/* ==========================================================================
   Design tokens — Zadání sekce 10 (Vizuální identita a UI principy)
   ========================================================================== */
:root {
  --c-black: #0A0A0B;
  --c-graphite: #1C1E20;
  --c-gray-mid: #777A7E;
  --c-gray-light: #E7E7E7;
  --c-white: #FFFFFF;
  --c-gold: #B5964A;

  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, sans-serif;

  --container-max: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 4px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 200ms;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--c-black); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--c-white);
  color: var(--c-black);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.05;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.6rem, 6vw, 5rem); }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); }

p { margin: 0 0 1em; }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--c-gray-mid); }

.type-reveal {
  --reveal: 1;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  background-image: linear-gradient(90deg, var(--c-black) 50%, rgba(10, 10, 11, 0.14) 50%);
  background-size: 200% 100%;
  background-position-x: calc(100% - (var(--reveal) * 100%));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@media (prefers-reduced-motion: reduce) {
  .type-reveal { background-position-x: 0% !important; }
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(56px, 9vw, 120px); }
.section--dark { background: var(--c-black); color: var(--c-white); }
.section--graphite { background: var(--c-graphite); color: var(--c-white); }
.section--light { background: var(--c-white); color: var(--c-black); }
.section--panel { background: var(--c-gray-light); color: var(--c-black); }
.section--dark .lede, .section--graphite .lede { color: #B7B9BC; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 1.05rem;
  color: var(--c-gold);
  margin-bottom: 1em;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--c-gold);
  display: inline-block;
}

/* Buttons — primary CTA stays black/white per brief; gold reserved for accents/focus */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.9em 1.8em;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 1rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn-primary {
  background: var(--c-white);
  color: var(--c-black);
  border-color: var(--c-white);
}
.btn-primary:hover { background: transparent; color: var(--c-white); }
.section--light .btn-primary,
.section--panel .btn-primary {
  background: var(--c-black);
  color: var(--c-white);
  border-color: var(--c-black);
}
.section--light .btn-primary:hover,
.section--panel .btn-primary:hover { background: transparent; color: var(--c-black); }

.btn-secondary {
  background: transparent;
  color: inherit;
  border-color: currentColor;
}
.btn-secondary:hover { border-color: var(--c-gold); color: var(--c-gold); }

.btn:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 3px;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 1em; align-items: center; justify-content: flex-start; }

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--c-black);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.55rem;
  color: var(--c-white);
  text-decoration: none;
}
.main-nav { display: flex; align-items: center; gap: clamp(16px, 2.4vw, 32px); }
.main-nav ul {
  list-style: none;
  display: flex;
  gap: clamp(14px, 2vw, 28px);
  margin: 0;
  padding: 0;
}
.main-nav a:not(.btn) {
  color: var(--c-white);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
  padding-block: 0.4em;
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.main-nav a:not(.btn):hover { border-color: var(--c-gold); }
.nav-cta.btn { padding: 0.3em 0.7em; font-size: 1.15rem; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--c-white);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px 8px;
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 72px;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 60;
    background-color: var(--c-black);
    flex-direction: column;
    align-items: stretch;
    padding: 32px var(--gutter);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  }
  .main-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav ul li { border-bottom: 1px solid rgba(255,255,255,0.08); }
  .main-nav ul a:not(.btn) { display: block; padding: 14px 0; }
  .nav-cta.btn { margin-top: 20px; width: 100%; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: min(92vh, 860px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-black);
  color: var(--c-white);
  overflow: hidden;
}
@media (max-width: 780px) {
  .hero {
    min-height: 0;
    height: 92vh;
    height: 92svh;
  }
}
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media video, .hero-media img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 20%;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,11,0.35) 0%, rgba(10,10,11,0.55) 55%, rgba(10,10,11,0.94) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-block: clamp(40px, 8vw, 96px);
  max-width: 820px;
  margin-inline: auto;
  text-align: left;
}
.hero-content h1 { margin-bottom: 0.2em; }
.hero-content .lede { color: #D8D9DB; max-width: 560px; }

.scroll-cue {
  position: absolute;
  right: clamp(20px, 5vw, 64px);
  bottom: clamp(32px, 8vh, 72px);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--c-gray-mid);
  transition: color var(--dur) var(--ease);
}
.scroll-cue:hover, .scroll-cue:focus-visible { color: var(--c-gold); }
.scroll-cue-label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.8rem;
}
.scroll-cue-track {
  position: relative;
  width: 1px;
  height: 70px;
  background: rgba(255,255,255,0.18);
  overflow: hidden;
}
.scroll-cue-track::before {
  content: "";
  position: absolute;
  left: 0;
  top: -45%;
  width: 100%;
  height: 45%;
  background: linear-gradient(180deg, transparent, var(--c-gold));
  animation: scroll-track-move 2s ease-in-out infinite;
}
@keyframes scroll-track-move {
  0% { top: -45%; }
  100% { top: 100%; }
}
@media (max-width: 780px) {
  .scroll-cue { right: 16px; bottom: 20px; gap: 10px; }
  .scroll-cue-label { font-size: 0.7rem; letter-spacing: 0.2em; }
  .scroll-cue-track { height: 46px; }
}

/* ==========================================================================
   Trust bar
   ========================================================================== */
.trust-bar { padding-block: 28px; position: relative; }
@media (max-width: 780px) {
  .trust-bar { margin-top: -6px; }
}
.trust-bar ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px clamp(20px, 4vw, 48px);
  justify-content: center;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 1.15rem;
  color: var(--c-gray-mid);
}
.trust-bar li { display: flex; align-items: center; gap: 12px; }
.trust-bar li:not(:last-child)::after {
  content: "";
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--c-gold);
  margin-left: 12px;
}

/* Photo placeholder — used where real photography from the shot list (brief section 11)
   is not yet delivered; a decorative image would misrepresent finished content. */
.photo-placeholder {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(135deg, rgba(181,150,74,0.10) 0 2px, transparent 2px 18px),
    var(--c-graphite);
  border: 1px solid rgba(181,150,74,0.25);
  display: flex;
  align-items: flex-end;
  padding: 1.2em;
}
.photo-placeholder span {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.8rem;
  color: var(--c-gray-mid);
}
.photo-placeholder.is-wide { aspect-ratio: 16 / 10; }

/* ==========================================================================
   Grids / cards
   ========================================================================== */
.grid { display: grid; gap: clamp(20px, 3vw, 32px); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--c-graphite);
  color: var(--c-white);
  border-radius: var(--radius);
  padding: clamp(24px, 3vw, 32px);
  border: 1px solid rgba(255,255,255,0.06);
}
.section--light .card, .section--panel .card {
  background: var(--c-white);
  color: var(--c-black);
  border: 1px solid var(--c-gray-light);
}

/* Recognition cards module 03 */
.recog-card .num {
  font-family: var(--font-display);
  color: var(--c-gold);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

/* System pillars module 04 */
.pillars { counter-reset: pillar; }
.pillar {
  position: relative;
  padding-left: 3.2rem;
}
.pillar::before {
  counter-increment: pillar;
  content: counter(pillar, decimal-leading-zero);
  position: absolute;
  left: 0; top: -0.1em;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--c-gold);
}

.primary-service-grid { grid-template-columns: 1.1fr 0.9fr; align-items: start; }
@media (max-width: 780px) { .primary-service-grid { grid-template-columns: 1fr; } }

/* Service cards module 05/06 */
.service-card {
  display: flex;
  flex-direction: column;
  gap: 1em;
  height: 100%;
}
.service-card.is-primary {
  background: var(--c-black);
  border: 1px solid rgba(181,150,74,0.4);
  grid-column: span 4;
}
@media (max-width: 900px) { .service-card.is-primary { grid-column: 1 / -1; } }
.service-card .price {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--c-gold);
  line-height: 1;
}
.service-card .price small {
  font-size: 0.5em;
  color: var(--c-gray-mid);
  text-transform: none;
  letter-spacing: 0;
  display: block;
  margin-top: 0.3em;
}
.service-card .price-note {
  font-size: 0.85rem;
  color: var(--c-gray-mid);
}
.service-card .meta {
  display: flex;
  gap: 1em;
  flex-wrap: wrap;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--c-gray-mid);
}
.service-card ul {
  margin: 0; padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5em;
  font-size: 0.95rem;
}
.service-card ul li { padding-left: 1.3em; position: relative; }
.service-card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 6px; height: 6px;
  background: var(--c-gold);
}
.service-card .btn { margin-top: auto; align-self: flex-start; }
.service-tag {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--c-gold);
}

/* Process steps module 07 */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  counter-reset: step;
}
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 2.6rem; }
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 0; left: 0;
  width: 2.2rem; height: 2.2rem;
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  color: var(--c-gold);
}
.step h3 { font-size: 1.1rem; margin-bottom: 0.3em; }
.step p { font-size: 0.9rem; color: var(--c-gray-mid); margin: 0; }

/* Testimonials module 08 */
.testimonial {
  display: flex;
  flex-direction: column;
  gap: 1em;
}
.testimonial .quote { font-size: 1.05rem; }
.testimonial .who {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  color: var(--c-gold);
}
.testimonial .context { font-size: 0.85rem; color: var(--c-gray-mid); }

/* About module 09 */
.about-module { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
@media (max-width: 780px) { .about-module { grid-template-columns: 1fr; } }
.about-module img { border-radius: var(--radius); }

/* FAQ module 10 */
.faq-list { display: flex; flex-direction: column; gap: 1px; background: var(--c-gray-light); }
.faq-item { background: var(--c-white); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.2em 0;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.01em;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--c-gold);
  flex-shrink: 0;
  transition: transform var(--dur) var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding-bottom: 1.4em; color: var(--c-gray-mid); max-width: 68ch; }

/* Final CTA / contact module 11 */
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(28px, 5vw, 64px); }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.form-field { margin-bottom: 1.2em; }
.form-field label {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5em;
  color: var(--c-gray-mid);
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: inherit;
  padding: 0.85em 1em;
  font-family: var(--font-body);
  font-size: 1rem;
  border-radius: var(--radius);
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--c-gold);
}
.form-checkbox { display: flex; align-items: flex-start; gap: 0.7em; font-size: 0.85rem; color: var(--c-gray-mid); }
.form-checkbox input { width: auto; margin-top: 0.3em; }
.contact-info { display: flex; flex-direction: column; gap: 1.2em; }
.contact-info a { text-decoration: none; }
.contact-info .item { display: flex; flex-direction: column; gap: 0.2em; }
.contact-info .item .label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--c-gray-mid); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--c-black);
  color: var(--c-white);
  padding-block: clamp(56px, 8vw, 88px) 32px;
  border-top: 1px solid rgba(181, 150, 74, 0.25);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: clamp(32px, 5vw, 56px);
  padding-bottom: 48px;
}
@media (max-width: 860px) {
  .footer-top { grid-template-columns: 1fr 1fr; row-gap: 40px; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
}
.footer-brand .logo { display: inline-block; }
.footer-tagline {
  margin: 0.9em 0 1.4em;
  color: var(--c-gray-mid);
  max-width: 30ch;
}
.footer-col-title {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  color: var(--c-gold);
  margin: 0 0 1.2em;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8em;
  margin: 0;
  padding: 0;
  font-size: 0.95rem;
  color: #C7C9CC;
}
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--c-gold); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.8rem;
  color: var(--c-gray-mid);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a { color: var(--c-gray-mid); text-decoration: none; }
.footer-bottom a:hover { color: var(--c-gold); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 12px; top: -60px;
  background: var(--c-white);
  color: var(--c-black);
  padding: 10px 16px;
  z-index: 100;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 12px; }