/* ============================================================================
   LUTZ UND LUTZ · PRODUCT COMPONENTS
   Real UI. Every component reads only from semantic tokens, so it behaves
   identically on web, signature, card and invoice. The React components in
   /components/* emit exactly these class names.
   ============================================================================ */

/* ---------------------------------------------------------------------------
   LOGO LOCKUP — SVG monogram (#logo-monogram) + live-text wordmark
   --------------------------------------------------------------------------- */
.logo-lockup { display: inline-flex; align-items: center; gap: 0.75rem; max-width: 100%; }
.logo-lockup--stack { flex-direction: column; gap: 0.6rem; text-align: center; }
.logo-mark { width: 2.75rem; height: 2.75rem; flex: none; }
.logo-text { display: grid; gap: 0.18rem; min-width: 0; }
.wordmark {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  letter-spacing: -0.022em;
  line-height: 0.95;
  color: var(--primary);
  font-size: 1.6rem;
  white-space: nowrap;
}
.wordmark__und { color: var(--accent); }
.logo-descriptor {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: var(--fw-semibold);
  color: var(--text-muted);
  white-space: nowrap;
}
.on-dark .wordmark { color: var(--color-white); }
.on-dark .logo-descriptor { color: var(--on-dark-muted); }
.logo-lockup--lg .logo-mark { width: 4rem; height: 4rem; }
.logo-lockup--lg .wordmark { font-size: 2.4rem; }
.logo-lockup--lg .logo-descriptor { font-size: 0.78rem; letter-spacing: 0.22em; }
@media (max-width: 560px) {
  .logo-descriptor { white-space: normal; }
  .logo-lockup--lg .logo-mark { width: 3rem; height: 3rem; }
  .logo-lockup--lg .wordmark { font-size: 1.9rem; }
}

/* ---------------------------------------------------------------------------
   BUTTONS
   --------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  line-height: 1;
  letter-spacing: 0.005em;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  background: transparent;
  color: var(--primary);
  cursor: pointer;
  transition: background var(--dur) var(--ease-out),
              color var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur) var(--ease-out);
  white-space: nowrap;
}
.btn svg { width: 1.15em; height: 1.15em; flex: none; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled, .btn[aria-disabled="true"] {
  opacity: .45; cursor: not-allowed; transform: none; box-shadow: none;
}

.btn--primary {
  background: var(--primary); color: var(--on-primary); border-color: var(--primary);
  box-shadow: var(--shadow-1);
}
.btn--primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); box-shadow: var(--shadow-2); }

.btn--accent {
  background: var(--accent); color: var(--on-accent); border-color: var(--accent);
  box-shadow: var(--shadow-1);
}
.btn--accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); box-shadow: var(--shadow-orange); }

.btn--secondary {
  background: transparent; color: var(--primary); border-color: var(--color-petrol-200);
}
.btn--secondary:hover { background: var(--color-petrol-50); border-color: var(--color-petrol-500); }

.btn--tertiary {
  background: transparent; color: var(--primary); border-color: transparent;
  padding-inline: 0.5rem;
}
.btn--tertiary:hover { color: var(--accent-text); }
.btn--tertiary .btn__arrow { transition: transform var(--dur) var(--ease-out); }
.btn--tertiary:hover .btn__arrow { transform: translateX(3px); }

.btn--pill { /* the "Über uns" pill CTA */
  background: var(--color-white); color: var(--primary); border-color: var(--line);
  box-shadow: var(--shadow-1);
}
.btn--pill:hover { border-color: var(--color-petrol-300); box-shadow: var(--shadow-2); }

.btn--on-dark { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn--on-dark.btn--ghost { background: transparent; color: var(--color-white); border-color: rgba(255,255,255,.28); }
.btn--on-dark.btn--ghost:hover { border-color: var(--color-orange-400); color: var(--color-orange-300); }

.btn--sm { padding: 0.625rem 1.05rem; font-size: var(--fs-caption); }
.btn--lg { padding: 1.05rem 1.85rem; font-size: var(--fs-body-l); }
.btn--block { display: flex; width: 100%; }

/* ---------------------------------------------------------------------------
   ICON CHIP — the circular housing for all icons
   --------------------------------------------------------------------------- */
.icon-chip {
  display: inline-grid;
  place-items: center;
  width: 3rem; height: 3rem;
  border-radius: var(--radius-full);
  background: var(--color-white);
  border: 1px solid var(--line);
  color: var(--primary);
  flex: none;
}
.icon-chip svg { width: 1.5rem; height: 1.5rem; stroke: currentColor; }
.icon-chip--lg { width: 4rem; height: 4rem; }
.icon-chip--lg svg { width: 2rem; height: 2rem; }
.icon-chip--accent { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.icon-chip--tint-warm { background: var(--color-orange-50); border-color: var(--color-orange-200); color: var(--accent-hover); }
.icon-chip--tint-cool { background: var(--color-petrol-50); border-color: var(--color-petrol-200); color: var(--primary); }
.icon-chip--solid { background: var(--primary); border-color: var(--primary); color: var(--color-white); }

/* ---------------------------------------------------------------------------
   CIRCLE-CHECK — the system signet
   --------------------------------------------------------------------------- */
.check {
  display: inline-grid;
  place-items: center;
  width: 1.5rem; height: 1.5rem;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: var(--color-white);
  flex: none;
}
.check svg { width: .9rem; height: .9rem; }
.check--cool { background: var(--color-petrol-700); }
.check--outline { background: transparent; border: 1.5px solid var(--accent); color: var(--accent-text); }
.check--lg { width: 2rem; height: 2rem; }
.check--lg svg { width: 1.15rem; height: 1.15rem; }

.check-list { display: grid; gap: var(--space-3); }
.check-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  align-items: start;
}
.check-item .check { margin-top: 1px; }
.check-item__text { line-height: 1.5; }
.check-item__text b { color: var(--text); font-weight: var(--fw-semibold); }

/* ---------------------------------------------------------------------------
   CREDENTIAL CHIP / SEAL
   --------------------------------------------------------------------------- */
.credential {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem 0.9rem 0.5rem 0.6rem;
  border-radius: var(--radius-pill);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  font-size: var(--fs-caption);
  font-weight: var(--fw-medium);
  color: var(--text);
}
.credential__mark {
  display: inline-grid; place-items: center;
  width: 1.5rem; height: 1.5rem; border-radius: var(--radius-full);
  background: var(--color-petrol-50); color: var(--primary); flex: none;
}
.credential__mark svg { width: .95rem; height: .95rem; }
.credential--accent .credential__mark { background: var(--color-orange-50); color: var(--accent-hover); }

/* Round quality seal/stamp */
.seal {
  position: relative;
  display: inline-grid; place-items: center;
  width: 7rem; height: 7rem; border-radius: var(--radius-full);
  background: var(--color-white);
  border: 2px solid var(--primary);
  color: var(--primary);
  text-align: center;
}
.seal--accent { border-color: var(--accent); color: var(--accent-hover); }
.seal--solid { background: var(--primary); color: var(--color-white); border-color: var(--primary); }

/* ---------------------------------------------------------------------------
   STAT / FIGURE CALLOUT
   --------------------------------------------------------------------------- */
.stat { display: grid; gap: var(--space-1); }
.stat__value {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: clamp(2.25rem, 1.8rem + 1.6vw, 3rem);
  line-height: 1;
  letter-spacing: var(--tracking-display);
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}
.stat__value em { font-style: normal; color: var(--accent); }
.stat__label {
  font-size: var(--fs-caption);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
  font-weight: var(--fw-semibold);
}

/* ---------------------------------------------------------------------------
   TAG / BADGE
   --------------------------------------------------------------------------- */
.tag {
  display: inline-flex; align-items: center; gap: var(--space-1);
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-micro);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
}
.tag--warm { background: var(--color-orange-50); color: var(--accent-text); }
.tag--cool { background: var(--color-petrol-50); color: var(--primary); }
.tag--solid { background: var(--primary); color: var(--color-white); }

/* ---------------------------------------------------------------------------
   CARD + SERVICE CARD (the two Bereiche)
   --------------------------------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-1);
  padding: var(--space-6);
}

.service-card {
  --_accent: var(--area-a-accent);
  --_surface: var(--area-a-surface);
  --_line: var(--area-a-line);
  position: relative;
  display: flex; flex-direction: column;
  gap: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--_line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-2);
  padding: var(--space-7);
  overflow: hidden;
}
.service-card[data-area="b"] {
  --_accent: var(--area-b-accent-deep);
  --_surface: var(--area-b-surface);
  --_line: var(--area-b-line);
}
.service-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 200px;
  background: linear-gradient(180deg, var(--_surface), transparent);
  opacity: .9; pointer-events: none;
}
.service-card > * { position: relative; }
.service-card > .btn { margin-top: auto; align-self: flex-start; }
.service-card__head { display: flex; align-items: center; gap: var(--space-4); }
.service-card__head > div { min-width: 0; }
@media (max-width: 560px) {
  .service-card__head { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
  .service-card__head > div { width: 100%; }
}
.service-card__title { font-family: var(--font-display); font-size: var(--fs-h2); font-weight: var(--fw-semibold); color: var(--primary); letter-spacing: var(--tracking-tight); }
.service-card__slogan {
  font-family: var(--font-display);
  font-size: var(--fs-body-l); font-weight: var(--fw-semibold);
  color: var(--_accent);
}
.service-card[data-area="b"] .service-card__slogan { color: var(--area-b-accent-deep); }
.service-card .check { background: var(--_accent); }
.service-card[data-area="b"] .check { background: var(--area-b-check-bg); }
.service-card__iconrow { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.svc-group { display: grid; gap: var(--space-3); }
.svc-group + .svc-group { margin-top: var(--space-2); }
.svc-h4 {
  font-family: var(--font-display); font-size: var(--fs-body);
  font-weight: var(--fw-semibold); color: var(--primary); letter-spacing: var(--tracking-tight);
}
.service-card[data-area="a"] .svc-h4 { color: var(--accent-text); }
.service-card[data-area="b"] .svc-h4 { color: var(--area-b-accent-deep); }
@media (max-width: 560px) {
  .service-card { padding: var(--space-5); }
  .service-card__title { font-size: var(--fs-h3); hyphens: auto; }
}

/* ---------------------------------------------------------------------------
   SECTION HEADER PATTERN
   --------------------------------------------------------------------------- */
.section-head { display: grid; gap: var(--space-3); max-width: 46rem; }
.section-head .h1, .section-head .h2 { margin-top: var(--space-1); }
.section-head--center { margin-inline: auto; text-align: center; justify-items: center; }

/* ---------------------------------------------------------------------------
   UTILITY / CONTACT BAR
   --------------------------------------------------------------------------- */
.utility-bar {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  background: var(--primary-deep);
  color: var(--on-dark);
  padding: 0.55rem var(--space-5);
  font-size: var(--fs-caption);
}
.utility-bar__group { display: flex; align-items: center; gap: var(--space-5); flex-wrap: wrap; }
.utility-link { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--on-dark); transition: color var(--dur) var(--ease-out); }
.utility-link svg { width: 1rem; height: 1rem; color: var(--color-orange-400); }
.utility-link:hover { color: var(--color-white); }
.utility-link--wa svg { color: #4BE07F; }

/* ---------------------------------------------------------------------------
   IMAGE FRAME
   --------------------------------------------------------------------------- */
.frame {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--color-petrol-100);
  border: 1px solid var(--line-cool);
  box-shadow: var(--shadow-2);
}
.frame::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(10,46,44,.05); border-radius: inherit; pointer-events: none; }
.frame > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.frame--focustop > img { object-position: center 28%; }
.frame--ratio-43 { aspect-ratio: 4 / 3; }
.frame--ratio-32 { aspect-ratio: 3 / 2; }
.frame--ratio-11 { aspect-ratio: 1 / 1; }
.frame--ratio-169 { aspect-ratio: 16 / 9; }
.frame--ratio-45 { aspect-ratio: 4 / 5; }
.frame--duotone img { filter: grayscale(1) contrast(1.05); mix-blend-mode: luminosity; }
.frame--duotone { background: var(--primary); }
.frame--duotone::before { content:""; position:absolute; inset:0; background: linear-gradient(140deg, var(--color-petrol-700), var(--color-petrol-500)); mix-blend-mode: color; z-index: 1; }

/* Labelled placeholder for where real photos go */
.photo-ph {
  display: grid; place-content: center; gap: var(--space-2);
  width: 100%; height: 100%; min-height: 220px;
  text-align: center; padding: var(--space-5);
  background:
    repeating-linear-gradient(135deg, transparent 0 16px, rgba(10,46,44,.025) 16px 17px),
    var(--color-petrol-50);
  color: var(--primary);
}
.photo-ph svg { width: 2rem; height: 2rem; margin-inline: auto; opacity: .55; }
.photo-ph__label { font-size: var(--fs-caption); font-weight: var(--fw-semibold); }
.photo-ph__note { font-size: var(--fs-micro); color: var(--text-muted); text-transform: uppercase; letter-spacing: var(--tracking-caps); }

/* ---------------------------------------------------------------------------
   REFERENZ / MINI-CASE
   --------------------------------------------------------------------------- */
.referenz {
  display: grid; gap: var(--space-3);
  padding: var(--space-6);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-1);
}
.referenz__kicker { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-micro); font-weight: var(--fw-bold); text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--accent-text); }
.referenz__title { font-family: var(--font-display); font-size: var(--fs-h3); font-weight: var(--fw-semibold); color: var(--primary); }

/* ---------------------------------------------------------------------------
   FORM
   --------------------------------------------------------------------------- */
.field { display: grid; gap: var(--space-2); }
.label { font-size: var(--fs-caption); font-weight: var(--fw-semibold); color: var(--text); }
.label .req { color: var(--accent-text); }
.input, .textarea, .select {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: var(--fs-body);
  background: var(--surface);
  color: var(--text);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--color-slate-400); }
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--color-petrol-500);
  box-shadow: 0 0 0 4px rgba(31,99,96,.12);
}
.input:focus-visible { box-shadow: 0 0 0 4px rgba(31,99,96,.12); }
.textarea { min-height: 7rem; resize: vertical; }
.field__hint { font-size: var(--fs-micro); color: var(--text-muted); }
.checkbox-row { display: grid; grid-template-columns: auto 1fr; gap: var(--space-3); align-items: start; }
.checkbox-row input { width: 1.15rem; height: 1.15rem; margin-top: 2px; accent-color: var(--primary); }

/* ---------------------------------------------------------------------------
   FOOTER
   --------------------------------------------------------------------------- */
.site-footer { background: var(--primary-deep); color: var(--on-dark); padding-block: var(--space-8) var(--space-6); }
.site-footer a { color: var(--on-dark-muted); transition: color var(--dur) var(--ease-out); }
.site-footer a:hover { color: var(--color-white); }
.site-footer__cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-6); }
@media (max-width: 768px) { .site-footer__cols { grid-template-columns: 1fr 1fr; } }
.footer-head { font-size: var(--fs-micro); text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--color-orange-400); font-weight: var(--fw-bold); margin-bottom: var(--space-3); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between; align-items: center; margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid rgba(255,255,255,.10); font-size: var(--fs-caption); color: var(--on-dark-muted); }

/* ---------------------------------------------------------------------------
   WHATSAPP FAB
   --------------------------------------------------------------------------- */
.fab {
  display: inline-grid; place-items: center;
  width: 3.5rem; height: 3.5rem; border-radius: var(--radius-full);
  background: #25D366; color: #fff; border: none; cursor: pointer;
  box-shadow: 0 12px 28px -8px rgba(37,211,102,.55), var(--shadow-2);
  transition: transform var(--dur) var(--ease-out);
}
.fab:hover { transform: translateY(-2px) scale(1.03); }
.fab svg { width: 1.85rem; height: 1.85rem; }