:root {
  --bg: #f3f1ec;
  --surface: #fffcf7;
  --ink: #1c2430;
  --muted: #5d6b7c;
  --line: #d7d2c8;
  --accent: #0f6a6a;
  --accent-soft: #d9efef;
  --danger: #9b2c2c;
  --ok: #1f6b3a;
  --shadow: 0 10px 30px rgba(28, 36, 48, 0.06);
  --radius: 14px;
  --font: "Segoe UI", "PT Root UI", "Manrope", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 106, 106, 0.08), transparent 28%),
    linear-gradient(180deg, #ebe7df 0%, var(--bg) 40%, #efece6 100%);
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  width: min(980px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.brand strong { font-size: 1.25rem; letter-spacing: -0.02em; }
.brand span { color: var(--muted); font-size: 0.9rem; }
.brand .sync-meta { font-size: 0.8rem; color: var(--muted); }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.nav a, .nav button.linkish {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
}
.nav a.active, .nav a:hover, .nav button.linkish:hover {
  background: var(--accent-soft);
  border-color: #b7dcdc;
  text-decoration: none;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  margin-bottom: 1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1rem;
}
@media (max-width: 820px) {
  .grid-2 { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: flex-start; }
}

h1, h2, h3 { margin: 0 0 0.75rem; letter-spacing: -0.02em; }
.muted { color: var(--muted); }
.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1 1 140px;
}
.field label {
  font-size: 0.82rem;
  color: var(--muted);
}
input, select, textarea, button.btn {
  font: inherit;
  border-radius: 10px;
  border: 1px solid var(--line);
  padding: 0.65rem 0.75rem;
  background: #fff;
  color: var(--ink);
}
textarea { min-height: 90px; resize: vertical; }
button.btn, a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
}
button.btn:hover, a.btn:hover { filter: brightness(1.05); text-decoration: none; }
button.btn.secondary, a.btn.secondary {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}
button.btn.danger {
  background: var(--danger);
}

.flash {
  padding: 0.8rem 1rem;
  border-radius: 12px;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  background: #fff;
}
.flash.error {
  border-color: #e7b6b6;
  background: #fff5f5;
  color: var(--danger);
}
.flash.info {
  border-color: #b7dcdc;
  background: var(--accent-soft);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
@media (max-width: 640px) {
  .stats { grid-template-columns: 1fr; }
}
.stat {
  padding: 0.9rem;
  border-radius: 12px;
  background: linear-gradient(180deg, #fff, #f7f4ee);
  border: 1px solid var(--line);
}
.stat .label { color: var(--muted); font-size: 0.82rem; }
.stat .value { font-size: 1.35rem; font-weight: 700; margin-top: 0.2rem; }

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 0.7rem 0.45rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.amount { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
.amount.income, .value.income { color: var(--ok); }
.amount.expense, .value.expense { color: var(--danger); }
.pill.kind-income { background: #e5f6ea; color: var(--ok); }
.pill.kind-expense { background: #f8eaea; color: var(--danger); }
.pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: #eef3f3;
  color: var(--muted);
  font-size: 0.78rem;
}
.actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.actions form { margin: 0; }

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.login-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1.5rem;
}
.login-card h1 {
  font-size: 1.7rem;
  margin-bottom: 0.25rem;
}
.stack { display: grid; gap: 0.85rem; }
.full { width: 100%; }
.hint {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.cat-list {
  display: grid;
  gap: 0.55rem;
}
.cat-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}
.cat-row:last-child { border-bottom: 0; }

/* Mobile */
@media (max-width: 820px) {
  .wrap {
    width: calc(100% - 1.25rem);
    padding: 0.85rem 0 2.5rem;
    padding-left: max(0, env(safe-area-inset-left));
    padding-right: max(0, env(safe-area-inset-right));
    padding-bottom: calc(2.5rem + env(safe-area-inset-bottom));
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.4rem;
  }
  .nav a,
  .nav button.linkish,
  .nav form {
    width: 100%;
  }
  .nav a,
  .nav button.linkish {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.55rem 0.4rem;
    font-size: 0.92rem;
    border-radius: 12px;
  }

  .grid-2 { grid-template-columns: 1fr; }

  input, select, textarea, button.btn, a.btn {
    font-size: 16px; /* avoid iOS zoom on focus */
    min-height: 44px;
  }

  .field { flex: 1 1 100%; }

  .btn.full,
  form.stack > .btn {
    width: 100%;
  }

  .actions {
    width: 100%;
  }
  .actions .btn,
  .actions button.btn {
    flex: 1 1 auto;
  }
}

@media (max-width: 700px) {
  .table-wrap { overflow: visible; }

  table, thead, tbody, th, td, tr {
    display: block;
    width: 100%;
  }

  thead { display: none; }

  tbody tr {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.75rem 0.85rem;
    margin-bottom: 0.75rem;
  }

  tbody tr.empty-row {
    background: transparent;
    border: none;
    padding: 0;
  }

  tbody td {
    border: none;
    padding: 0.35rem 0;
    display: grid;
    grid-template-columns: 6.5rem 1fr;
    gap: 0.5rem;
    align-items: start;
  }

  tbody td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
    padding-top: 0.15rem;
  }

  tbody td[data-label=""] {
    display: block;
    margin-top: 0.45rem;
    padding-top: 0.55rem;
    border-top: 1px solid var(--line);
  }

  tbody td[data-label=""]::before {
    content: none;
  }

  .amount { font-size: 1.05rem; }
}

@media (max-width: 640px) {
  .stats { grid-template-columns: 1fr; }
  .stat .value { font-size: 1.45rem; }
  .login-card { padding: 1.15rem; border-radius: 16px; }
}