:root {
  --navy: #132c4c;
  --navy-2: #1c3f6b;
  --navy-soft: #eef2f7;
  --orange: #e07a2c;
  --orange-soft: #fdf1e5;
  --green: #1f9d55;
  --green-soft: #e9f8ef;
  --red: #d64545;
  --red-soft: #fdecec;
  --border: #e3e8ef;
  --text: #1c2733;
  --text-muted: #6b7785;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(19, 44, 76, 0.08), 0 1px 2px rgba(19, 44, 76, 0.06);
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

a { color: inherit; }

.topbar {
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.topbar .brand img { height: 26px; }

.topbar nav {
  display: flex;
  gap: 4px;
  flex: 1;
}
.topbar nav a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
}
.topbar nav a:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.topbar nav a.active { background: rgba(255, 255, 255, 0.14); color: #fff; }

.topbar .fx-ticker {
  display: flex;
  gap: 14px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.85);
  white-space: nowrap;
}
.topbar .fx-ticker b { color: #fff; }
.topbar .fx-ticker.stale { color: var(--orange); }

.topbar .user-menu {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  white-space: nowrap;
}
.topbar .user-menu a { text-decoration: none; color: rgba(255, 255, 255, 0.75); }
.topbar .user-menu a:hover { color: #fff; }

.topbar-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 6px 8px;
  margin-left: auto;
}

.page {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
}

.card + .card { margin-top: 16px; }

h1 { font-size: 20px; margin: 0 0 4px; color: var(--navy); }
h2.section-title {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 0 0 12px;
  font-weight: 700;
}

label {
  display: block;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 500;
}

input[type="text"], input[type="number"], input[type="email"], input[type="password"], select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13.5px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--navy-2);
  box-shadow: 0 0 0 3px rgba(28, 63, 107, 0.12);
}

.field { margin-bottom: 12px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.field-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.help-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--navy-soft);
  color: var(--navy-2);
  font-size: 10.5px;
  font-weight: 700;
  cursor: help;
  margin-left: 5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  border: none;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); }
.btn-secondary { background: var(--navy-soft); color: var(--navy); }
.btn-secondary:hover { background: #dde6f0; }
.btn-orange { background: var(--orange); color: #fff; }
.btn-danger { background: var(--red-soft); color: var(--red); }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.calc-grid {
  display: grid;
  grid-template-columns: 380px 1fr 300px;
  gap: 16px;
  align-items: start;
}
.calc-grid--2col { grid-template-columns: 340px 1fr; }
@media (max-width: 1100px) {
  .calc-grid { grid-template-columns: 1fr; }
}

.total-amount { font-size: 30px; font-weight: 800; color: var(--navy); }
.total-amount .sub { font-size: 13px; color: var(--text-muted); font-weight: 500; margin-left: 8px; }

.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 14px; }
.stat-box { background: var(--navy-soft); border-radius: 10px; padding: 10px 12px; }
.stat-box .label { font-size: 11px; color: var(--text-muted); }
.stat-box .value { font-size: 14.5px; font-weight: 700; color: var(--navy); }

.option-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.option-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.option-row.selected { border-color: var(--navy-2); background: var(--navy-soft); }
.option-row .name { font-weight: 600; font-size: 13.5px; }
.option-row .meta { font-size: 11.5px; color: var(--text-muted); }
.option-row .amount { font-weight: 700; color: var(--navy); font-size: 14px; }

.breakdown-bar { display: flex; height: 22px; border-radius: 6px; overflow: hidden; margin-top: 8px; }
.breakdown-legend { display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 10px; font-size: 12px; }
.breakdown-legend .dot { width: 9px; height: 9px; border-radius: 3px; display: inline-block; margin-right: 5px; }

.warning-box {
  background: var(--orange-soft);
  border: 1px solid #f2d3ae;
  color: #9a5b1c;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 12.5px;
  margin-bottom: 8px;
}
.warning-box.danger { background: var(--red-soft); border-color: #f2b8b8; color: #a13030; }
.warning-box.info { background: var(--navy-soft); border-color: #cfd9e8; color: var(--navy-2); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-red { background: var(--red-soft); color: var(--red); }
.badge-navy { background: var(--navy-soft); color: var(--navy-2); }

table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 8px 10px;
  border-bottom: 2px solid var(--border);
}
table.data-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); }
table.data-table tr:hover td { background: var(--navy-soft); }
table.data-table input { padding: 4px 6px; font-size: 12.5px; }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tabs button {
  background: none; border: none; padding: 10px 14px; font-size: 13.5px; font-weight: 600;
  color: var(--text-muted); cursor: pointer; border-bottom: 2px solid transparent;
  white-space: nowrap; flex: 0 0 auto;
}
.tabs button.active { color: var(--navy); border-bottom-color: var(--navy); }

.center-form { max-width: 380px; margin: 60px auto; }
.center-form .card { text-align: left; }

.muted { color: var(--text-muted); }
.mt-8 { margin-top: 8px; } .mt-12 { margin-top: 12px; } .mt-16 { margin-top: 16px; }
.flex { display: flex; align-items: center; } .flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; }

.spinner {
  width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.tooltip-wrap { position: relative; display: inline-block; }
.tooltip-bubble {
  display: none; position: absolute; bottom: 130%; left: 50%; transform: translateX(-50%);
  background: var(--navy); color: #fff; padding: 8px 10px; border-radius: 8px; font-size: 11.5px;
  width: 220px; z-index: 30; box-shadow: var(--shadow); font-weight: 400;
}
.tooltip-wrap:hover .tooltip-bubble { display: block; }

/* ---- Mobile navigation ---- */
@media (max-width: 768px) {
  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding: 10px 16px;
  }
  .topbar .brand { flex: 1; }
  .topbar-toggle { display: block; }
  .topbar nav,
  .topbar .fx-ticker,
  .topbar .user-menu {
    display: none;
    width: 100%;
    flex: none;
  }
  .topbar.nav-open nav,
  .topbar.nav-open .fx-ticker,
  .topbar.nav-open .user-menu {
    display: flex;
  }
  .topbar nav { flex-direction: column; gap: 2px; margin-top: 10px; }
  .topbar nav a { padding: 10px 12px; }
  .topbar .fx-ticker {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }
  .topbar .user-menu {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    justify-content: space-between;
  }
}

/* ---- Small screens ---- */
@media (max-width: 600px) {
  .page { padding: 12px; }
  .card { padding: 14px; }
  .card + .card { margin-top: 12px; }
  h1 { font-size: 18px; }
  .field-row-2 { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .total-amount { font-size: 24px; }
  .center-form { margin: 24px auto; max-width: 100%; }
  .flex, .flex-between { flex-wrap: wrap; }
  table.data-table { display: block; overflow-x: auto; white-space: nowrap; }
  .tooltip-bubble { width: min(220px, 70vw); }
}

@media (max-width: 400px) {
  .field-row { gap: 6px; }
}