:root{
  --marron:#8b6f47;
  --marron-dark:#6e5432;
  --beige:#f4ede4;
  --beige-card:#fff9f3;
  --accent:#b29366;
  --muted:#5a4326;
}

body{
  background:var(--beige);
  font-family: 'Poppins', system-ui, Arial;
  color:#4b3b2b;
  margin:0;
}

/* ===== Sidebar ===== */
.sidebar{
  position: fixed;
  left:0; top:0; bottom:0;
  width:220px;
  background: linear-gradient(180deg,var(--marron) 0%, #b48a5a 100%);
  color:white;
  padding:18px 12px;
  box-shadow: 2px 0 12px rgba(0,0,0,0.12);
  transition: transform 0.3s ease;
  z-index:1000;
}
.sidebar.active {
  transform: translateX(0);
}

.sidebar .logo{ width:48px; display:block; margin:0 auto 10px;}
.sidebar nav ul{ list-style:none; padding:0; margin:12px 0 0 0;}
.sidebar nav a{ color:white; text-decoration:none; display:block; padding:10px 8px; border-radius:8px; margin-bottom:6px; font-weight:600;}
.sidebar nav a:hover{ background: rgba(255,255,255,0.08); }

/* Toggle button */
#menu-toggle {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
  position: fixed;
  top: 12px; 
  left: 12px;
  z-index: 1100;
  color: var(--marron-dark);
  background: transparent;
  border: none;
  padding: 5px;
}

/* ===== Main Content ===== */
.main-content {
  margin-left: 220px;
  padding: 2rem;
  min-height: 100vh;
  transition: margin-left 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--beige);
  box-sizing: border-box;
}

/* ===== CODIGO PARA EL BOTON DE INICIAR SESIÓN ===== */
.Acceder-button {
  position: fixed;
  top: 20px;          
  right: 20px;       
  background-color: #b48a5a; 
  color: #fffbe6;            
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;     
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
  z-index: 100;
}

.Acceder-button:hover {
  transform: scale(1.05); 
  background-color: #000000;
}

/* ===== Header ===== */
.header {
  width: 90%;
  max-width: 1200px;
  margin: 24px auto 32px auto;
  text-align: center;
  padding: 32px 20px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--marron) 100%);
  border-radius: 16px;
  color: white;
  box-shadow: 0 6px 20px rgba(139, 111, 71, 0.3);
}

.page-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 0 12px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.page-title i {
  font-size: 3rem;
}

.page-subtitle {
  font-size: 1.1rem;
  margin: 0;
  opacity: 0.95;
  font-weight: 500;
}

/* ===== Grid de Seguimientos ===== */
.seguimientos-grid {
  width: 90%;
  max-width: 1200px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
  margin-bottom: 40px;
}

/* ===== Card de Seguimiento ===== */
.seguimiento-card {
  background: var(--beige-card);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.5s ease;
}

.seguimiento-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Header de la card */
.card-header {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: linear-gradient(135deg, #e0d5c7 0%, #c9b8a3 100%);
}

.card-header img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.seguimiento-card:hover .card-header img {
  transform: scale(1.08);
}

.card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(139, 111, 71, 0.95);
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  backdrop-filter: blur(4px);
}

/* Body de la card */
.card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--marron-dark);
  margin: 0 0 6px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-mascota-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: rgba(180, 138, 90, 0.08);
  border-radius: 10px;
  margin-bottom: 8px;
}

.mascota-mini-foto {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
}

.mascota-mini-info {
  flex: 1;
}

.mascota-mini-info h4 {
  margin: 0;
  font-size: 1rem;
  color: var(--marron-dark);
  font-weight: 600;
}

.mascota-mini-info p {
  margin: 2px 0 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.card-info-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  line-height: 1.5;
}

.card-info-row i {
  color: var(--accent);
  font-size: 1.2rem;
  margin-top: 2px;
}

.card-info-row strong {
  color: var(--marron-dark);
  min-width: 110px;
}

.card-text-block {
  background: rgba(180, 138, 90, 0.06);
  padding: 12px;
  border-radius: 8px;
  font-size: 0.92rem;
  line-height: 1.6;
  color: #5a4326;
  border-left: 3px solid var(--accent);
}

.card-text-block strong {
  display: block;
  color: var(--marron-dark);
  margin-bottom: 6px;
  font-size: 0.9rem;
}

/* Footer de la card */
.card-footer {
  padding: 16px 20px;
  background: rgba(180, 138, 90, 0.08);
  border-top: 1px solid rgba(180, 138, 90, 0.15);
  display: flex;
  align-items: center;
  gap: 10px;
}

.adoptante-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  object-fit: cover;
}

.adoptante-info {
  flex: 1;
}

.adoptante-info p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.adoptante-info h5 {
  margin: 2px 0 0 0;
  font-size: 0.95rem;
  color: var(--marron-dark);
  font-weight: 600;
}

.fecha-info {
  font-size: 0.8rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Estado de salud badge */
.salud-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 0.85rem;
  font-weight: 600;
}

.salud-excelente {
  background: #d4edda;
  color: #155724;
}

.salud-bueno {
  background: #d1ecf1;
  color: #0c5460;
}

.salud-regular {
  background: #fff3cd;
  color: #856404;
}

.salud-atencion {
  background: #f8d7da;
  color: #721c24;
}

/* ===== Loading y No Data ===== */
.loading, .no-data {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}

.loading i, .no-data i {
  font-size: 4rem;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}

.loading p, .no-data p {
  font-size: 1.1rem;
  margin: 0;
}

/* ===== Responsive ===== */
@media(max-width:768px){
  .sidebar { 
    transform: translateX(-100%); 
    position:fixed; 
  }
  .sidebar.active { 
    transform: translateX(0); 
  }
  #menu-toggle { 
    display:block; 
  }
  .main-content { 
    margin-left:0; 
    padding:20px 10px; 
  }
  .seguimientos-grid {
    grid-template-columns: 1fr;
    width: 100%;
  }
  .page-title {
    font-size: 2rem;
  }
  .page-title i {
    font-size: 2.2rem;
  }
  .Acceder-button {
    top: 10px;
    right: 10px;
    padding: 8px 16px;
    font-size: 0.9rem;
  }
}

@media(max-width:480px){
  .card-header {
    height: 180px;
  }
  .page-title {
    font-size: 1.5rem;
  }
}