@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --bg: #F6F3EC;
  --bg-alt: #EFEADD;
  --ink: #1C2B22;
  --ink-soft: #55604F;
  --card: #FFFFFF;
  --border: rgba(28, 43, 34, 0.14);
  --border-strong: rgba(28, 43, 34, 0.28);
  --green: #2F6F4F;
  --green-soft: #E4EEE6;
  --gold: #C98A2E;
  --gold-soft: #FAEFD9;
  --rust: #B5482E;
  --rust-soft: #F7E4DD;
  --shadow: 0 1px 2px rgba(28,43,34,0.04), 0 6px 20px rgba(28,43,34,0.06);
  --radius: 14px;
  --radius-sm: 9px;
  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="dark"] {
  --bg: #131C16;
  --bg-alt: #182219;
  --ink: #ECE8DC;
  --ink-soft: #A7B0A0;
  --card: #1B2620;
  --border: rgba(236, 232, 220, 0.12);
  --border-strong: rgba(236, 232, 220, 0.24);
  --green: #5FA382;
  --green-soft: #203029;
  --gold: #E0A33D;
  --gold-soft: #2E2716;
  --rust: #E07456;
  --rust-soft: #2E1E17;
  --shadow: 0 1px 2px rgba(0,0,0,0.2), 0 8px 24px rgba(0,0,0,0.3);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background .2s ease, color .2s ease;
}
h1, h2, h3, .display { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }
.mono, .amount, input[type="number"] { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
a { color: inherit; }
button { font-family: var(--font-body); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

/* ---------- App shell ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: 232px;
  flex-shrink: 0;
  border-right: 1px dashed var(--border-strong);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  padding: 4px 12px 20px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.brand small { font-family: var(--font-body); font-size: 11px; font-weight: 500; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .08em; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 14.5px;
  font-weight: 500;
  transition: background .15s ease, color .15s ease;
}
.nav-link .ic { font-size: 17px; width: 20px; text-align: center; }
.nav-link:hover { background: var(--bg-alt); color: var(--ink); }
.nav-link.active { background: var(--green-soft); color: var(--green); font-weight: 600; }
.sidebar-footer { margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--border); }

.main {
  flex: 1;
  min-width: 0;
  padding: 28px 32px 100px;
  max-width: 1160px;
}
.page-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-header h1 { font-size: 26px; margin: 0 0 4px; }
.page-header p { margin: 0; color: var(--ink-soft); font-size: 14.5px; }

/* Mobile bottom nav */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
  z-index: 40;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.06);
}
.bottom-nav-inner { display: flex; justify-content: space-around; }
.bottom-nav a {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  text-decoration: none; color: var(--ink-soft); font-size: 10.5px; font-weight: 600;
  padding: 4px 8px; border-radius: 10px;
}
.bottom-nav a.active { color: var(--green); }
.bottom-nav a .ic { font-size: 19px; }

@media (max-width: 860px) {
  .sidebar { display: none; }
  .main { padding: 18px 16px 92px; max-width: 100%; }
  .bottom-nav { display: block; }
  .page-header h1 { font-size: 22px; }
}

/* ---------- Cards & grids ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.card-flush { padding: 0; overflow: hidden; }
.grid { display: grid; gap: 16px; }
.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: 900px) { .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.stat-card { display: flex; flex-direction: column; gap: 6px; }
.stat-label { font-size: 12.5px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
.stat-value { font-family: var(--font-mono); font-size: 27px; font-weight: 600; letter-spacing: -0.01em; }
.stat-sub { font-size: 12.5px; color: var(--ink-soft); }
.stat-value.positive { color: var(--green); }
.stat-value.negative { color: var(--rust); }

/* Receipt-style dashed divider */
.receipt-divider {
  border: none;
  border-top: 1px dashed var(--border-strong);
  margin: 16px 0;
}

/* ---------- Ledger progress bars (signature element) ---------- */
.ledger-row { padding: 12px 0; border-bottom: 1px dashed var(--border); }
.ledger-row:last-child { border-bottom: none; }
.ledger-row-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 7px; gap: 8px; }
.ledger-row-name { display: flex; align-items: center; gap: 8px; font-weight: 500; font-size: 14.5px; }
.ledger-row-figures { font-family: var(--font-mono); font-size: 13px; color: var(--ink-soft); white-space: nowrap; }
.ledger-track {
  height: 9px;
  border-radius: 5px;
  background: var(--bg-alt);
  overflow: hidden;
  position: relative;
}
.ledger-fill { height: 100%; border-radius: 5px; transition: width .4s ease; }
.ledger-fill.ok { background: var(--green); }
.ledger-fill.warn { background: var(--gold); }
.ledger-fill.over { background: var(--rust); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border-radius: 10px; border: 1px solid transparent; cursor: pointer;
  font-weight: 600; font-size: 14px; padding: 10px 16px;
  transition: transform .08s ease, background .15s ease, border-color .15s ease;
  text-decoration: none;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: #285e42; }
.btn-secondary { background: var(--card); color: var(--ink); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-alt); }
.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { background: var(--bg-alt); color: var(--ink); }
.btn-danger { background: var(--rust-soft); color: var(--rust); }
.btn-danger:hover { background: var(--rust); color: #fff; }
.btn-sm { padding: 6px 11px; font-size: 12.5px; border-radius: 8px; }
.btn-block { width: 100%; }
.fab {
  position: fixed; right: 20px; bottom: 84px; z-index: 41;
  width: 54px; height: 54px; border-radius: 50%; border: none;
  background: var(--green); color: #fff; font-size: 26px; cursor: pointer;
  box-shadow: 0 8px 20px rgba(47,111,79,0.35); display: flex; align-items: center; justify-content: center;
}
@media (min-width: 861px) { .fab { display: none; } }

/* ---------- Forms ---------- */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--ink-soft); }
input, select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 9px; border: 1px solid var(--border-strong);
  background: var(--bg); color: var(--ink); font-size: 14.5px; font-family: var(--font-body);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }
.field { margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .field-row { grid-template-columns: 1fr; } }
.pill-toggle { display: flex; border: 1px solid var(--border-strong); border-radius: 10px; overflow: hidden; }
.pill-toggle button {
  flex: 1; padding: 9px; border: none; background: var(--card); color: var(--ink-soft);
  font-weight: 600; font-size: 13.5px; cursor: pointer;
}
.pill-toggle button.active.income { background: var(--green-soft); color: var(--green); }
.pill-toggle button.active.expense { background: var(--rust-soft); color: var(--rust); }

/* ---------- Auth pages ---------- */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px; background: radial-gradient(circle at 20% 10%, var(--bg-alt), var(--bg) 60%);
}
.auth-card { width: 100%; max-width: 380px; }
.auth-logo { text-align: center; margin-bottom: 22px; }
.auth-logo .mark { font-size: 32px; }
.auth-logo h1 { margin: 6px 0 0; font-size: 22px; }
.auth-logo p { margin: 4px 0 0; color: var(--ink-soft); font-size: 13.5px; }
.auth-switch { text-align: center; margin-top: 16px; font-size: 13.5px; color: var(--ink-soft); }
.auth-switch a { color: var(--green); font-weight: 600; text-decoration: none; }
.error-banner {
  background: var(--rust-soft); color: var(--rust); padding: 10px 12px; border-radius: 9px;
  font-size: 13.5px; margin-bottom: 14px; display: none;
}
.error-banner.show { display: block; }

/* ---------- Misc ---------- */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.badge.income { background: var(--green-soft); color: var(--green); }
.badge.expense { background: var(--rust-soft); color: var(--rust); }
.empty-state { text-align: center; padding: 48px 20px; color: var(--ink-soft); }
.empty-state .ic { font-size: 34px; margin-bottom: 10px; }
.tx-list-row {
  display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--border);
}
.tx-list-row:last-child { border-bottom: none; }
.tx-icon { width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 17px; flex-shrink: 0; }
.tx-info { flex: 1; min-width: 0; }
.tx-info .name { font-weight: 600; font-size: 14px; }
.tx-info .meta { font-size: 12px; color: var(--ink-soft); }
.tx-amount { font-family: var(--font-mono); font-weight: 600; font-size: 14.5px; white-space: nowrap; }
.tx-amount.income { color: var(--green); }
.tx-amount.expense { color: var(--ink); }
.tx-actions { display: flex; gap: 4px; }
.icon-btn { background: none; border: none; cursor: pointer; color: var(--ink-soft); font-size: 15px; padding: 6px; border-radius: 7px; }
.icon-btn:hover { background: var(--bg-alt); color: var(--rust); }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(20,28,22,0.45); display: none;
  align-items: flex-end; justify-content: center; z-index: 60; backdrop-filter: blur(2px);
}
.modal-backdrop.show { display: flex; }
.modal {
  background: var(--card); border-radius: 18px 18px 0 0; padding: 22px; width: 100%; max-width: 480px;
  max-height: 88vh; overflow-y: auto; box-shadow: 0 -12px 40px rgba(0,0,0,0.2);
}
@media (min-width: 640px) {
  .modal-backdrop { align-items: center; }
  .modal { border-radius: 16px; }
}
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.modal-head h3 { margin: 0; font-size: 18px; }

.toast-stack { position: fixed; top: 16px; right: 16px; z-index: 80; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--ink); color: var(--bg); padding: 11px 16px; border-radius: 10px; font-size: 13.5px; box-shadow: var(--shadow); animation: toast-in .2s ease; }
[data-theme="dark"] .toast { background: var(--green); color: #fff; }
@keyframes toast-in { from { opacity:0; transform: translateY(-6px);} to {opacity:1; transform: translateY(0);} }

.theme-toggle { background: none; border: 1px solid var(--border-strong); border-radius: 9px; padding: 8px 10px; cursor: pointer; color: var(--ink); }

.tools-tab-bar { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.tools-tab { padding: 9px 15px; border-radius: 999px; border: 1px solid var(--border-strong); background: var(--card); cursor: pointer; font-weight: 600; font-size: 13.5px; color: var(--ink-soft); }
.tools-tab.active { background: var(--green); border-color: var(--green); color: #fff; }
.result-hero { text-align: center; padding: 20px 0; }
.result-hero .num { font-family: var(--font-mono); font-size: 40px; font-weight: 700; color: var(--green); }
.result-hero .lbl { font-size: 13px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; margin-top: 4px; }
.note-box { background: var(--gold-soft); border: 1px solid rgba(201,138,46,0.3); color: #6b4a15; border-radius: 10px; padding: 12px 14px; font-size: 13px; line-height: 1.5; }
[data-theme="dark"] .note-box { color: var(--gold); }
.breakdown-line { display: flex; justify-content: space-between; padding: 7px 0; font-size: 13.5px; border-bottom: 1px dashed var(--border); }
.breakdown-line:last-child { border-bottom: none; }
.breakdown-line .lbl { color: var(--ink-soft); }
.breakdown-line .val { font-family: var(--font-mono); font-weight: 600; }

.skeleton { background: linear-gradient(90deg, var(--bg-alt) 25%, var(--border) 37%, var(--bg-alt) 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; border-radius: 8px; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }