/* ---------------------------------------------------------------
   Design tokens
--------------------------------------------------------------- */
[hidden] { display: none !important; }

:root {
  --paper: #F3F5F1;
  --surface: #FFFFFF;
  --ink: #2B3A34;
  --ink-soft: #5B6B64;
  --ledger: #3F6659;
  --ledger-dark: #2F4D43;
  --accent: #B8874F;
  --good: #4C7A63;
  --warn: #B4533F;
  --line: #DCE3DD;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ledger-dark);
  letter-spacing: -0.01em;
}

/* ---------------------------------------------------------------
   Ledger rule -- the signature divider element
--------------------------------------------------------------- */
.ledger-rule {
  height: 1px;
  background-image: repeating-linear-gradient(
    to right, var(--line) 0, var(--line) 4px, transparent 4px, transparent 9px
  );
  margin: 1.25rem 0;
  border: none;
}

/* ---------------------------------------------------------------
   Login screen
--------------------------------------------------------------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 2.5rem 2.25rem;
  max-width: 340px;
  width: 100%;
  box-shadow: 0 1px 3px rgba(43, 58, 52, 0.08), 0 8px 24px rgba(43, 58, 52, 0.06);
  text-align: center;
}

.login-card .wordmark {
  font-size: 2rem;
  margin: 0 0 0.25rem;
}

.login-sub {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 0 0 1.75rem;
}

#login-form { text-align: left; }

#login-form label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

#login-form input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-body);
  margin-bottom: 1.25rem;
}

#login-form input:focus {
  outline: 2px solid var(--ledger);
  outline-offset: 1px;
  border-color: var(--ledger);
}

#login-form button {
  width: 100%;
  padding: 0.7rem;
  background: var(--ledger);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  transition: background 0.15s ease;
}

#login-form button:hover { background: var(--ledger-dark); }
#login-form button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.login-error {
  color: var(--warn);
  font-size: 0.85rem;
  margin: 0.9rem 0 0;
}

/* ---------------------------------------------------------------
   App shell
--------------------------------------------------------------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--ledger-dark);
  color: white;
  padding: 1.75rem 1.25rem;
  display: flex;
  flex-direction: column;
}

.sidebar .wordmark.small {
  color: white;
  font-size: 1.4rem;
  margin: 0 0 2rem;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
}

.nav-link {
  display: block;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.92rem;
  padding: 0.6rem 0.7rem;
  border-radius: 7px;
  margin-bottom: 0.15rem;
  transition: background 0.12s ease, color 0.12s ease;
}

.nav-link:hover { background: rgba(255,255,255,0.08); color: white; }
.nav-link.active { background: rgba(255,255,255,0.14); color: white; font-weight: 500; }
.nav-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.logout-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.75);
  padding: 0.55rem;
  border-radius: 7px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
}

.logout-btn:hover { color: white; border-color: rgba(255,255,255,0.5); }

.main {
  flex: 1;
  padding: 2.25rem 2.5rem;
  max-width: 1100px;
}

.view-container h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 0 0.2rem;
  color: var(--ledger-dark);
}

.view-sub {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}

/* ---------------------------------------------------------------
   Summary cards (dashboard)
--------------------------------------------------------------- */
.card-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.summary-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: 0 1px 2px rgba(43,58,52,0.06);
}

.summary-card .label {
  font-size: 0.78rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 0.4rem;
}

.summary-card .value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
}

.summary-card.leftover .value.positive { color: var(--good); }
.summary-card.leftover .value.negative { color: var(--warn); }

/* ---------------------------------------------------------------
   Ledger table (breakdown, accounts, transactions)
--------------------------------------------------------------- */
.ledger-table {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 0.5rem 1.5rem;
  box-shadow: 0 1px 2px rgba(43,58,52,0.06);
}

.ledger-row {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 1.5rem;
  align-items: center;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.ledger-row:last-child { border-bottom: none; }

.ledger-row .name { font-weight: 500; }
.ledger-row .type-tag {
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.ledger-row .amount {
  font-family: var(--font-mono);
  text-align: right;
  min-width: 90px;
}

.ledger-row .amount.over { color: var(--warn); }
.ledger-row .amount.under { color: var(--good); }

.section-heading {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ledger-dark);
  margin: 0 0 0.75rem;
}

.empty-state {
  color: var(--ink-soft);
  font-size: 0.9rem;
  padding: 1.5rem 0;
  text-align: center;
}

/* ---------------------------------------------------------------
   Responsive
--------------------------------------------------------------- */
@media (max-width: 800px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    width: 100%;
    flex-direction: row;
    align-items: center;
    padding: 0.85rem 1rem;
    overflow-x: auto;
  }
  .sidebar .wordmark.small { margin: 0 1rem 0 0; }
  .nav-list { display: flex; flex: 1; gap: 0.25rem; }
  .logout-btn { flex-shrink: 0; }
  .main { padding: 1.25rem 1.1rem; }
  .card-row { grid-template-columns: 1fr 1fr; }
  .ledger-row { grid-template-columns: 1fr auto; row-gap: 0.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}