@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins', sans-serif;
}
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body{
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:flex-start;   /* 👈 important change */
    padding:40px 20px;
    overflow-x:hidden;
    overflow-y:auto;

    background:
    radial-gradient(circle at top left,#8b5cf6 0%,transparent 25%),
    radial-gradient(circle at bottom right,#3b82f6 0%,transparent 25%),
    linear-gradient(135deg,#eef2ff,#f5f3ff);
}

/* Floating Background Blur */
body::before,
body::after{
    content:'';
    position:absolute;
    width:300px;
    height:300px;
    border-radius:50%;
    filter:blur(100px);
    z-index:-1;
}

body::before{
    background:#8b5cf6;
    top:-80px;
    left:-80px;
    opacity:0.3;
}

body::after{
    background:#3b82f6;
    bottom:-80px;
    right:-80px;
    opacity:0.3;
}

.container{
    width:100%;
    max-width: 950px;
    padding:50px;
    border-radius:35px;

    background:rgba(255,255,255,0.65);

    backdrop-filter:blur(20px);

    border:1px solid rgba(255,255,255,0.4);

    box-shadow:
    0 10px 40px rgba(0,0,0,0.08),
    inset 0 1px 1px rgba(255,255,255,0.6);

    animation:fadeUp 1s ease;
}

/* Logo */

.logo{
    width:100px;
    height:100px;
    margin:auto;

    border-radius:30px;

    background:linear-gradient(135deg,#8b5cf6,#3b82f6);

    display:flex;
    justify-content:center;
    align-items:center;

    font-size:45px;
    color:white;

    box-shadow:
    0 10px 30px rgba(99,102,241,0.4);

    animation:float 3s ease-in-out infinite;
}
.logo i{
    font-size:45px;
    color:white;
}

h1{
    text-align:center;
    margin-top:25px;
    font-size:60px;
    font-weight:700;

    background:linear-gradient(135deg,#4f46e5,#7c3aed);

    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

.subtitle{
    text-align:center;
    margin-top:10px;
    color:#6b7280;
    font-size:20px;
    font-weight:400;
}

/* Stats */

.stats{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:25px;

    margin-top:50px;
}

.card{
    padding:35px;
    border-radius:25px;

    background:rgba(255,255,255,0.75);

    backdrop-filter:blur(10px);

    border:1px solid rgba(255,255,255,0.4);

    box-shadow:
    0 8px 25px rgba(0,0,0,0.05);

    transition:0.4s;
}

.card:hover{
    transform:translateY(-8px) scale(1.02);
}

.card h2{
    font-size:48px;
    font-weight:700;
    color:#3b82f6;
}

.card p{
    margin-top:10px;
    color:#6b7280;
    letter-spacing:1px;
    font-size:18px;
}

.purple{
    color:#8b5cf6 !important;
}

.green{
    color:#10b981 !important;
}

/* Input Section */

.task-box{
    margin-top:40px;

    background:rgba(255,255,255,0.75);

    border-radius:25px;

    padding:18px;

    display:flex;
    align-items:center;
    gap:20px;

    border:1px solid rgba(255,255,255,0.4);

    backdrop-filter:blur(10px);

    box-shadow:
    0 8px 25px rgba(0,0,0,0.05);
}

.task-box input{
    flex:1;
    border:none;
    background:transparent;
    outline:none;

    font-size:18px;
    color:#374151;

    padding-left:10px;
}

.task-box input::placeholder{
    color:#9ca3af;
}

.task-box button{
    border:none;
    padding:18px 35px;

    border-radius:18px;

    background:linear-gradient(135deg,#8b5cf6,#3b82f6);

    color:white;
    font-size:17px;
    font-weight:600;

    cursor:pointer;

    transition:0.4s;

    box-shadow:
    0 10px 25px rgba(99,102,241,0.35);
}

.task-box button:hover{
    transform:translateY(-5px);
}

/* Task List */

#task-list{
    list-style:none;
    margin-top:35px;
}

#task-list li{
    display:flex;
    justify-content:space-between;
    align-items:center;

    padding:22px 25px;
    margin-bottom:18px;

    border-radius:22px;

    background:rgba(255,255,255,0.75);

    border:1px solid rgba(255,255,255,0.4);

    backdrop-filter:blur(10px);

    box-shadow:
    0 8px 20px rgba(0,0,0,0.05);

    transition:0.4s;

    animation:slideUp 0.4s ease;
}

#task-list li:hover{
    transform:translateY(-5px);
}

.task-text{
    display:flex;
    align-items:center;
    gap:15px;

    font-size:18px;
    color:#374151;

    cursor:pointer;
}

.task-text i{
    font-size:22px;
    color:#6366f1;
}

.completed span{
    text-decoration:line-through;
    color:#9ca3af;
}

.completed .task-text i{
    color:#10b981;
}

.delete-btn{
    color:#ef4444;
    font-size:20px;
    cursor:pointer;

    transition:0.3s;
}

.delete-btn:hover{
    transform:scale(1.2);
}

/* Animations */

@keyframes float{
    0%,100%{
        transform:translateY(0);
    }
    50%{
        transform:translateY(-10px);
    }
}

@keyframes fadeUp{
    from{
        opacity:0;
        transform:translateY(30px);
    }
    to{
        opacity:1;
        transform:translateY(0);
    }
}

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

/* Responsive */

@media(max-width:900px){

    body{
        align-items:flex-start;
    }

    .container{
        width:100%;
        padding:20px;
        border-radius:20px;
    }

    h1{
        font-size:34px;
    }

    .stats{
        grid-template-columns:1fr;
    }

    .task-box{
        flex-direction:column;
    }

    .task-box button{
        width:100%;
    }
}