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

body {
  font-family: 'Poppins', sans-serif;
  background-color: #f0f0f0;
  color: #333;
  line-height: 1.6;
}

h1 {
  font-size: 2em;
  margin-bottom: 20px;
  color: #fff;
}

h2, h3 {
  color: #2c3e50;
}

a {
  text-decoration: none;
  color: #2980b9;
}

a:hover {
  color: #3498db;
}

button {
  background: linear-gradient(90deg, #2980b9 0%, #6dd5fa 100%);
  color: #fff;
  border: none;
  padding: 12px 28px;
  cursor: pointer;
  font-size: 1.08em;
  font-weight: 600;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(41, 128, 185, 0.12);
  transition: background 0.3s, transform 0.2s, box-shadow 0.2s;
}

button:hover {
  background: linear-gradient(90deg, #3498db 0%, #38b6ff 100%);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 16px rgba(41, 128, 185, 0.18);
}

input, textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #b0bec5;
  border-radius: 8px;
  background: #fff;
  font-size: 1.05em;
  font-family: 'Poppins', sans-serif;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  box-shadow: 0 1px 3px rgba(44, 62, 80, 0.04);
}

input:focus, textarea:focus {
  border-color: #2980b9;
  box-shadow: 0 2px 8px rgba(41, 128, 185, 0.10);
}

input::placeholder, textarea::placeholder {
  color: #90a4ae;
  opacity: 1;
}

header {
  background: linear-gradient(90deg, #2c3e50 0%, #2980b9 100%);
  color: #fff;
  padding: 32px 20px 24px 20px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(44, 62, 80, 0.12);
  letter-spacing: 1px;
}

footer {
  position: relative;
  background-color: #2c3e50;
  color: white;
  text-align: center;
  padding: 10px;
  position: fixed;
  width: 100%;
  bottom: 0;
}

main {
  padding: 20px;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 28px;
  background: #fff;
  box-shadow: 0 4px 24px rgba(41, 128, 185, 0.10);
  border-radius: 12px;
  overflow: hidden;
}

th, td {
  padding: 16px 20px;
}

th {
  background: linear-gradient(90deg, #2980b9 0%, #6dd5fa 100%);
  color: #fff;
  text-align: left;
  font-weight: 700;
  letter-spacing: 0.5px;
  border-bottom: 2px solid #e3eaf1;
  position: sticky;
  top: 0;
  z-index: 2;
}

td {
  border-bottom: 1px solid #e3eaf1;
  color: #2c3e50;
  font-size: 1.04em;
}

tbody tr:nth-child(even) {
  background-color: #f4fafd;
}

tbody tr:hover {
  background: #eaf6fb;
  transition: background 0.2s;
}

.container-input {
  width: 100%;
  display: flex;
  gap: 10px;
  justify-content: center;
  align-items: center;
}

.logo {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 50px;
  height: 50px;
}

.container-principal {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  height: calc(100vh - 500px);
  margin: auto;
  padding-left: 20px;
}

.container-list:nth-child(even) {
  border-left: 4px solid #2980b9;
}

.container-list-participants {
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  height: calc(100vh - 500px);
  margin: auto;
  padding-left: 20px;
}

.container-table {
  overflow-x: auto;
  width: 100%;
  height: calc(100vh - 500px);
}

.container-redes { 
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
}