:root {
  --gold-dark: #8A5F1D;
  --gold-mid: #C99A3D;
  --gold-light: #E5C46B;
  --gold-pale: #F5E6C8;
  --ink: #2a1f12;
  --ink-muted: #5c4a30;
  --card: #FFFDF7;
  --chip: #F3E7CB;
  --border: rgba(138, 95, 29, 0.2);
  --radius: 16px;
  --shadow: 0 8px 28px rgba(42, 31, 18, 0.08);
  --success: #2d6a4f;
  --danger: #a33a3a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: #f7f3ea;
  line-height: 1.55;
  min-height: 100vh;
}

/* Header */
.site-header {
  background: linear-gradient(135deg, #8A5F1D 0%, #C99A3D 42%, #E5C46B 52%, #C99A3D 72%, #8A5F1D 100%);
  color: #fff;
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 20px rgba(0,0,0,.12);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: .3px;
}

.logo span {
  font-weight: 400;
  opacity: .9;
  font-size: .9rem;
  margin-left: .4rem;
}

.badge {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .6px;
  padding: .28rem .7rem;
  border-radius: 999px;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.3);
}

/* Layout */
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3.5rem;
}

/* Nav overviews */
.overview-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1.5rem;
}

.overview-nav button {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink-muted);
  font-size: .84rem;
  font-weight: 600;
  padding: .5rem .9rem;
  border-radius: 999px;
  cursor: pointer;
  transition: .15s;
}

.overview-nav button:hover {
  background: var(--chip);
  color: var(--gold-dark);
}

.overview-nav button.active {
  background: linear-gradient(135deg, var(--gold-mid), var(--gold-dark));
  color: #fff;
  border-color: transparent;
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
  overflow: hidden;
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-mid), transparent);
}

.card-h {
  padding: 1rem 1.25rem .75rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}

.card-h h2 {
  font-size: 1.05rem;
  color: var(--gold-dark);
  font-weight: 700;
}

.card-b { padding: 1.15rem 1.25rem 1.35rem; }

/* KPI grid */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: .75rem;
}

.kpi {
  background: var(--chip);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .85rem 1rem;
}

.kpi .l {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--gold-mid);
  margin-bottom: .2rem;
}

.kpi .v {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
}

.kpi .s {
  font-size: .78rem;
  color: var(--ink-muted);
  margin-top: .15rem;
}

/* Reference table */
.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}

.ref-table th {
  text-align: left;
  font-size: .7rem;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--gold-mid);
  padding: .5rem .4rem;
  border-bottom: 1px solid var(--border);
}

.ref-table td {
  padding: .55rem .4rem;
  border-bottom: 1px solid rgba(138,95,29,.08);
}

.ref-table tr:last-child td { border-bottom: none; }

.tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  padding: .15rem .45rem;
  border-radius: 5px;
  background: var(--chip);
  color: var(--gold-dark);
}

.tag.import { background: #fde8e8; color: var(--danger); }
.tag.export { background: #e3f5eb; color: var(--success); }

/* Grid 2 col */
.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 820px) {
  .two { grid-template-columns: 1fr; }
}

/* Forms */
label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--ink-muted);
  margin-bottom: .3rem;
}

input, select {
  width: 100%;
  padding: .55rem .75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: .92rem;
  background: #fff;
  color: var(--ink);
}

input:focus, select:focus {
  outline: none;
  border-color: var(--gold-mid);
  box-shadow: 0 0 0 3px rgba(201,154,61,.18);
}

.field { margin-bottom: .85rem; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .7rem;
}

@media (max-width: 520px) {
  .field-row { grid-template-columns: 1fr; }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  padding: .6rem 1.15rem;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: .12s;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--gold-mid), var(--gold-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(138,95,29,.22);
}

.btn-primary:hover { box-shadow: 0 6px 18px rgba(138,95,29,.32); }

.btn-ghost {
  background: var(--chip);
  color: var(--gold-dark);
  border: 1px solid var(--border);
}

.btn-block { width: 100%; }

.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Balance list */
.bal-list {
  display: grid;
  gap: .5rem;
}

.bal-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .65rem .85rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: .9rem;
}

.bal-item strong { color: var(--ink); }

/* Log */
.log {
  background: #1e1a14;
  color: #e8dcc4;
  border-radius: 12px;
  padding: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .78rem;
  max-height: 240px;
  overflow-y: auto;
  line-height: 1.5;
}

.log .e { margin-bottom: .4rem; padding-bottom: .4rem; border-bottom: 1px solid rgba(255,255,255,.06); }
.log .e:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.log .ok { color: #7dcea0; }
.log .err { color: #f1948a; }
.log .info { color: #f5cba7; }

/* Flow steps */
.flow {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1rem;
}

.flow span {
  font-size: .78rem;
  font-weight: 600;
  padding: .35rem .7rem;
  border-radius: 8px;
  background: var(--chip);
  color: var(--gold-dark);
  border: 1px solid var(--border);
}

.hint {
  font-size: .78rem;
  color: var(--ink-muted);
  margin-top: .3rem;
}

.disclaimer {
  margin-top: 1.5rem;
  padding: 1rem 1.2rem;
  background: var(--chip);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .8rem;
  color: var(--ink-muted);
}

.disclaimer strong { color: var(--gold-dark); }

/* Panels visibility */
.panel { display: none; }
.panel.active { display: block; }

/* Loading */
#loading {
  position: fixed;
  inset: 0;
  background: rgba(42,31,18,.88);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .85rem;
  z-index: 100;
  color: #fff;
}

#loading.hidden { display: none; }

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255,255,255,.2);
  border-top-color: var(--gold-light);
  border-radius: 50%;
  animation: spin .75s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.section-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gold-mid);
  margin: 1.1rem 0 .6rem;
}

.section-label:first-child { margin-top: 0; }

.empty {
  text-align: center;
  color: var(--ink-muted);
  font-size: .88rem;
  padding: 1rem;
}