/* ==========================================================================
   IVANA FOLLOVÁ — verze „Sculpted Silk"
   Éterický temný design inspirovaný světem haute couture:
   celoplošné fotografie, tenká typografie, pomalé přechody.
   ========================================================================== */

:root {
  --ink: #0b0a09;
  --ink-soft: #14120f;
  --ivory: #ece7dd;
  --ivory-dim: rgba(236, 231, 221, 0.62);
  --ivory-faint: rgba(236, 231, 221, 0.32);
  --hairline: rgba(236, 231, 221, 0.16);
  --bronze: #a8916c;
  --serif: "Cormorant Garamond", "Times New Roman", serif;
  --sans: "Jost", "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--bronze); color: var(--ink); }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ---------- typografie ---------- */

.label {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.68rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ivory-dim);
}

.display {
  font-family: var(--serif);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: 0.01em;
}

.display em {
  font-style: italic;
  font-weight: 300;
  color: var(--bronze);
}

.lead {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  line-height: 1.5;
  color: var(--ivory);
}

.body-text {
  font-size: 0.95rem;
  color: var(--ivory-dim);
  max-width: 34rem;
}

/* ---------- hlavička ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.6rem clamp(1.4rem, 4vw, 3.5rem);
  transition: background 0.6s var(--ease), padding 0.6s var(--ease);
}

.site-header.scrolled {
  background: linear-gradient(rgba(11, 10, 9, 0.88), rgba(11, 10, 9, 0));
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.15rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  white-space: nowrap;
}

.wordmark span { color: var(--bronze); font-style: italic; text-transform: none; letter-spacing: 0.1em; }

.menu-toggle {
  appearance: none;
  background: none;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 0.68rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  padding: 0.4rem 0;
}

.menu-toggle .bars {
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
  width: 34px;
}

.menu-toggle .bars i {
  display: block;
  height: 1px;
  background: var(--ivory);
  transition: transform 0.5s var(--ease), opacity 0.4s, width 0.5s var(--ease);
}

.menu-toggle .bars i:nth-child(2) { width: 70%; align-self: flex-end; }

body.menu-open .menu-toggle .bars i:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
body.menu-open .menu-toggle .bars i:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); width: 100%; }

/* ---------- celoplošné menu ---------- */

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(8, 7, 6, 0.97);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.7s var(--ease), visibility 0s linear 0.7s;
}

body.menu-open .nav-overlay {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.7s var(--ease);
}

.nav-links {
  list-style: none;
  padding-left: clamp(1.6rem, 8vw, 7rem);
}

.nav-links li {
  overflow: hidden;
}

.nav-links a {
  display: inline-flex;
  align-items: baseline;
  gap: 1.2rem;
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
  line-height: 1.55;
  color: var(--ivory-dim);
  transform: translateY(110%);
  transition: transform 0.9s var(--ease), color 0.4s;
}

body.menu-open .nav-links a { transform: translateY(0); }

.nav-links li:nth-child(1) a { transition-delay: 0.08s; }
.nav-links li:nth-child(2) a { transition-delay: 0.14s; }
.nav-links li:nth-child(3) a { transition-delay: 0.2s; }
.nav-links li:nth-child(4) a { transition-delay: 0.26s; }
.nav-links li:nth-child(5) a { transition-delay: 0.32s; }
.nav-links li:nth-child(6) a { transition-delay: 0.38s; }
.nav-links li:nth-child(7) a { transition-delay: 0.44s; }

.nav-links a:hover, .nav-links a.active { color: var(--ivory); }
.nav-links a:hover em, .nav-links a.active em { color: var(--bronze); }
.nav-links a em { font-style: italic; transition: color 0.4s; }

.nav-visual {
  position: relative;
  height: 100%;
  overflow: hidden;
  display: none;
}

.nav-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 0.8s var(--ease), transform 1.6s var(--ease);
}

.nav-visual img.show { opacity: 0.75; transform: scale(1); }

.nav-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 7, 6, 1), rgba(8, 7, 6, 0) 40%);
}

@media (min-width: 900px) {
  .nav-visual { display: block; }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  animation: heroDrift 22s var(--ease) both;
}

@keyframes heroDrift {
  from { transform: scale(1.14); }
  to { transform: scale(1); }
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(11, 10, 9, 0.35), rgba(11, 10, 9, 0.1) 35%, rgba(11, 10, 9, 0.82) 92%);
}

.hero-inner {
  width: 100%;
  padding: 0 clamp(1.4rem, 4vw, 3.5rem) clamp(2.6rem, 6vh, 4.5rem);
}

.hero .label { display: block; margin-bottom: 1.4rem; color: var(--ivory-dim); }

.hero .display {
  font-size: clamp(3rem, 9.5vw, 7.8rem);
  max-width: 12ch;
}

.hero-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  margin-top: 2.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--hairline);
}

.hero-foot .body-text { max-width: 26rem; font-size: 0.85rem; }

.scroll-cue {
  cursor: pointer;
  font-size: 0.62rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ivory-faint);
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  white-space: nowrap;
}

.scroll-cue::after {
  content: "";
  width: 1px;
  height: 3.4rem;
  background: linear-gradient(var(--ivory-dim), transparent);
  animation: cueDrop 2.6s var(--ease) infinite;
  transform-origin: top;
}

@keyframes cueDrop {
  0% { transform: scaleY(0); opacity: 0; }
  35% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* hero podstránek sdílí plnou výšku se základním .hero */

/* ---------- obecné sekce ---------- */

section { position: relative; }

.section-pad {
  padding: clamp(5rem, 12vh, 9rem) clamp(1.4rem, 4vw, 3.5rem);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1.6rem;
  margin-bottom: clamp(2.4rem, 6vh, 4.5rem);
}

.section-head h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.9rem, 4vw, 3.1rem);
}

.section-head .rule {
  flex: 1;
  height: 1px;
  background: var(--hairline);
  align-self: center;
}

/* ---------- manifest / intro ---------- */

.manifesto {
  max-width: 62rem;
  margin: 0 auto;
  text-align: center;
}

.manifesto .label { display: block; margin-bottom: 2rem; }

.manifesto .lead { font-size: clamp(1.5rem, 3.2vw, 2.5rem); line-height: 1.42; }

.manifesto .body-text { margin: 2.4rem auto 0; text-align: center; }

/* ---------- kapitoly (dlaždice) ---------- */

.chapters { display: grid; grid-template-columns: 1fr; }

.chapter {
  position: relative;
  display: block;
  height: clamp(24rem, 72vh, 46rem);
  overflow: hidden;
}

.chapter img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.15) brightness(0.8);
  transform: scale(1.03);
  transition: transform 2s var(--ease), filter 1.2s var(--ease);
}

.chapter:hover img { transform: scale(1.1); filter: grayscale(0) brightness(0.95); }

.chapter::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(11, 10, 9, 0.15), rgba(11, 10, 9, 0.75));
  transition: background 1s var(--ease);
}

.chapter-caption {
  position: absolute;
  z-index: 2;
  inset: auto 0 0 0;
  padding: 2.2rem clamp(1.4rem, 4vw, 3rem);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.chapter-caption h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
}

.chapter-caption h3 em { font-style: italic; color: var(--bronze); }

.chapter-caption .go {
  font-size: 0.62rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  white-space: nowrap;
  transition: color 0.4s, letter-spacing 0.6s var(--ease);
}

.chapter:hover .go { color: var(--ivory); letter-spacing: 0.55em; }

@media (min-width: 900px) {
  .chapters { grid-template-columns: 1fr 1fr; }
  .chapter--wide { grid-column: 1 / -1; }
}

/* ---------- projekty (editoriální řádky) ---------- */

.project-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem clamp(2rem, 5vw, 4.5rem);
  padding: clamp(2.4rem, 6vh, 4rem) 0;
  border-top: 1px solid var(--hairline);
  align-items: center;
}

.project-row:last-child { border-bottom: 1px solid var(--hairline); }

.project-media {
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.85);
  transform: scale(1.02);
  transition: transform 1.8s var(--ease), filter 1s;
}

.project-row:hover .project-media img { transform: scale(1.09); filter: brightness(1); }

.project-copy h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.project-copy p { font-size: 0.9rem; color: var(--ivory-dim); max-width: 30rem; }

@media (min-width: 820px) {
  .project-row { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .project-row:nth-child(even) .project-media { order: 2; }
}

/* ---------- horizontální pás ---------- */

.strip-wrap { overflow: hidden; }

.strip {
  display: flex;
  gap: clamp(1rem, 2vw, 1.8rem);
  padding: 0 clamp(1.4rem, 4vw, 3.5rem);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
}

.strip::-webkit-scrollbar { display: none; }

.strip figure {
  flex: 0 0 auto;
  width: clamp(15rem, 26vw, 22rem);
  scroll-snap-align: start;
}

.strip figure:nth-child(even) { margin-top: clamp(1.5rem, 5vh, 3.5rem); }

.strip img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: brightness(0.88);
  transition: filter 0.8s;
}

.strip figure:hover img { filter: brightness(1); }

.strip figcaption {
  margin-top: 0.8rem;
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ivory-faint);
}

/* ---------- textové bloky podstránek ---------- */

.editorial {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

@media (min-width: 900px) {
  .editorial { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }
  .editorial--flip > .editorial-media { order: 2; }
}

.editorial-media { overflow: hidden; position: sticky; top: 6rem; }

.editorial-media img {
  width: 100%;
  object-fit: cover;
  filter: brightness(0.9);
}

.editorial-copy .lead { margin-bottom: 2rem; }
.editorial-copy .body-text { margin-bottom: 1.4rem; }

/* seznam služeb / programů */

.offer-list { list-style: none; }

.offer-list li {
  padding: clamp(1.8rem, 4vh, 2.6rem) 0;
  border-top: 1px solid var(--hairline);
}

.offer-list li:last-child { border-bottom: 1px solid var(--hairline); }

.offer-list h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  margin-bottom: 0.5rem;
}

.offer-list p { font-size: 0.9rem; color: var(--ivory-dim); max-width: 36rem; }

/* citát / mezisekce s pozadím */

.interlude {
  position: relative;
  min-height: 64vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
  padding: clamp(4rem, 10vh, 7rem) clamp(1.4rem, 4vw, 3.5rem);
}

.interlude img {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.42);
}

.interlude .display {
  font-size: clamp(1.9rem, 4.6vw, 3.6rem);
  max-width: 24ch;
}

.interlude .label { display: block; margin-bottom: 1.6rem; }

/* ---------- galerie ---------- */

.masonry {
  columns: 2;
  column-gap: clamp(0.8rem, 1.6vw, 1.4rem);
}

@media (min-width: 760px) { .masonry { columns: 3; } }
@media (min-width: 1200px) { .masonry { columns: 4; } }

.masonry a {
  display: block;
  margin-bottom: clamp(0.8rem, 1.6vw, 1.4rem);
  overflow: hidden;
  break-inside: avoid;
  cursor: zoom-in;
}

.masonry img {
  width: 100%;
  filter: brightness(0.88);
  transform: scale(1.01);
  transition: transform 1.6s var(--ease), filter 0.8s;
}

.masonry a:hover img { transform: scale(1.06); filter: brightness(1); }

/* lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(8, 7, 6, 0.96);
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease), visibility 0s linear 0.5s;
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s var(--ease);
}

.lightbox img {
  max-width: min(92vw, 1100px);
  max-height: 86vh;
  object-fit: contain;
}

.lightbox button {
  position: absolute;
  appearance: none;
  background: none;
  border: 0;
  color: var(--ivory-dim);
  font-family: var(--sans);
  font-size: 0.68rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 1rem;
  transition: color 0.3s;
}

.lightbox button:hover { color: var(--ivory); }

.lightbox .lb-close { top: 1.4rem; right: clamp(1.4rem, 4vw, 3.5rem); }
.lightbox .lb-prev { left: clamp(0.6rem, 3vw, 2.5rem); top: 50%; transform: translateY(-50%); }
.lightbox .lb-next { right: clamp(0.6rem, 3vw, 2.5rem); top: 50%; transform: translateY(-50%); }

.lightbox .lb-count {
  position: absolute;
  bottom: 1.6rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.62rem;
  letter-spacing: 0.4em;
  color: var(--ivory-faint);
}

/* ---------- kontakty ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
}

@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

.contact-block {
  padding-top: 1.6rem;
  border-top: 1px solid var(--hairline);
}

.contact-block .label { display: block; margin-bottom: 1.2rem; }

.contact-block .big {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.35;
}

.contact-block p { font-size: 0.92rem; color: var(--ivory-dim); }

.contact-block a:hover { color: var(--bronze); }

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

.cta-line {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  margin-top: 2.6rem;
  font-size: 0.68rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ivory);
  border-bottom: 1px solid var(--ivory-faint);
  padding-bottom: 0.7rem;
  transition: color 0.4s, border-color 0.4s, letter-spacing 0.6s var(--ease);
}

.cta-line::after { content: "→"; letter-spacing: 0; transition: transform 0.6s var(--ease); }

.cta-line:hover {
  color: var(--bronze);
  border-color: var(--bronze);
  letter-spacing: 0.5em;
}

.cta-line:hover::after { transform: translateX(6px); }

/* ---------- patička ---------- */

.site-footer {
  padding: clamp(4rem, 9vh, 6rem) clamp(1.4rem, 4vw, 3.5rem) 2.4rem;
  border-top: 1px solid var(--hairline);
  text-align: center;
}

.site-footer .wordmark {
  display: inline-block;
  font-size: clamp(1.4rem, 3.4vw, 2.2rem);
  margin-bottom: 2.6rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.2rem 2.4rem;
  margin-bottom: 2.6rem;
}

.footer-nav a {
  font-size: 0.62rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  transition: color 0.3s;
}

.footer-nav a:hover { color: var(--bronze); }

.footer-meta {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--ivory-faint);
  line-height: 2;
}

.footer-meta a { color: var(--ivory-dim); }
.footer-meta a:hover { color: var(--bronze); }

/* ---------- reveal animace ---------- */

.reveal {
  opacity: 0;
  transform: translateY(2.2rem);
  transition: opacity 1.1s var(--ease), transform 1.1s var(--ease);
}

.reveal.in { opacity: 1; transform: none; }

.reveal-d1 { transition-delay: 0.12s; }
.reveal-d2 { transition-delay: 0.24s; }
.reveal-d3 { transition-delay: 0.36s; }

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