/* wr-webs · White Rabbit · web showcase microsite
   Vanilla CSS, no framework, no build step.
   Brand DNA: sharp edges (no radius), no shadows, no gradients. */

:root {
  --bg: #000000;
  --dark-gray: #1A1A1A;
  --darker: #0A0A0A;
  --gray: #888888;
  --gray-soft: #B8B8B8;
  --white: #FFFFFF;
  --accent: #FFC107;
  --dark-accent: #784213;
  --font: "Century Gothic", "URW Gothic", "Avantgarde", "Trebuchet MS", system-ui, sans-serif;

  --max-w: 1200px;
  --gap: 1rem;
  --section-pad: 6rem 1.5rem;
  --section-pad-mobile: 4rem 1.25rem;
}

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

html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }

/* ============================================================
   Top nav
   ============================================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--dark-gray);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
}

.nav-logo {
  display: flex;
  align-items: center;
  height: 32px;
}
.nav-logo img { height: 32px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--gray-soft);
  font-size: 0.95rem;
  transition: color 0.15s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--white); }

.nav-cta {
  background: var(--accent);
  color: var(--bg);
  padding: 0.75rem 1.25rem;
  font-weight: bold;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border: 2px solid var(--accent);
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-cta:hover, .nav-cta:focus-visible {
  background: var(--bg);
  color: var(--accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  position: relative;
}
.nav-toggle span::before {
  content: ''; position: absolute; top: -8px; left: 0;
}
.nav-toggle span::after {
  content: ''; position: absolute; top: 8px; left: 0;
}
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

@media (max-width: 767px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--dark-gray);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.5rem 1.5rem;
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 0.75rem 0; border-bottom: 1px solid var(--dark-gray); }
  .nav-links a:last-of-type { border-bottom: 0; }
  .nav-links .nav-cta { margin-top: 0.75rem; justify-content: center; }
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
  text-align: left;
}

.hero h1 {
  font-size: clamp(2.25rem, 5.5vw, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  font-weight: bold;
  max-width: 14ch;
}

.hero-sub {
  margin-top: 1.25rem;
  color: var(--gray-soft);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  max-width: 50ch;
}

.hero-ctas {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 1.5rem;
  min-height: 44px;
  border: 2px solid var(--accent);
  font-weight: bold;
  font-size: 1rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--bg);
  color: var(--accent);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--white);
  color: var(--bg);
}

.hero-tagline {
  margin-top: 2rem;
  font-style: italic;
  color: var(--gray);
}

/* ============================================================
   Generic section
   ============================================================ */

.section {
  padding: var(--section-pad);
  max-width: var(--max-w);
  margin: 0 auto;
}

@media (max-width: 767px) {
  .section { padding: var(--section-pad-mobile); }
}

.section h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: bold;
}

.section-sub {
  margin-top: 0.75rem;
  color: var(--gray-soft);
  font-size: 1.05rem;
  max-width: 60ch;
}

.section-head { margin-bottom: 3rem; }

/* ============================================================
   Showcase grid (sec 4) · card format B (top border)
   ============================================================ */

.show-tile {
  background: var(--dark-gray);
  border-top: 4px solid var(--accent);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.15s ease;
}
.show-tile:hover { transform: translateY(-2px); }

.show-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--darker);
}
.show-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity 0.2s ease;
}
.show-tile:hover .show-thumb::after,
.show-tile:focus-within .show-thumb::after {
  opacity: 1;
}
.show-thumb::after {
  content: 'Otevřít web';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  letter-spacing: 0.04em;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.show-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.show-title {
  font-size: 1.125rem;
  font-weight: bold;
}

.show-desc {
  color: var(--gray-soft);
  font-size: 0.95rem;
  flex: 1;
}

.show-url {
  font-size: 0.85rem;
  color: var(--gray);
  word-break: break-all;
}

/* ============================================================
   Varianty (sec 4) · 4 stack sekcí, 2-col na desktopu
   ============================================================ */

.section--varianty-intro {
  padding-bottom: 2rem;
}

.tier-note {
  margin-top: 0;
  padding: 0.875rem 1rem;
  background: var(--dark-gray);
  border-left: 4px solid var(--accent);
  color: var(--gray-soft);
  font-size: 0.9rem;
}

.variant {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--dark-gray);
  position: relative;
}

@media (max-width: 767px) {
  .variant { padding: 3rem 1.25rem; }
}

.variant:last-of-type {
  border-bottom: 1px solid var(--dark-gray);
  margin-bottom: 6rem;
}

@media (max-width: 767px) {
  .variant:last-of-type { margin-bottom: 4rem; }
}

.variant-rec {
  position: absolute;
  top: -0.7rem;
  left: 1.5rem;
  background: var(--accent);
  color: var(--bg);
  font-size: 0.7rem;
  font-weight: bold;
  letter-spacing: 0.12em;
  padding: 0.3rem 0.6rem;
  text-transform: uppercase;
  z-index: 2;
}

.variant--recommended {
  background: linear-gradient(180deg, rgba(255, 193, 7, 0.04), transparent 30%);
}

.variant-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

@media (max-width: 1023px) {
  .variant-inner { grid-template-columns: 1fr; gap: 2rem; }
}

.variant-cap {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.variant-main h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: bold;
}

.variant-lead {
  margin-top: 0.875rem;
  color: var(--gray-soft);
  font-size: 1.05rem;
  max-width: 60ch;
}

.variant-main h3 {
  margin-top: 2rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: bold;
}

.variant-subhead {
  margin-top: 1rem;
  font-size: 0.95rem;
  font-weight: bold;
  color: var(--white);
}

.variant-list {
  margin-top: 0.875rem;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--gray-soft);
  font-size: 0.95rem;
}
.variant-list li {
  padding-left: 1.25rem;
  position: relative;
}
.variant-list li::before {
  content: '+';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

.variant-side {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 5rem;
}

@media (max-width: 1023px) {
  .variant-side { position: static; }
}

.variant-meta {
  background: var(--dark-gray);
  border-left: 4px solid var(--accent);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.variant-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-size: 0.95rem;
}
.variant-meta-row span {
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}
.variant-meta-row strong {
  color: var(--white);
  font-weight: bold;
  text-align: right;
}

.variant-meta-row--price {
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--bg);
}
.variant-meta-row--price strong { font-size: 1.05rem; }

.variant-price-placeholder {
  color: var(--accent) !important;
  font-style: italic;
  opacity: 0.85;
}

.variant-cta {
  align-self: stretch;
  justify-content: center;
}

.variant-refs {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.variant-refs-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray);
  font-weight: bold;
}

.variant-refs-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr 1fr;
}
.variant-refs-grid--solo {
  grid-template-columns: 1fr;
}

@media (max-width: 480px) {
  .variant-refs-grid { grid-template-columns: 1fr; }
}

.variant-refs-grid .show-tile {
  background: var(--dark-gray);
  border-top: 4px solid var(--accent);
}
.variant-refs-grid .show-body {
  padding: 0.875rem 1rem;
  gap: 0.25rem;
}
.variant-refs-grid .show-title {
  font-size: 1rem;
}
.variant-refs-grid .show-url {
  font-size: 0.8rem;
}

/* ============================================================
   Proces (sec 5) · 5 steps
   ============================================================ */

.proc {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(5, 1fr);
  align-items: stretch;
}
@media (max-width: 1023px) {
  .proc { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 639px) {
  .proc { grid-template-columns: 1fr; }
}

.proc-step {
  padding: 1.25rem 1rem;
  background: transparent;
  border-top: 1px solid var(--dark-gray);
  position: relative;
}
.proc-num {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: bold;
  letter-spacing: 0.1em;
}
.proc-name {
  font-size: 1.1rem;
  font-weight: bold;
  margin-top: 0.25rem;
}
.proc-desc {
  color: var(--gray-soft);
  font-size: 0.92rem;
  margin-top: 0.5rem;
}
.proc-step::after {
  content: '';
  position: absolute;
  top: -5px;
  right: -8px;
  width: 8px;
  height: 8px;
  background: var(--accent);
}
.proc-step:last-child::after { display: none; }
@media (max-width: 1023px) {
  .proc-step::after { display: none; }
}

/* ============================================================
   FAQ (sec 8) · card format B
   ============================================================ */

.faq {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 767px) {
  .faq { grid-template-columns: 1fr; }
}

.faq-item {
  background: var(--dark-gray);
  border-top: 4px solid var(--accent);
  padding: 1.25rem;
}
.faq-q {
  font-weight: bold;
  font-size: 1.05rem;
}
.faq-a {
  margin-top: 0.5rem;
  color: var(--gray-soft);
  font-size: 0.95rem;
}

/* ============================================================
   Kontakt CTA (sec 9.9)
   ============================================================ */

.contact {
  text-align: center;
  padding: 6rem 1.5rem;
  border-top: 1px solid var(--dark-gray);
  border-bottom: 1px solid var(--dark-gray);
}
.contact-mail {
  display: inline-block;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: bold;
  color: var(--accent);
  word-break: break-all;
}
.contact-mail:hover, .contact-mail:focus-visible {
  color: var(--white);
}
.contact-sub {
  margin-top: 1rem;
  color: var(--gray-soft);
}
.contact .btn { margin-top: 2rem; }

/* ============================================================
   Footer
   ============================================================ */

.footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.9rem;
}
.footer-tagline {
  font-style: italic;
  color: var(--gray);
}
.footer-meta {
  color: var(--gray-soft);
}
.footer-bottom {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--dark-gray);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--gray);
}
.footer-bottom a { color: var(--accent); }
.footer-bottom a:hover, .footer-bottom a:focus-visible { color: var(--white); }

/* ============================================================
   A11y: focus
   ============================================================ */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}