:root {
  --bg: #0b0f19;
  --card: #141a2a;
  --card-2: #1c2436;
  --border: #2a3348;
  --text: #e6ebf5;
  --muted: #8b95ab;
  --accent: #3d7bff;
  --accent-2: #6ea1ff;
  --danger: #ff5d73;
  --ok: #2fd08b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.topbar {
  padding: 20px 20px 8px;
}

.topbar h1 {
  margin: 0;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--muted);
  font-size: 0.95rem;
}

main {
  max-width: 560px;
  margin: 0 auto;
  padding: 8px 16px 48px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.total-card {
  background: linear-gradient(135deg, #1b2b52, #16203a);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.total-label {
  color: var(--muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.total-value {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.total-sub {
  color: var(--muted);
  font-size: 0.9rem;
}

.ad-slot {
  border: 1px dashed var(--border);
  border-radius: 12px;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.upgrade-banner {
  background: var(--card);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.upgrade-banner p { margin: 0; }

.form-card, .list-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.form-card h2, .list-card h2 {
  margin: 0 0 14px;
  font-size: 1.1rem;
}

form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--muted);
}

form label:first-child { grid-column: 1 / -1; }

input, select {
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 1rem;
  width: 100%;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 11px 16px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { background: var(--accent-2); }

form .btn-primary { grid-column: 1 / -1; }

.sub-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sub-item {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.sub-item .info { flex: 1; min-width: 0; }

.sub-item .name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sub-item .meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.sub-item .amount {
  font-weight: 700;
  white-space: nowrap;
}

.sub-item .due {
  font-size: 0.8rem;
  white-space: nowrap;
}

.due.soon { color: var(--danger); }
.due.ok { color: var(--ok); }

.sub-item .del {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 6px;
}

.sub-item .del:hover { color: var(--danger); }

.empty { color: var(--muted); text-align: center; }

@media (max-width: 420px) {
  form { grid-template-columns: 1fr; }
  form label:first-child { grid-column: 1; }
  form .btn-primary { grid-column: 1; }
}

.userbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

.user-email {
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-card h2 { margin: 0; font-size: 1.2rem; }

.auth-card form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-secondary {
  background: var(--card-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover { border-color: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 0.85rem;
}

.btn-wide { width: 100%; }