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

:root {
  --black: #080808;
  --white: #f4f2ef;
  --gray1: #1a1a1a;
  --gray2: #2a2a2a;
  --gray3: #555;
  --gray4: #888;
  --gray5: #bbb;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 300;
  overflow-x: hidden;
}

/* GRAIN OVERLAY */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.035;
  pointer-events: none;
  z-index: 9000;
}

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 3rem;
  mix-blend-mode: difference;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--white);
  text-decoration: none;
  cursor: pointer;
}
.nav-links { display: flex; gap: 2.5rem; }
.nav-links a {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  text-decoration: none;
  opacity: 0.6;
  transition: opacity 0.2s;
  cursor: pointer;
}
.nav-links a:hover { opacity: 1; }
.nav-ig {
  display: flex;
  align-items: center;
  opacity: 0.6;
  transition: opacity 0.2s;
}
.nav-ig:hover { opacity: 1; }

/* HERO */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 3rem 5rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(255,255,255,0.03) 0%, transparent 70%),
    linear-gradient(180deg, transparent 50%, rgba(8,8,8,0.95) 100%);
}

/* Animated lines in hero */
.hero-lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0.06;
}
.hero-lines::before {
  content: '';
  position: absolute;
  top: 0; left: 20%; width: 1px; height: 100%;
  background: var(--white);
  animation: linePulse 8s ease-in-out infinite;
}
.hero-lines::after {
  content: '';
  position: absolute;
  top: 0; left: 65%; width: 1px; height: 100%;
  background: var(--white);
  animation: linePulse 8s ease-in-out infinite 4s;
}
@keyframes linePulse {
  0%, 100% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
}

.hero-content { position: relative; z-index: 1; }

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gray4);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 1s ease forwards 0.3s;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(52px, 9vw, 120px);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 1s ease forwards 0.5s;
}
.hero-title em {
  font-style: italic;
  color: var(--gray5);
}

.hero-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  opacity: 0;
  animation: fadeUp 1s ease forwards 0.8s;
}

.hero-sub {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray4);
}

.hero-intro {
  max-width: 340px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--gray4);
  text-align: right;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeIn 1s ease forwards 1.5s;
}

.hero-cta {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--white);
  text-decoration: none;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn 1s ease forwards 1.5s;
  transition: opacity 0.2s;
  white-space: nowrap;
}
.hero-cta:hover { opacity: 0.7; }
.hero-cta svg { animation: arrowBounce 1.8s ease-in-out infinite; }
@keyframes arrowBounce {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(5px); opacity: 1; }
}
.scroll-line { display: none; }
@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* SECTION BASE */
section { padding: 8rem 3rem; }
.section-label {
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gray3);
  margin-bottom: 4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.section-label::after {
  content: '';
  flex: 1;
  max-width: 60px;
  height: 1px;
  background: var(--gray3);
}

/* ABOUT */
.about { border-top: 1px solid var(--gray2); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
  max-width: 1200px;
}
.about-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}
.about-title em { font-style: italic; color: var(--gray4); }
.about-text p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray4);
  margin-bottom: 1.5rem;
}

/* PORTFOLIO */
.portfolio { border-top: 1px solid var(--gray2); }
.filters {
  display: flex;
  gap: 0;
  margin-bottom: 3rem;
  border: 1px solid var(--gray2);
  width: fit-content;
}
.filter-btn {
  background: none;
  border: none;
  border-right: 1px solid var(--gray2);
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray3);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:last-child { border-right: none; }
.filter-btn:hover, .filter-btn.active {
  background: var(--white);
  color: var(--black);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
}
.gallery-item {
  overflow: hidden;
  cursor: pointer;
  position: relative;
  aspect-ratio: 1 / 1;
  opacity: 0;
  transform: translateY(36px) scale(0.95);
  filter: blur(8px) brightness(0.5);
  transition:
    opacity 1.2s cubic-bezier(0.22, 1, 0.36, 1),
    transform 1.2s cubic-bezier(0.22, 1, 0.36, 1),
    filter 1.2s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform, filter;
}
.gallery-item.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0px) brightness(1);
}

/* Shimmer skeleton pred načítaním obrázka */
.gallery-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    var(--gray1) 30%,
    var(--gray2) 50%,
    var(--gray1) 70%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s ease-in-out infinite;
  z-index: 0;
  transition: opacity 0.5s ease;
}
.gallery-item.img-loaded::before {
  opacity: 0;
  pointer-events: none;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  z-index: 1;
}
.gallery-item:hover img {
  transform: scale(1.05);
}
.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }
.gallery-item-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
}

.coming-soon {
  border: 1px solid var(--gray2);
  padding: 4rem;
  text-align: center;
  margin-top: 3px;
}
.coming-soon p {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray3);
}

/* GEAR */
.gear-section { border-top: 1px solid var(--gray2); }
.gear-wrapper {
  display: flex;
  align-items: center;
  gap: 6rem;
}
.gear-image {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gear-image img {
  width: 320px;
  opacity: 0.75;
  filter: invert(1) brightness(0.85);
}
.gear-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--gray2);
  border: 1px solid var(--gray2);
  max-width: 640px;
  margin-top: 1rem;
}
.gear-item {
  background: var(--black);
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.gear-key {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray3);
}
.gear-val {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  color: var(--white);
}
.gear-sub {
  font-size: 12px;
  color: var(--gray4);
  line-height: 1.5;
}

/* CONTACT */
.contact-section { border-top: 1px solid var(--gray2); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}
.contact-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}
.contact-cta {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray4);
  margin-bottom: 2rem;
}
.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.contact-meta-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 13px;
  color: var(--gray4);
}
.contact-meta-item::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--gray3);
}

.contact-form { display: flex; flex-direction: column; gap: 0; }
.form-field {
  border-bottom: 1px solid var(--gray2);
  padding: 1.5rem 0;
  transition: border-color 0.2s;
}
.form-field:focus-within { border-color: var(--gray5); }
.form-field.field-error { border-color: var(--gray3); }
.field-error-msg {
  display: block;
  margin-top: 0.5rem;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray3);
  text-transform: uppercase;
}
.form-field label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray3);
  margin-bottom: 0.75rem;
}
.form-field input,
.form-field textarea {
  width: 100%;
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--white);
  resize: none;
}
.form-field textarea { min-height: 100px; }
.form-submit {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  background: none;
  border: 1px solid var(--gray2);
  padding: 1rem 2rem;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  cursor: pointer;
  transition: all 0.3s;
  width: fit-content;
}
.form-submit:hover {
  background: var(--white);
  color: var(--black);
}
.form-submit svg { transition: transform 0.3s; }
.form-submit:hover svg { transform: translateX(4px); }

.ig-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--gray4);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}
.ig-link:hover { color: var(--white); }

/* FOOTER */
footer {
  padding: 2rem 3rem;
  border-top: 1px solid var(--gray2);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
footer p {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray3);
}

/* MODAL */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(8,8,8,0.97);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}
.modal.active { opacity: 1; pointer-events: all; }
.modal img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  transform: scale(0.92);
  transition: transform 0.4s ease, opacity 0.15s ease;
}
.modal.active img { transform: scale(1); }
.modal-close {
  position: absolute;
  top: 2rem;
  right: 2.5rem;
  background: none;
  border: none;
  color: var(--gray4);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.2s;
}
.modal-close:hover { color: var(--white); }

.modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 1px solid var(--gray2);
  color: var(--gray4);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}
.modal-nav:hover { border-color: var(--gray5); color: var(--white); }
.modal-prev { left: 2rem; }
.modal-next { right: 2rem; }

/* ANIMATIONS */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  nav { padding: 1.25rem 1.5rem; }
  .hero { padding: 0 1.5rem 4rem; }
  .hero-bottom { flex-direction: column; align-items: flex-start; }
  .hero-intro { text-align: left; }
  section { padding: 5rem 1.5rem; }
  .about-inner { grid-template-columns: 1fr; gap: 3rem; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
  .gear-grid { grid-template-columns: 1fr; }
  .gear-wrapper { flex-direction: column; gap: 3rem; }
  .gear-image img { width: 220px; }
  footer { flex-direction: column; gap: 0.5rem; text-align: center; }
  .nav-links { display: none; }
}
@media (max-width: 500px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .filters { flex-wrap: wrap; }
  .filter-btn { border-right: none; border-bottom: 1px solid var(--gray2); }
}