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

body { font-family: 'Arial', sans-serif; background: #f9f9f9; }

header {
  position: fixed; top: 0; width: 100%; height: 60px;
  background: #fff; display: flex; align-items: center;
  justify-content: space-between; padding: 0 20px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1); z-index: 100;
}

header h1 { color: #ff0000; font-size: 1.8em; cursor: pointer; }

header input[type="text"] {
  width: 300px; padding: 5px 10px; border-radius: 20px; border: 1px solid #ccc;
}

main { display: flex; margin-top: 80px; }

/* Sidebar */
.sidebar { width: 200px; background: #fff; height: calc(100vh - 80px); padding: 20px; box-shadow: 2px 0 5px rgba(0,0,0,0.05); }
.sidebar h3 { margin-bottom: 15px; color: #555; }
.sidebar ul { list-style: none; }
.sidebar ul li { margin: 10px 0; cursor: pointer; color: #333; }
.sidebar ul li:hover { color: #ff0000; }

/* Content area */
.content { flex: 1; padding: 20px; display: flex; flex-wrap: wrap; gap: 20px; justify-content: flex-start; }

/* Video cards */
.video-card { background: #fff; width: 300px; border-radius: 10px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); overflow: hidden; cursor: pointer; transition: transform 0.2s; }
.video-card:hover { transform: scale(1.03); }
.video-card video { width: 100%; height: 170px; object-fit: cover; }
.video-card h3 { margin: 10px; font-size: 16px; }
.video-card p { margin: 0 10px 10px; color: #555; font-size: 14px; }

/* Forms */
form { background: #fff; padding: 15px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); width: 300px; }
input, button { width: 100%; margin: 5px 0; padding: 8px; border-radius: 5px; border: 1px solid #ccc; }
button { background: #ff0000; color: #fff; border: none; font-weight: bold; cursor: pointer; }
button:hover { background: #cc0000; }

/* Admin panel */
.admin-panel { background: #fff; padding: 15px; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); margin-top: 20px; }
.admin-panel h3 { margin-bottom: 10px; }
.admin-panel ul { list-style: none; }
.admin-panel ul li { margin: 5px 0; display: flex; justify-content: space-between; }
.admin-panel ul li button { width: auto; padding: 3px 8px; font-size: 12px; background: #ff0000; }
.admin-panel ul li button:hover { background: #cc0000; }