/* ==========================================================================
   Components — Treppenidee Redesign
   Mobile-first: base = mobile, media queries in responsive.css
   ========================================================================== */

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--font-size-body);
  font-family: inherit;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), transform var(--transition);
}

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

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

.btn--secondary {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

.btn--accent {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--accent:hover {
  background: #9A7209;
}

.btn--large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

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

.btn--white:hover {
  background: var(--color-bg-alt);
}

/* ---- Cards ---- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.card__content {
  padding: 1.5rem;
}

.card__title {
  font-size: var(--font-size-h3);
  margin-bottom: 0.5rem;
}

.card__text {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.card__link {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: none;
}

.card__link::after {
  content: ' \2192';
}

/* ---- Trust Bar ---- */
.trust-bar {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 1rem 0;
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: var(--font-size-small);
}

.trust-bar__icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ---- CTA Banner ---- */
.cta-banner {
  background: var(--color-primary-dark);
  color: var(--color-white);
  text-align: center;
  padding: 4rem 1.5rem;
}

.cta-banner__title {
  font-size: var(--font-size-h2);
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.cta-banner__subtitle {
  opacity: 0.9;
  margin-bottom: 2rem;
  font-size: 1.125rem;
}

.cta-banner__actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  flex-direction: column;
}

.cta-banner__phone {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
}

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background-size: cover;
  background-position: center;
  color: var(--color-white);
  text-align: center;
  padding: 6rem 1.5rem 4rem;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.2) 50%,
    rgba(0, 0, 0, 0.3) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__title {
  color: var(--color-white);
  font-size: var(--font-size-h1);
  margin-bottom: 1rem;
}

.hero__subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-inline: auto;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  flex-direction: column;
  align-items: center;
}

.hero--half {
  min-height: 50vh;
}

/* ---- Masonry Grid ---- */
.masonry {
  columns: 1;
  column-gap: 1rem;
}

.masonry__item {
  break-inside: avoid;
  margin-bottom: 1rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.masonry__item img {
  width: 100%;
  display: block;
  transition: transform 0.3s;
}

.masonry__item:hover img {
  transform: scale(1.05);
}

.masonry__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  color: var(--color-white);
  opacity: 0;
  transition: opacity var(--transition);
}

.masonry__item:hover .masonry__overlay {
  opacity: 1;
}

/* ---- Process Steps ---- */
.steps {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2rem;
  position: relative;
}

.step {
  text-align: center;
  flex: 1;
  position: relative;
}

.step__number {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.step__title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.step__text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
}

/* ---- Feature Grid ---- */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.feature {
  text-align: center;
  padding: 2rem;
}

.feature__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  color: var(--color-accent);
}

.feature__title {
  font-size: var(--font-size-h3);
  margin-bottom: 0.5rem;
}

.feature__text {
  color: var(--color-text-light);
}

/* ---- Before/After Slider ---- */
.ba-slider {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: ew-resize;
}

.ba-slider__before,
.ba-slider__after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.ba-slider__before img,
.ba-slider__after img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ba-slider__after {
  clip-path: inset(0 50% 0 0);
}

.ba-slider__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-white);
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
  z-index: 2;
  left: 50%;
  transform: translateX(-50%);
}

.ba-slider__handle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.3);
}

.ba-slider__label {
  position: absolute;
  padding: 0.5rem 1rem;
  background: rgba(0, 0, 0, 0.6);
  color: var(--color-white);
  font-size: var(--font-size-small);
  border-radius: var(--radius);
  z-index: 3;
}

.ba-slider__label--before {
  bottom: 1rem;
  left: 1rem;
}

.ba-slider__label--after {
  bottom: 1rem;
  right: 1rem;
}

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.lightbox--open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox__image {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
}

.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 3rem;
  height: 3rem;
  color: var(--color-white);
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition);
}

.lightbox__close:hover {
  opacity: 0.7;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-white);
  font-size: 2rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  width: 3rem;
  height: 3rem;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox__nav--prev {
  left: 1rem;
}

.lightbox__nav--next {
  right: 1rem;
}

.lightbox__caption {
  position: absolute;
  bottom: 1rem;
  text-align: center;
  color: var(--color-white);
  width: 100%;
  padding: 0 1.5rem;
}

/* ---- Forms ---- */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: var(--font-size-small);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: var(--font-size-body);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--color-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(92, 64, 51, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.form-checkbox input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-small);
  margin-top: 0.25rem;
  display: none;
}

.form-group--error .form-input,
.form-group--error .form-textarea,
.form-group--error .form-select {
  border-color: var(--color-error);
}

.form-group--error .form-error {
  display: block;
}

.form-success {
  text-align: center;
  padding: 3rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
}

/* ---- Image Hover ---- */
.img-hover {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.img-hover img {
  width: 100%;
  display: block;
  transition: transform 0.3s;
}

.img-hover:hover img {
  transform: scale(1.05);
}

.img-hover__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}

.img-hover:hover .img-hover__overlay {
  opacity: 1;
}

.img-hover__text {
  color: var(--color-white);
  font-weight: 600;
}

/* ---- Section Headers ---- */
.section__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section__title {
  margin-bottom: 0.75rem;
}

.section__subtitle {
  color: var(--color-text-light);
  font-size: 1.125rem;
}

/* ---- Scroll Animations ---- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s, transform 0.6s;
}

.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}