/* ==========================================================================
   Aleksandra Dubiel — Portfolio
   Pionowy scroll = nawigacja główna (jedna strona = jeden rozdział/element).
   Poziomy gest = przełączanie WEWNĄTRZ rozdziału (Biogram, Rysunek,
   Grafika, Wizualizacje) między jego pozycjami — ta sama karuzela wszędzie.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Jost:wght@300;400;500&family=Herr+Von+Muellerhoff&display=swap');

@font-face{
  font-family: 'Rotis Sans Serif';
  src: url('assets/fonts/RotisSansSerif.woff2') format('woff2'),
       url('assets/fonts/RotisSansSerif.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face{
  font-family: 'Bastliga One';
  src: url('assets/fonts/Bastliga_One.woff2') format('woff2'),
       url('assets/fonts/Bastliga_One.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root{
  --ink: #111111;
  --paper: #ffffff;
  --grey: #8a8a8a;
  --hairline: rgba(17,17,17,0.14);
  --gutter: clamp(24px, 5vw, 72px);
  --font-ui: 'Rotis Sans Serif', 'Jost', 'Helvetica Neue', Arial, sans-serif;
  --font-script: 'Bastliga One', 'Herr Von Muellerhoff', cursive;
  --dur: 380ms;
}

*{ box-sizing: border-box; }

html{
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}
html, body{
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

img{ display:block; max-width:100%; }

/* ----------------------------------------------------------------------- */
/* Section — jeden ekran, jeden punkt zatrzymania scrolla                   */
/* ----------------------------------------------------------------------- */

.section{
  min-height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display:flex;
  align-items:center;
  justify-content:center;
  position: relative;
  padding: 56px var(--gutter);
  opacity: 0;
  transition: opacity 650ms ease;
}
.section.in-view{
  opacity: 1;
}

@media (prefers-reduced-motion: reduce){
  .section{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

/* ----------------------------------------------------------------------- */
/* Typography primitives                                                    */
/* ----------------------------------------------------------------------- */

.label{
  font-size: 14px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  font-weight: 400;
}
.eyebrow{
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  margin-bottom: 22px;
  display:block;
}
.body-copy{
  font-size: 15px;
  line-height: 1.85;
  font-weight: 300;
  max-width: 32ch;
}
.caption{
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  text-align: center;
}
.caption .meta{
  display:block;
  margin-top: 6px;
  color: var(--grey);
  letter-spacing: 0.14em;
  text-transform: none;
  font-size: 11px;
}

/* ----------------------------------------------------------------------- */
/* Cover                                                                    */
/* ----------------------------------------------------------------------- */

.section--cover{ flex-direction: column; gap: 34px; }
.section--cover .year{ font-size: clamp(8px, 2vw, 12px); letter-spacing: 0.34em; }
.section--cover .art{ position: relative; width: min(86vw, 86vh); height: min(46vw, 46vh); }
.section--cover .art img{ width:100%; height:100%; object-fit: cover; }
.section--cover .wordmark{
  position: absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  font-size: clamp(60px, 12vw, 122px);
  letter-spacing: 0.09em;
  font-weight: 500;
  mix-blend-mode: difference;
  filter: invert(1);
  color: var(--ink);
  white-space: nowrap;
}
.section--cover .sig{ font-family: var(--font-script); font-size: clamp(45px, 6vw, 60px); transform: translateX(-15px); }

/* ----------------------------------------------------------------------- */
/* Wprowadzenie                                                             */
/* ----------------------------------------------------------------------- */

.section--intro{ padding: 0; }
.section--intro .media{ position: absolute; inset: 0; overflow:hidden; }
.section--intro .media img{ width:100%; height:100%; object-fit: cover; }
.section--intro .tagline{
  position: relative;
  z-index: 2;
  text-align:center;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.7;
  padding: 0 24px;
  color: #fff;
  mix-blend-mode: difference;
  transform: translateY(-140px);
}

/* ----------------------------------------------------------------------- */
/* Divider (Biogram / Galeria / Rysunek / Grafika / Wizualizacje / Kontakt) */
/* ----------------------------------------------------------------------- */

.section--divider{ flex-direction: column; gap: 26px; }
.section--divider .thumb{ width: min(40vw, 320px); height: min(40vw, 320px); overflow:hidden; }
.section--divider .thumb img{ width:100%; height:100%; object-fit: cover; }

/* ----------------------------------------------------------------------- */
/* Karuzela — jeden komponent używany przez każdy rozdział z treścią       */
/* ----------------------------------------------------------------------- */

.section--carousel-chapter{ padding-left: 0; padding-right: 0; }

.carousel{ position: relative; display:flex; flex-direction:column; align-items:center; }
.carousel-viewport{ overflow:hidden; width: 100%; }
.carousel-track{ display:flex; transition: transform var(--dur) ease; }
.carousel-track > .slide{
  flex: 0 0 100%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap: 22px;
  padding: 0 var(--gutter);
}
.carousel-dots{ display:flex; justify-content:center; gap:6px; margin-top: 22px; }
.carousel-dots span{ width:5px; height:5px; border-radius:50%; background: var(--hairline); }
.carousel-dots span.active{ background: var(--ink); }

.carousel-arrow{
  position:absolute; top:50%; transform: translateY(-50%);
  width:40px; height:40px;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; opacity:.55;
  transition: opacity .2s ease;
  z-index: 3;
}
.carousel-arrow:hover{ opacity: 1; }
.carousel-arrow svg{ width:15px; height:15px; stroke: var(--ink); stroke-width:1.2; fill:none; }
.carousel-arrow.prev{ left: 6px; }
.carousel-arrow.next{ right: 6px; }

/* --- carousel--split (Biogram: O mnie / Edukacja) --- */
.carousel--split{ width: 100%; max-width: 1100px; }
.split-row{ display:flex; align-items:flex-end; gap: clamp(40px, 6vw, 100px); }
.split-row.reverse{ flex-direction: row-reverse; }
.split-row .photo{
  flex: 0 0 auto;
  width: clamp(220px, 26vw, 400px);
  height: clamp(280px, 34vw, 480px);
  overflow:hidden;
}
.split-row .photo img{ width:100%; height:100%; object-fit: cover; }
.split-row .text{ flex: 1; max-width: 380px; }
.split-row.reverse .text{ text-align: right; margin-left:auto; }
.split-row.reverse .eyebrow{ text-align:right; }

@media (max-width: 760px){
  .split-row, .split-row.reverse{
    flex-direction: column;
    align-items:center;
    gap: 20px;
    text-align:center;
  }
  .split-row .text, .split-row.reverse .text{ text-align:center; max-width: 300px; margin:0 auto; }
  .split-row .eyebrow, .split-row.reverse .eyebrow{ text-align:center; }
  .split-row .photo{ width: min(280px, 58vw); height: clamp(200px, 36vh, 340px); }
}

/* --- carousel--trio (Rysunek artystyczny) --- */
.carousel--trio{ width: 100%; max-width: 900px; }
.trio-row{ display:flex; gap: clamp(16px, 2.4vw, 40px); justify-content:center; }
.trio-frame{
  width: clamp(120px, 15vw, 220px);
  height: clamp(160px, 20vw, 300px);
  overflow:hidden;
  box-shadow: 0 1px 0 rgba(17,17,17,0.08);
}
.trio-frame img{ width:100%; height:100%; object-fit: cover; }

@media (max-width: 760px){
  .trio-row{ gap: 10px; }
  .trio-frame{ width: 26vw; height: 35vw; }
}

/* --- carousel--media (Grafika wydawnicza / Wizualizacje wnętrz) --- */
.carousel--media{ width: 100%; max-width: 720px; }
.carousel--media .frame{
  width: min(50vw, 520px);
  max-height: 58vh;
  overflow:hidden;
  cursor: zoom-in;
  display:flex; align-items:center; justify-content:center;
}
.carousel--media .frame img{ width:100%; height:auto; max-height:58vh; object-fit: contain; }
.carousel--media .hint{
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{ opacity:.25; } 50%{ opacity:.75; } }
@media (prefers-reduced-motion: reduce){ .carousel--media .hint{ animation:none; opacity:.5; } }

@media (max-width: 760px){
  .carousel--media .frame{ width: 74vw; }
}

/* ----------------------------------------------------------------------- */
/* Lightbox                                                                 */
/* ----------------------------------------------------------------------- */

.lightbox{
  position: fixed; inset:0;
  background: rgba(0,0,0,0.92);
  display:flex; align-items:center; justify-content:center;
  z-index: 100;
  opacity:0; visibility:hidden; pointer-events:none;
  transition: opacity 300ms ease;
  padding: 5vw;
}
.lightbox.open{ opacity:1; visibility:visible; pointer-events:auto; }
.lightbox img{
  max-width: 90vw; max-height: 90vh;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  cursor: zoom-out;
  transition: opacity 250ms ease;
}

/* ----------------------------------------------------------------------- */
/* Contact (Email)                                                          */
/* ----------------------------------------------------------------------- */

.section--contact{ padding:0; }
.section--contact .bg{ position:absolute; inset:0; overflow:hidden; }
.section--contact .bg img{ width:100%; height:100%; object-fit: cover; object-position: center 30%; }
.section--contact a{
  position: relative; z-index: 2;
  color:#fff;
  mix-blend-mode: difference;
  text-decoration: none;
  font-size: clamp(12px, 2.5vw, 16px);
  letter-spacing: 0.28em;
  border-bottom: 1px solid transparent;
  padding-bottom: 6px;
  transition: border-color 220ms ease, opacity 220ms ease;
}
.section--contact a:hover{ border-color: rgba(255,255,255,0.4); opacity:.9; }

/* ----------------------------------------------------------------------- */
/* Closing                                                                  */
/* ----------------------------------------------------------------------- */

.section--closing{ flex-direction: column; gap: clamp(16px, 3vh, 32px); }
.section--closing .sig{ font-family: var(--font-script); font-size: clamp(38px, 6vw, 58px); }
.section--closing .rule{ width: min(30vw, 320px); height: 1px; background: var(--ink); opacity:.7; }
.section--closing .tagline{ font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--grey); }
.section--closing .year{ font-size: 12px; letter-spacing: 0.3em; }

/* ----------------------------------------------------------------------- */
/* Chrome — licznik + pasek postępu                                        */
/* ----------------------------------------------------------------------- */

.chrome-top{
  position: fixed; top:0; right:0;
  padding: 24px var(--gutter);
  z-index: 20;
  mix-blend-mode: difference;
  pointer-events: none;
}
.chrome-top .counter{
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #fff;
  opacity: .85;
}

.chrome-bottom{
  position: fixed; left:0; right:0; bottom:0;
  padding: 0 var(--gutter) 24px;
  z-index: 20;
  mix-blend-mode: difference;
}
.progress{ display:flex; gap:6px; max-width: 620px; margin: 0 auto; }
.seg{ flex:1; height:1px; background: rgba(255,255,255,0.35); position:relative; cursor:pointer; }
.seg::after{ content:''; position:absolute; inset:-8px 0; }
.seg .fill{ position:absolute; inset:0; width:0%; background:#fff; transition: width 300ms ease; }
.seg.done .fill, .seg.current .fill{ width:100%; }