/**
 * Modul: Budget-Tracker (Budget)
 * Zweck: Styles für Monatsübersicht, Balkendiagramm, Transaktionsliste, Modal
 * Abhängigkeiten: tokens.css, layout.css
 */

/* --------------------------------------------------------
 * Modul-Akzent
 * -------------------------------------------------------- */
.budget-page { --module-accent: var(--module-budget); }

/* --------------------------------------------------------
 * Seiten-Layout
 * -------------------------------------------------------- */
.budget-page {
  display: flex;
  flex-direction: column;
  height: calc(100dvh - var(--safe-area-inset-top) - var(--nav-bottom-height) - var(--safe-area-inset-bottom));
  max-width: var(--content-max-width);
  margin: 0 auto;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .budget-page { height: 100dvh; }
}

/* --------------------------------------------------------
 * Monat-Navigation
 * -------------------------------------------------------- */
.budget-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
  flex-shrink: 0;
}

.budget-nav__label {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  flex: 1;
  text-align: center;
}

.budget-nav__today {
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-accent-light);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

/* --------------------------------------------------------
 * Zusammenfassungs-Karten
 * -------------------------------------------------------- */
.budget-summary {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  flex-shrink: 0;
}

@media (min-width: 480px) {
  .budget-summary {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
  }
}

.budget-summary-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.budget-summary-card__label {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.budget-summary-card__amount {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
}

.budget-summary-card--income   .budget-summary-card__amount { color: var(--color-success); }
.budget-summary-card--expenses .budget-summary-card__amount { color: var(--color-danger);  }
.budget-summary-card--balance  .budget-summary-card__amount { color: var(--color-text-primary); }
.budget-summary-card--balance-positive .budget-summary-card__amount { color: var(--color-success); }
.budget-summary-card--balance-negative .budget-summary-card__amount { color: var(--color-danger);  }

.budget-summary-card__trend {
  font-size: var(--text-xs);
  margin-top: var(--space-1);
}
.budget-summary-card__trend--positive { color: var(--color-success); }
.budget-summary-card__trend--negative { color: var(--color-danger);  }
.budget-summary-card__trend--neutral  { color: var(--color-text-secondary); }

/* --------------------------------------------------------
 * Kategorien-Diagramm (Canvas)
 * -------------------------------------------------------- */
.budget-chart-section {
  padding: 0 var(--space-4) var(--space-3);
  flex-shrink: 0;
}

.budget-chart-section__title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.budget-chart {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.budget-bar-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.budget-bar-row__label {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  width: 90px;
  flex-shrink: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.budget-bar-row__track {
  flex: 1;
  height: var(--space-2);
  background-color: var(--color-surface-2);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.budget-bar-row__fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.budget-bar-row__fill--income   { background-color: var(--color-success); }
.budget-bar-row__fill--expenses { background-color: var(--color-danger);  }

.budget-bar-row__amount {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  width: 64px;
  text-align: right;
  flex-shrink: 0;
}

/* --------------------------------------------------------
 * Transaktions-Liste
 * -------------------------------------------------------- */
.budget-list-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
}

.budget-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4) var(--space-2);
  flex-shrink: 0;
  border-top: 3px solid var(--module-accent);
}

.budget-list-header__title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.budget-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.budget-entry {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
  border-left: 3px solid var(--module-accent);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.budget-entry:hover {
  background-color: var(--color-surface-2);
}

.budget-entry__indicator {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.budget-entry__indicator--income   { background-color: var(--color-success); }
.budget-entry__indicator--expenses { background-color: var(--color-danger);  }

.budget-entry__body {
  flex: 1;
  min-width: 0;
}

.budget-entry__title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.budget-entry__meta {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: 1px;
}

.budget-entry__amount {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  flex-shrink: 0;
}

.budget-entry__amount--income   { color: var(--color-success); }
.budget-entry__amount--expenses { color: var(--color-danger);  }

.budget-entry__delete {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-disabled);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast), color var(--transition-fast);
  position: relative;
}

.budget-entry__delete::before {
  content: '';
  position: absolute;
  inset: -10px;
}

.budget-entry:hover .budget-entry__delete {
  opacity: 1;
}

.budget-entry__delete:hover {
  color: var(--color-danger);
}


/* --------------------------------------------------------
 * Budget-Modal Content-Styles (Overlay/Panel via shared modal.js)
 * -------------------------------------------------------- */

/* Einnahme/Ausgabe-Toggle */
.amount-type-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  background-color: var(--color-surface-2);
  border-radius: var(--radius-sm);
  padding: var(--space-0h);
}

.amount-type-btn {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-xs);
  border: none;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  background: none;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  min-height: var(--target-lg);
}

.amount-type-btn--income.amount-type-btn--active {
  background-color: var(--color-success);
  color: var(--color-text-on-accent);
}

.amount-type-btn--expenses.amount-type-btn--active {
  background-color: var(--color-danger);
  color: var(--color-text-on-accent);
}