/* =============================================
   FILIP S. BELAN — style.css
   Dark luxury: #0a0a0a / #c9a84c / #f5f0e8
   ============================================= */

:root {
  --black: #0a0a0a;
  --black-2: #111111;
  --black-3: #1a1a1a;
  --gold: #c9a84c;
  --gold-light: #e2c97e;
  --gold-dim: rgba(201,168,76,0.15);
  --cream: #f5f0e8;
  --cream-dim: rgba(245,240,232,0.6);
  --white: #ffffff;
  --gray: #888;
  --border: rgba(201,168,76,0.2);
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --nav-h: 72px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  font-weight: 300;
  overflow-x: hidden;
}

img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 2px; }

/* ===================== NAVBAR ===================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5vw;
  z-index: 1000;
  transition: background var(--transition), border-color var(--transition);
}

.navbar.scrolled {
  background: rgba(10,10,10,0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  letter-spacing: 0.15em;
  color: var(--gold);
  font-weight: 400;
}

.nav-links {
  display: flex;
  gap: 3rem;
}

.nav-links a {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cream-dim);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold);
}

.nav-links a.active::after,
.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px; height: 1px;
  background: var(--cream);
  transition: var(--transition);
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2.2rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: var(--transition);
  border-radius: 0;
}

.btn--gold {
  background: var(--gold);
  color: var(--black);
}
.btn--gold:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

.btn--outline {
  border: 1px solid var(--border);
  color: var(--cream);
}
.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn--full { width: 100%; justify-content: center; }

/* ===================== HERO ===================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--black);
}

.hero-noise {
  position: absolute;
  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='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.6;
  pointer-events: none;
}

.hero-line {
  position: absolute;
  background: var(--border);
}

.hero-line--1 { top: 0; bottom: 0; left: 20%; width: 1px; }
.hero-line--2 { top: 0; bottom: 0; right: 20%; width: 1px; }
.hero-line--3 { left: 0; right: 0; bottom: 30%; height: 1px; }

.hero-content {
  position: relative;
  padding: calc(var(--nav-h) + 4rem) 5vw 4rem;
  max-width: 900px;
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
}

.hero-title span {
  opacity: 0;
  animation: fadeUp 0.8s forwards;
}
.hero-title span:nth-child(1) { animation-delay: 0.35s; }
.hero-title span:nth-child(2) { animation-delay: 0.5s; }
.hero-title span:nth-child(3) { animation-delay: 0.65s; }
.hero-title span:nth-child(4) { animation-delay: 0.8s; }

.hero-title--italic { font-style: italic; color: var(--cream-dim); }
.hero-title--gold { color: var(--gold); }

.hero-sub {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.95s forwards;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 1.1s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  right: 5vw;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fadeIn 1s 1.5s forwards;
}

.hero-scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
  writing-mode: vertical-rl;
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollLine 2s ease-in-out 2s infinite;
}

/* ===================== INTRO ===================== */
.intro {
  padding: 7rem 5vw;
  border-top: 1px solid var(--border);
}

.intro-inner {
  display: grid;
  grid-template-columns: 140px 1fr 300px;
  gap: 4rem;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
}

.intro-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  padding-top: 0.4rem;
}

.intro-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.intro-text h2 em {
  font-style: italic;
  color: var(--gold);
}

.intro-text p {
  color: var(--cream-dim);
  margin-bottom: 1.5rem;
  max-width: 480px;
}

.link-arrow {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  transition: gap var(--transition);
  display: inline-flex;
  gap: 0.5rem;
}
.link-arrow:hover { gap: 0.75rem; }

.intro-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  border-left: 1px solid var(--border);
  padding-left: 2rem;
}

.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-top: 0.25rem;
}

/* ===================== SECTION HEADER ===================== */
.section-header {
  max-width: 1200px;
  margin: 0 auto 4rem;
  padding: 0 5vw;
  display: flex;
  align-items: baseline;
  gap: 2rem;
}

.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  white-space: nowrap;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 300;
}

/* ===================== SERVICES PREVIEW ===================== */
.services-preview {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--border);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5vw;
  gap: 0;
}

.service-card {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: background var(--transition);
  position: relative;
}

.service-card:hover {
  background: var(--gold-dim);
}

.service-icon {
  width: 48px; height: 48px;
  color: var(--gold);
  opacity: 0.7;
}

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 300;
}

.service-card p {
  font-size: 0.85rem;
  color: var(--cream-dim);
  flex: 1;
}

.service-arrow {
  font-size: 1.2rem;
  color: var(--gold);
  opacity: 0;
  transform: translateX(-8px);
  transition: var(--transition);
  align-self: flex-start;
}

.service-card:hover .service-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ===================== PORTFOLIO PREVIEW ===================== */
.portfolio-preview {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 300px 300px;
  gap: 4px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5vw;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  background: var(--black-3);
}

.portfolio-item--large {
  grid-row: 1 / 3;
}

.portfolio-item img {
  transition: transform 0.6s var(--transition);
}

.portfolio-item:hover img {
  transform: scale(1.04);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,10,0.7);
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay span {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 0.3rem 0.75rem;
}

.portfolio-cta {
  text-align: center;
  padding: 3rem 0 0;
}

/* ===================== CTA BAND ===================== */
.cta-band {
  padding: 6rem 5vw;
  border-top: 1px solid var(--border);
  background: var(--black-2);
}

.cta-band-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-band h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
}

.cta-band h2 em {
  font-style: italic;
  color: var(--gold);
}

/* ===================== PAGE HERO ===================== */
.page-hero {
  padding: calc(var(--nav-h) + 5rem) 5vw 4rem;
  border-bottom: 1px solid var(--border);
  background: var(--black-2);
}

.page-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 300;
  line-height: 1;
  color: var(--cream);
}

/* ===================== SERVICES FULL ===================== */
.services-full {
  max-width: 1200px;
  margin: 0 auto;
}

.service-block {
  display: grid;
  grid-template-columns: 80px 1fr 220px;
  gap: 4rem;
  padding: 5rem 5vw;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.service-block--alt {
  background: var(--black-2);
}

.service-block-num {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 300;
  color: var(--border);
  line-height: 1;
}

.service-block-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 300;
  margin-bottom: 1.25rem;
  color: var(--gold);
}

.service-block-content p {
  color: var(--cream-dim);
  margin-bottom: 1.5rem;
  max-width: 500px;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-list li {
  font-size: 0.85rem;
  color: var(--cream-dim);
  padding-left: 1rem;
  position: relative;
}

.service-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold);
}

.service-block-icon {
  color: var(--gold);
  opacity: 0.3;
  padding-top: 0.5rem;
}

/* ===================== PORTFOLIO PAGE ===================== */
.portfolio-page {
  padding: 4rem 5vw;
  max-width: 1200px;
  margin: 0 auto;
}

.filter-bar {
  display: flex;
  gap: 0;
  margin-bottom: 3rem;
  border: 1px solid var(--border);
  width: fit-content;
}

.filter-btn {
  padding: 0.65rem 1.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  border-right: 1px solid var(--border);
  transition: var(--transition);
}

.filter-btn:last-child { border-right: none; }

.filter-btn:hover,
.filter-btn.active {
  background: var(--gold);
  color: var(--black);
}

.gallery-masonry {
  columns: 3;
  column-gap: 4px;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 4px;
  position: relative;
  overflow: hidden;
  background: var(--black-3);
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s var(--transition);
}

.gallery-item:hover img {
  transform: scale(1.04);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,10,0.65);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay span {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
}

.gallery-item.hidden {
  display: none;
}

/* ===================== LIGHTBOX ===================== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
}

.lightbox-close {
  position: fixed;
  top: 1.5rem; right: 2rem;
  font-size: 1.5rem;
  color: var(--cream);
  opacity: 0.7;
  transition: opacity var(--transition);
  z-index: 2001;
}

.lightbox-close:hover { opacity: 1; }

.lightbox-prev,
.lightbox-next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
  color: var(--cream);
  opacity: 0.5;
  transition: opacity var(--transition);
  z-index: 2001;
  padding: 1rem;
}

.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }
.lightbox-prev:hover,
.lightbox-next:hover { opacity: 1; }

/* ===================== CONTACT ===================== */
.contact-section {
  padding: 6rem 5vw;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.contact-info h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.contact-info h2 em {
  font-style: italic;
  color: var(--gold);
}

.contact-info > p {
  color: var(--cream-dim);
  margin-bottom: 2.5rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-item-icon {
  width: 20px; height: 20px;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item-label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.2rem;
}

.contact-item-value {
  font-size: 0.95rem;
  color: var(--cream);
  transition: color var(--transition);
}

.contact-item-value:hover { color: var(--gold); }

/* ---- FORM ---- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--black-2);
  border: 1px solid var(--border);
  color: var(--cream);
  padding: 0.9rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 300;
  border-radius: 0;
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
}

.form-group textarea { resize: vertical; }

.form-group select option {
  background: var(--black-2);
}

.form-note {
  font-size: 0.75rem;
  color: var(--gray);
  text-align: center;
}

/* ===================== FOOTER ===================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 5vw;
  background: var(--black);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  letter-spacing: 0.15em;
  color: var(--gold);
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--gold); }

.footer-copy {
  font-size: 0.75rem;
  color: var(--gray);
}

/* ===================== ANIMATIONS ===================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.01% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
  .intro-inner {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .intro-label { grid-column: 1 / -1; }
  .intro-stats { grid-column: 2; grid-row: 2; border-left: 1px solid var(--border); }

  .services-grid { grid-template-columns: repeat(2, 1fr); }

  .service-block {
    grid-template-columns: 60px 1fr;
  }
  .service-block-icon { display: none; }

  .portfolio-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 250px 250px 250px;
  }
  .portfolio-item--large { grid-row: 1; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(10,10,10,0.98);
    flex-direction: column;
    padding: 2rem 5vw;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  .hero-content { padding-top: calc(var(--nav-h) + 3rem); }

  .intro-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .intro-stats {
    flex-direction: row;
    border-left: none;
    border-top: 1px solid var(--border);
    padding-left: 0;
    padding-top: 2rem;
  }

  .services-grid { grid-template-columns: 1fr; }
  .service-card { border-right: none; border-bottom: 1px solid var(--border); }

  .portfolio-grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }
  .portfolio-item { height: 260px; }
  .portfolio-item--large { grid-row: auto; }

  .gallery-masonry { columns: 2; }

  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }

  .section-header { flex-direction: column; gap: 0.5rem; }

  .cta-band-inner { flex-direction: column; align-items: flex-start; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }

  .service-block {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .service-block-num { font-size: 2.5rem; }

  .filter-bar { flex-wrap: wrap; width: 100%; }
  .filter-btn { flex: 1; border-right: none; border-bottom: 1px solid var(--border); }
}

@media (max-width: 480px) {
  .gallery-masonry { columns: 1; }
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}

.logo {
  height: 40px;
  width: auto;
}

.footer-logo {
  height: 25px; /* zmenši podľa chuti */
  opacity: 0.8; /* voliteľné - jemnejší efekt */
}