/* === SIDEBAR lateral fijo con animación fluida === */
.sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 260px;
  height: 100%;
  background: #fff;
  box-shadow: -2px 0 12px rgba(0,0,0,.15);
  padding: 25px 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  transform: translateX(100%);
  transition: transform 0.5s cubic-bezier(0.68,-0.55,0.27,1.55);
  z-index: 2000;
}

.sidebar.active {
  transform: translateX(0);
}

/* === Links dentro del sidebar === */
.sidebar a.btn,
.sidebar button.btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 600;
  color: #5a4a3b;
  text-decoration: none;
  opacity: 0;
  transform: translateX(20px);
  transition: color 0.3s ease;
  position: relative;
}

.sidebar .btn .menu-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
  flex-shrink: 0;
  display: inline-block;
}

/* Hover */
.sidebar a.btn:hover {
  color: #a0896b;
}

/* Activo */
.sidebar a.btn.active {
  color: #a0896b;
}

.sidebar a.btn.active::before {
  content: "›";
  position: absolute;
  left: -12px;
  font-size: 18px;
  color: #a0896b;
}

/* Animación escalonada */
.sidebar.active a.btn,
.sidebar.active button.btn {
  animation: slideIn 0.4s forwards;
}

.sidebar.active a.btn:nth-child(1) { animation-delay: 0.1s; }
.sidebar.active a.btn:nth-child(2) { animation-delay: 0.2s; }
.sidebar.active a.btn:nth-child(3) { animation-delay: 0.3s; }
.sidebar.active a.btn:nth-child(4) { animation-delay: 0.4s; }
.sidebar.active a.btn:nth-child(5) { animation-delay: 0.5s; }
.sidebar.active a.btn:nth-child(6) { animation-delay: 0.6s; }
.sidebar.active a.btn:nth-child(7) { animation-delay: 0.7s; }

@keyframes slideIn {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* === Texto usuario === */
.sidebar-user {
  margin: 12px 0;
  font-size: 14px;
  font-weight: bold;
  color: #333;
}

/* === Botón de Modo Oscuro === */
#theme-toggle {
  outline: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #a0896b;
  border: none;
  border-radius: 6px;
  padding: 12px 18px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,.1);
  opacity: 0;
  transform: translateX(20px);
  transition: background 0.3s ease, transform 0.25s ease;
}

.sidebar.active #theme-toggle {
  animation: slideIn 0.4s forwards;
  animation-delay: 0s;
}

#theme-toggle:hover {
  background: #8b7355;
  transform: translateY(-2px) scale(1.03);
  opacity: 0.95;
}

/* === Overlay === */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease;
  z-index: 1500;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* === Bloquear scroll === */
body.no-scroll {
  overflow: hidden;
}

/* === Botón Hamburguesa === */
.menu-toggle {
  position: relative;
  width: 28px;
  height: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: none;
  background: none;
  cursor: pointer;
  z-index: 2100;
}

.menu-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background: #333;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-toggle.open .top {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.open .middle {
  opacity: 0;
}
.menu-toggle.open .bottom {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* === Dark mode === */
body.dark .sidebar {
  background: #1e1e1e;
}

body.dark .sidebar a.btn,
body.dark .sidebar button.btn,
body.dark .sidebar-user {
  color: #ddd;
}

body.dark .sidebar a.btn:hover,
body.dark .sidebar button.btn:hover {
  color: #c7a97a;
}

body.dark .sidebar a.btn.active {
  color: #fff;
}

body.dark .sidebar a.btn.active::before {
  color: #c7a97a;
}

body.dark .sidebar button.btn .btn-label {
  color: #ddd;
}

body.dark .sidebar button.btn:hover .btn-label {
  color: #c7a97a;
}

body.dark #theme-toggle {
  background: #8b7355;
}

body.dark #theme-toggle:hover {
  background: #6e5b43;
}

body.dark .menu-toggle span {
  background: #fff;
}