/* ===============================
   BODY Y LAYOUT GENERAL
   =============================== */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  background-color: #f0f4f8;
  color: #333;
  min-height: 100vh;
}

/* ===============================
   LOGIN / REGISTER CARD
   =============================== */
.login-card, .register-card {
  max-width: 400px;
  margin: 80px auto;
  padding: 30px 25px;
  background: linear-gradient(145deg, #ffffff, #e6f0ff);
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-card:hover, .register-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.login-card h2, .register-card h2 {
  text-align: center;
  margin-bottom: 25px;
  color: #1a1a1a;
}

.login-card input, .register-card input,
.login-card button, .register-card button,
.login-card select, .register-card select {
  width: 100%;
  margin: 8px 0;
  font-size: 16px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #bbb;
  box-sizing: border-box;
}

/* ===============================
   BARRA LATERAL
   =============================== */
#sidebar {
  width: 220px;
  background: linear-gradient(to bottom, #4CAF50, #1E90FF);
  color: white;
  padding: 20px;
  box-sizing: border-box;
  min-height: 100vh;
  transition: transform 0.3s ease;
}

#sidebar h2 {
  margin-top: 0;
  font-size: 22px;
  color: #fff;
}

#sidebar ul {
  list-style: none;
  padding: 0;
}

#sidebar li {
  padding: 12px 0;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
  border-radius: 6px;
}

#sidebar li:hover {
  background-color: rgba(255,255,255,0.2);
  color: #ffffcc;
}

/* ===============================
   SIDEBAR COLAPSABLE MOVIL
   =============================== */
#sidebar.open {
  transform: translateX(0);
}

@media (max-width: 768px) {
  #sidebar {
    position: fixed;
    top: 0;
    left: -220px;
    height: 100%;
    z-index: 200;
  }
}

/* ===============================
   TOPBAR
   =============================== */
#topbar {
  position: fixed;
  top: 0;
  left: 220px;
  right: 0;
  height: 60px;
  background: #f9f9f9;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 20px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
  z-index: 100;
  transition: left 0.3s ease;
}

#topbar #userName {
  margin-right: 12px;
  font-weight: bold;
  color: #1E3A8A;
}

#avatar {
  border-radius: 50%;
  width: 42px;
  height: 42px;
  object-fit: cover;
  border: 2px solid #1E3A8A;
  transition: transform 0.2s ease;
}

#avatar:hover {
  transform: scale(1.1);
}

/* ===============================
   CONTENIDO PRINCIPAL
   =============================== */
#content {
  margin-left: 220px;
  padding: 80px 20px 20px 20px;
  width: calc(100% - 220px);
  box-sizing: border-box;
}

/* ===============================
   SECCIONES
   =============================== */
section {
  margin-bottom: 20px;
  padding: 20px;
  background: linear-gradient(120deg, #ffffff, #e0f7fa);
  border-radius: 12px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

section:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* ===============================
   INPUTS Y BOTONES
   =============================== */
input, select {
  width: 100%;
  padding: 10px;
  margin: 6px 0;
  font-size: 16px;
  border-radius: 8px;
  border: 1px solid #aaa;
  box-sizing: border-box;
  transition: border 0.2s ease;
}

input:focus, select:focus {
  border: 2px solid #4CAF50;
  outline: none;
}

button {
  width: 100%;
  padding: 10px;
  margin: 6px 0;
  font-size: 16px;
  background: linear-gradient(to right, #4CAF50, #1E90FF);
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

button:hover {
  background: linear-gradient(to right, #45a049, #1C86EE);
  transform: translateY(-2px);
}

/* ===============================
   CHAT
   =============================== */
#chat {
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid #ccc;
  padding: 10px;
  border-radius: 8px;
  background: #f0f0f0;
}

#chat p {
  padding: 8px;
  margin: 5px 0;
  border-radius: 6px;
  background: linear-gradient(to right, #e0f7fa, #b2ebf2);
  word-break: break-word;
}

/* ===============================
   BOTONES ADMIN Y ADULTOS
   =============================== */
.adminOnly {
  display: none;
}
.admin .adminOnly {
  display: block;
}

.uploadOnlyAdult {
  display: none;
}
.adult .uploadOnlyAdult {
  display: inline-block;
  margin-top: 10px;
}

/* ===============================
   RESPONSIVE
   =============================== */
@media (max-width: 768px) {
  #topbar {
    left: 0;
  }
  #content {
    margin-left: 0;
    padding: 100px 10px 20px 10px;
    width: 100%;
  }
}

/* ===============================
   TARJETAS ADMIN
   =============================== */
.admin-card {
  background: #ffffff;
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.admin-card h3 {
  margin-top: 0;
  color: #1f2937;
}

.admin-card table {
  width: 100%;
  border-collapse: collapse;
}

.admin-card th, .admin-card td {
  padding: 10px;
  border-bottom: 1px solid #ddd;
  text-align: left;
}

.admin-card th {
  background: #f3f4f6;
}

.admin-card button {
  background: #6366f1;
  color: white;
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.admin-card button:hover {
  background: #4f46e5;
}

/* ===============================
   HINTS / TEXTOS PEQUEÑOS
   =============================== */
.hint {
  font-size: 13px;
  color: #666;
}