

.layout { display: grid; grid-template-columns: minmax(360px, 1fr) minmax(340px, 1fr); gap: 14px; padding: 14px 18px; align-items: start; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }

.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field label { font-size: 13px; font-weight: 600; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
input, select, textarea { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 9px; padding: 10px 11px; font-size: 15px; font-family: inherit; width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
input:disabled, select:disabled, textarea:disabled { opacity: .5; }
textarea { resize: vertical; }
.muted { color: var(--muted); font-weight: 400; }
.small { font-size: 12px; }
.hint { font-size: 12px; color: var(--muted); min-height: 14px; margin: 2px 0 0; }
.hint.ok { color: var(--ok); } .hint.bad { color: var(--err); } .hint.run { color: var(--accent); }

.sec-title { font-size: 15px; margin: 0; }
.sub-title { font-size: 12px; color: var(--muted); margin: 14px 0 8px; text-transform: uppercase; letter-spacing: .4px; }
.sep { border: none; border-top: 1px solid var(--border); margin: 16px 0; }
.hist-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }

.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.btn { border: 1px solid var(--border); border-radius: 9px; padding: 11px 16px; font-size: 15px; cursor: pointer; background: var(--panel-2); color: var(--text); font-weight: 600; }
.btn:hover { filter: brightness(1.08); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }
.btn-ghost { background: transparent; font-weight: 500; }
.btn-mini { padding: 6px 10px; font-size: 13px; }
.btn-warn { background: color-mix(in srgb, var(--warn) 22%, transparent); border-color: var(--warn); color: var(--text); }
.btn-danger { background: color-mix(in srgb, var(--err) 20%, transparent); border-color: var(--err); color: var(--text); }
.btn-ok { background: color-mix(in srgb, var(--ok) 20%, transparent); border-color: var(--ok); color: var(--text); }

.chip { background: var(--panel-2); border: 1px solid var(--border); border-radius: 20px; padding: 4px 11px; font-size: 12.5px; font-weight: 600; cursor: pointer; color: var(--text); }
.chip-op { border-color: var(--accent); }

/* ---- Segmented tabs ---- */
.seg { display: flex; gap: 6px; margin-bottom: 12px; }
.seg-btn { flex: 1; background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); border-radius: 9px; padding: 9px; font-size: 14px; font-weight: 600; cursor: pointer; }
.seg-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.filters-row { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.filters-row input[type="search"] { flex: 1; min-width: 160px; }
.filters-grid { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.filters-grid .field { margin: 0; }

/* ---- Lists ---- */
.list { display: flex; flex-direction: column; gap: 8px; max-height: 72vh; overflow: auto; }
.empty { color: var(--muted); text-align: center; padding: 24px; font-size: 13px; }
.lrow { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; cursor: pointer; transition: border-color .12s; }
.lrow:hover { border-color: var(--accent); }
.lrow:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.lrow .l-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.lrow .l-id { font-size: 14px; font-weight: 700; letter-spacing: .3px; }
.lrow .l-lpn { color: var(--muted); font-size: 12.5px; font-weight: 600; letter-spacing: .4px; }
.lrow .l-desc { font-size: 13.5px; margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lrow .l-meta { color: var(--muted); font-size: 12px; margin-top: 5px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.lrow .l-price { font-weight: 800; color: var(--accent); }

.venta-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.venta-row .v-main { min-width: 0; }
.venta-row .v-btn { white-space: nowrap; }

/* ---- Badges ---- */
.badge { font-size: 11px; border-radius: 6px; padding: 2px 7px; border: 1px solid var(--border); font-weight: 700; }
.badge.abierta { color: var(--warn); border-color: var(--warn); }
.badge.resuelta { color: var(--ok); border-color: var(--ok); }
.badge.recibir { color: var(--accent); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.badge.muted { color: var(--muted); }

/* ---- Drawer ---- */
.drawer-scrim { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 40; }
.drawer { position: fixed; top: 0; right: 0; height: 100%; width: min(560px, 96vw); background: var(--panel); border-left: 1px solid var(--border); box-shadow: -4px 0 24px rgba(0,0,0,.25); z-index: 41; display: flex; flex-direction: column; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.drawer-head h2 { font-size: 17px; }
.drawer-body { padding: 16px 18px; overflow: auto; }

.kv-grid { display: grid; grid-template-columns: auto 1fr; gap: 5px 12px; font-size: 13.5px; margin-bottom: 6px; }
.kv-grid dt { color: var(--muted); }
.kv-grid dd { margin: 0; font-weight: 600; }

.card { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 14px; margin: 12px 0; }
.card.recibir { border-color: var(--accent); }
.card h3 { font-size: 14px; margin: 0 0 10px; }
.card.recibir h3 { color: var(--accent); }

.res-buttons { display: flex; flex-direction: column; gap: 8px; }
.res-buttons .btn { text-align: left; }
.res-form { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }

/* ---- Modal ---- */
.modal-scrim { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 60; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); width: min(520px, 96vw); max-height: 92vh; overflow: auto; padding: 18px; }
.modal-sm { width: min(360px, 96vw); }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.modal-head h2 { font-size: 17px; }
.modal-body { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 12px; margin-bottom: 14px; font-size: 13.5px; }
.modal-body .mb-desc { font-weight: 600; }
.modal-body .mb-meta { color: var(--muted); margin-top: 4px; }

.toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px 18px; box-shadow: var(--shadow); font-size: 14px; max-width: 90vw; z-index: 80; }
.toast.ok { border-color: var(--ok); } .toast.err { border-color: var(--err); } .toast.warn { border-color: var(--warn); }
.hidden { display: none !important; }