/* Wiederkehrende Bausteine – Header, Footer, Buttons, Cards, Formulare */

/* --- Header / Navigation --- */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding-block: var(--space-4);
  background-color: rgba(10, 10, 11, 0.7);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), padding-block var(--dur-base) var(--ease-out),
    background-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  padding-block: var(--space-3);
  background-color: rgba(10, 10, 11, 0.88);
  box-shadow: 0 12px 30px -18px rgba(0, 0, 0, 0.6);
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

.site-header .container {
  /* 3-Zonen-Grid: die äußeren Spuren sind gleich breit (1fr/1fr), dadurch
     sitzt die mittlere Gruppe (Logo + Nav) automatisch zentriert mit
     symmetrischem Freiraum links/rechts. */
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-6);
}

.header-group {
  /* Logo und Nav als eine sichtbar zusammengehörige Einheit statt zweier
     durch justify-content auseinandergerissener Blöcke. min-width:
     max-content verhindert, dass die Grid-Spalte die Gruppe unter ihre
     natürliche Breite quetscht (sonst können einzelne Nav-Links wie
     "Über mich" mitten im Wort/zwischen den Wörtern umbrechen). */
  display: flex;
  align-items: center;
  gap: var(--space-6);
  min-width: max-content;
  /* Ohne explizite Platzierung würde Grid-Auto-Placement die Gruppe in
     Spalte 1 (links) setzen, da .nav-toggle auf Desktop display:none ist
     und so kein zweites Element mehr "nachrückt". */
  grid-column: 2;
}

.header-divider {
  width: 1px;
  height: 24px;
  background: var(--color-border-strong);
  flex-shrink: 0;
}

@media (max-width: 860px) {
  .header-divider {
    display: none;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.brand__logo {
  height: 48px;
  width: auto;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-base);
  letter-spacing: -0.01em;
}

.brand__name span {
  color: var(--color-vermillion-light);
}

.nav {
  display: flex;
  align-items: center;
}

.nav__list {
  display: flex;
  gap: var(--space-6);
}

.nav__link {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  padding-block: var(--space-2);
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--color-text);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-glaucous-light);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-pill);
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}

@media (max-width: 860px) {
  .site-header .container {
    /* Zurück zu einer einfachen Zeile: Logo links, Toggle rechts. Das
       Desktop-Grid (mit .header-group als mittlerem Grid-Item) würde hier
       keinen Sinn ergeben, da .nav im mobilen Zustand ohnehin per
       position:fixed aus dem normalen Layout herausgelöst ist. */
    display: flex;
    justify-content: space-between;
  }

  .nav {
    position: fixed;
    top: 72px;
    right: 0;
    left: 0;
    height: calc(100dvh - 72px);
    background: var(--color-bg);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: var(--space-8) var(--space-5);
    gap: var(--space-8);
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease-out);
    overflow-y: auto;
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    gap: var(--space-2);
  }

  .nav__link {
    position: relative;
    display: block;
    font-size: var(--fs-xl);
    padding-block: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    transition: color var(--dur-fast) var(--ease-out), padding-left var(--dur-base) var(--ease-out);
  }

  .nav__link::after {
    display: none;
  }

  .nav__link[aria-current="page"] {
    padding-left: var(--space-5);
  }

  .nav__link[aria-current="page"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    translate: 0 -50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gradient-brand);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.9em 1.7em;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-image: var(--gradient-sheen), var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-glow-red);
}

.btn--primary:hover {
  box-shadow: 0 10px 28px -8px rgba(20, 6, 10, 0.55), 0 4px 14px -3px rgba(227, 66, 52, 0.45);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn--ghost:hover {
  border-color: var(--color-glaucous-light);
  background: rgba(96, 130, 182, 0.08);
}

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

.btn[disabled] {
  opacity: 0.6;
  pointer-events: none;
}

/* --- Cards --- */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.service-card {
  --accent: var(--color-vermillion);
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  overflow: hidden;
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--accent);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
}

.service-card__icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
  margin-bottom: var(--space-5);
}

.service-card__icon svg {
  width: 24px;
  height: 24px;
}

.service-card h3 {
  margin-bottom: var(--space-3);
}

.service-card__list {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-card__list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.service-card__list li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  transform: translateY(-3px);
}

/* --- Stats --- */

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.stat {
  text-align: center;
}

.stat::before {
  content: "";
  display: block;
  width: 32px;
  height: 3px;
  margin: 0 auto var(--space-4);
  background: var(--accent, var(--color-vermillion));
  border-radius: var(--radius-pill);
}

.stat__value {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  line-height: 1;
}

.stat__label {
  margin-top: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-text-faint);
  line-height: var(--lh-snug);
}

@media (max-width: 640px) {
  .stats {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}

/* --- Badges / Tags --- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35em 0.9em;
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.03em;
  background: color-mix(in srgb, var(--accent, var(--color-vermillion)) 20%, transparent);
  color: var(--accent, var(--color-vermillion-light));
}

/* --- Formulare --- */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.field label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
}

.field .hint {
  font-size: var(--fs-xs);
  color: var(--color-text-faint);
}

.field input,
.field select,
.field textarea {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: 0.85em 1em;
  font-size: var(--fs-base);
  color: var(--color-text);
  transition: border-color var(--dur-fast) var(--ease-out);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-glaucous-light);
}

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9'%3E%3Cpath d='M1 1l6 6 6-6' stroke='%23a6a6ac' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1em center;
  padding-right: 2.5em;
}

.field textarea {
  resize: vertical;
  min-height: 9rem;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.checkbox-field input {
  margin-top: 0.3em;
  width: 18px;
  height: 18px;
  accent-color: var(--color-vermillion);
  flex-shrink: 0;
}

.checkbox-field label {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.checkbox-field a {
  color: var(--color-glaucous-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-status {
  margin-top: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status--success {
  background: rgba(96, 130, 182, 0.14);
  border: 1px solid rgba(96, 130, 182, 0.4);
  color: #cfe0ff;
}

.form-status--error {
  background: rgba(227, 66, 52, 0.14);
  border: 1px solid rgba(227, 66, 52, 0.4);
  color: #ffd3ce;
}

/* --- CTA-Band --- */

.cta-band {
  background: var(--gradient-brand-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cta-band__inner {
  text-align: center;
  max-width: 40rem;
}

.cta-band__inner h2 {
  margin-bottom: var(--space-4);
}

.cta-band__inner .btn {
  margin-top: var(--space-6);
}

/* --- Footer --- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-10) var(--space-8);
  background: var(--color-bg-elevated);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand p {
  margin-top: var(--space-4);
  max-width: 26rem;
  font-size: var(--fs-sm);
}

.footer-col h3 {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col ul.footer-nav-grid {
  display: grid;
  grid-template-columns: repeat(2, auto);
  grid-template-rows: repeat(3, auto);
  grid-auto-flow: column;
  column-gap: var(--space-6);
}

.footer-col a {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  transition: color var(--dur-fast) var(--ease-out);
}

.footer-col a:hover {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-text-faint);
}

.footer-bottom__links {
  display: flex;
  gap: var(--space-5);
}

@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}