:root {
  --bg: #f5f7f8;
  --ink: #162023;
  --muted: #6c797d;
  --line: #dbe3e5;
  --panel: #ffffff;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --warn: #a16207;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 230px 1fr;
  color: var(--ink);
  background: var(--bg);
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.login-screen {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: rgba(245, 247, 248, 0.96);
  padding: 20px;
}
.login-card {
  width: min(380px, 100%);
  display: grid;
  gap: 14px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 12px 35px rgba(16, 35, 37, 0.16);
}
.login-card h1 { font-size: 25px; }
.login-card p { color: var(--muted); }
.login-card label { display: grid; gap: 6px; color: var(--muted); }

.sidebar {
  background: #102325;
  color: #e9f2f0;
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
}

.brand { margin-bottom: 28px; }
.brand strong { display: block; font-size: 22px; }
.brand span { color: #a9bebc; }

nav { display: grid; gap: 8px; }
.nav {
  border: 0;
  background: transparent;
  color: #d7e5e3;
  padding: 11px 12px;
  text-align: left;
  border-radius: 6px;
  cursor: pointer;
}
.nav.active, .nav:hover { background: #1d3a3d; }
.logout-btn {
  margin-top: auto;
  background: #1d3a3d;
  border-color: #2b4c50;
}
.viewer-mode .admin-only { display: none !important; }

main { min-width: 0; padding: 22px; }

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

h1, h2, p { margin: 0; }
h1 { font-size: 28px; }
h2 { font-size: 17px; margin-bottom: 14px; }
.subsection-title { margin-top: 16px; }
.topbar p { color: var(--muted); margin-top: 4px; }

.actions { display: flex; gap: 8px; }
input, select, textarea, button, .button {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  color: var(--ink);
  font: inherit;
}
input, select, textarea { width: 100%; padding: 9px 10px; }
textarea { min-height: 80px; resize: vertical; }
button, .button {
  padding: 9px 13px;
  cursor: pointer;
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
button:hover, .button:hover { background: var(--accent-dark); }
button.secondary {
  background: #eef4f4;
  color: var(--ink);
  border-color: var(--line);
}
button.secondary:hover { background: #dfe9ea; }
button.danger {
  background: #b91c1c;
  border-color: #b91c1c;
}
button.tiny {
  padding: 5px 8px;
  font-size: 12px;
}
.operation-log-detail summary { cursor: pointer; color: var(--accent); }
.operation-log-detail div { margin-top: 5px; white-space: normal; }
.operation-log-detail code { white-space: pre-wrap; word-break: break-word; }
button.text-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  display: inline;
  text-align: left;
  text-decoration: underline;
}
button.text-link:hover { background: transparent; color: var(--accent-dark); }
.hidden { display: none !important; }

.view { display: none; }
.view.active { display: block; }

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}
.metrics div, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(16, 35, 37, 0.04);
}
.metrics div { padding: 16px; }
.metrics span { display: block; color: var(--muted); }
.metrics strong { display: block; margin-top: 5px; font-size: 24px; }

.panel { padding: 16px; margin-bottom: 14px; }
.panel-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.panel-actions { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; justify-content: flex-end; }
.inline-form { display: flex; gap: 8px; align-items: end; flex-wrap: wrap; }
.inline-form label { color: var(--muted); display: grid; gap: 4px; }
.inline-form input { width: 120px; }
.inline-totals { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.backup-panel { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.backup-panel p { color: var(--muted); }
.status-ok { color: #087443; font-weight: 700; }
.status-fail { color: #b42318; font-weight: 700; }
.backup-panel .inline-form { margin-top: 10px; }
.backup-panel .inline-form input { width: min(520px, 52vw); }
.backup-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }

.grid.two {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: 14px;
  align-items: start;
}

.form { display: grid; gap: 12px; }
.form label { display: grid; gap: 5px; color: var(--muted); }
.form label input, .form label select, .form label textarea { color: var(--ink); }
.form.wide { max-width: 980px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.import-hint { color: var(--muted); align-self: end; padding-bottom: 9px; }
.span2 { grid-column: span 2; }
.form-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.input-action { display: flex; gap: 8px; align-items: center; }
.input-action input { min-width: 0; flex: 1; }
.input-action button { flex: 0 0 auto; }
.modal-dialog {
  width: min(420px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  color: var(--ink);
  background: var(--panel);
  box-shadow: 0 16px 42px rgba(16, 35, 37, 0.22);
}
.modal-dialog::backdrop { background: rgba(16, 35, 37, 0.45); }
.modal-dialog h2 { margin-top: 0; }
.note { color: var(--muted); display: grid; gap: 10px; }
.customer-actions { display: flex; flex-wrap: wrap; gap: 6px 10px; }
.rut-list { display: flex; flex-wrap: wrap; gap: 6px; }
.rut-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f7faf9;
  white-space: nowrap;
}
.rut-pill small { color: var(--muted); }
.rut-remove {
  padding: 2px 5px;
  font-size: 12px;
  background: #f8e7e7;
  color: #8f1d1d;
  border-color: #efb4b4;
}
.rut-remove:hover { background: #f3d0d0; }
.danger-zone { border-color: #efb4b4; }
.danger-zone p { color: var(--muted); }
.check-row {
  display: flex !important;
  grid-template-columns: none !important;
  align-items: center;
  gap: 8px !important;
}
.check-row input { width: auto; }

.table-wrap { overflow: auto; max-height: 62vh; border: 1px solid var(--line); border-radius: 6px; }
.table-wrap.compact { max-height: 260px; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
.table-wrap.compact table { min-width: 520px; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: center; vertical-align: middle; }
th { background: #eef4f4; position: sticky; top: 0; z-index: 1; }
tfoot th { background: #f7faf9; position: static; }
td.amount { text-align: center; font-variant-numeric: tabular-nums; }
.invoice-amount { color: #b42318; font-weight: 700; }
.paid-amount { color: #087443; font-weight: 700; }
.tag { color: var(--warn); font-weight: 700; }
.muted-tag { color: var(--muted); }

#toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: #102325;
  color: white;
  padding: 10px 12px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
}
#toast.show { opacity: 1; }

@media (max-width: 860px) {
  body { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  nav { grid-template-columns: repeat(3, 1fr); }
  .topbar, .grid.two { grid-template-columns: 1fr; display: grid; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
}