/* ================================================= */
/* =============== VARIABLEN ======================= */
/* ================================================= */

:root {
  --column-gap: clamp(3rem, 6vw, 6rem);
  --row-gap: clamp(4rem, 8vw, 7rem);

  --text-gap-xs: 0.5rem;
  --text-gap: 1.5rem;
  --line-gap: 0.7rem;
  --desc-width: 42ch;

  --bts-height: 360px;
  --bts-visible: 3;
  --arrow-size: 44px;
  --arrow-bg: rgba(230,230,230,0.85);
}

/* ================================================= */
/* =================== HEADER ====================== */
/* ================================================= */

.header {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  background: var(--color-white);
  color: var(--color-black);
  padding: clamp(1rem, 6vw, 6rem) 0;
}

.header_inner {
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--page-padding);
  display: grid;
  grid-template-columns: auto 1fr auto;
  column-gap: clamp(1rem, 6vw, 6rem);
  align-items: baseline;
}

.header_brand {
  margin: 0;
}

.header_claim {
  margin: 0;
  padding-top: 0;
}

.header_contact {
  transform: translateY(0.15rem);
}

/* ================================================= */
/* ========== PROJEKTÜBERSICHT ===================== */
/* ================================================= */

.projects {
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--page-padding);
  padding-block: var(--row-gap);
  column-count: 3;
  column-gap: var(--column-gap);
}

.project-card {
  break-inside: avoid;
  margin-bottom: var(--row-gap);
}

.project-media {
  background: var(--color-gray);
}

.project-media img {
  width: 100%;
  height: auto;
}

.project-text {
  padding-top: var(--text-gap-xs);
}

.project-title {
  margin: 0 0 0.2rem;
}

.project-desc {
  max-width: var(--desc-width);
  margin: 0;
}

/* ================================================= */
/* ========== FULL-BLEED SEKTIONEN ================= */
/* ================================================= */

.about,
.feature,
.bts {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  column-span: all;
}

/* ================================================= */
/* ========== ÜBER MICH ============================ */
/* ================================================= */

.about {
  padding: clamp(3rem, 8vw, 6rem) var(--page-padding);
  background: var(--color-white);
  color: var(--color-black);
}

.about_inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.about_media img {
  width: 100%;
  height: auto;
}

.about_title {
  margin-bottom: 0.75rem;
}

.about_desc {
  max-width: 45ch;
}

.about_link {
  display: inline-block;
  margin-top: 1.25rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ================================================= */
/* ================= FEATURE ======================= */
/* ================================================= */

.feature {
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.feature_link {
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--page-padding);
  display: block;
}

.feature_text {
  padding-top: var(--text-gap);
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--column-gap);
  align-items: baseline;
}

.feature_title { margin: 0; }

.feature_desc {
  margin: 0;
  max-width: 55ch;
}

.feature_meta {
  margin: 0;
  justify-self: end;
  text-align: right;
  font-style: normal;
}

.feature_meta{
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

/* =============================
   Lieblingsprojekt Herzen
   ============================= */

.feature_meta{
  margin: 0;
  justify-self: end;
  text-align: right;
  font-style: normal;

  display: inline-flex;
  align-items: center;
  gap: 0.35rem;

  cursor: pointer;
  user-select: none;
}

.feature_hearts{
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.feature_heart{
  --icon-size: 1.5rem;
  width: var(--icon-size);
  height: var(--icon-size);
  flex: 0 0 var(--icon-size);

  background-image: url("/pictures/icons/herz.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;

  opacity: 1;
  transform: scale(1);
  transition: opacity 180ms ease, transform 180ms ease;
}

.feature_heart.is-fading{
  opacity: 0;
  transform: scale(0.7);
}


/* ================================================= */
/* ========== BTS ================================= */
/* ================================================= */

.bts {
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.bts_carousel { position: relative; }
.bts_viewport { overflow: hidden; width: 100%; }

.bts_track {
  display: flex;
  align-items: center;
  gap: 0;
  will-change: transform;
}

.bts_item {
  flex: 0 0 auto;
  height: var(--bts-height);
}

.bts_item img {
  height: 100%;
  width: auto;
  display: block;
}

/* Arrow buttons without background */
.bts_prev,
.bts_next{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  z-index:3;

  border:none;
  background:none;
  padding:0;
  cursor:pointer;

  display:flex;
  align-items:center;
  justify-content:center;
}

/* Icon size */
.bts_prev img,
.bts_next img{
  width:34px;
  height:auto;
  pointer-events:none;
  user-select:none;
}

/* LEFT arrow = rotate icon */
.bts_prev img{
  transform:rotate(180deg);
}

/* positions */
.bts_prev{ left:var(--carousel-arrow-offset); }
.bts_next{ right:var(--carousel-arrow-offset); }

@media (hover:hover){
  .bts_prev:hover img,
  .bts_next:hover img{
    filter:
      drop-shadow(0 0 3px rgba(0,0,0,1))
      drop-shadow(0 0 12px rgba(0,0,0,0.9))
      drop-shadow(0 0 30px rgba(0,0,0,0.7));
  }
}


.bts_prev img,
.bts_next img{
  filter:
    drop-shadow(0 0 2px rgba(0,0,0,0.9))   /* harte Outline */
    drop-shadow(0 0 6px rgba(0,0,0,0.8))   /* mittlerer Kontrast */
    drop-shadow(0 0 16px rgba(0,0,0,0.6)); /* weicher Halo */
}




/* Meta */

.bts_meta {
  max-width: var(--container);
  margin: 1.5rem auto 0;
  padding-inline: var(--page-padding);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: baseline;
}

.bts_more {
  justify-self: end;
  font-size: var(--s);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ================================================= */
/* =================== FOOTER ====================== */
/* ================================================= */

.footer {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  background: var(--color-white);
 padding-top: clamp(1rem, 6vw, 4rem);
 padding-bottom: clamp(0.6rem, 1.2vw, 1.4rem);


}

.footer_inner {
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--page-padding);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  position: relative;
}

.footer_brand { margin: 0; }

.footer_top{
  position: absolute;
  right: var(--page-padding);
  top: 0.1rem;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.footer_top img{
  height: 1.2rem;
  width: auto;
  display: block;
}

.footer_top:hover{ opacity: 0.7; }


.footer_right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  color: var(--color-black);
  font-size: var(--s);
  line-height: 1.6;
}

.footer_inner{
  position: relative;
}

/* Impressum unten mittig */
.footer_impressum{
  width:100%;
  text-align:center;

  font-size:0.75rem;
  opacity:0.4;

  margin-top:5rem;
}

/* Links nebeneinander */
.footer_impressum a{
  margin:0 10px;
}

/* Abstand zum Copyright */
.footer_impressum p{
  margin-top:6px;
}




/* ================================================= */
/* ================= BREAKPOINTS =================== */
/* ================================================= */

/* DESKTOP SMALL */
@media (max-width: 1100px) {
  .projects {
    column-count: 2;
    padding-inline: var(--page-padding);
  }
}

/* TABLET */
@media (max-width: 900px) {


  .header_inner {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand contact"
      "claim claim";
    row-gap: 0.35rem;
    align-items: start;
  }

  .header_brand { grid-area: brand; }
  .header_contact { grid-area: contact; transform: none; }
  .header_claim { grid-area: claim; }

  .about_inner { grid-template-columns: 1fr; }

  .feature_text {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .feature_meta {
    justify-self: end;
    text-align: right;
    margin-top: 4rem;
  }

  :root {
    --bts-height: 300px;
    --bts-visible: 2;
  }

  .bts_meta { grid-template-columns: 1fr; }

  .bts_more {
    justify-self: end;
    text-align: right;
    margin-top: 3rem;
    margin-bottom: 3rem;
  }

  .bts_prev { left: 1rem; }
  .bts_next { right: 1rem; }



  .header_inner{
    padding-inline: var(--page-padding);
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.5rem;
  }

  .header_claim{
    margin: 0;
  }

  .project-card{ margin-bottom: 6rem; }

  p{
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .about_title{ margin: 0; }
  .about_desc{ margin: 0; }

  .about_link{
    display: block;
    margin-left: auto;
    width: fit-content;
    margin-top: 3rem;
  }

  :root{ --section-gap: 6rem; }

  .about{ padding-bottom: var(--section-gap) !important; }
  .feature{ padding-top: var(--section-gap) !important; }
}

/* PHONE */
@media (max-width: 640px) {
  .projects {
    column-count: 1;
    padding-inline: var(--page-padding);
  }

  :root {
    --bts-height: 220px;
    --bts-visible: 1;
  }

  .footer_inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer_right {
    align-items: flex-end;
    text-align: right;
  }

  .header_inner{
    padding-inline: var(--page-padding);
  }
}

/* TOUCH DEVICES */
@media (hover: none) and (pointer: coarse){

  .bts_prev,
  .bts_next{
    display: none !important;
  }

  .bts_viewport{
  position: relative;

  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;

  touch-action: pan-x; /* statt pan-y */
}

.bts_track{
  transform: none !important;
  width: max-content; /* damit der Track so breit wie der Inhalt sein darf */
}




  
}