/*
  Splitsy — gedeeld stylesheet.
  Eén extern bestand i.p.v. inline <style> op elke pagina, zodat de
  browser het maar één keer hoeft te downloaden en daarna cachet.
  Systeemlettertypes: geen extra netwerk-request voor webfonts.
*/

:root {
  color-scheme: light dark;

  --bg: #f4f4f9;
  --surface: #ffffff;
  --surface-alt: #eef1f6;
  --text: #1c1e21;
  --text-muted: #5b6270;
  --border: #dde1e8;
  --accent: #0056b3;
  --accent-contrast: #ffffff;
  --success: #1e7a34;
  --success-bg: #e8f5ea;
  --danger: #b3261e;
  --danger-bg: #fbeceb;
  --focus-ring: #1a73e8;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(20, 25, 40, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --surface: #1e2126;
    --surface-alt: #262a31;
    --text: #eef0f3;
    --text-muted: #a6adba;
    --border: #383d46;
    --accent: #6fa8ff;
    --accent-contrast: #0b1220;
    --success: #7fd694;
    --success-bg: #123420;
    --danger: #ff8a80;
    --danger-bg: #3a1614;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-size: 16px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.topbar .brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar nav a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 6px;
}

.topbar nav a:hover,
.topbar nav a:focus-visible {
  background: var(--surface-alt);
}

main.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.container.narrow {
  max-width: 620px;
}

h1 {
  font-size: 1.4rem;
  margin: 0 0 4px;
}

h2 {
  font-size: 1.1rem;
  color: var(--text);
  margin: 0 0 14px;
}

p.subtitle {
  color: var(--text-muted);
  margin-top: 0;
}

.box {
  background: var(--surface);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.box.accent {
  background: var(--surface-alt);
  border-left: 5px solid var(--accent);
}

.flash {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 18px;
  font-weight: 600;
}

.flash.success {
  background: var(--success-bg);
  color: var(--success);
}

.flash.error {
  background: var(--danger-bg);
  color: var(--danger);
}

.field-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin: 4px 0 0;
}

.form-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.form-group {
  margin-bottom: 14px;
  flex: 1 1 200px;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.92rem;
}

.hint {
  display: block;
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 2px;
}

input[type="text"],
input[type="date"],
input[type="number"],
select {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 1rem;
}

input:focus-visible,
select:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.btn {
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 10px 18px;
  border: none;
  cursor: pointer;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
}

.btn:hover {
  filter: brightness(1.08);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
}

.btn-link {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  text-decoration: underline;
  font: inherit;
  cursor: pointer;
}

.actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-edit {
  color: var(--accent);
  text-decoration: underline;
  font-weight: 600;
}

.btn-delete {
  color: var(--danger);
  text-decoration: underline;
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 4px;
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

th {
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 0.9rem;
}

th:first-child {
  border-top-left-radius: 8px;
}

th:last-child {
  border-top-right-radius: 8px;
}

.amount-positive {
  color: var(--success);
  font-weight: 700;
}

.amount-negative {
  color: var(--danger);
  font-weight: 700;
}

.empty-state {
  color: var(--text-muted);
  font-style: italic;
}

.summary-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 0 0 16px;
  font-size: 1.02rem;
}

.summary-line strong {
  color: var(--text);
}

.share-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 10px;
}

.share-box summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--accent);
}

.share-box .actions {
  margin-top: 4px;
}

.share-box input[readonly] {
  background: var(--surface-alt);
  cursor: pointer;
}

.bar-track {
  background: var(--surface-alt);
  border-radius: 4px;
  height: 10px;
  overflow: hidden;
}

.bar-fill {
  background: var(--accent);
  height: 100%;
}

footer.app-footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 20px;
}

/* Responsief: onder ~640px worden tabellen "kaarten" i.p.v. horizontaal
   scrollende rasters, zodat het op een telefoon prettig blijft lezen. */
@media (max-width: 640px) {
  main.container {
    padding: 16px 12px 48px;
  }

  .box {
    padding: 16px;
  }

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

  thead {
    position: absolute;
    left: -9999px;
  }

  tbody tr {
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 12px;
    padding: 6px 10px;
  }

  td {
    border-bottom: none;
    padding: 6px 0;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    text-align: right;
  }

  td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--text-muted);
    text-align: left;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }
}