/* ==========================================================================
   Wasserbar Juliet Sparrechner – aquaJAMES / SAUNAEXPERT
   Mobile First, responsive, Shopify-embeddbar
   ========================================================================== */

:root {
  --color-bg: #f4f8fb;
  --color-surface: #ffffff;
  --color-primary: #0077a8;
  --color-primary-dark: #005f87;
  --color-primary-light: #e6f4fa;
  --color-accent: #00b4d8;
  --color-text: #1a2b36;
  --color-text-muted: #5c6f7a;
  --color-border: #d8e6ee;
  --color-success: #0d7a5f;
  --color-success-bg: #e8f7f2;
  --shadow-sm: 0 2px 8px rgba(0, 60, 90, 0.06);
  --shadow-md: 0 8px 28px rgba(0, 60, 90, 0.1);
  --radius: 16px;
  --radius-sm: 10px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 1rem;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* Hauptcontainer */
.calculator {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

/* Kopfbereich */
.calculator__header {
  padding: 1.5rem 1.25rem 1.25rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
}

.calculator__brand {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.9;
}

.calculator__title {
  margin: 0 0 0.5rem;
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.25;
}

.calculator__subtitle {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.45;
  opacity: 0.92;
}

/* Formular */
.calculator__form {
  padding: 1.25rem;
}

.calculator__grid {
  display: grid;
  gap: 1rem;
}

.field label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
}

.field__input-wrap {
  display: flex;
  align-items: stretch;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
}

.field__input-wrap:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 119, 168, 0.15);
}

.field input {
  flex: 1;
  min-width: 0;
  padding: 0.75rem 0.875rem;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  outline: none;
}

/* Browser-Spinner ausblenden */
.field input[type="number"]::-webkit-inner-spin-button,
.field input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.field input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

.field__unit {
  display: flex;
  align-items: center;
  padding: 0 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-primary-light);
  white-space: nowrap;
}

/* Button */
.calculator__button {
  display: block;
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.calculator__button:hover {
  background: var(--color-primary-dark);
}

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

/* Ergebnisbereich */
.results {
  margin: 0 1.25rem 1.25rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
}

.results__heading {
  margin: 0 0 1rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.results__list {
  margin: 0;
  padding: 0;
}

.results__item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(0, 119, 168, 0.12);
}

.results__item:last-of-type {
  border-bottom: none;
}

.results__item dt {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex: 1;
}

.results__item dd {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
  text-align: right;
  white-space: nowrap;
}

.results__item--highlight {
  margin-top: 0.25rem;
  padding: 0.75rem;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.results__item--highlight dt {
  color: var(--color-text);
  font-weight: 600;
}

.results__item--highlight dd {
  font-size: 1.0625rem;
  color: var(--color-success);
}

.results__assessment {
  margin: 1rem 0 0;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-success-bg);
  border-left: 4px solid var(--color-success);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.45;
}

.results__assessment:empty {
  display: none;
}

.results__disclaimer {
  margin: 1rem 0 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-text-muted);
}

/* Tablet */
@media (min-width: 600px) {
  body {
    padding: 2rem 1.5rem;
  }

  .calculator__header {
    padding: 2rem 2rem 1.5rem;
  }

  .calculator__title {
    font-size: 1.625rem;
  }

  .calculator__form {
    padding: 1.5rem 2rem;
  }

  .calculator__grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .results {
    margin: 0 2rem 2rem;
    padding: 1.5rem;
  }
}

/* Desktop */
@media (min-width: 900px) {
  .calculator {
    max-width: 800px;
  }

  .calculator__title {
    font-size: 1.75rem;
  }
}