:root {
  --bg: #eff5f2;
  --card: #ffffff;
  --text: #122925;
  --muted: #4b635f;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --border: #d8e4e1;
  --danger: #b91c1c;
  --tab-bg: #ffffff;
  --soft-bg: #e8f2ef;
  --soft-text: #163632;
  --summary-bg: #fbfefd;
  --konto-border: #bdd8d2;
  --konto-bg: #ecf7f4;
  --konto-text: #0f5e56;
  --day-btn-bg-start: #ffffff;
  --day-btn-bg-end: #f7fcfb;
  --body-radial: #d6f0ea;
  --body-top: #f9fbfb;
  --shadow: rgba(16, 37, 33, 0.06);
  --shadow-strong: rgba(16, 37, 33, 0.08);
}

:root[data-theme="dark"] {
  --bg: #141a18;
  --card: #1b2522;
  --text: #e7f0ed;
  --muted: #a7bbb4;
  --accent: #3a9f8f;
  --accent-strong: #2f887b;
  --border: #334642;
  --danger: #ff7d7d;
  --tab-bg: #212d2a;
  --soft-bg: #2a3835;
  --soft-text: #d9e7e2;
  --summary-bg: #1f2b28;
  --konto-border: #3f5852;
  --konto-bg: #243430;
  --konto-text: #92d6c8;
  --day-btn-bg-start: #202c29;
  --day-btn-bg-end: #1a2421;
  --body-radial: #263833;
  --body-top: #1a2421;
  --shadow: rgba(0, 0, 0, 0.35);
  --shadow-strong: rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, var(--body-radial) 0%, transparent 35%),
    linear-gradient(180deg, var(--body-top) 0%, var(--bg) 100%);
  min-height: 100vh;
}

.app {
  max-width: 820px;
  margin: 0 auto;
  padding: 20px 14px 32px;
}

.top h1 {
  margin: 8px 0 0;
}

.sub {
  margin: 6px 0 18px;
  color: var(--muted);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.tab {
  border: 1px solid var(--border);
  background: var(--tab-bg);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 8px;
  font-weight: 700;
}

.tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
  box-shadow: 0 6px 16px var(--shadow);
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.btn {
  width: auto;
  border: 0;
  border-radius: 10px;
  padding: 12px 14px;
  color: #fff;
  background: var(--accent);
  font-size: 16px;
  font-weight: 700;
}

.btn:active {
  transform: translateY(1px);
}

h2 {
  margin-top: 4px;
  margin-bottom: 10px;
  font-size: 18px;
}

.btn.soft {
  background: var(--soft-bg);
  color: var(--soft-text);
}

.screen.hidden {
  display: none;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.konto-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 8px;
  align-items: stretch;
  margin-bottom: 12px;
}

.konto-tile {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  border: 1px solid var(--konto-border);
  background: var(--konto-bg);
  border-radius: 10px;
  padding: 12px;
  min-height: 104px;
  width: 100%;
  text-align: left;
  color: var(--konto-text);
  cursor: pointer;
  box-shadow: 0 4px 10px var(--shadow);
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
  -webkit-appearance: none;
  appearance: none;
}

.konto-tile:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 16px var(--shadow-strong);
}

.konto-tile:active {
  transform: translateY(1px);
}

.konto-tile:focus-visible {
  outline: 2px solid #0f766e;
  outline-offset: 2px;
}

.konto-tile span {
  color: var(--konto-text);
  font-size: 14px;
  font-weight: 700;
}

.konto-tile strong {
  font-size: 28px;
  line-height: 1.1;
}

.konto-body {
  white-space: pre-line;
  color: var(--text);
  line-height: 1.45;
}

.summary-grid div {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: var(--summary-bg);
}

.summary-grid span {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.summary-grid strong {
  font-size: 18px;
}

.days {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.week-header {
  margin-top: 8px;
}

.week-header:first-child {
  margin-top: 0;
}

.week-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--konto-border);
  background: var(--konto-bg);
  color: var(--konto-text);
  font-size: 12px;
  font-weight: 700;
}

.day-row {
  margin: 0;
}

.day-btn {
  width: 100%;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--day-btn-bg-start) 0%, var(--day-btn-bg-end) 100%);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  text-align: left;
  color: var(--text);
  box-shadow: 0 4px 10px var(--shadow);
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.day-btn:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 16px var(--shadow-strong);
}

.day-btn:active {
  transform: translateY(1px);
}

.day-btn:focus-visible {
  outline: 2px solid #0f766e;
  outline-offset: 2px;
}

.day-btn .left,
.day-btn .right {
  display: flex;
  flex-direction: column;
}

.day-btn small {
  color: var(--muted);
}

.day-btn .right {
  align-items: flex-end;
}

.plus {
  color: #0f5132;
}

.minus {
  color: var(--danger);
}

.field {
  margin-bottom: 10px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.field label {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
}

.field input,
.field select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  font-size: 16px;
}

#settingsScreen .btn,
#backupScreen .btn {
  width: 100%;
  margin-top: 6px;
}

.restore {
  display: block;
  margin-top: 10px;
}

.restore span {
  display: block;
  margin-bottom: 4px;
}

.hint {
  font-size: 13px;
  color: var(--muted);
}

dialog {
  width: min(560px, calc(100vw - 24px));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0;
}

dialog::backdrop {
  background: rgba(16, 37, 33, 0.36);
}

#dayForm {
  padding: 14px;
}

#dayForm h3 {
  margin: 0 0 10px;
}

#kontoForm {
  padding: 14px;
}

#kontoForm h3 {
  margin: 0 0 10px;
}

.dialog-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 12px;
}

@media (max-width: 480px) {
  .app {
    padding: 14px 10px 20px;
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .konto-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .dialog-actions {
    grid-template-columns: 1fr;
  }
}