/* ============================================================
   MATRIZ ORÇAMENTÁRIA — Design System v2
   ============================================================ */
:root {
  --bg: #f0f5fb;
  --bg2: #e8f0fa;
  --card: #ffffff;
  --header: #0b2f61;
  --header-2: #144a94;
  --accent: #1e6fd9;
  --accent-light: #ddeeff;
  --line: #d0dff5;
  --text: #1a2d47;
  --muted: #4a6080;
  --ok: #0a7a32;
  --ok-bg: #e6f7ee;
  --warn: #9a5a00;
  --warn-bg: #fff3e0;
  --danger: #c0392b;
  --danger-bg: #fdecea;
  --v1: #1565c0;
  --v2: #2e7d32;
  --v3: #6a1b9a;
  --v4: #e65100;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(11,47,97,0.10);
  --shadow-lg: 0 8px 32px rgba(11,47,97,0.16);
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
}

/* ============================================================
   GLOBALS & ANIMATIONS
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(30,111,217,0.25); }
  50%       { box-shadow: 0 0 0 8px rgba(30,111,217,0); }
}
@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

/* ============================================================
   HEADER
   ============================================================ */
header {
  background: linear-gradient(135deg, var(--header) 0%, var(--header-2) 60%, #1a5fb0 100%);
  color: #fff;
  text-align: center;
  padding: 42px 20px 36px;
  box-shadow: 0 6px 28px rgba(9,41,82,0.32);
  position: relative;
  overflow: hidden;
}
header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
header h1 {
  margin: 0;
  font-size: 1.85rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.3px;
  position: relative;
}
header h1 a { color: #fff; text-decoration: none; }
header p {
  margin: 10px auto 0;
  max-width: 860px;
  opacity: 0.88;
  font-size: 0.96rem;
  position: relative;
}

/* ============================================================
   WORKFLOW NAV BAR
   ============================================================ */
.workflow-nav {
  background: var(--header);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2px;
  padding: 0 12px;
  border-bottom: 3px solid rgba(255,255,255,0.10);
  position: sticky;
  top: 0;
  z-index: 100;
}
.workflow-nav a {
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  padding: 10px 16px;
  font-size: 0.83rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 3px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  margin-bottom: -3px;
}
.workflow-nav a:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.workflow-nav a.active {
  color: #fff;
  border-bottom-color: #4db6ff;
}
.workflow-nav .nav-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  font-size: 0.72rem;
  font-weight: 800;
  flex-shrink: 0;
}
.workflow-nav a.active .nav-step {
  background: #4db6ff;
  color: #0b2f61;
}
.workflow-nav a.nav-editable {
  color: #a5d6a7;
  box-shadow: inset 0 -3px 0 #66bb6a;
}
.workflow-nav a.nav-editable:hover {
  color: #c8e6c9;
  background: rgba(102,187,106,0.12);
}
.workflow-nav a.active.nav-editable {
  color: #fff;
  box-shadow: inset 0 -3px 0 #66bb6a;
}
.nav-edit-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #66bb6a;
  margin-left: 4px;
  vertical-align: middle;
  flex-shrink: 0;
}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
main {
  width: min(1400px, 96%);
  margin: 28px auto;
  display: grid;
  gap: 20px;
  animation: fadeUp 0.4s ease both;
}

/* ============================================================
   PANEL / CARD
   ============================================================ */
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.panel:hover { box-shadow: var(--shadow-lg); }

.panel-header {
  padding: 14px 18px;
  background: linear-gradient(180deg, #f4f9ff 0%, #e8f2ff 100%);
  border-bottom: 1px solid var(--line);
  font-weight: 700;
  color: #0e3060;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.panel-header i { color: var(--accent); }

.panel-body { padding: 18px; }

/* ============================================================
   DASHBOARD STEP CARDS
   ============================================================ */
.step-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.step-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  animation: fadeUp 0.4s ease both;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.step-card .step-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  flex-shrink: 0;
}
.step-card .step-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}
.step-card .step-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}
.step-card .step-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 99px;
  margin-top: auto;
  width: fit-content;
}
.badge-ok    { background: var(--ok-bg); color: var(--ok); }
.badge-warn  { background: var(--warn-bg); color: var(--warn); }
.badge-info  { background: var(--accent-light); color: #1254a8; }
.badge-muted { background: #f0f3f7; color: var(--muted); }

.icon-config  { background: linear-gradient(135deg,#0b2f61,#1e6fd9); }
.icon-units   { background: linear-gradient(135deg,#1565c0,#42a5f5); }
.icon-v1      { background: linear-gradient(135deg,var(--v1),#5e9bf5); }
.icon-v2      { background: linear-gradient(135deg,var(--v2),#66bb6a); }
.icon-v3      { background: linear-gradient(135deg,var(--v3),#ba68c8); }
.icon-v4      { background: linear-gradient(135deg,var(--v4),#ffa726); }
.icon-result  { background: linear-gradient(135deg,#37474f,#78909c); }

/* ============================================================
   NOTE GRID
   ============================================================ */
.note-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.note-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px;
  background: #f8fbff;
  font-size: 0.88rem;
  color: var(--muted);
  border-left: 4px solid var(--accent);
  transition: background var(--transition);
}
.note-card:hover { background: #eef5ff; }
.note-card strong { color: #0e3060; display: block; margin-bottom: 5px; }

/* ============================================================
   FORM FIELDS
   ============================================================ */
.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  align-items: end;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.field label {
  font-size: 0.82rem;
  font-weight: 700;
  color: #1e3d6b;
  letter-spacing: 0.01em;
}
.field input,
.field textarea,
.field select {
  border: 1.5px solid #c0d4f0;
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  font-size: 0.92rem;
  font-family: inherit;
  width: 100%;
  background: #fff;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(30,111,217,0.14);
}
.field input[type="number"] { font-variant-numeric: tabular-nums; }
.field textarea { resize: vertical; min-height: 70px; }

.field-hint {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 2px;
}

.weights-inline {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 1fr));
  gap: 12px;
}
.weights-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 12px;
}
.weights-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 12px;
}

/* segurança modo toggle */
.radio-group {
  display: flex;
  gap: 10px;
  align-items: center;
}
.radio-group label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.btn {
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  color: #fff;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: filter var(--transition), transform var(--transition);
  font-family: inherit;
}
.btn:hover  { filter: brightness(1.12); transform: translateY(-1px); }
.btn:active { filter: brightness(0.95); transform: translateY(0); }

.btn-primary  { background: linear-gradient(135deg, #0b52b5, #1e6fd9); }
.btn-save     { background: linear-gradient(135deg, #0f5bb3, #1a7bd4); }
.btn-update   { background: linear-gradient(135deg, #1a7d36, #22a04a); }
.btn-new      { background: linear-gradient(135deg, #455a7a, #607d9e); }
.btn-delete   { background: linear-gradient(135deg, #c0392b, #e74c3c); }
.btn-calc     { background: linear-gradient(135deg, #7c4a00, #b06b00); }
.btn-add      { background: linear-gradient(135deg, #006064, #00838f); }
.btn-secondary {
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
}
.btn-secondary:hover { background: var(--accent-light); }

/* ============================================================
   KPI ROW
   ============================================================ */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.kpi {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, #f8fbff, #eef5ff);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition);
}
.kpi:hover { transform: translateY(-2px); }
.kpi::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #5ba3ff);
}
.kpi-label {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.kpi-value {
  margin-top: 6px;
  font-size: 1.25rem;
  color: #0e3060;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   TABLE
   ============================================================ */
.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
  font-size: 0.87rem;
}
th, td {
  border-bottom: 1px solid #e0ecfa;
  padding: 9px 10px;
  text-align: left;
  vertical-align: middle;
}
th {
  background: linear-gradient(180deg, #0f3768 0%, #0b2f61 100%);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 2;
  font-size: 0.80rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
tbody tr { transition: background var(--transition); }
tbody tr:hover td { background: #f0f7ff; }
td input[type="number"],
td input[type="text"] {
  width: 120px;
  border: 1.5px solid #c0d4f0;
  border-radius: 6px;
  padding: 5px 7px;
  font-size: 0.88rem;
  font-family: inherit;
  background: #fff;
  transition: border-color var(--transition);
}
td input:focus {
  border-color: var(--accent);
  outline: none;
}
.text-right  { text-align: right; }
.text-center { text-align: center; }
thead th.col-sep { border-left: 2px solid rgba(255,255,255,0.28); }
tbody td.col-sep, tfoot td.col-sep { border-left: 2px solid #b8d4f5; }
.row-total td {
  background: #eef5ff;
  font-weight: 800;
  color: #0e3060;
  border-top: 2px solid #b8d4f5;
}

/* ============================================================
   STATUS & HINT
   ============================================================ */
.hint {
  color: #587094;
  font-size: 0.82rem;
  margin-top: 8px;
  display: flex;
  align-items: flex-start;
  gap: 6px;
}
.hint i { margin-top: 2px; flex-shrink: 0; }

.status {
  margin-top: 10px;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: none;
}
.status:not(:empty) { display: flex; align-items: center; gap: 6px; }
.status.ok   { color: var(--ok); background: var(--ok-bg); }
.status.warn { color: var(--warn); background: var(--warn-bg); }
.status.err  { color: var(--danger); background: var(--danger-bg); }

/* ============================================================
   SECTION DIVIDER
   ============================================================ */
.section-divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  margin: 20px 0 8px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.section-divider::before,
.section-divider::after {
  content: '';
  height: 1px;
  background: var(--line);
}

/* ============================================================
   ATTRIBUTE SELECTOR (V4)
   ============================================================ */
.attr-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px;
  background: #f8fbff;
  margin-bottom: 10px;
}
.attr-group-title {
  font-weight: 700;
  color: #0e3060;
  font-size: 0.9rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.attr-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.attr-option {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 99px;
  border: 1.5px solid #c0d4f0;
  background: #fff;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.84rem;
  user-select: none;
}
.attr-option input[type="radio"],
.attr-option input[type="checkbox"] { display: none; }
.attr-option:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  color: #1254a8;
}
.attr-option.selected {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}
.attr-option .attr-peso {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: 99px;
  background: rgba(255,255,255,0.3);
}
.attr-option:not(.selected) .attr-peso {
  background: rgba(30,111,217,0.1);
  color: var(--accent);
}

/* ============================================================
   STRUCTURE CARD (V4)
   ============================================================ */
.structure-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  overflow: hidden;
  animation: fadeUp 0.3s ease both;
}
.structure-card-header {
  padding: 10px 16px;
  background: linear-gradient(180deg, #f4f9ff, #e8f2ff);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.structure-card-body { padding: 14px; }

/* ============================================================
   LOADING SKELETON
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, #e8eef5 25%, #f5f8fd 50%, #e8eef5 75%);
  background-size: 800px 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
  height: 16px;
  margin: 4px 0;
}

/* ============================================================
   STICKY THEAD CLONE (JS-driven, page-scroll sticky header)
   ============================================================ */
.sticky-thead-clone {
  position: fixed;
  z-index: 90;
  overflow: hidden;
  pointer-events: none;
  box-shadow: 0 3px 12px rgba(11,47,97,0.22);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.sticky-thead-clone table {
  border-collapse: collapse;
  font-size: 0.87rem;
}
.sticky-thead-clone th {
  position: static !important;
  white-space: nowrap;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: linear-gradient(135deg, #001428, #00203f);
  color: #8faac8;
  text-align: center;
  padding: 24px 20px;
  font-size: 0.84rem;
  margin-top: 32px;
}
footer p { margin: 0 0 8px; }
footer a {
  color: #66ccff;
  margin: 0 10px;
  font-size: 1.1rem;
  text-decoration: none;
  transition: color var(--transition);
}
footer a:hover { color: #99ddff; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .weights-inline { grid-template-columns: repeat(2, 1fr); }
  .weights-3      { grid-template-columns: repeat(2, 1fr); }
  td input[type="number"] { width: 90px; }
  .step-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  header h1 { font-size: 1.4rem; }
}
@media (max-width: 600px) {
  .weights-inline { grid-template-columns: 1fr 1fr; }
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .btn-row { flex-direction: column; }
  main { margin: 14px auto; }
  .workflow-nav a span.nav-label { display: none; }
}