/* ==========================================================================
   Components
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 16px 28px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition:
    color var(--duration-sm) var(--ease-standard),
    background-color var(--duration-sm) var(--ease-standard),
    border-color var(--duration-sm) var(--ease-standard),
    transform var(--duration-xs) var(--ease-standard);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.985);
}

/* Primary (Oak) — for light backgrounds */
.btn--primary {
  background-color: var(--color-oak-deep);
  color: var(--color-paper);
}

.btn--primary:hover {
  background-color: var(--color-anthracite);
}

/* Primary (Brass) — for dark backgrounds / hero */
.btn--brass {
  background-color: var(--color-brass);
  color: var(--color-oak-deep);
}

.btn--brass:hover {
  background-color: var(--color-brass-light);
}

/* Secondary (Ghost) */
.btn--ghost {
  background-color: transparent;
  color: var(--color-oak-deep);
  border-color: var(--color-oak-deep);
}

.btn--ghost::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--color-oak-deep);
  transform: translateX(-101%);
  transition: transform var(--duration-md) var(--ease-precise);
  z-index: -1;
}

.btn--ghost:hover {
  color: var(--color-paper);
  border-color: var(--color-oak-deep);
}

.btn--ghost:hover::before {
  transform: translateX(0);
}

/* Ghost on dark */
.btn--ghost-light {
  background-color: transparent;
  color: var(--color-paper);
  border-color: var(--color-paper);
}

.btn--ghost-light::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: rgba(245, 241, 234, 0.12);
  transform: translateX(-101%);
  transition: transform var(--duration-md) var(--ease-precise);
  z-index: -1;
}

.btn--ghost-light:hover::before {
  transform: translateX(0);
}

.btn--lg {
  padding: 20px 36px;
  font-size: 1rem;
}

.btn .btn__arrow {
  display: inline-block;
  transition: transform var(--duration-sm) var(--ease-standard);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* ---------- Text Link ---------- */
.tlink {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: inherit;
  border-bottom: 1px solid var(--color-brass);
  padding-bottom: 2px;
  transition: color var(--duration-sm) var(--ease-standard);
  font-weight: 500;
}

.tlink:hover {
  color: var(--color-brass);
}

.tlink .tlink__arrow {
  display: inline-block;
  transition: transform var(--duration-sm) var(--ease-standard);
}

.tlink:hover .tlink__arrow {
  transform: translateX(4px);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding-block: var(--space-6);
  transition:
    background-color var(--duration-md) var(--ease-standard),
    border-color var(--duration-md) var(--ease-standard),
    padding var(--duration-md) var(--ease-standard);
  border-bottom: 1px solid transparent;
}



.nav--scrolled {
  background-color: var(--color-anthracite-96);
  border-bottom-color: rgba(245, 241, 234, 0.08);
  padding-block: var(--space-5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav__logo {
  display: block;
  flex-shrink: 0;
  line-height: 0;
}

/* Logo-Bild als Background mit präzisem Crop:
   Originalbild ist 3:2 (1.5:1) mit dem Logo-Inhalt nur in den oberen ~45%.
   Wir croppen auf die obere Hälfte → effektives Display-Aspect ~3.3:1. */
/* Nav-Logo: Bild 1024×576px, schwarzer Hintergrund (passt zu dunkler Nav).
   Logo-Inhalt sitzt in oberen ~70% des Bildes (Y: 48–400).
   Wir zeigen das Bild 220px breit, Container-Höhe begrenzt auf ~77px
   (= 220 × 400/1024 ≈ 86px minus 48px oberer Rand = ~70px sichtbarer Inhalt).
   margin-top: -8px gleicht den kleinen oberen Schwarzrand aus. */
.nav__logo-img {
  display: block;
  width: 220px;
  flex-shrink: 0;
  margin-top: -8px;
}

@media (max-width: 767px) {
  .nav__logo-img {
    width: 180px;
  }
}

.nav__links {
  display: none;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 1024px) {
  .nav__links {
    display: flex;
  }
}

.nav__link {
  font-size: var(--text-sm);
  color: var(--color-paper);
  opacity: 0.85;
  position: relative;
  padding-block: var(--space-2);
  letter-spacing: var(--tracking-wide);
  transition: opacity var(--duration-sm) var(--ease-standard);
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-brass);
  transition: width var(--duration-md) var(--ease-precise);
}

.nav__link:hover,
.nav__link.is-active {
  opacity: 1;
}

.nav__link:hover::after,
.nav__link.is-active::after {
  width: 24px;
}

.nav__cta {
  display: none;
}

@media (min-width: 768px) {
  .nav__cta {
    display: inline-flex;
  }
}

/* Mobile menu trigger */
.nav__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-paper);
  position: relative;
}

@media (min-width: 1024px) {
  .nav__toggle {
    display: none;
  }
}

.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 1px;
  background-color: currentColor;
  position: relative;
  transition: transform var(--duration-md) var(--ease-precise);
}

.nav__toggle-bar::before,
.nav__toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 1px;
  background-color: currentColor;
  transition: transform var(--duration-md) var(--ease-precise);
}

.nav__toggle-bar::before { top: -7px; }
.nav__toggle-bar::after { top: 7px; }

.nav__toggle[aria-expanded="true"] .nav__toggle-bar {
  background-color: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar::before {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar::after {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu panel */
.nav__panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(420px, 100vw);
  background-color: var(--color-oak-deep);
  padding: 120px var(--space-8) var(--space-8);
  transform: translateX(100%);
  transition: transform var(--duration-lg) var(--ease-precise);
  z-index: calc(var(--z-nav) - 1);
  overflow-y: auto;
}

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

.nav__panel-link {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: var(--color-paper);
  padding-block: var(--space-4);
  border-bottom: 1px solid rgba(245, 241, 234, 0.08);
  transition: color var(--duration-sm) var(--ease-standard);
}

.nav__panel-link:hover {
  color: var(--color-brass);
}

.nav__panel-cta {
  margin-top: var(--space-8);
}

/* ---------- Section Heading Block ---------- */
.section-heading {
  margin-bottom: var(--space-16);
  max-width: 720px;
}

.section-heading--center {
  margin-inline: auto;
  text-align: center;
}

.section-heading__title {
  margin-bottom: var(--space-6);
}

.section-heading__intro {
  font-size: var(--text-lg);
  color: var(--color-anthracite);
  opacity: 0.85;
  line-height: var(--leading-relaxed);
}

.section--dark .section-heading__intro,
.section--anthracite .section-heading__intro {
  color: var(--color-paper);
  opacity: 0.75;
}

/* ---------- Service Card ---------- */
.service-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  cursor: default;
}

.service-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--color-limestone);
}

.service-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-lg) var(--ease-precise);
}

.service-card:hover .service-card__media img {
  transform: scale(1.04);
}

.service-card__number {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  color: var(--color-brass);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-oak-deep);
  position: relative;
  display: inline-block;
}

.service-card__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1px;
  background-color: var(--color-brass);
  transition: width var(--duration-md) var(--ease-precise);
}

.service-card:hover .service-card__title::after {
  width: 100%;
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-anthracite);
  opacity: 0.75;
  line-height: var(--leading-relaxed);
}

/* ---------- Process Step ---------- */
.process-step {
  position: relative;
  padding-top: var(--space-8);
}

.process-step__number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 400;
  color: var(--color-brass);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.process-step__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  margin-bottom: var(--space-3);
  color: var(--color-oak-deep);
}

.process-step__desc {
  font-size: var(--text-sm);
  color: var(--color-anthracite);
  opacity: 0.75;
  line-height: var(--leading-relaxed);
  max-width: 240px;
}

/* ---------- Material Row ---------- */
.material-row {
  display: grid;
  grid-template-columns: minmax(80px, 140px) 1fr;
  gap: var(--space-6);
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--color-limestone);
  align-items: baseline;
}

.material-row:last-child {
  border-bottom: 0;
}

.material-row__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-oak-deep);
}

.material-row__desc {
  font-size: var(--text-base);
  color: var(--color-anthracite);
  opacity: 0.8;
  line-height: var(--leading-relaxed);
}

/* ---------- Trust Strip ---------- */
.trust-strip {
  background-color: var(--color-paper);
  border-top: var(--border-hair);
  border-bottom: var(--border-hair);
}

.trust-strip__inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}

@media (min-width: 768px) {
  .trust-strip__inner {
    grid-template-columns: repeat(4, 1fr);
  }
}

.trust-strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-oak-deep);
  border-right: 1px solid var(--color-limestone);
  border-bottom: 1px solid var(--color-limestone);
}

.trust-strip__item:nth-child(2n) { border-right: 0; }

@media (min-width: 768px) {
  .trust-strip__item {
    border-bottom: 0;
  }
  .trust-strip__item:nth-child(2n) { border-right: 1px solid var(--color-limestone); }
  .trust-strip__item:last-child { border-right: 0; }
}

.trust-strip__icon {
  width: 22px;
  height: 22px;
  color: var(--color-brass);
  flex-shrink: 0;
  stroke-width: 1.5;
}

/* ---------- Form ---------- */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .form-row--2 {
    grid-template-columns: 1fr 1fr;
  }
}

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

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-oak-deep);
  letter-spacing: 0.01em;
}

.form-label .req {
  color: var(--color-brass);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-limestone);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-anthracite);
  transition:
    border-color var(--duration-sm) var(--ease-standard),
    box-shadow var(--duration-sm) var(--ease-standard);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-stone);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-oak-deep);
  box-shadow: 0 0 0 3px rgba(176, 134, 88, 0.15);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
  font-family: var(--font-sans);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%233A2A1E' stroke-width='1.5'><path d='M1 1.5l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 12px 8px;
  padding-right: 44px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-anthracite);
  line-height: var(--leading-normal);
  cursor: pointer;
}

.form-checkbox input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-oak-deep);
  flex-shrink: 0;
}

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

.form-status.is-success {
  display: block;
  background-color: rgba(90, 107, 74, 0.1);
  color: var(--color-success);
  border-left: 3px solid var(--color-success);
}

.form-status.is-error {
  display: block;
  background-color: rgba(140, 58, 46, 0.08);
  color: var(--color-error);
  border-left: 3px solid var(--color-error);
}

/* ---------- Mobile Sticky CTA ---------- */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-2);
  padding: var(--space-3);
  background-color: var(--color-anthracite-96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid rgba(245, 241, 234, 0.08);
  transform: translateY(100%);
  transition: transform var(--duration-md) var(--ease-precise);
}

.sticky-cta.is-visible {
  transform: translateY(0);
}

@media (min-width: 768px) {
  .sticky-cta {
    display: none !important;
  }
}

.sticky-cta .btn {
  padding: 12px 16px;
  font-size: var(--text-sm);
}