:root {
  --navy: #0B1F33;
  --navy-2: #143049;
  --ink: #111827;
  --muted: #6B7280;
  --line: #D1D5DB;
  --paper: #F3F4F6;
  --white: #FFFFFF;
  --green: #065F46;
  --red: #991B1B;
  --accent: #1B3A57;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.45;
}

.site-header {
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  color: #fff;
}
.brand img { display: block; flex-shrink: 0; }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  gap: .1rem;
}
.brand-name {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .02em;
  text-transform: none;
  white-space: nowrap;
}
@media (max-width: 520px) {
  .brand-name { white-space: normal; font-size: .95rem; }
}
.brand-owner {
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.65);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .9rem;
  align-items: center;
}
.nav a {
  color: rgba(255,255,255,.78);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
}
.nav a:hover,
.nav a.active { color: #fff; }
.nav-muted { opacity: .7; font-weight: 400 !important; }

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 1.5rem auto 2.5rem;
}

.site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: .8rem;
  border-top: 1px solid var(--line);
  padding-top: .9rem;
}

.flash {
  padding: .75rem .9rem;
  border: 1px solid var(--line);
  background: var(--white);
  margin-bottom: 1rem;
  font-size: .92rem;
}
.flash a { color: inherit; font-weight: 600; }
.flash-success { border-color: #A7F3D0; background: #ECFDF5; color: var(--green); }
.flash-error { border-color: #FECACA; background: #FEF2F2; color: var(--red); }
.flash-warning { border-color: #FDE68A; background: #FFFBEB; color: #92400E; }

.page-login .site-header { display: none; }
.page-login .shell { max-width: 420px; margin-top: 4rem; }
.page-login .site-footer { max-width: 420px; }

.login-stage { display: grid; }
.login-panel {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 2rem 1.5rem;
  text-align: center;
}
.login-logo { margin-bottom: .85rem; }
.login-title {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: .01em;
  text-transform: none;
  color: var(--navy);
}
.login-owner {
  margin: .25rem 0 0;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #8A7349;
}
.login-lead {
  margin: .55rem 0 1.4rem;
  color: var(--muted);
  font-size: .92rem;
}

.stack-form,
.panel-form,
.card-form,
.admin-form {
  display: grid;
  gap: .9rem;
}
.stack-form label,
.panel-form label,
.card-form label,
.admin-form label,
.form-grid label {
  display: grid;
  gap: .35rem;
  text-align: left;
  font-size: .84rem;
  color: #374151;
  font-weight: 500;
}
input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: .7rem .75rem;
  font: inherit;
  background: var(--white);
  color: var(--ink);
}
input:focus, select:focus {
  outline: 1px solid var(--navy);
  border-color: var(--navy);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 0;
  padding: .72rem 1rem;
  font: inherit;
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .02em;
  cursor: pointer;
  text-decoration: none;
}
.btn-block { width: 100%; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); }
.btn-secondary { background: var(--white); color: var(--navy); border-color: var(--navy); }
.btn-secondary:hover { background: #EEF2F6; }
.btn-ghost { background: var(--white); border-color: var(--line); color: var(--ink); }

.page-head { margin-bottom: 1.15rem; }
.eyebrow {
  margin: 0 0 .3rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .72rem;
  font-weight: 600;
  color: var(--muted);
}
.page-head h1 {
  margin: 0;
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: -.01em;
}
.lead {
  margin: .4rem 0 0;
  color: var(--muted);
  max-width: 40rem;
  font-size: .95rem;
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 1rem;
  align-items: start;
}

.panel-form,
.result-pane,
.admin-form fieldset,
.card-form {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1rem;
}

.form-block {
  display: grid;
  gap: .75rem;
  padding-bottom: .9rem;
  margin-bottom: .35rem;
  border-bottom: 1px solid var(--line);
}
.form-block:last-of-type { border-bottom: 0; margin-bottom: 0; }
.form-block-head h2 {
  margin: 0;
  font-size: .95rem;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.form-block-head p {
  margin: .2rem 0 0;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 400;
}
.hint { color: var(--muted); font-size: .78rem; font-weight: 400; }

.nss-contracts { display: grid; gap: .55rem; }
.nss-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: .5rem;
  align-items: center;
  padding: .55rem .6rem;
  border: 1px solid var(--line);
  background: #FAFAFA;
}
.nss-row-label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--navy);
}
.nss-checks { display: flex; flex-wrap: wrap; gap: .55rem .85rem; }
.check {
  display: inline-flex !important;
  grid-template-columns: none !important;
  align-items: center;
  gap: .35rem !important;
  font-size: .84rem;
  font-weight: 500;
  cursor: pointer;
}
.check input { width: auto; }

.result-pane { min-height: 320px; }
.empty-result {
  min-height: 280px;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: .95rem;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .65rem;
  margin-bottom: .85rem;
}
.kpi-row-4 {
  grid-template-columns: repeat(4, 1fr);
}
.kpi {
  border: 1px solid var(--line);
  padding: .75rem .8rem;
  background: #FAFAFA;
}
.kpi span {
  display: block;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: .25rem;
}
.kpi strong {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
}
.kpi-balance.is-positive { border-color: #A7F3D0; background: #ECFDF5; }
.kpi-balance.is-positive strong { color: var(--green); }
.kpi-balance.is-negative { border-color: #FECACA; background: #FEF2F2; }
.kpi-balance.is-negative strong { color: var(--red); }

.result-meta {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: .86rem;
}

.split-lists {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.split-lists h3,
.subhead {
  margin: 0 0 .45rem;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--navy);
}
.subhead { margin-top: .9rem; color: var(--muted); }

.money-list { list-style: none; margin: 0; padding: 0; }
.money-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .5rem 0;
  border-bottom: 1px solid var(--line);
  font-size: .9rem;
}
.money-list li:last-child { border-bottom: 0; }
.money-list strong { font-family: var(--mono); font-weight: 500; }
.money-list.compact li { font-size: .84rem; padding: .4rem 0; }

.charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.1rem 0;
  align-items: stretch;
}
.chart-box {
  position: relative;
  width: 100%;
  max-width: 100%;
  height: 240px;
  overflow: hidden;
}
.chart-box canvas {
  max-width: 100% !important;
  max-height: 240px !important;
}
.pdf-form { margin-top: .25rem; }

.admin-form { display: grid; gap: 1rem; background: transparent; border: 0; padding: 0; }
.admin-form fieldset { margin: 0; }
.admin-form legend {
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 0 .2rem;
  color: var(--navy);
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: .75rem;
}
.form-actions { display: flex; flex-wrap: wrap; gap: .65rem; }
.admin-reset {
  margin-top: 1.25rem;
}
.admin-reset fieldset {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1rem;
  margin: 0;
}
.admin-reset legend {
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 0 .2rem;
  color: var(--navy);
}

@media (max-width: 900px) {
  .panel-grid,
  .split-lists,
  .charts,
  .kpi-row,
  .kpi-row-4 { grid-template-columns: 1fr; }
  .site-header { flex-direction: column; align-items: flex-start; }
  .nss-row { grid-template-columns: 1fr; }
}