:root {
  --navy: #0b1f33;
  --navy-2: #123047;
  --blue: #1a5f9e;
  --teal: #1db8a6;
  --teal-2: #14c9b5;
  --teal-dim: rgba(29, 184, 166, 0.16);
  --bg: #eef4f8;
  --card: #ffffff;
  --text: #123047;
  --muted: #5b7388;
  --line: #d5e2ec;
  --danger: #c4475a;
  --ok: #1a9b6c;
  --sidebar: 260px;
  --shadow: 0 10px 30px rgba(11, 31, 51, 0.08);
  --radius: 14px;
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
}

a { color: var(--blue); }
img { max-width: 100%; }

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(29, 184, 166, 0.22), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(26, 95, 158, 0.35), transparent 42%),
    var(--navy);
}

.login-card {
  width: min(420px, calc(100vw - 32px));
  background: var(--card);
  border-radius: 22px;
  padding: 36px 32px 28px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  text-align: center;
}

.login-card .logo {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: block;
}

.login-card h1 {
  margin: 0;
  font-size: 1.7rem;
  letter-spacing: 0.01em;
}
.login-card p.tag {
  color: var(--muted);
  margin: 6px 0 22px;
}

label {
  display: block;
  text-align: left;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 12px 0 6px;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--teal);
  border-color: var(--teal);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: #fff;
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-danger { background: var(--danger); color: #fff; }
.btn-wide { width: 100%; margin-top: 18px; }
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.month-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.month-filter .month-label {
  min-width: 10rem;
  text-align: center;
}
.month-filter .btn-primary { color: #fff; }
tr.ie-section td {
  background: #f3f7fa;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.78rem;
  color: var(--muted);
}
tr.ie-total td { font-weight: 650; }
tr.ie-net td {
  font-weight: 700;
  border-top: 2px solid var(--navy);
}
.amt-surplus { color: var(--ok); }
.amt-deficit { color: var(--danger); }

.flash {
  display: none;
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #fde8ec;
  color: var(--danger);
  text-align: left;
}
.flash.show { display: block; }

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar) 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, var(--navy) 0%, #0e2a44 100%);
  color: #d7e6f2;
  padding: 22px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 10px 18px;
}
.brand img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
}
.brand strong {
  display: block;
  color: #fff;
  font-size: 1.05rem;
}
.brand span {
  color: var(--teal-2);
  font-size: 0.78rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}
.nav-btn:hover { background: rgba(255,255,255,0.06); }
.nav-btn.active {
  background: var(--teal-dim);
  color: #fff;
  box-shadow: inset 3px 0 0 var(--teal);
}

.nav-section {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.nav-section.locked { opacity: 0.38; pointer-events: none; }
.nav-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7fa0b8;
  padding: 4px 12px 8px;
}

.sidebar-foot {
  margin-top: auto;
  padding: 12px 10px 4px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.user-chip { font-size: 0.9rem; margin-bottom: 10px; }
.user-chip b { color: #fff; }

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 16px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.topbar h2 { margin: 0; font-size: 1.25rem; }
.repo-pill {
  background: var(--teal-dim);
  color: var(--navy);
  border-radius: 999px;
  padding: 6px 12px;
  font-weight: 650;
  font-size: 0.88rem;
}
#view { padding: 24px 28px 48px; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 18px;
}
.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: end;
}
.row > * { flex: 1; min-width: 160px; }
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
tr:hover td { background: #f7fbfc; }
.empty { color: var(--muted); padding: 24px 8px; }

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge-draft { background: #eef2f6; color: var(--muted); }
.badge-posted { background: #e5f8f4; color: #0e7c6e; }
.badge-void { background: #fde8ec; color: var(--danger); }
.badge-disabled { background: #fde8ec; color: var(--danger); }
.badge-ok { background: #e5f8f4; color: #0e7c6e; }

.muted { color: var(--muted); }
.right { text-align: right; }
.clickable { cursor: pointer; }
.hidden { display: none !important; }
.notice {
  background: #e8f6ff;
  border-left: 4px solid var(--blue);
  padding: 12px 14px;
  border-radius: 8px;
  color: var(--navy-2);
}

@media (max-width: 860px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: sticky; top: 0; z-index: 5; }
}