:root {
  --bg: #0a0a1a;
  --bg2: #12122a;
  --bg3: #1a1a3a;
  --text: #e8e8ff;
  --text2: #9999cc;
  --accent: #6c63ff;
  --accent2: #ff6584;
  --gold: #ffd700;
  --card-bg: rgba(255,255,255,0.05);
  --card-border: rgba(255,255,255,0.1);
  --shadow: rgba(108, 99, 255, 0.3);
  --radius: 12px;
}

body.light {
  --bg: #f0f4ff;
  --bg2: #e0e8ff;
  --bg3: #d0d8f0;
  --text: #111133;
  --text2: #445577;
  --card-bg: rgba(255,255,255,0.7);
  --card-border: rgba(0,0,0,0.1);
  --shadow: rgba(108, 99, 255, 0.15);
}

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

body {
  font-family: 'Exo 2', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

body.dark::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, white 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 10%, white 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 50%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 40% 70%, white 0%, transparent 100%),
    radial-gradient(1px 1px at 10% 80%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 90%, white 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 55%, rgba(255,255,255,0.4) 0%, transparent 100%);
  background-size: 300px 300px, 500px 500px, 200px 200px, 400px 400px, 600px 600px, 250px 250px, 350px 350px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--bg2);
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 3px;
}

nav { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.nav-btn {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--text2);
  border-radius: 50px;
  cursor: pointer;
  font-family: 'Exo 2', sans-serif;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.nav-btn:hover, .nav-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

#theme-toggle {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text);
  padding: 0.5rem 0.8rem;
  border-radius: 50px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.2s;
}
#theme-toggle:hover { background: var(--bg3); }

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  position: relative;
  z-index: 1;
}

.tab { display: none; }
.tab.active { display: block; }

h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle { color: var(--text2); margin-bottom: 1.5rem; }

.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.filter-btn {
  padding: 0.4rem 1rem;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--text2);
  border-radius: 50px;
  cursor: pointer;
  font-family: 'Exo 2', sans-serif;
  font-size: 0.85rem;
  transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.filter-bar select {
  padding: 0.4rem 0.8rem;
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  font-family: 'Exo 2', sans-serif;
}

#launches-count { color: var(--text2); font-size: 0.9rem; margin-left: auto; }

/* =====================
   OBJEKTY GRID + KARTY
   ===================== */

.objekty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.2rem;
}

/* Karta má pevnou výšku — všechny stejně velké */
.objekt-karta {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
  height: 260px;          /* pevná výška karty */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}
.objekt-karta:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--shadow);
}

/* Obrázek — pevná výška, object-fit zajistí správné oříznutí */
.objekt-karta img {
  width: 100%;
  height: 170px;          /* pevná výška obrázku */
  object-fit: cover;      /* ořízne, nezdeformuje */
  object-position: center;
  display: block;
  flex-shrink: 0;
}

/* Emoji fallback (když není obrázek) */
.objekt-emoji {
  font-size: 4.5rem;
  text-align: center;
  padding: 1.2rem 1rem 0.3rem;
  display: block;
  line-height: 1;
  flex-shrink: 0;
}

.objekt-nazev {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  text-align: center;
  padding: 0.5rem 0.8rem;
  color: var(--text);
  width: 100%;
}

/* Overlay při hoveru */
.objekt-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108,99,255,0.95), rgba(255,101,132,0.95));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s;
}
.objekt-karta:hover .objekt-overlay { opacity: 1; }

.overlay-nazev {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.5rem;
}

.overlay-info { font-size: 0.75rem; color: rgba(255,255,255,0.9); line-height: 1.5; }
.overlay-info span { display: block; margin-bottom: 0.2rem; }

.fav-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0,0,0,0.4);
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  font-size: 1rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s;
}
.fav-btn:hover { transform: scale(1.2); }

/* ================
   STARTY RAKET
   ================ */

.launches-list { display: flex; flex-direction: column; gap: 1rem; }

.launch-karta {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  transition: border-color 0.2s;
}
.launch-karta:hover { border-color: var(--accent); }

.launch-nazev {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.launch-detail { font-size: 0.85rem; color: var(--text2); line-height: 1.6; }
.launch-detail strong { color: var(--text); }

.launch-right { text-align: right; min-width: 140px; }

.odpocet {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 700;
}

.launch-status {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.5rem;
}
.status-go { background: rgba(0,200,100,0.2); color: #00c864; }
.status-tbd { background: rgba(255,165,0,0.2); color: orange; }
.status-success { background: rgba(100,200,255,0.2); color: #64c8ff; }

.sledovat-btn {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.2s;
  margin-top: 0.5rem;
  font-family: 'Exo 2', sans-serif;
}
.sledovat-btn:hover, .sledovat-btn.active {
  background: var(--accent);
  color: white;
}

/* ====
   ISS
   ==== */

.iss-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.iss-info-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.iss-info-box.wide { grid-column: 1 / -1; }

.iss-info-box h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.iss-stat {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--card-border);
  font-size: 0.9rem;
  color: var(--text2);
}
.iss-stat strong { color: var(--text); }

.iss-info-box p { color: var(--text2); line-height: 1.7; font-size: 0.9rem; margin-bottom: 1rem; }

.iss-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.fact {
  background: var(--bg2);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text2);
  line-height: 1.5;
}
.fact strong { color: var(--text); display: block; }

.crew-clen {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--card-border);
  font-size: 0.9rem;
}
.crew-avatar { font-size: 1.5rem; }
.crew-jmeno { font-weight: 500; }
.crew-role { color: var(--text2); font-size: 0.8rem; }

.btn-primary {
  margin-top: 1rem;
  padding: 0.6rem 1.4rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  font-family: 'Exo 2', sans-serif;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.85; }

/* ======
   MODAL
   ====== */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}
.modal.hidden { display: none; }

.modal-content {
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 400px;
  width: 100%;
  position: relative;
}

#modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
}

.loading { text-align: center; padding: 3rem; color: var(--text2); font-size: 1.1rem; }
.chyba { text-align: center; padding: 2rem; color: var(--accent2); }

/* ==============
   RESPONZIVITA
   ============== */

@media (max-width: 700px) {
  header { padding: 0.8rem 1rem; }
  .logo { font-size: 1rem; }
  nav { gap: 0.3rem; }
  .nav-btn { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
  main { padding: 1rem; }
  h1 { font-size: 1.5rem; }
  .objekty-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .objekt-karta { height: 220px; }
  .objekt-karta img { height: 130px; }
  .launch-karta { grid-template-columns: 1fr; }
  .launch-right { text-align: left; }
  .iss-grid { grid-template-columns: 1fr; }
  .iss-facts { grid-template-columns: repeat(2, 1fr); }
  .objekt-overlay { display: none; }
}.no-img {
  width: 100%;
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: var(--bg3);
  color: var(--text2);
  flex-shrink: 0;
}