:root {
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-border: #e2e7ee;
  --color-text: #1c2733;
  --color-muted: #6b7a8c;
  --color-primary: #1f3a5f;
  --color-primary-soft: #e8eef6;
  --color-positive: #1f8a5b;
  --color-positive-soft: #e3f4ec;
  --color-negative: #c0392b;
  --color-negative-soft: #fbeae8;
  --color-warning: #b9770e;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 35, 55, .06), 0 4px 14px rgba(20, 35, 55, .04);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: Inter, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p { margin: 0; }

/* Utilitaires Client-First */
.padding-global { padding-left: 1.25rem; padding-right: 1.25rem; }
.container-large { max-width: 1120px; margin: 0 auto; }
.main-wrapper { padding: 1.5rem 0 4rem; }
.heading-style-h4 { font-size: 1.4rem; font-weight: 650; }
.heading-style-h5 { font-size: 1.05rem; font-weight: 650; }
.text-size-small { font-size: .85rem; }
.text-color-muted { color: var(--color-muted); }
.text-color-positive { color: var(--color-positive); }
.text-color-negative { color: var(--color-negative); }
.text-align-right { text-align: right; }
.num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Navbar */
.navbar_component { background: var(--color-primary); color: #fff; position: sticky; top: 0; z-index: 10; }
.navbar_container { display: flex; align-items: center; gap: 1.5rem; height: 56px; max-width: 1120px; margin: 0 auto; }
.navbar_brand { font-weight: 700; letter-spacing: .2px; }
.navbar_menu { display: flex; gap: .25rem; flex: 1; }
.navbar_link { padding: .4rem .8rem; border-radius: 8px; color: #cdd9e8; }
.navbar_link:hover { background: rgba(255,255,255,.1); color: #fff; }
.navbar_link.is-active { background: rgba(255,255,255,.18); color: #fff; }

/* Boutons */
.button {
  border: 0; cursor: pointer; border-radius: 8px;
  background: var(--color-primary); color: #fff;
  padding: .55rem 1rem; font: inherit; font-weight: 600;
}
.button:hover { filter: brightness(1.12); }
.button.is-secondary { background: var(--color-primary-soft); color: var(--color-primary); }
.button.is-ghost { background: transparent; color: inherit; border: 1px solid rgba(255,255,255,.35); }
.button.is-small { padding: .3rem .7rem; font-size: .85rem; }
.button.is-icon { background: transparent; color: var(--color-muted); padding: .25rem .5rem; font-size: 1.1rem; }
.button.is-icon:hover { color: var(--color-negative); filter: none; }

/* Formulaires */
.form_label { display: flex; flex-direction: column; gap: .25rem; font-size: .8rem; color: var(--color-muted); font-weight: 600; }
.form_input, .form_select {
  font: inherit; color: var(--color-text); background: #fff;
  border: 1px solid var(--color-border); border-radius: 8px;
  padding: .45rem .6rem; min-width: 0; width: 100%;
}
.form_input:focus, .form_select:focus { outline: 2px solid var(--color-primary-soft); border-color: var(--color-primary); }
.form_input.is-cell { padding: .3rem .45rem; border-color: transparent; background: transparent; }
.form_input.is-cell:hover { border-color: var(--color-border); background: #fff; }
.form_row { display: grid; gap: .75rem; align-items: end; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
.form_checkbox { width: 18px; height: 18px; accent-color: var(--color-positive); cursor: pointer; }

/* Cartes & sections */
.card_component { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.25rem; }
.section_header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.stack { display: flex; flex-direction: column; gap: 1.25rem; }
.grid-2 { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }

/* KPI */
.kpi_grid { display: grid; gap: .9rem; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.kpi_card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1rem 1.1rem; box-shadow: var(--shadow); }
.kpi_label { font-size: .78rem; text-transform: uppercase; letter-spacing: .5px; color: var(--color-muted); font-weight: 600; }
.kpi_value { font-size: 1.6rem; font-weight: 700; margin-top: .15rem; }
.kpi_sub { font-size: .8rem; color: var(--color-muted); }
.kpi_card.is-highlight { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.kpi_card.is-highlight .kpi_label, .kpi_card.is-highlight .kpi_sub { color: #bcd0e6; }
.kpi_card.is-highlight .text-color-negative { color: #ffb4aa; }
.kpi_card.is-highlight .text-color-positive { color: #8ee3b9; }

/* Tableaux */
.table_wrapper { overflow-x: auto; }
.table_component { width: 100%; border-collapse: collapse; }
.table_component th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .4px; color: var(--color-muted); padding: .4rem .5rem; border-bottom: 1px solid var(--color-border); }
.table_component td { padding: .25rem .5rem; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
.table_component tr:last-child td { border-bottom: 0; }
.table_component tr.is-done td { color: var(--color-muted); }
.table_component tr.is-virtual td { color: var(--color-muted); font-style: italic; }
.table_component tfoot td { font-weight: 700; border-top: 2px solid var(--color-border); }

.tag { display: inline-block; padding: .1rem .55rem; border-radius: 99px; font-size: .75rem; background: var(--color-primary-soft); color: var(--color-primary); font-weight: 600; }
.tag.is-positive { background: var(--color-positive-soft); color: var(--color-positive); }
.tag.is-negative { background: var(--color-negative-soft); color: var(--color-negative); }

/* Navigation mois */
.month_nav { display: flex; align-items: center; gap: .6rem; }
.month_title { font-size: 1.5rem; font-weight: 700; text-transform: capitalize; min-width: 11ch; text-align: center; }
.month_nav .form_select { width: auto; }

/* Barres catégories */
.bar_row { display: grid; grid-template-columns: 130px 1fr 90px; gap: .75rem; align-items: center; padding: .3rem 0; font-size: .9rem; }
.bar_track { height: 10px; background: var(--color-primary-soft); border-radius: 99px; overflow: hidden; }
.bar_fill { height: 100%; background: var(--color-primary); border-radius: 99px; }

/* Graphique */
.chart_svg { width: 100%; height: auto; display: block; }
.chart_svg text { fill: var(--color-muted); font-size: 11px; }

/* Connexion */
.login_wrapper { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login_card { background: #fff; border: 1px solid var(--color-border); border-radius: 14px; box-shadow: var(--shadow); padding: 2rem; width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 1rem; }

/* Toast */
.toast_component { position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%); background: var(--color-text); color: #fff; padding: .6rem 1.1rem; border-radius: 8px; z-index: 50; }
.toast_component.is-error { background: var(--color-negative); }

.empty_state { padding: 1.25rem; text-align: center; color: var(--color-muted); }

@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
  .navbar_container { gap: .6rem; }
  .navbar_brand { display: none; }
  .bar_row { grid-template-columns: 90px 1fr 80px; }
  .month_title { font-size: 1.15rem; min-width: 8ch; }
}
#month-select { width: auto; text-transform: capitalize; }

/* Entrées (vert) / sorties (rouge) */
.card_component.is-income { border-top: 4px solid var(--color-positive); background: linear-gradient(var(--color-positive-soft), #fff 90px); }
.card_component.is-expense { border-top: 4px solid var(--color-negative); background: linear-gradient(var(--color-negative-soft), #fff 90px); }
.kpi_card.is-income { border-left: 4px solid var(--color-positive); background: var(--color-positive-soft); }
.kpi_card.is-expense { border-left: 4px solid var(--color-negative); background: var(--color-negative-soft); }
.table_component tr.is-income-row td:first-child { box-shadow: inset 3px 0 0 var(--color-positive); }
.table_component tr.is-expense-row td:first-child { box-shadow: inset 3px 0 0 var(--color-negative); }
.form_input.amount-in { color: var(--color-positive); font-weight: 600; }
.form_input.amount-out { color: var(--color-negative); font-weight: 600; }
.table_component tr.is-done .amount-in, .table_component tr.is-done .amount-out { opacity: .65; }
.form_checkbox { accent-color: var(--color-primary); }
.is-income .form_checkbox { accent-color: var(--color-positive); }
.is-expense .form_checkbox { accent-color: var(--color-negative); }
.is-expense .bar_track { background: var(--color-negative-soft); }
.is-expense .bar_fill { background: var(--color-negative); }
.is-income .button:not(.is-icon):not(.is-secondary) { background: var(--color-positive); }
.is-expense .button:not(.is-icon):not(.is-secondary) { background: var(--color-negative); }