:root {
  --paper: #f4f1e9;
  --surface: #fffdf7;
  --ink: #16201d;
  --ink-soft: #4c5752;
  --primary: #0f4c43;
  --primary-700: #0a3a33;
  --accent: #cf8a3b;
  --accent-soft: #f0e6d4;
  --line: rgba(22, 32, 29, 0.12);
  --line-strong: rgba(22, 32, 29, 0.22);
  --ok: #2f7d5b;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(22,32,29,.05), 0 12px 28px -18px rgba(22,32,29,.45);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.45;
}

/* subtle paper grain */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .5;
  background-image: radial-gradient(rgba(22,32,29,.025) 1px, transparent 1px);
  background-size: 4px 4px;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px 28px;
  background: rgba(244,241,233,.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 11px;
  background: var(--primary); color: #f4f1e9;
  font-family: var(--font-display); font-weight: 600; font-size: 1.05rem;
  letter-spacing: .5px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: .98rem; letter-spacing: .2px; }
.brand-text span { font-size: .78rem; color: var(--ink-soft); }

.modules { display: flex; gap: 10px; }
.mod-toggle {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; border: 1px solid var(--line-strong); border-radius: 999px;
  font-size: .86rem; font-weight: 500; cursor: pointer; user-select: none;
  background: var(--surface); transition: .18s ease;
}
.mod-toggle:hover { border-color: var(--primary); }
.mod-toggle input { accent-color: var(--primary); width: 15px; height: 15px; }
.mod-toggle:has(input:checked) { background: var(--primary); color: #f4f1e9; border-color: var(--primary); }

/* ---------- Layout ---------- */
.layout {
  position: relative; z-index: 1;
  max-width: 1180px; margin: 0 auto; padding: 32px 28px 80px;
  display: grid; grid-template-columns: 1fr 360px; gap: 28px; align-items: start;
}
@media (max-width: 880px) { .layout { grid-template-columns: 1fr; } }

.form-col { display: flex; flex-direction: column; gap: 22px; }

/* ---------- Panels ---------- */
.panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
  animation: rise .5s cubic-bezier(.2,.8,.2,1) both;
}
.panel[hidden] { display: none; }
.panel-head {
  display: flex; align-items: baseline; gap: 14px;
  padding: 20px 24px 14px; border-bottom: 1px solid var(--line);
}
.panel-num {
  font-family: var(--font-display); font-size: .9rem; font-weight: 600;
  color: var(--accent); letter-spacing: 1px;
}
.panel-head h2 { margin: 0; font-family: var(--font-display); font-weight: 600; font-size: 1.4rem; letter-spacing: -.2px; }
.panel-body { padding: 20px 24px 24px; display: flex; flex-direction: column; gap: 16px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 480px) { .grid-2 { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .82rem; font-weight: 600; color: var(--ink-soft); }
.field label small { font-weight: 500; color: var(--ink-soft); opacity: .8; }
.field.inline-num { flex-direction: row; align-items: center; justify-content: space-between; }
.field.inline-num input { width: 90px; }

input[type="number"], input[type="text"], select, textarea {
  font-family: var(--font-body); font-size: .95rem; color: var(--ink);
  padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: 10px;
  background: var(--paper); transition: .16s ease; width: 100%;
}
textarea { resize: vertical; line-height: 1.5; }
input[type="number"]:focus, input[type="text"]:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,76,67,.12);
  background: var(--surface);
}

.check-row {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px;
  font-size: .88rem; cursor: pointer; background: var(--paper); transition: .16s ease;
}
.check-row:hover { border-color: var(--line-strong); }
.check-row input { accent-color: var(--primary); width: 16px; height: 16px; }
.check-row:has(input:checked) { background: var(--accent-soft); border-color: var(--accent); }

.hint { margin: 2px 0 0; font-size: .8rem; color: var(--accent); }
.hint.warn { color: #b4453a; }
.hint[hidden] { display: none; }

/* ---------- Subgroups ---------- */
.subgroup { display: flex; flex-direction: column; gap: 10px; padding-top: 4px; border-top: 1px dashed var(--line); }
.subgroup-title { font-size: .72rem; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; color: var(--ink-soft); }

.seg { display: inline-flex; background: var(--paper); border: 1px solid var(--line-strong); border-radius: 10px; padding: 3px; gap: 3px; width: fit-content; }
.seg label { position: relative; cursor: pointer; }
.seg input { position: absolute; opacity: 0; inset: 0; }
.seg span { display: block; padding: 7px 14px; border-radius: 7px; font-size: .84rem; font-weight: 500; transition: .15s ease; }
.seg label:has(input:checked) span { background: var(--primary); color: #f4f1e9; }
.seg-sm span { padding: 6px 10px; font-size: .8rem; }

/* chips (multi-select) */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 12px; border: 1px solid var(--line-strong); border-radius: 999px;
  font-size: .84rem; cursor: pointer; background: var(--paper); transition: .15s ease; user-select: none;
}
.chip:hover { border-color: var(--primary); }
.chip input { display: none; }
.chip:has(input:checked) { background: var(--primary); color: #f4f1e9; border-color: var(--primary); }

.especiais { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.especial {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper);
}
.especial.on { background: var(--accent-soft); border-color: var(--accent); }
.especial .esp-main { display: flex; align-items: center; gap: 10px; font-size: .88rem; }
.especial .esp-main input { accent-color: var(--primary); width: 16px; height: 16px; }
.especial .dep { display: flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--ink-soft); }
.especial .dep input { accent-color: var(--accent); }

/* ---------- Summary ---------- */
.summary-col { position: sticky; top: 86px; }
@media (max-width: 880px) { .summary-col { position: static; } }
.summary-card {
  background: var(--primary); color: #eef3ef; border-radius: 18px; padding: 26px 24px;
  box-shadow: 0 20px 44px -22px rgba(10,58,51,.7); animation: rise .6s .1s cubic-bezier(.2,.8,.2,1) both;
}
.summary-label { font-size: .76rem; letter-spacing: .8px; text-transform: uppercase; color: rgba(238,243,239,.7); }
.total {
  font-family: var(--font-display); font-weight: 600; font-size: 2.9rem; line-height: 1.05;
  letter-spacing: -1px; margin: 6px 0 18px; font-variant-numeric: tabular-nums;
  transition: opacity .15s ease;
}

.discount { padding: 14px 0; border-top: 1px solid rgba(238,243,239,.16); }
.discount .subgroup-title { color: rgba(238,243,239,.7); margin-bottom: 8px; display: block; }
.summary-card .seg { background: rgba(0,0,0,.18); border-color: rgba(238,243,239,.18); }
.summary-card .seg span { color: rgba(238,243,239,.85); }
.summary-card .seg label:has(input:checked) span { background: var(--accent); color: #2a1c08; }

.breakdown { margin: 6px 0 0; display: flex; flex-direction: column; gap: 7px; }
.breakdown div { display: flex; justify-content: space-between; font-size: .86rem; }
.breakdown dt { color: rgba(238,243,239,.75); }
.breakdown dd { margin: 0; font-variant-numeric: tabular-nums; font-weight: 500; }
.breakdown .disc dd { color: #f0c98a; }
.breakdown .row-total { padding-top: 8px; margin-top: 4px; border-top: 1px solid rgba(238,243,239,.16); font-weight: 700; }
.breakdown .row-total dt, .breakdown .row-total dd { color: #fff; font-size: .95rem; }

.implantacao {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 16px; padding: 12px 14px; border-radius: 10px;
  background: rgba(0,0,0,.16); font-size: .85rem;
}
.implantacao small { color: rgba(238,243,239,.6); }
.implantacao strong { font-variant-numeric: tabular-nums; }

.btn-pdf {
  width: 100%; margin-top: 18px; padding: 13px; border: 0; border-radius: 11px; cursor: pointer;
  background: var(--accent); color: #2a1c08; font-family: var(--font-body); font-weight: 700; font-size: .95rem;
  transition: .18s ease;
}
.btn-pdf:hover:not(:disabled) { transform: translateY(-1px); background: #dd9748; }
.btn-pdf:disabled { opacity: .4; cursor: not-allowed; }
.pdf-note { margin: 10px 0 0; font-size: .76rem; color: rgba(238,243,239,.6); text-align: center; }

@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.empty-state { text-align: center; color: var(--ink-soft); padding: 40px 20px; font-size: .9rem; }