/* ============================================================
   Buob Rohrleitungsbau — Design-system components as CSS
   Ported from the React DS components (SectionIntro, Button, Field),
   which shipped as inline styles.
   ============================================================ */

/* ---- Section intro (eyebrow + heading + optional lead) ---- */
.buob-section-intro { }
.buob-section-intro__eyebrow { margin-bottom: 20px; }
.buob-section-intro__inner { display: block; }
.buob-section-intro__heading {
  font-family: var(--font-body);
  font-weight: 800;
  font-size: var(--h1);
  line-height: 1.0;
  text-transform: uppercase;
  letter-spacing: -0.014em;
  color: var(--ink-900);
  margin: 0;
  text-wrap: balance;
}
.buob-section-intro--dark .buob-section-intro__heading { color: var(--white); }
.buob-section-intro__lead {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--body-sm);
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0;
  max-width: 460px;
  text-wrap: pretty;
}
.buob-section-intro--dark .buob-section-intro__lead { color: var(--text-on-dark-soft); }

/* default two-column (heading + lead side by side) */
.buob-section-intro--split .buob-section-intro__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 64px;
  align-items: end;
}

/* grid variant — heading spans 1/6, lead 6/13 of the 12-col grid */
.buob-section-intro--grid .buob-section-intro__inner {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  column-gap: var(--grid-gutter);
  align-items: end;
}
.buob-section-intro--grid .buob-section-intro__heading { grid-column: 1 / 6; }
.buob-section-intro--grid .buob-section-intro__lead {
  grid-column: 6 / 13;
  font-weight: 400;
  font-size: var(--body-md);
  line-height: var(--body-md-lh);
  max-width: none;
}

@media (max-width: 760px) {
  .buob-section-intro--split .buob-section-intro__inner,
  .buob-section-intro--grid .buob-section-intro__inner {
    grid-template-columns: 1fr;
    gap: 24px;
    row-gap: 24px;
  }
  .buob-section-intro--grid .buob-section-intro__heading,
  .buob-section-intro--grid .buob-section-intro__lead { grid-column: 1 / -1; }
}

/* ---- Button ---- */
.buob-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: var(--btn-height);
  padding: 0 var(--btn-padding-x);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  line-height: 1.2;
  border-radius: var(--btn-radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  box-sizing: border-box;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out), filter var(--dur-fast) var(--ease-out);
}
.buob-btn--primary { background: var(--petrol-800); color: var(--white); }
.buob-btn--primary:hover { filter: brightness(1.08); }
.buob-btn--ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.45); }
.buob-btn--ghost:hover { background: rgba(255,255,255,0.06); border-color: var(--teal-400); }
.buob-btn--phone {
  background: var(--surface-2); color: var(--petrol-800);
  letter-spacing: 0.5px; text-transform: none; font-weight: 700; font-size: 20px;
}
.buob-btn[disabled] { opacity: 0.45; cursor: not-allowed; }
.buob-btn__icon { display: inline-flex; }

/* ---- Form field ---- */
.buob-field { display: block; }
.buob-field__label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--eyebrow-size);
  line-height: var(--eyebrow-lh);
  letter-spacing: var(--eyebrow-tracking);
  text-transform: uppercase;
  color: var(--petrol-800);
  margin-bottom: 5px;
}
.buob-field__control {
  width: 100%;
  box-sizing: border-box;
  font-family: var(--font-body);
  font-size: var(--body-lg);
  color: var(--ink-900);
  background: transparent;
  border: none;
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px var(--teal-500);
  padding: 0 16px;
  height: 56px;
  outline: none;
  line-height: 1.36;
  transition: box-shadow var(--dur-fast) var(--ease-out);
}
textarea.buob-field__control {
  padding: 14px 16px;
  height: auto;
  min-height: 112px;
  resize: vertical;
}
.buob-field__control:focus { box-shadow: inset 0 0 0 2px var(--teal-500); }
.buob-field__control::placeholder { color: var(--text-placeholder); }

/* underline variant (single-line) */
.buob-field--underline .buob-field__control {
  border-radius: 0;
  box-shadow: none;
  border-bottom: 1px solid var(--teal-500);
  padding: 0 0 12px;
  height: 44px;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.buob-field--underline .buob-field__control:focus { border-bottom-color: var(--petrol-800); border-bottom-width: 2px; }

/* ---- Prose (Impressum / Datenschutz — long-form legal copy) ----
   Used both on the standalone page and inside the overlay, so the two can
   never drift apart. The page *layout* around it lives in main.css, next to
   .container — that file loads later and would otherwise win. */
.buob-prose {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-900);
}
.buob-prose > *:first-child { margin-top: 0; }
.buob-prose > *:last-child  { margin-bottom: 0; }
.buob-prose h2 {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: var(--h3-tracking);
  color: var(--petrol-800);
  margin: var(--space-7) 0 var(--space-4);
}
.buob-prose h3 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--petrol-800);
  margin: var(--space-6) 0 var(--space-3);
}
.buob-prose p  { margin: 0 0 var(--space-4); }
.buob-prose ul { margin: 0 0 var(--space-4); padding-left: 22px; }
.buob-prose li { margin-bottom: var(--space-3); }
.buob-prose strong { font-weight: 700; }
.buob-prose a {
  color: var(--petrol-800);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--teal-500);
  transition: color var(--dur-fast) var(--ease-out);
  /* Legal texts are full of long URLs and e-mail addresses. */
  overflow-wrap: anywhere;
}
.buob-prose a:hover { color: var(--teal-500); }
.buob-prose a:focus-visible {
  outline: 3px solid var(--teal-500);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ---- Legal overlay (footer links open the pages in a dialog) ---- */
.buob-modal {
  width: min(820px, calc(100vw - 2 * var(--page-margin)));
  max-width: none;
  max-height: min(84vh, 900px);
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-raised);
  color: var(--ink-900);
  overflow: hidden; /* the body scrolls, not the dialog */
}
.buob-modal::backdrop {
  background: rgba(26, 34, 48, 0.62);
  backdrop-filter: blur(2px);
}
.buob-modal__sheet {
  display: flex;
  flex-direction: column;
  max-height: min(84vh, 900px);
}
.buob-modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 28px 32px 20px;
  border-bottom: 1px solid rgba(26, 34, 48, 0.1);
  background: var(--white);
  flex: none;
}
.buob-modal__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.15;
  letter-spacing: var(--h3-tracking);
  color: var(--petrol-800);
  margin: 0;
}
.buob-modal__close {
  flex: none;
  width: 44px;
  height: 44px;
  margin: -8px -8px 0 0; /* optical alignment; keeps the 44px touch target */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--petrol-800);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.buob-modal__close svg { width: 22px; height: 22px; }
.buob-modal__close:hover { background: rgba(0, 66, 90, 0.07); color: var(--teal-500); }
.buob-modal__close:focus-visible { outline: 3px solid var(--teal-500); outline-offset: 2px; }
.buob-modal__body {
  padding: 24px 32px 32px;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}
.buob-modal__body:focus { outline: none; }

@media (max-width: 760px) {
  .buob-modal {
    /* Full-bleed sheet on phones — a long legal text needs the room. */
    width: 100vw;
    max-width: 100vw;
    max-height: 100dvh;
    height: 100dvh;
    border-radius: 0;
    margin: 0;
  }
  .buob-modal__sheet { max-height: 100dvh; height: 100dvh; }
  .buob-modal__head { padding: 20px 20px 16px; }
  .buob-modal__body { padding: 20px 20px 40px; }
  .buob-prose { font-size: 16px; }
}