:root {
  --font: 'Inter', sans-serif;
  --bg: #08090d;
  --surf: #111319;
  --surf2: #181c25;
  --surf3: #1e2330;
  --border: rgba(255,255,255,.08);
  --divider: rgba(255,255,255,.05);
  --text: #f1f3f7;
  --muted: #8d97a8;
  --faint: #505a69;
  --red: #f50520;
  --red-h: #c8041a;
  --green: #25d366;
  --orange: #e8820c;
  --radius: 0;
  --radius-l: 0;
  --radius-xl: 0;
  --radius-f: 0;
  --ease: cubic-bezier(.16,1,.3,1);
  --t: 200ms;
  --shadow-s: 0 8px 24px rgba(0,0,0,.3);
}

*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family: var(--font);
  font-size: clamp(.95rem,.9rem + .25vw,1.05rem);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}
img, iframe { display:block; max-width:100%; }
a { color:inherit; text-decoration:none; }

button, input, textarea, select {
  font: inherit;
  color: inherit;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}

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

.container {
  width:min(calc(100% - 2.5rem),1200px);
  margin-inline:auto;
}

.label {
  font-size:.65rem;
  font-weight:800;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--red);
}

.block-label {
  font-size:.65rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:.6rem;
}

h1 {
  font-size:clamp(2.2rem,4vw+.8rem,4.5rem);
  font-weight:900;
  line-height:1.06;
}

h2 {
  font-size:clamp(1.8rem,2.5vw+.6rem,2.8rem);
  font-weight:800;
  line-height:1.1;
  margin-top:.5rem;
}

h3 {
  font-size:1.05rem;
  font-weight:700;
  margin-bottom:.4rem;
}

.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:.6rem 1.4rem;
  border-radius:0;
  font-size:.82rem;
  font-weight:700;
  transition: transform var(--t) var(--ease), background var(--t), border-color var(--t);
  white-space:nowrap;
  border-color: var(--red);
}

.btn:hover { transform:translateY(-1px); }
.btn--primary { background:var(--red); color:#fff; }
.btn--primary:hover { background:var(--red-h); }
.btn--ghost { border:1px solid var(--border); background:var(--surf); color:var(--muted); }
.btn--ghost:hover { color:var(--text); border-color:rgba(255,255,255,.18); }
.btn--full { width:100%; }
.btn--phone {
  border:1px solid var(--border);
  background:transparent;
  color:var(--text);
  font-size:.78rem;
  font-weight:700;
}
.btn--phone:hover { background:var(--surf2); border-color:rgba(255,255,255,.18); }

.header {
  position:sticky;
  top:0;
  z-index:30;
  backdrop-filter:blur(20px);
  background: rgba(8, 9, 13, 0.78);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom:1px solid var(--divider);
}
.header__inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  min-height:5rem;
}
.logo {
  display:inline-flex;
  align-items:center;
  gap:.75rem;
  flex:0 0 auto;
}
.logo__icon { width:2.5rem; height:2.5rem; color:var(--red); }
.logo strong { font-size:.82rem; font-weight:800; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem;
  font-size: 1.2rem;
  cursor: pointer;
}

.nav {
  display:flex;
  gap:.15rem;
}
.nav a {
  font-size:.78rem;
  font-weight:600;
  padding:.5rem .9rem;
  border-radius:0;
  color:var(--muted);
}
.nav a:hover { color:var(--text); background:rgba(255,255,255,.06); }
.nav a.nav--active { color:var(--text); background:rgba(255,255,255,.1); }

.header__actions {
  display:flex;
  gap:.5rem;
  flex-wrap:nowrap;
}

.hero {
  padding-block:clamp(3rem,8vw,6.5rem) clamp(2.5rem,6vw,5rem);
  background:
    radial-gradient(ellipse at 80% 0%, rgba(245,5,32,.15) 0%, transparent 50%),
    radial-gradient(ellipse at 0% 100%, rgba(245,5,32,.05) 0%, transparent 45%);
}
.hero__grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(2rem,4vw,4rem);
  align-items:center;
}
.hero__left {
  display:flex;
  flex-direction:column;
  gap:1.2rem;
}
.hero__desc {
  color:var(--muted);
  max-width:50ch;
  font-size:.95rem;
}

.tags {
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  margin-bottom:.55rem;
}
.tag {
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.04em;
  padding:.45rem 1rem;
  border-radius:0;
  border:1px solid rgba(255,255,255,.14);
  background:var(--surf2);
  color:var(--text);
}
.tag--dim {
  color:var(--muted);
  border-color:var(--border);
  background:transparent;
}

.tools-inline {
  display:flex;
  align-items:center;
  gap:.45rem;
  padding:.45rem .65rem;
  border-left:3px solid var(--red-h);
  border-radius:0;
  background:rgba(255, 255, 255, 0.05);
}
.tools-inline__label {
  font-size:.55rem;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--red-h);
  white-space:nowrap;
}
.tools-inline__badges {
  display:flex;
  flex-wrap:wrap;
  gap:.3rem;
}
.tool-badge {
  display:inline-flex;
  align-items:center;
  gap:.3rem;
  font-size:.62rem;
  font-weight:700;
  padding:.2rem .55rem;
  border-radius:0;
  border:1px solid var(--border);
  background:var(--surf3);
  color:var(--muted);
}
.tool-badge--accent {
  background:rgba(255, 0, 0, 0.05);
  color:#fff;
  font-weight:800;
}

.contact-bar {
  display:flex;
  align-items:stretch;
  background:var(--surf);
  border:1px solid var(--border);
  border-radius:0;
  overflow:hidden;
}
.cbar__item {
  display:flex;
  align-items:center;
  gap:.6rem;
  padding:.75rem 1rem;
  flex:1;
  min-width:0;
}
.cbar__item:hover { background:var(--surf2); }
.cbar__item--wa:hover { background:rgba(37,211,102,.08); }
.cbar__ico { font-size:1rem; flex:0 0 auto; line-height:1; }
.cbar__lbl {
  display:block;
  font-size:.58rem;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
  line-height:1.2;
}
.cbar__item--wa .cbar__lbl { color:var(--green); }
.cbar__val {
  display:block;
  font-size:.78rem;
  font-weight:700;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.cbar__sep {
  width:1px;
  background:var(--border);
  flex:0 0 auto;
  margin-block:.5rem;
}
.hero__btns {
  display:flex;
  flex-wrap:wrap;
  gap:.75rem;
}

.hero__right {
  position:relative;
}
.hero__right::before {
  content:'';
  position:absolute;
  top:-1rem;
  right:-1rem;
  width:45%;
  height:45%;
  background-image:radial-gradient(circle, rgba(160,160,160,.25) 1.5px, transparent 1.5px);
  background-size:14px 14px;
  pointer-events:none;
}
.hero__right::after {
  content:'';
  position:absolute;
  bottom:-1rem;
  left:-1rem;
  width:25%;
  height:25%;
  background-image:radial-gradient(circle, rgba(160,160,160,.18) 1.5px, transparent 1.5px);
  background-size:14px 14px;
  pointer-events:none;
}

.mosaic-wrap {
  position:relative;
  padding:1rem;
}
.mosaic-wrap::before,
.mosaic-wrap::after,
.corner-tr,
.corner-bl {
  content:'';
  position:absolute;
  width:1.15rem;
  height:1.15rem;
  border-color:var(--red);
  border-style:solid;
  pointer-events:none;
}
.mosaic-wrap::before { top:0; left:0; border-width:3px 0 0 3px; }
.mosaic-wrap::after { bottom:0; right:0; border-width:0 3px 3px 0; }
.corner-tr { top:0; right:0; border-width:3px 3px 0 0; }
.corner-bl { bottom:0; left:0; border-width:0 0 3px 3px; }

.mosaic {
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:.45rem;
  aspect-ratio:1 / .78;
}

.tile {
  position:relative;
  overflow:hidden;
  border-radius:0;
  background:var(--surf3);
  min-height:0;
  cursor: pointer;
}
.tile img {
  width:100%;
  height:100%;
  object-fit:cover;
  filter:grayscale(100%) brightness(.62);
  transform:scale(1.03);
  transition:filter .35s var(--ease), transform .45s var(--ease);
}
.tile:hover img,
.tile:focus-visible img {
  filter:grayscale(0%) brightness(.9);
  transform:scale(1.07);
}
.tile::after {
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to top, rgba(8,9,13,.88) 0%, rgba(8,9,13,.08) 60%, transparent 100%);
}
.tile__info {
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:2;
  padding:.7rem;
}
.tile__cat {
  display:block;
  font-size:.5rem;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--red);
  margin-bottom:.15rem;
}
.tile__title {
  font-size:.74rem;
  font-weight:700;
  line-height:1.15;
  color:#fff;
}
.tile--open img {
  filter: grayscale(0%) brightness(.9);
  transform: scale(1.07);
}

.section {
  padding-block:clamp(3rem,7vw,5.5rem);
}
.section--alt {
  background:var(--surf);
  border-block:1px solid var(--divider);
}
.section__sub {
  color:var(--muted);
  font-size:.92rem;
  max-width:52ch;
  margin-top:.6rem;
  margin-bottom:2rem;
}

.cards {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:1rem;
  margin-top:2rem;
}
.card {
  background:var(--surf);
  border:1px solid var(--border);
  border-radius:0;
  padding:1.75rem;
}
.card--featured {
  background: linear-gradient(160deg, #2e0910 0%, var(--surf) 60%);
  background: linear-gradient(160deg, color-mix(in srgb,var(--red) 9%,var(--surf)) 0%, var(--surf) 60%);
}
.card__num {
  font-size:.62rem;
  font-weight:800;
  letter-spacing:.18em;
  color:var(--red);
  margin-bottom:.9rem;
}
.card p {
  color:var(--muted);
  font-size:.88rem;
  line-height:1.55;
}

.ukony-grid {
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:1.25rem;
}
.ukony-col {
  background:var(--surf2);
  border:1px solid var(--border);
  border-radius:0;
  padding:1.5rem;
}
.ukony-col__title {
  display:flex;
  align-items:center;
  gap:.6rem;
  font-size:.95rem;
  font-weight:800;
  margin-bottom:1rem;
  padding-bottom:.85rem;
  border-bottom:1px solid var(--border);
}
.ukony-list {
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:.45rem;
}
.ukony-list li {
  font-size:.84rem;
  color:var(--muted);
  line-height:1.45;
  padding-left:1rem;
  position:relative;
}
.ukony-list li::before {
  content:'›';
  position:absolute;
  left:0;
  color:var(--red);
  font-weight:700;
}

/* --- REFERENCE (PŘED A PO) --- */
.ref-list {
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 6vw, 5rem);
  margin-top: 2.5rem;
}

.ref-item {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.ref-item--reverse {
  flex-direction: row-reverse;
}

.ref-media {
  flex: 1;
  display: flex;
  gap: .5rem;
  min-width: 0;
}

.ref-video-box {
  position: relative;
  flex: 1;
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.ref-video-box video,
.ref-video-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ref-badge {
  position: absolute;
  top: 0;
  left: 0;
  background: var(--faint);
  color: #fff;
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .3rem .7rem;
  z-index: 2;
}

.ref-badge--after {
  background: var(--red);
}

.ref-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.ref-text h3 {
  font-size: 1.3rem;
  margin-bottom: 0;
}

.ref-text p strong {
  color: var(--text);
}

.ref-text p {
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.6;
}

.ref-more {
  margin-top: 3.5rem;
  display: flex;
  justify-content: center;
}

.contact-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:2rem;
  align-items:start;
  margin-top:2rem;
}
.cboxes {
  display:flex;
  flex-direction:column;
  gap:.625rem;
  margin-bottom:1.25rem;
}
.cbox {
  display:flex;
  flex-direction:column;
  gap:.2rem;
  border:1px solid var(--border);
  background:var(--surf);
  border-radius:0;
  padding:1rem 1.15rem;
}
.cbox--wa {
  background:linear-gradient(135deg, rgba(37,211,102,.1), var(--surf));
}
.cbox__lbl {
  font-size:.6rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}
.cbox--wa .cbox__lbl { color:var(--green); }
.cbox__val { font-size:.96rem; font-weight:700; }
.cbox__note { font-size:.68rem; color:var(--faint); }
.mapwrap {
  border-radius:0;
  overflow:hidden;
  border:1px solid var(--border);
}
.mapwrap iframe {
  width:100%;
  height:260px;
  border:0;
}

.form {
  background:var(--surf);
  border:1px solid var(--border);
  border-radius:0;
  padding:1.5rem;
  display:flex;
  flex-direction:column;
}
.form h3 { margin-bottom:.5rem; }
.form__label {
  display:block;
  margin-top:.8rem;
  margin-bottom:.25rem;
  font-size:.68rem;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--muted);
}
.form input,
.form select,
.form textarea {
  width:100%;
  padding:.72rem .9rem;
  border:1px solid var(--border);
  background:var(--surf2);
  border-radius:0;
  font-size:.9rem;
}
.form textarea {
  resize:vertical;
  min-height:110px;
}
.form .btn { margin-top:1rem; }
.form__status {
  font-size:.78rem;
  color:var(--muted);
  min-height:1.4em;
  margin-top:.5rem;
}

.footer {
  border-top:1px solid var(--divider);
  background:color-mix(in srgb,var(--surf) 55%,transparent);
}
.footer__inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding-block:1.25rem;
  font-size:.76rem;
  color:var(--muted);
}
.footer__inner a { color:var(--red); }

.form__row {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:.75rem;
}

@media (max-width:960px) {
  .hero__grid { grid-template-columns:1fr; }
  .hero__right { order:-1; }
  .contact-grid { grid-template-columns:1fr; }
  .ukony-grid { grid-template-columns:1fr; }
  .mosaic { aspect-ratio:auto; }

  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--divider);
  }
  .nav--open {
    display: flex;
  }
}

@media (max-width:700px) {
  .container { width:calc(100% - 1rem); }
  .header__inner {
    min-height:4.25rem;
    gap:.6rem;
  }
  .logo strong { font-size:.8rem; }
  .header__actions {
    gap:.35rem;
    margin-left:auto;
  }
  .btn--ghost { display:none; }
  .btn--phone,
  .btn--primary {
    min-height:38px;
    padding:.4rem .75rem;
    font-size:.7rem;
  }

  .hero {
    padding-block:1.1rem 2.5rem;
  }
  .hero__grid {
    gap:1rem;
  }
  .hero__left {
    gap:1rem;
  }
  .hero__desc {
    font-size:.9rem;
  }
  .tags {
    gap:.35rem;
    margin-bottom:.35rem;
  }
  .tag {
    padding:.32rem .72rem;
    font-size:.62rem;
  }

  .tools-inline {
    gap:.35rem;
    padding:.3rem 0 0;
    border:none;
    background:transparent;
    flex-wrap:wrap;
  }
  .tools-inline__label {
    width:100%;
    margin-bottom:.05rem;
  }
  .tools-inline__badges {
    gap:.25rem;
  }
  .tool-badge {
    font-size:.56rem;
    padding:.16rem .45rem;
  }

  .mosaic-wrap { padding:.55rem; }
  .mosaic {
    gap:.3rem;
    grid-template-columns:repeat(3, minmax(0, 1fr));
    aspect-ratio:1 / .82;
  }
  .tile__info {
    padding:.45rem;
  }
  .tile__cat {
    font-size:.42rem;
  }
  .tile__title {
    font-size:.58rem;
  }

  .contact-bar {
    flex-direction:column;
  }
  .cbar__sep {
    width:auto;
    height:1px;
    margin:0 .75rem;
  }

  .cards,
  .ukony-col,
  .form {
    padding:1.1rem;
  }

  .form__row {
    grid-template-columns:1fr;
  }

  /* REFERENCE NA MOBILU */
  .ref-item,
  .ref-item--reverse {
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem;
  }

  .ref-media {
    flex-direction: row;
  }
}

@media (max-width:480px) {
  .mosaic {
    aspect-ratio:1 / .9;
  }
  .tile__title {
    font-size:.55rem;
  }
}

@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after {
    transition-duration:.01ms !important;
  }
}

/* --- IKONA PŘEHRÁVÁNÍ PRO VIDEA (V PRAVÉM HORNÍM ROHU) --- */
.ref-video-box::after {
  content: '';
  position: absolute;
  top: 14px; /* Odsazení od horního okraje */
  right: 14px; /* Odsazení od pravého okraje */
  width: 40px; /* Menší rozměr, aby to v rohu sedělo elegantně */
  height: 40px;
  background-color: rgba(8, 9, 13, 0.6);
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  z-index: 3;
  pointer-events: none; /* Kliknutí projde skrz rovnou na video */
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), background-color 0.3s var(--ease), border-color 0.3s var(--ease);
  /* Ikona bílého trojúhelníku */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E");
  background-size: 20px;
  background-position: 55% center;
  background-repeat: no-repeat;
  backdrop-filter: blur(2px);
  transform: scale(1);
}

/* Animace při najetí myší na box */
.ref-video-box:hover::after {
  background-color: var(--red);
  border-color: var(--red);
  transform: scale(1.1); /* Tlačítko se v rohu mírně zvětší */
}

/* Skrytí tlačítka, když video reálně hraje */
.ref-video-box.is-playing::after {
  opacity: 0;
  transform: scale(0.8); /* Tlačítko se plynule zmenší do ztracena */
}