:root {
    --cyan: #00f5ff;
    --cyan-dim: #00b4c8;
    --cyan-dark: #003d47;
    --bg: #020c10;
    --bg3: #071820;
    --panel: rgba(0,245,255,0.04);
    --border: rgba(0,245,255,0.18);
    --border-bright: rgba(0,245,255,0.5);
    --text: #c8eef2;
    --text-dim: #8ecfdb;
    --red: #ff3c5a;
    --amber: #ffb700;
    --green: #00ff88;
    --font-mono: 'Space Mono', monospace;
    --font-display: 'Chakra Petch', sans-serif;
    --font-body: 'Exo 2', sans-serif;
  }
 
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  img { max-width: 100%; height: auto; display: block; }
  html { scroll-behavior: smooth; overflow-x: hidden; }
 
  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    overflow-x: hidden;
    cursor: crosshair;
    min-height: 100vh;
  }
 
  /* HOLOLINKY */
  body::after {
    content: '';
    position: fixed; inset: 0; z-index: 9999; pointer-events: none;
    background: repeating-linear-gradient(
      0deg, transparent, transparent 2px,
      rgba(0,0,0,0.07) 2px, rgba(0,0,0,0.07) 4px
    );
  }
 
  /* HVĚZDIČKYY */
  #starfield {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background:
      radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,80,120,0.3) 0%, transparent 70%),
      var(--bg);
  }
  #starfield canvas { position: absolute; inset: 0; }
 
  /* HUD MŘÍŽKA */
  #hud-grid {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image:
      linear-gradient(rgba(0,245,255,0.022) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,245,255,0.022) 1px, transparent 1px),
      linear-gradient(135deg, transparent 49.5%, rgba(0,245,255,0.018) 49.5%, rgba(0,245,255,0.018) 50.5%, transparent 50.5%);
    background-size: 60px 60px, 60px 60px, 120px 120px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(0,0,0,0.6) 0%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(0,0,0,0.6) 0%, transparent 100%);
  }
 
  /* SVATOZÁŘ KURZORU */
  #cursor-glow {
    position: fixed; pointer-events: none; z-index: 9998;
    width: 280px; height: 280px; border-radius: 50%;
    background: radial-gradient(circle, rgba(0,245,255,0.045) 0%, transparent 70%);
    transform: translate(-50%, -50%);
  }
 
  /* ROHOVÁ DEKORACE (CYANOVÝ ROHY) */
  .corner-tl, .corner-br {
    position: fixed; width: 36px; height: 36px; pointer-events: none; z-index: 999;
  }
  .corner-tl { top: 64px; left: 14px;
    border-top: 1px solid var(--cyan-dim); border-left: 1px solid var(--cyan-dim); }
  .corner-br { bottom: 14px; right: 14px;
    border-bottom: 1px solid var(--cyan-dim); border-right: 1px solid var(--cyan-dim); }
 
  ::-webkit-scrollbar { width: 6px; }
  ::-webkit-scrollbar-track { background: var(--bg); }
  ::-webkit-scrollbar-thumb { background: var(--cyan-dark); }
  ::-webkit-scrollbar-thumb:hover { background: var(--cyan-dim); }
 
  /* NAV */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: nowrap; overflow: hidden;
    padding: 0 3rem; height: 56px;
    background: rgba(2,12,16,0.9);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
  }
  .nav-back {
    font-family: var(--font-mono);
    font-size: 0.75rem; letter-spacing: 0.15em;
    color: var(--text-dim); text-decoration: none;
    text-transform: uppercase;
    transition: color 0.2s;
    display: flex; align-items: center; gap: 0.5rem;
  }
  .nav-back::before { content: '←'; color: var(--cyan); }
  .nav-back:hover { color: var(--cyan); }
  .nav-mission-id {
    font-family: var(--font-mono);
    font-size: 0.68rem; letter-spacing: 0.25em;
    color: var(--cyan-dim); text-transform: uppercase;
  }
  .nav-status {
    font-family: var(--font-mono);
    font-size: 0.7rem; color: var(--green); letter-spacing: 0.1em;
  }
  .nav-status::before { content: '● '; animation: blink 1.8s infinite; }
  @keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }
 
  /* WRAP STRÁNKY */
  .page { max-width: 1100px; margin: 0 auto; padding: 5rem 2rem 6rem; position: relative; z-index: 1; }
 
  /* HEADER MISE */
  .mission-header {
    padding: 3rem 0 3rem;
    border-bottom: 1px solid var(--border);
    position: relative;
    opacity: 0; animation: fadeUp 0.7s 0.2s forwards;
  }

  .mission-header::before {
    content: '';
    display: block; width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--cyan) 0%, rgba(0,245,255,0.3) 40%, transparent 100%);
    clip-path: polygon(0 0, 100% 0, calc(100% - 40px) 100%, 0 100%);
    margin-bottom: 2.5rem;
  }
 
  .mission-breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.68rem; letter-spacing: 0.25em;
    color: var(--cyan-dim); text-transform: uppercase;
    margin-bottom: 1rem;
    display: flex; align-items: center; gap: 0.8rem;
  }
  .mission-breadcrumb span { color: var(--border-bright); }
 
  .mission-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.8rem);
    font-weight: 700; color: #fff;
    letter-spacing: 0.06em; text-transform: uppercase;
    line-height: 1.1; margin-bottom: 1.5rem;
  }
  .mission-title .accent { color: var(--cyan); }
 
  .mission-meta-row {
    display: flex; flex-wrap: wrap; gap: 2rem; align-items: center;
    margin-bottom: 1.5rem;
  }
  .meta-item {
    display: flex; flex-direction: column; gap: 0.2rem;
  }
  .meta-label {
    font-family: var(--font-mono);
    font-size: 0.58rem; letter-spacing: 0.2em;
    color: var(--cyan-dim); text-transform: uppercase;
  }
  .meta-value {
    font-family: var(--font-mono);
    font-size: 0.8rem; color: var(--text);
    letter-spacing: 0.05em;
  }
  .meta-divider {
    width: 1px; height: 36px;
    background: var(--border); flex-shrink: 0;
  }
 
  .mission-status-badge {
    font-family: var(--font-mono);
    font-size: 0.68rem; letter-spacing: 0.15em;
    text-transform: uppercase; padding: 0.35rem 1rem;
    border: 1px solid; display: inline-flex; align-items: center; gap: 0.5rem;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  }
  .status-active   { color: var(--green); border-color: var(--green); background: rgba(0,255,136,0.05); }
  .status-wip      { color: var(--amber); border-color: var(--amber); background: rgba(255,183,0,0.05); }
  .status-archived { color: var(--text-dim); border-color: var(--border); background: var(--panel); }
  .status-active::before   { content: '●'; animation: blink 2s infinite; }
  .status-wip::before      { content: '◐'; }
  .status-archived::before { content: '○'; }
 
  .mission-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1rem; }
  .tech-badge {
    font-family: var(--font-mono);
    font-size: 0.65rem; letter-spacing: 0.1em;
    color: var(--cyan);
    background: rgba(0,245,255,0.07);
    border: 1px solid rgba(0,245,255,0.2);
    padding: 0.25rem 0.65rem; text-transform: uppercase;
  }
 
  /* HLAVNÍ LAYOUT */
  .mission-body {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 3rem; margin-top: 3.5rem;
    width: 100%; min-width: 0;
    opacity: 0; animation: fadeUp 0.7s 0.5s forwards;
  }
 
  /* GALERIE */
  .gallery { display: flex; flex-direction: column; gap: 1.2rem; }
 
  /* levý sloupec musí mít min-width: 0 aby se pořád držel v mřížce */
  .mission-content { min-width: 0; }
 
  /* Hlavní obrázek - ten velkej */
  .img-primary {
    position: relative;
    aspect-ratio: 16/9;
    width: 100%; max-width: 100%;
    background: var(--bg3);
    border: 1px solid var(--border);
    overflow: hidden;
    clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
    transition: border-color 0.3s;
  }
  .img-primary:hover { border-color: var(--border-bright); }
  .img-primary img {
    width: 100%; height: 100%; object-fit: cover;
    display: block;
    filter: brightness(0.9) saturate(0.85);
    transition: filter 0.4s, transform 0.4s;
  }
  .img-primary:hover img { filter: brightness(1) saturate(1); transform: scale(1.02); }
 
  /* HUD ohraničení hlavního obrázku */
  .img-primary::before {
    content: '';
    position: absolute; top: 8px; left: 8px;
    width: 20px; height: 20px; z-index: 2; pointer-events: none;
    border-top: 1px solid var(--cyan);
    border-left: 1px solid var(--cyan);
  }
  .img-primary::after {
    content: '';
    position: absolute; bottom: 8px; right: 8px;
    width: 20px; height: 20px; z-index: 2; pointer-events: none;
    border-bottom: 1px solid var(--cyan);
    border-right: 1px solid var(--cyan);
  }
 
  /* label přes obrázek */
  .img-label {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 0.5rem 0.9rem;
    background: linear-gradient(0deg, rgba(2,12,16,0.85) 0%, transparent 100%);
    font-family: var(--font-mono);
    font-size: 0.6rem; letter-spacing: 0.18em;
    color: var(--cyan-dim); text-transform: uppercase;
    z-index: 2;
  }
 
  /* placeholder když obrázek není dostupný */
  .img-placeholder {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 0.8rem;
    color: var(--border); pointer-events: none;
  }
  .img-placeholder-icon { font-size: 2.5rem; opacity: 0.4; }
  .img-placeholder-text {
    font-family: var(--font-mono); font-size: 0.62rem;
    letter-spacing: 0.2em; text-transform: uppercase; opacity: 0.5;
  }
 
  /* řádek vedlejších obrázků */
  .img-secondary-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.8rem; }
 
  .img-secondary {
    position: relative;
    aspect-ratio: 4/3;
    background: var(--bg3);
    border: 1px solid var(--border);
    overflow: hidden;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
    cursor: pointer; transition: border-color 0.3s;
  }
  .img-secondary:hover { border-color: var(--border-bright); }
  .img-secondary img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    filter: brightness(0.8) saturate(0.7);
    transition: filter 0.3s, transform 0.3s;
  }
  .img-secondary:hover img { filter: brightness(1) saturate(1); transform: scale(1.05); }
  .img-secondary .img-label { font-size: 0.52rem; }
 
  /* stejné HUD rohové ohraničení jako u hlavního obrázku */
  .img-secondary::before {
    content: ''; position: absolute; top: 5px; left: 5px;
    width: 10px; height: 10px; z-index: 2;
    border-top: 1px solid rgba(0,245,255,0.5);
    border-left: 1px solid rgba(0,245,255,0.5);
  }
 
  /* POPIS */
  .mission-desc { margin-top: 2rem; }
  .block-title {
    font-family: var(--font-display);
    font-size: 0.78rem; font-weight: 700;
    letter-spacing: 0.18em; color: var(--cyan);
    text-transform: uppercase; margin-bottom: 1rem;
    display: flex; align-items: center; gap: 0.8rem;
  }
  .block-title::after {
    content: ''; flex: 1; height: 1px;
    background: linear-gradient(90deg, var(--border), transparent);
  }
  .mission-desc p {
    font-size: 1rem; line-height: 1.85;
    color: var(--text-dim); font-weight: 300;
  }
  .mission-desc p + p { margin-top: 1rem; }
  .mission-desc strong { color: var(--text); font-weight: 600; }
 
  /* SIDEBAR */
  .mission-sidebar { display: flex; flex-direction: column; gap: 1.2rem; }
 
  .sidebar-panel {
    border: 1px solid var(--border);
    background: var(--panel);
    padding: 1.4rem;
    clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
    position: relative; overflow: hidden;
    transition: border-color 0.3s;
  }
  .sidebar-panel:hover { border-color: var(--border-bright); }
  .sidebar-panel::after {
    content: ''; position: absolute; top: -20px; right: -20px;
    width: 60px; height: 60px; pointer-events: none;
    background: repeating-linear-gradient(
      -45deg, transparent, transparent 4px,
      rgba(0,245,255,0.04) 4px, rgba(0,245,255,0.04) 5px
    );
  }
 
  .sidebar-panel-title {
    font-family: var(--font-mono);
    font-size: 0.6rem; letter-spacing: 0.22em;
    color: var(--cyan-dim); text-transform: uppercase;
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
  }
 
  /* statistiky mise */
  .stat-list { display: flex; flex-direction: column; gap: 0.8rem; }
  .stat-line {
    display: flex; justify-content: space-between; align-items: baseline;
    font-family: var(--font-mono); font-size: 0.72rem;
  }
  .stat-line-key { color: var(--text-dim); letter-spacing: 0.06em; }
  .stat-line-val { color: var(--text); letter-spacing: 0.06em; }
  .stat-line-val.highlight { color: var(--cyan); }
 
  /* odkazy */
  .link-list { display: flex; flex-direction: column; gap: 0.7rem; }
  .mission-link {
    display: flex; align-items: center; gap: 0.8rem;
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--border);
    background: transparent;
    text-decoration: none; color: var(--text-dim);
    font-family: var(--font-mono); font-size: 0.72rem;
    letter-spacing: 0.1em; text-transform: uppercase;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
  }
  .mission-link:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(0,245,255,0.04); }
  .mission-link-icon { font-size: 1rem; min-width: 1.2rem; }
  .mission-link span:last-child { margin-left: auto; color: var(--cyan); opacity: 0; transition: opacity 0.2s; }
  .mission-link:hover span:last-child { opacity: 1; }
 
  /* časová osa / logy */
  .log-list { display: flex; flex-direction: column; gap: 0; }
  .log-entry {
    display: flex; gap: 0.9rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid rgba(0,245,255,0.07);
    position: relative;
  }
  .log-entry:last-child { border-bottom: none; }
  .log-date {
    font-family: var(--font-mono); font-size: 0.6rem;
    color: var(--cyan-dim); letter-spacing: 0.08em;
    white-space: nowrap; min-width: 52px; padding-top: 0.1rem;
  }
  .log-text {
    font-family: var(--font-body); font-size: 0.82rem;
    color: var(--text-dim); font-weight: 300; line-height: 1.5;
  }
  .log-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--cyan-dark); border: 1px solid var(--cyan-dim);
    flex-shrink: 0; margin-top: 0.35rem;
  }
 
  /* SEKCE VÝZEV / VÝSLEDKŮ */
  .mission-extra {
    margin-top: 3.5rem;
    display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
    opacity: 0; animation: fadeUp 0.7s 0.8s forwards;
  }
  .extra-block {
    border: 1px solid var(--border); background: var(--panel);
    padding: 1.6rem;
    clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  }
  .extra-block ul {
    list-style: none; display: flex; flex-direction: column; gap: 0.7rem;
    margin-top: 0.8rem;
  }
  .extra-block ul li {
    font-size: 0.9rem; line-height: 1.7;
    color: var(--text-dim); font-weight: 300;
    padding-left: 1.2rem; position: relative;
  }
  .extra-block ul li::before {
    content: '›'; position: absolute; left: 0;
    color: var(--cyan); font-size: 1rem;
  }
 
  /* ZPÁTKY NA MISE! */
  .mission-footer {
    margin-top: 4rem; padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem;
    opacity: 0; animation: fadeUp 0.7s 1s forwards;
  }
  .btn {
    font-family: var(--font-mono);
    font-size: 0.75rem; letter-spacing: 0.15em;
    text-decoration: none; text-transform: uppercase;
    padding: 0.75rem 1.8rem;
    border: 1px solid var(--cyan); color: var(--cyan);
    background: transparent; cursor: pointer;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
    display: inline-block;
  }
  .btn:hover { background: var(--cyan); color: var(--bg); box-shadow: 0 0 28px rgba(0,245,255,0.35); }
  .btn-ghost { border-color: var(--border); color: var(--text-dim); }
  .btn-ghost:hover { background: var(--panel); color: var(--text); box-shadow: none; }
  .mission-nav-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
 
  /* VYJEVENÍ PŘI SCROLLU */
  .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s, transform 0.6s; }
  .reveal.visible { opacity: 1; transform: none; }
 
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: none; }
  }
 
  /* LIGHTBOX */
  .lightbox {
    position: fixed; inset: 0; z-index: 10000;
    background: rgba(2,10,14,0.96);
    backdrop-filter: blur(10px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: opacity 0.3s;
  }
  .lightbox.open { opacity: 1; pointer-events: all; }
 
  .lightbox-img-wrap {
    position: relative;
    display: flex; align-items: center; justify-content: center;
  }
  .lightbox-img-wrap img {
    max-width: 80vw; max-height: 80vh;
    border: 1px solid var(--border-bright);
    display: block;
    clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
    transition: opacity 0.2s;
  }
  .lightbox-img-wrap img.fading { opacity: 0; }
 
  .lightbox-counter {
    position: absolute; bottom: -1.8rem; left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono); font-size: 0.62rem;
    letter-spacing: 0.2em; color: var(--cyan-dim);
    white-space: nowrap;
  }
 
  .lightbox-close {
    position: absolute; top: 1.5rem; right: 1.5rem;
    font-family: var(--font-mono); font-size: 0.75rem;
    letter-spacing: 0.2em; color: var(--text-dim);
    cursor: pointer; text-transform: uppercase;
    border: 1px solid var(--border); padding: 0.4rem 0.9rem;
    background: transparent; transition: color 0.2s, border-color 0.2s;
  }
  .lightbox-close:hover { color: var(--cyan); border-color: var(--cyan); }
 
  .lightbox-nav {
    position: absolute; top: 50%; z-index: 2;
    transform: translateY(-50%);
    font-family: var(--font-mono); font-size: 1.8rem; line-height: 1;
    color: var(--text-dim); background: rgba(2,12,16,0.85);
    border: 1px solid var(--border);
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; flex-shrink: 0;
    clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px));
    transition: color 0.2s, border-color 0.2s, background 0.2s;
  }
  #lightbox-prev { left: 2rem; }
  #lightbox-next { right: 2rem; }
  .lightbox-nav:hover {
    color: var(--cyan); border-color: var(--cyan);
    background: rgba(0,245,255,0.06);
  }
  .lightbox-nav:disabled { opacity: 0.2; cursor: default; }
  .lightbox-nav:disabled:hover { color: var(--text-dim); border-color: var(--border); background: rgba(2,12,16,0.85); }
 
  /* RESPONZIVITA */
  @media (max-width: 900px) {
    .mission-body { grid-template-columns: 1fr; }
    .mission-sidebar { flex-direction: row; flex-wrap: wrap; }
    .sidebar-panel { flex: 1; min-width: 240px; }
    .mission-extra { grid-template-columns: 1fr; }
    .img-secondary-row { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 600px) {
    nav { padding: 0 1rem; }
    .nav-mission-id { display: none; }
    .page { padding: 4.5rem 1rem 4rem; }
    .mission-meta-row { gap: 1rem; }
    .meta-divider { display: none; }
    .mission-footer { flex-direction: column; }
    .mission-nav-btns { width: 100%; }
    .btn { width: 100%; text-align: center; }
 
    /* horizontální scrollování vedlejších obrázků při zobrazení stránky na mobilu */
    .img-secondary-row {
      display: flex;
      flex-direction: row;
      overflow-x: auto;
      overflow-y: visible;
      gap: 0.7rem;
      margin-left: -1rem;
      margin-right: -1rem;
      padding-left: 1rem;
      padding-right: 1rem;
      padding-bottom: 0.6rem;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .img-secondary-row::-webkit-scrollbar { display: none; }
    .img-secondary {
      flex: 0 0 60vw;
      max-width: 220px;
      aspect-ratio: 4/3;
    }
    .img-secondary-row::after {
      content: '';
      flex: 0 0 1rem;
    }
  }