/* =========================================================
   COTIZADOR — hoja de estilos
   Dirección visual: papelería administrativa / libro de folios.
   Tinta petróleo + papel cálido + sello rojo para estatus.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --paper: #f6f4ee;
  --paper-raised: #ffffff;
  --ink: #1c2624;
  --ink-soft: #4a5654;
  --muted: #8b8478;
  --border: #ddd6c7;
  --border-strong: #c7bfab;

  --primary: #0e4a47;
  --primary-dark: #093431;
  --primary-soft: #e4efec;

  --sello: #9a2b2b;
  --sello-soft: #f6e6e2;

  --ok: #2f6f4e;
  --ok-soft: #e3f0e6;
  --warn: #9a6b0e;
  --warn-soft: #faf1dd;
  --bad: #9a2b2b;
  --bad-soft: #f6e6e2;

  --radius: 10px;
  --shadow: 0 1px 2px rgba(28,38,36,.06), 0 6px 20px -8px rgba(28,38,36,.18);
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-ledger: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  background-image:
    linear-gradient(var(--paper), var(--paper)),
    repeating-linear-gradient(180deg, rgba(28,38,36,.028) 0 1px, transparent 1px 28px);
  background-attachment: local, fixed;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { font-family: var(--font-ui); font-weight: 700; margin: 0; color: var(--ink); }

.mono, .folio, .cifra { font-family: var(--font-ledger); font-variant-numeric: tabular-nums; }

/* ---------- Layout shell ---------- */
.shell {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 18px 60px;
}

/* ---------- Header / masthead ---------- */
.masthead {
  background: var(--primary);
  background-image: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border-bottom: 4px solid var(--sello);
}
.masthead-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 20px 18px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0; }
.brand-logo {
  width: 48px; height: 48px; border-radius: 10px;
  object-fit: contain; background: #fff; padding: 4px;
  flex-shrink: 0;
}
.brand-mono {
  width: 48px; height: 48px; border-radius: 10px;
  background: rgba(255,255,255,.12);
  border: 1.5px solid rgba(255,255,255,.35);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-ledger); font-weight: 700; font-size: 17px;
  letter-spacing: .5px; flex-shrink: 0;
}
.brand-text h1 { font-size: 19px; color: #fff; letter-spacing: .2px; }
.brand-text .tag {
  font-family: var(--font-ledger); font-size: 11px; text-transform: uppercase;
  letter-spacing: 1.4px; color: rgba(255,255,255,.72); margin-top: 2px;
}

/* ---------- Nav ---------- */
nav.tabs {
  max-width: 880px; margin: 0 auto; padding: 0 18px;
  display: flex; gap: 4px; overflow-x: auto;
}
nav.tabs a {
  color: rgba(255,255,255,.78);
  font-size: 13.5px; font-weight: 600;
  padding: 11px 14px 12px;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}
nav.tabs a:hover { color: #fff; }
nav.tabs a.active { color: #fff; border-bottom-color: var(--sello); }

/* ---------- Page title bar ---------- */
.pagebar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 22px 0 16px; flex-wrap: wrap;
}
.pagebar h2 { font-size: 21px; }
.pagebar .sub { color: var(--muted); font-size: 13px; margin-top: 3px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary); color: #fff;
  border: none; border-radius: 8px;
  padding: 10px 16px; font-size: 14px; font-weight: 600;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-ui);
  transition: transform .06s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.secondary { background: #fff; color: var(--ink); border: 1.5px solid var(--border-strong); }
.btn.secondary:hover { background: var(--paper); border-color: var(--muted); }
.btn.danger { background: #fff; color: var(--bad); border: 1.5px solid var(--sello-soft); }
.btn.danger:hover { background: var(--sello-soft); }
.btn.whatsapp { background: var(--sello); }
.btn.whatsapp:hover { background: #7a2222; }
.btn.small { padding: 6px 11px; font-size: 12.5px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }

/* ---------- Cards ---------- */
.card {
  background: var(--paper-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  margin-bottom: 14px;
}
.card-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; }

details.card summary { cursor: pointer; list-style: none; }
details.card summary::-webkit-details-marker { display: none; }
details.card summary::before {
  content: '▸'; display: inline-block; margin-right: 8px; color: var(--muted);
  transition: transform .15s ease;
}
details.card[open] summary::before { transform: rotate(90deg); }

/* ---------- Estatus: sello / stamp ---------- */
.stamp {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-ledger); font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1px;
  padding: 4px 10px 5px; border-radius: 20px;
  border: 1.5px dashed currentColor;
  transform: rotate(-2deg);
}
.stamp.pendiente { color: var(--warn); background: var(--warn-soft); }
.stamp.aprobada  { color: var(--ok); background: var(--ok-soft); }
.stamp.rechazada { color: var(--bad); background: var(--bad-soft); }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 8px; font-size: 13.5px; }
thead th {
  font-family: var(--font-ledger); font-size: 10.5px; text-transform: uppercase;
  letter-spacing: .8px; color: var(--muted); border-bottom: 1.5px solid var(--border-strong);
  padding-bottom: 8px;
}
tbody tr { border-bottom: 1px dashed var(--border); }
tbody tr:last-child { border-bottom: none; }
.right { text-align: right; }
.muted { color: var(--muted); }

/* ---------- Totals ---------- */
.totals {
  display: flex; flex-direction: column; align-items: flex-end; gap: 4px;
  font-family: var(--font-ledger); font-size: 13.5px;
}
.totals .grand {
  font-size: 18px; font-weight: 700; color: var(--primary);
  padding-top: 8px; margin-top: 4px; border-top: 1.5px solid var(--border-strong);
}

/* ---------- Forms ---------- */
.field { margin-bottom: 14px; }
.field label {
  display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-soft);
  margin-bottom: 5px;
}
input[type=text], input[type=email], input[type=number], input[type=search],
select, textarea {
  width: 100%; padding: 9px 11px; font-size: 14px; font-family: var(--font-ui);
  border: 1.5px solid var(--border-strong); border-radius: 7px;
  background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
textarea { resize: vertical; }

/* ---------- Empty state ---------- */
.empty {
  text-align: center; padding: 52px 20px;
  border: 1.5px dashed var(--border-strong); border-radius: var(--radius);
  background: var(--paper-raised);
}
.empty h2 { font-size: 17px; margin-bottom: 6px; }
.empty p { color: var(--muted); font-size: 13.5px; margin: 0 0 18px; }

/* ---------- Avatar / initials ---------- */
.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--primary-soft); color: var(--primary);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; flex-shrink: 0;
}

/* ---------- Chips for tax labels ---------- */
.chip {
  display: inline-block; font-family: var(--font-ledger); font-size: 10.5px;
  padding: 2px 7px; border-radius: 5px; background: var(--paper);
  border: 1px solid var(--border-strong); color: var(--ink-soft);
}

/* ---------- Footer ---------- */
footer.site {
  max-width: 880px; margin: 30px auto 0; padding: 16px 18px 0;
  border-top: 1px dashed var(--border-strong);
  color: var(--muted); font-size: 12px; text-align: center;
}

@media (max-width: 600px) {
  .pagebar { flex-direction: column; align-items: flex-start; }
  .brand-text h1 { font-size: 16.5px; }
  th, td { font-size: 12.5px; }
}