:root {
  --navy-950: #05080f;
  --navy-900: #060c1a;
  --navy-800: #0a1628;
  --navy-700: #0f1d38;
  --navy-600: #16274a;
  --gold: #d4af37;
  --gold-soft: rgba(212,175,55,0.14);
  --gold-line: rgba(212,175,55,0.35);
  --text-hi: #f5eecb;
  --text-mid: #d8dcea;
  --text-dim: #9fa6bd;
  --green: #4fbf7a;
  --red: #d9736b;
  --amber: #e0b040;
  --radius: 10px;
  --sidebar-w: 232px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; height: 100%;
  background: var(--navy-900);
  color: var(--text-mid);
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: Georgia, 'Times New Roman', serif; color: var(--text-hi); font-weight: 400; margin: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
::selection { background: var(--gold-soft); }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--navy-600); border-radius: 8px; }

/* ---------------- app shell ---------------- */
#app {
  display: flex;
  min-height: 100%;
}

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--navy-800), var(--navy-950));
  border-right: 1px solid var(--gold-line);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 40;
  transition: transform 0.25s ease;
}
.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 16px 14px 16px;
  border-bottom: 1px solid rgba(212,175,55,0.18);
}
.sidebar-brand img { width: 34px; height: 34px; object-fit: contain; }
.sidebar-brand .b-title { font-size: 13px; letter-spacing: 1px; color: var(--text-hi); line-height: 1.2; }
.sidebar-brand .b-sub { font-size: 9.5px; letter-spacing: 1.5px; color: var(--gold); text-transform: uppercase; }

.nav-scroll { flex: 1; overflow-y: auto; padding: 10px 0; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 18px; margin: 2px 8px;
  border-radius: 8px; font-size: 13.5px; color: var(--text-dim);
  cursor: pointer; border-left: 2px solid transparent;
}
.nav-item svg { width: 17px; height: 17px; flex-shrink: 0; opacity: 0.85; }
.nav-item:hover { background: rgba(212,175,55,0.06); color: var(--text-mid); }
.nav-item.active { background: rgba(212,175,55,0.1); color: var(--text-hi); border-left: 2px solid var(--gold); }
.nav-section-label {
  font-size: 9.5px; letter-spacing: 1.5px; text-transform: uppercase; color: #626a85;
  padding: 14px 20px 6px 20px;
}
.sidebar-foot {
  padding: 12px 16px; border-top: 1px solid rgba(212,175,55,0.15);
  font-size: 10.5px; color: var(--text-dim);
}

.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; background: rgba(6,12,26,0.86); backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(212,175,55,0.15);
}
.topbar h1 { font-size: 19px; }
.topbar .crumb { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--gold); margin-bottom: 3px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.menu-btn { display: none; background: none; border: 1px solid var(--gold-line); color: var(--text-hi); border-radius: 8px; padding: 7px 10px; }

.view { padding: 20px 22px 90px 22px; max-width: 1200px; width: 100%; }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 16px; border-radius: 8px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--gold-line); color: var(--text-hi); background: rgba(212,175,55,0.07);
  cursor: pointer; white-space: nowrap;
}
.btn:hover { background: rgba(212,175,55,0.14); }
.btn-primary { background: linear-gradient(180deg, #e3c665, var(--gold)); color: #1a1200; border-color: transparent; }
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; border-color: rgba(159,166,189,0.3); color: var(--text-dim); }
.btn-danger { border-color: rgba(217,115,107,0.5); color: #f0b3ae; }
.btn-sm { padding: 6px 11px; font-size: 12px; }
.icon-btn { background: none; border: none; color: var(--text-dim); cursor: pointer; padding: 5px; border-radius: 6px; }
.icon-btn:hover { background: rgba(255,255,255,0.06); color: var(--text-hi); }

/* ---------------- cards / grid ---------------- */
.grid { display: grid; gap: 14px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2,1fr);} }
@media (max-width: 620px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: linear-gradient(180deg, rgba(212,175,55,0.05), rgba(255,255,255,0.01));
  border: 1px solid rgba(212,175,55,0.22);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.card h3 { font-family: Helvetica, Arial, sans-serif; font-size: 12px; letter-spacing: 0.5px; color: var(--text-dim); text-transform: uppercase; margin-bottom: 8px; }
.stat-value { font-family: Georgia, serif; font-size: 26px; color: var(--text-hi); }
.stat-sub { font-size: 11.5px; color: var(--text-dim); margin-top: 4px; }
.stat-sub.up { color: var(--green); }
.stat-sub.down { color: var(--red); }

.panel { background: var(--navy-800); border: 1px solid rgba(212,175,55,0.18); border-radius: var(--radius); padding: 18px; }
.panel-title { font-size: 15px; color: var(--text-hi); margin-bottom: 12px; display:flex; align-items:center; justify-content:space-between; }

/* ---------------- tables ---------------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid rgba(212,175,55,0.18); }
table.dt { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 600px; }
table.dt th {
  text-align: left; padding: 10px 14px; background: rgba(212,175,55,0.06);
  color: var(--gold); font-size: 11px; letter-spacing: 0.5px; text-transform: uppercase;
  border-bottom: 1px solid rgba(212,175,55,0.2); position: sticky; top: 0;
}
table.dt td { padding: 10px 14px; border-bottom: 1px solid rgba(255,255,255,0.05); color: var(--text-mid); }
table.dt tr:last-child td { border-bottom: none; }
table.dt tr:hover td { background: rgba(255,255,255,0.02); }
.pill-badge {
  display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 10.5px; font-weight: 600; letter-spacing: 0.3px;
}
.pill-paid { background: rgba(79,191,122,0.15); color: var(--green); }
.pill-unpaid { background: rgba(217,115,107,0.15); color: var(--red); }
.pill-partial { background: rgba(224,176,64,0.15); color: var(--amber); }
.pill-neutral { background: rgba(159,166,189,0.15); color: var(--text-dim); }

/* ---------------- forms / modal ---------------- */
.field { margin-bottom: 12px; }
.field label { display:block; font-size: 11.5px; letter-spacing: 0.4px; text-transform: uppercase; color: var(--text-dim); margin-bottom: 5px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 9px 11px; border-radius: 7px; border: 1px solid rgba(212,175,55,0.3);
  background: var(--navy-950); color: var(--text-hi); font-size: 13.5px; font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--gold); }
.field-row { display: flex; gap: 10px; }
.field-row > .field { flex: 1; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(2,5,12,0.65); backdrop-filter: blur(2px);
  display: flex; align-items: center; justify-content: center; z-index: 100; padding: 16px;
}
.modal {
  background: var(--navy-800); border: 1px solid var(--gold-line); border-radius: 14px;
  width: 100%; max-width: 480px; max-height: 88vh; overflow-y: auto;
  padding: 22px 22px 18px 22px; box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal h2 { font-size: 18px; margin-bottom: 14px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

/* ---------------- misc ---------------- */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-dim); }
.badge-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.toast-wrap { position: fixed; bottom: 18px; right: 18px; z-index: 200; display:flex; flex-direction:column; gap:8px; }
.toast {
  background: var(--navy-800); border: 1px solid var(--gold-line); color: var(--text-hi);
  padding: 11px 16px; border-radius: 9px; font-size: 13px; box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  animation: toastIn 0.2s ease;
}
@keyframes toastIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.notif-item { display:flex; gap:10px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.notif-item:last-child { border-bottom: none; }
.notif-icon { width: 30px; height:30px; border-radius: 50%; background: rgba(212,175,55,0.12); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.notif-text { font-size: 12.8px; color: var(--text-mid); }
.notif-time { font-size: 10.5px; color: var(--text-dim); margin-top: 2px;}

.tabs { display:flex; gap: 4px; border-bottom: 1px solid rgba(212,175,55,0.2); margin-bottom: 16px; flex-wrap: wrap; }
.tab-btn { padding: 9px 14px; font-size: 12.5px; color: var(--text-dim); border-bottom: 2px solid transparent; cursor:pointer; }
.tab-btn.active { color: var(--gold); border-bottom-color: var(--gold); }

.flow-row { display:flex; align-items:center; gap:8px; flex-wrap: wrap; }
.flow-node { border:1px solid var(--gold-line); background: rgba(212,175,55,0.06); padding: 7px 12px; border-radius: 7px; font-size: 12px; color: var(--text-hi); }
.flow-arrow { color: var(--gold); font-size: 13px; }

.section-title { font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--gold); margin: 22px 0 10px 0; }
.muted { color: var(--text-dim); font-size: 12.5px; }

.chart-box { position: relative; height: 240px; }

.install-banner {
  display:none; align-items:center; justify-content:space-between; gap: 12px;
  background: linear-gradient(90deg, rgba(212,175,55,0.16), rgba(212,175,55,0.03));
  border: 1px solid var(--gold-line); border-radius: 10px; padding: 10px 16px; margin-bottom: 16px;
  font-size: 12.5px;
}

/* ---------------- auth gate ---------------- */
#auth-gate {
  position: fixed; inset: 0; z-index: 500;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 30% 20%, var(--navy-700) 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  padding: 20px;
}
.login-card {
  width: 100%; max-width: 360px; text-align: center;
  background: linear-gradient(180deg, rgba(212,175,55,0.06), rgba(255,255,255,0.01));
  border: 1px solid var(--gold-line); border-radius: 14px;
  padding: 34px 26px 28px 26px;
}
.login-card img { width: 62px; height: 62px; object-fit: contain; margin-bottom: 10px; }
.login-card h1 { font-size: 26px; margin-bottom: 4px; }
.login-sub { font-size: 10.5px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--gold); }
.user-chip {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 11.5px; color: var(--text-dim); gap: 8px;
}
.user-chip button { background: none; border: none; color: var(--gold); font-size: 11px; cursor: pointer; padding: 0; }

/* ---------------- bottom nav (mobile) ---------------- */
.bottom-nav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  background: var(--navy-950); border-top: 1px solid rgba(212,175,55,0.25);
  padding: 6px 4px calc(env(safe-area-inset-bottom) + 4px) 4px;
  justify-content: space-around;
}
.bottom-nav .bn-item { display:flex; flex-direction:column; align-items:center; gap:2px; font-size: 9.5px; color: var(--text-dim); padding: 6px 4px; flex:1; }
.bottom-nav .bn-item svg { width:18px; height:18px; }
.bottom-nav .bn-item.active { color: var(--gold); }

/* ---------------- responsive ---------------- */
@media (max-width: 880px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .menu-btn { display: inline-flex; }
  .bottom-nav { display: flex; }
  .view { padding-bottom: 84px; }
  .sidebar-overlay { position: fixed; inset:0; background: rgba(0,0,0,0.5); z-index: 39; }
}