/* ========================================
   GruenisOS — Gemeinsame Basis-Styles
   ======================================== */

/* --- 1. CSS CUSTOM PROPERTIES --- */
:root {
  /* Farben — Grünis Corporate */
  --color-primary: #2e7d32;
  --color-primary-light: #4caf50;
  --color-primary-dark: #1b5e20;
  --color-primary-surface: #e8f5e9;
  --color-accent: #ff9800;
  --color-error: #d32f2f;
  --color-error-surface: #ffebee;
  --color-success: #388e3c;
  --color-text: #212121;
  --color-text-secondary: #757575;
  --color-text-inverse: #ffffff;
  --color-background: #fafafa;
  --color-surface: #ffffff;
  --color-border: #e0e0e0;

  /* Typografie */
  --font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.375rem;
  --font-size-xxl: 1.75rem;

  /* Spacing (8px Grid) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;

  /* Touch-Targets */
  --touch-min: 48px;
  --touch-comfortable: 56px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Layout */
  --max-content-width: 600px;
}

/* --- 2. RESET --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

input,
button,
select,
textarea {
  font: inherit;
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

/* --- 3. BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-height: var(--touch-comfortable);
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-lg);
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  user-select: none;
  transition:
    background-color 0.15s,
    border-color 0.15s,
    transform 0.1s,
    opacity 0.15s;
  -webkit-appearance: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn--primary:active:not(:disabled) {
  background-color: var(--color-primary-dark);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:active:not(:disabled) {
  background-color: var(--color-primary-surface);
}

.btn--danger {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
  border-color: var(--color-error);
}

.btn--block {
  width: 100%;
}

.btn--sm {
  min-height: var(--touch-min);
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-base);
}

.btn--deselect {
  align-self: flex-end;
  margin-top: var(--space-lg);
  background: none;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
  font-size: var(--font-size-sm);
  min-height: 36px;
  padding: var(--space-xs) var(--space-md);
}

.btn--deselect:active {
  background-color: var(--color-error-surface);
  border-color: var(--color-error);
  color: var(--color-error);
}

/* --- 4. FORM ELEMENTS --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  min-height: var(--touch-comfortable);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-lg);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
  -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-surface);
}

.form-input--error,
.form-select--error {
  border-color: var(--color-error);
}

.form-input--error:focus {
  box-shadow: 0 0 0 3px var(--color-error-surface);
}

.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-error);
  margin-top: var(--space-xs);
}

.form-textarea {
  min-height: calc(var(--touch-comfortable) * 2);
  resize: vertical;
}

/* --- 5. CARDS (selectable) --- */
.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition:
    border-color 0.15s,
    background-color 0.15s,
    transform 0.1s;
}

.card--selectable {
  cursor: pointer;
  user-select: none;
}

.card--selectable:active {
  transform: scale(0.98);
}

.card--selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-surface);
}

.card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  flex: 1;
}

.card__price {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.card__details {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  display: none;
  /* Verhindert, dass Klicks in Details die Card togglen */
  position: relative;
}

.card--selected .card__details {
  display: block;
}

/* --- 6. CHIPS (Mitarbeiter-Auswahl) --- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: var(--touch-comfortable);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  user-select: none;
  transition:
    border-color 0.15s,
    background-color 0.15s,
    transform 0.1s;
}

.chip:active {
  transform: scale(0.97);
}

.chip--selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-surface);
}

.chip__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
}

.chip--selected .chip__avatar {
  background-color: var(--color-primary-dark);
}

.chip__label {
  font-size: var(--font-size-base);
  font-weight: 500;
}

.chip__badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  background-color: var(--color-border);
  color: var(--color-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
}

.chip--selected .chip__badge {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* --- 7. COUNTER ([-] [Wert] [+]) --- */
.counter {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.counter__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-comfortable);
  height: var(--touch-comfortable);
  font-size: var(--font-size-xl);
  font-weight: 700;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
  transition: background-color 0.15s;
  user-select: none;
  touch-action: manipulation; /* Verhindert Double-Tap-Zoom */
}

.counter__btn:active {
  background-color: var(--color-primary-surface);
}

.counter__btn:disabled {
  color: var(--color-border);
  cursor: not-allowed;
}

.counter__value {
  min-width: 60px;
  text-align: center;
  font-size: var(--font-size-lg);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.counter__unit {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-right: var(--space-sm);
}

/* --- 8. TOGGLE --- */
.toggle {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: var(--touch-comfortable);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  user-select: none;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  transition:
    border-color 0.15s,
    background-color 0.15s;
}

.toggle:active {
  transform: scale(0.98);
}

.toggle--checked {
  border-color: var(--color-primary);
  background-color: var(--color-primary-surface);
}

.toggle__switch {
  position: relative;
  width: 52px;
  height: 28px;
  background-color: var(--color-border);
  border-radius: 14px;
  flex-shrink: 0;
  transition: background-color 0.2s;
}

.toggle--checked .toggle__switch {
  background-color: var(--color-primary);
}

.toggle__switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 24px;
  height: 24px;
  background: white;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s;
}

.toggle--checked .toggle__switch::after {
  transform: translateX(24px);
}

.toggle__label {
  font-size: var(--font-size-lg);
  font-weight: 500;
  flex: 1;
}

/* --- 9. UTILITY CLASSES --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}
.text-sm {
  font-size: var(--font-size-sm);
}
.text-secondary {
  color: var(--color-text-secondary);
}

.mt-sm {
  margin-top: var(--space-sm);
}
.mt-md {
  margin-top: var(--space-md);
}
.mt-lg {
  margin-top: var(--space-lg);
}
.mb-sm {
  margin-bottom: var(--space-sm);
}
.mb-md {
  margin-bottom: var(--space-md);
}
.mb-lg {
  margin-bottom: var(--space-lg);
}

.flex {
  display: flex;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}
.flex-wrap {
  flex-wrap: wrap;
}
.gap-sm {
  gap: var(--space-sm);
}
.gap-md {
  gap: var(--space-md);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.hidden {
  display: none !important;
}

/* --- 10. SECTION HEADERS --- */
.section-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary-surface);
}

/* --- 11. ALERT/INFO BOXES --- */
.alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  border: 2px solid;
}

.alert--warning {
  background-color: #fff3e0;
  border-color: var(--color-accent);
  color: #e65100;
}

.alert--error {
  background-color: var(--color-error-surface);
  border-color: var(--color-error);
  color: var(--color-error);
}

.alert--info {
  background-color: #e3f2fd;
  border-color: #1976d2;
  color: #0d47a1;
}