*{ margin:0; padding:0; box-sizing:border-box; font-family:Segoe UI; }
body{
  background:#020617;
  color:white;
  overflow-x:hidden;
}

.bg{
  position:fixed; inset:0;
  background:
    radial-gradient(circle at top left, rgba(34,197,94,0.12), transparent 30%),
    radial-gradient(circle at bottom right, rgba(59,130,246,0.08), transparent 30%);
  z-index:-1;
}

.settings-layout{
  display:flex;
  min-height:100vh;
}

.sidebar{
  width:260px;
  background:rgba(255,255,255,0.04);
  border-right:1px solid rgba(255,255,255,0.05);
  padding:30px;
  backdrop-filter:blur(20px);
  display:flex;
  flex-direction:column;
  position:relative;
  z-index:2;
}

.logo{
  font-size:34px;
  font-weight:bold;
  color:#22c55e;
  margin-bottom:40px;
}

.menu{
  display:flex;
  flex-direction:column;
  gap:14px;
}

.menu-item{
  display:block;
  padding:16px;
  border-radius:18px;
  text-decoration:none;
  color:white;
  background:rgba(255,255,255,0.04);
  transition:0.25s;
  border:1px solid transparent;
}
.menu-item:hover{
  background:rgba(34,197,94,0.15);
  border-color:rgba(34,197,94,0.22);
}
.menu-item.active{
  background:rgba(34,197,94,0.18);
  border-color:rgba(34,197,94,0.3);
}

.main{
  flex:1;
  padding:50px;
  overflow-y:auto;
  max-height:100vh;
  position:relative;
  z-index:2;
}
.main h1{
  font-size:58px;
  margin-bottom:40px;
}

.card{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:28px;
  padding:30px;
  margin-bottom:30px;
  backdrop-filter:blur(20px);
}
.card h2{
  margin-bottom:20px;
  font-size:28px;
}
.card p{
  color:rgba(255,255,255,0.7);
  line-height:1.8;
}
.card.danger{
  border-color:rgba(255,0,0,0.2);
}

.card input,
.card select{
  width:100%;
  padding:14px 18px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.08);
  background:rgba(255,255,255,0.05);
  color:white;
  font-size:15px;
  outline:none;
  margin-bottom:12px;
  transition:0.2s;
}
.card input:focus,
.card select:focus{
  border-color:rgba(34,197,94,0.3);
}
.card input::placeholder{
  color:rgba(255,255,255,0.35);
}

.card button{
  padding:12px 24px;
  border:none;
  border-radius:14px;
  cursor:pointer;
  background:#22c55e;
  color:black;
  font-weight:600;
  font-size:14px;
  transition:0.25s;
}
.card button:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 24px rgba(34,197,94,0.25);
}

.theme-grid{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.theme-btn{
  padding:14px 22px;
  border:none;
  border-radius:16px;
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  transition:0.25s;
  min-width:100px;
  text-align:center;
}
.theme-btn:hover{
  transform:translateY(-3px);
  box-shadow:0 6px 20px rgba(0,0,0,0.3);
}

.memory-search{
  margin-bottom:16px;
}
#memoryList{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:16px;
  max-height:320px;
  overflow-y:auto;
}
.memory-item{
  padding:14px 18px;
  border-radius:14px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.04);
  transition:0.2s;
}
.memory-item:hover{
  background:rgba(34,197,94,0.06);
  border-color:rgba(34,197,94,0.15);
}
.memory-add{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.memory-add input{
  flex:1;
  min-width:140px;
}

.delete-btn{
  margin-top:16px;
  padding:16px 26px;
  border:none;
  border-radius:18px;
  cursor:pointer;
  background:#ef4444;
  color:white;
  font-weight:bold;
  font-size:14px;
  transition:0.25s;
}
.delete-btn:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 24px rgba(239,68,68,0.3);
}

.logout-btn{
  width:100%;
  padding:14px;
  margin-top:20px;
  border-radius:16px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  color:white;
  cursor:pointer;
  font-size:15px;
  transition:0.25s;
}
.logout-btn:hover{
  background:rgba(239,68,68,0.12);
  border-color:rgba(239,68,68,0.2);
  color:#ef4444;
}

/* Mobile toggle */
.mobile-toggle{
  display:none;
  position:fixed;
  top:16px;
  left:16px;
  z-index:100;
  width:44px;
  height:44px;
  border:none;
  border-radius:14px;
  background:rgba(255,255,255,0.06);
  color:white;
  font-size:20px;
  cursor:pointer;
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.06);
  transition:0.2s;
}
.mobile-toggle:hover{
  background:rgba(34,197,94,0.15);
}
.sidebar.open{
  display:flex !important;
}
.sidebar-overlay{
  display:none;
}

/* RESPONSIVE */
@media(max-width:900px){
  .sidebar{
    display:none;
    position:fixed;
    left:0;
    top:0;
    height:100vh;
    z-index:50;
    width:280px;
  }
  .mobile-toggle{
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .main{
    padding:30px;
    padding-top:72px;
  }
  .main h1{
    font-size:42px;
  }
  .sidebar-overlay{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.6);
    z-index:49;
    backdrop-filter:blur(4px);
  }
  .sidebar-overlay.open{
    display:block;
  }
}

/* =========================
   THEMES
========================= */
body.dark{ background:#020617; color:white; }
body.emerald{ background:#021b12; color:white; }
body.emerald .logo{ color:#22c55e; }
body.blue{ background:#07111f; color:white; }
body.blue .logo{ color:#3b82f6; }
body.purple{ background:#13071f; color:white; }
body.purple .logo{ color:#a855f7; }
body.purple .menu-item.active{ border-color:rgba(168,85,247,0.4); background:rgba(168,85,247,0.12); }
body.red{ background:#1f0707; color:white; }
body.red .logo{ color:#ef4444; }
body.red .menu-item.active{ border-color:rgba(239,68,68,0.4); background:rgba(239,68,68,0.12); }