/* ============================================================
   Pavol Gregor Biely — handcrafted leather, informational leaflet
   ============================================================ */

:root {
  --cream: #f6f1e7;
  --paper: #efe4d2;
  --paper-2: #e7d8bf;
  --ink: #2a1f16;
  --ink-soft: #4a3b2c;
  --leather: #5e3421;
  --leather-deep: #3c2113;
  --brass: #a8783f;
  --brass-light: #cf9f5e;
  --line: rgba(42, 31, 22, 0.14);
  --shadow: 0 20px 50px rgba(30, 20, 10, 0.18);
  --radius: 2px;
  --serif: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --sans: "Jost", "Helvetica Neue", Arial, sans-serif;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--leather-deep);
}

p { margin: 0; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 6vw;
}

.eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.72rem;
  color: var(--brass);
  font-weight: 500;
}

.rule {
  width: 64px;
  height: 2px;
  background: linear-gradient(90deg, var(--brass), transparent);
  margin: 22px 0 26px;
}
.rule.center { margin-left: auto; margin-right: auto; }

/* ---------------- Top bar / language switcher ---------------- */

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 6vw;
  pointer-events: none;
  mix-blend-mode: normal;
  background: transparent;
  box-shadow: none;
  transition: background .35s ease, box-shadow .35s ease;
}
.topbar.scrolled {
  background: rgba(246, 241, 231, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--line);
}
.topbar .brandmark {
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: #f3ead9;
  opacity: 0;
  transition: opacity .4s ease, color .4s ease;
  pointer-events: auto;
  text-shadow: 0 1px 6px rgba(0,0,0,0.35);
}
.topbar.scrolled .brandmark { opacity: 1; color: var(--leather-deep); text-shadow:none; }

.lang-switcher { position: relative; pointer-events: auto; }

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.55);
  color: #fbf6ec;
  padding: 9px 14px;
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.topbar.scrolled .lang-toggle {
  background: var(--paper);
  border-color: var(--line);
  color: var(--ink);
}
.lang-toggle svg { width: 16px; height: 16px; flex-shrink: 0; }
.lang-toggle:hover { background: rgba(255,255,255,0.28); }
.topbar.scrolled .lang-toggle:hover { background: #fff; }

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  min-width: 168px;
  padding: 6px;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}
.lang-menu.open { opacity: 1; transform: translateY(0); pointer-events: auto; }

.lang-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  border: none;
  background: transparent;
  text-align: left;
  padding: 10px 12px;
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--ink-soft);
  border-radius: 6px;
  cursor: pointer;
}
.lang-option:hover { background: var(--paper); color: var(--ink); }
.lang-option[aria-checked="true"] { color: var(--leather); font-weight: 500; }
.lang-option[aria-checked="true"]::after {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brass);
  display: inline-block;
}

/* ---------------- Hero ---------------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: #f7f1e4;
  background: #1c130b;
}
.hero-media {
  position: absolute; inset: 0;
  overflow: hidden;
}
.hero-media img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.04);
}
.hero-media::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(0deg, rgba(20,13,7,0.86) 0%, rgba(20,13,7,0.42) 46%, rgba(20,13,7,0.28) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 6vw 9vh;
  max-width: 780px;
}
.hero .eyebrow { color: var(--brass-light); }
.hero h1 {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  color: #fbf6ea;
  line-height: 1.04;
  margin: 14px 0 22px;
}
.hero-subtitle {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  max-width: 46ch;
  color: #ece1cd;
  font-weight: 300;
}

.hero-scrollcue {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  width: 1px; height: 46px;
  background: linear-gradient(180deg, rgba(247,241,228,0.85), transparent);
  z-index: 2;
}

/* ---------------- Sections ---------------- */

section { position: relative; }

.section {
  padding: 108px 0;
}
.section-narrow { max-width: 760px; margin: 0 auto; text-align: center; }

.philosophy { background: var(--cream); }
.philosophy h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
.philosophy p {
  margin-top: 24px;
  font-size: 1.14rem;
  color: var(--ink-soft);
  font-weight: 300;
  line-height: 1.85;
}

/* Materials */
.materials {
  background: var(--leather-deep);
  color: #f2e7d5;
}
.materials .eyebrow { color: var(--brass-light); }
.materials-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.materials h2 { color: #f7efe0; font-size: clamp(1.9rem, 3.2vw, 2.5rem); }
.materials p {
  margin-top: 20px;
  font-size: 1.05rem;
  color: #d9c9ae;
  font-weight: 300;
  line-height: 1.85;
}
.materials-tags {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 34px;
  list-style: none;
  padding: 0;
}
.materials-tags li {
  border-top: 1px solid rgba(207,159,94,0.35);
  padding-top: 10px;
  font-family: var(--serif);
  font-size: 1.05rem;
  color: #f0e2c9;
}
.materials-media {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow);
}
.materials-media img { width: 100%; height: 100%; object-fit: cover; }
.materials-media-tiny {
  position: absolute;
  width: 46%;
  bottom: -8%; left: -10%;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0,0,0,0.45);
  border: 6px solid var(--leather-deep);
}
.materials-media-tiny img { width: 100%; display: block; aspect-ratio: 1/1; object-fit: cover; }

/* Process */
.process { background: var(--paper); }
.process-head { max-width: 700px; margin: 0 auto 72px; text-align: center; }
.process-head h2 { font-size: clamp(1.9rem, 3.2vw, 2.5rem); }
.process-head p {
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 1.06rem;
  font-weight: 300;
}

.process-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
  padding: 46px 0;
}
.process-row:not(:last-child) { border-bottom: 1px solid var(--line); }
.process-row.reverse .process-media { order: 2; }
.process-row.reverse .process-text { order: 1; }

.process-media {
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
}
.process-media img { width: 100%; height: 100%; object-fit: cover; }

.process-index {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--brass);
  letter-spacing: 0.1em;
}
.process-text h3 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  margin: 10px 0 14px;
  color: var(--leather-deep);
}
.process-text p {
  color: var(--ink-soft);
  font-size: 1.02rem;
  font-weight: 300;
  line-height: 1.8;
}

/* Gallery */
.gallery { background: var(--cream); }
.gallery-head { max-width: 700px; margin: 0 auto 56px; text-align: center; }
.gallery-head h2 { font-size: clamp(1.9rem, 3.2vw, 2.5rem); }
.gallery-head p { margin-top: 18px; color: var(--ink-soft); font-size: 1.05rem; font-weight: 300; }

.gallery-grid {
  columns: 3 260px;
  column-gap: 18px;
}
.gallery-item {
  break-inside: avoid;
  margin-bottom: 18px;
  border-radius: 3px;
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(30,20,10,0.14);
  cursor: zoom-in;
  position: relative;
}
.gallery-item img {
  width: 100%;
  display: block;
  transition: transform .6s cubic-bezier(.2,.7,.2,1);
}
.gallery-item:hover img { transform: scale(1.045); }

.lightbox {
  position: fixed; inset: 0;
  background: rgba(15,10,6,0.92);
  display: flex; align-items: center; justify-content: center;
  padding: 4vh 4vw;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
  z-index: 200;
  cursor: zoom-out;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img {
  max-width: 100%; max-height: 92vh;
  border-radius: 3px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}

/* Closing */
.closing {
  background: var(--leather-deep);
  color: #f2e7d5;
  text-align: center;
}
.closing .eyebrow { color: var(--brass-light); }
.closing h2 {
  color: #f7efe0;
  font-size: clamp(2rem, 4vw, 2.8rem);
  max-width: 16ch;
  margin: 14px auto 0;
}
.closing p {
  max-width: 62ch;
  margin: 26px auto 0;
  color: #d9c9ae;
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 1.85;
}

/* Footer */
footer {
  background: #180f08;
  color: #a68f74;
  padding: 56px 0 34px;
  text-align: center;
}
.footer-mark {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: #f2e7d5;
  letter-spacing: 0.03em;
}
footer .footer-tagline {
  margin-top: 10px;
  font-size: 0.92rem;
  color: #b39d80;
  font-weight: 300;
}
footer .footer-meta {
  margin-top: 26px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: #7a6853;
}
footer .footer-meta div { margin-top: 4px; }

/* ---------------- Reveal-on-scroll ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .materials-grid { grid-template-columns: 1fr; gap: 44px; }
  .materials-media { aspect-ratio: 16/10; }
  .materials-media-tiny { width: 38%; bottom: -10%; left: -6%; }
  .process-row, .process-row.reverse {
    grid-template-columns: 1fr;
  }
  .process-row .process-media, .process-row.reverse .process-media { order: 1; }
  .process-row .process-text, .process-row.reverse .process-text { order: 2; }
  .gallery-grid { columns: 2 220px; }
  .section { padding: 76px 0; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 5.5vw; }
  .hero-content { padding-bottom: 12vh; }
  .gallery-grid { columns: 2 150px; column-gap: 12px; }
  .gallery-item { margin-bottom: 12px; }
  .materials-tags { grid-template-columns: 1fr; }
  .topbar { padding: 16px 5vw; }
}

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