* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-image: url("https://img.freepik.com/premium-photo/white-elegant-desktop-from-business-tools-office-design-studio-shot-top-view_1257223-572.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 1200px;
    text-align: center;
}

h1 {
    font-family: "Playfair Display", serif;
    font-size: clamp(30px, 5vw, 50px);
    margin-bottom: 40px;
    color: #222;
    text-shadow: 0 4px 10px rgba(255,255,255,0.8);
}

.board {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
}

/* List Styling */
.list {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    width: 350px;
    height: 500px;
    display: flex;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

#list1 { border-top: 5px solid #ff4d6d; }
#list2 { border-top: 5px solid #56568f; }
#list3 { border-top: 5px solid #96e6a1; }

.list h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
    text-align: left;
}

/* Scrollable area for cards */
.cards-container {
    flex-grow: 1;
    overflow-y: auto;
    padding-right: 5px;
    margin-bottom: 10px;
}

.cards-container::-webkit-scrollbar {
    width: 5px;
}

.cards-container::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
    border-radius: 10px;
}

/* Card Styling */
.card {
    background: rgba(255, 255, 255, 0.7);
    padding: 15px;
    margin-bottom: 12px;
    border-radius: 12px;
    cursor: grab;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: all 0.2s ease;
    position: relative;
}

.card:hover {
    transform: translateY(-3px);
    background: white;
}

.card.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.delete-btn {
    cursor: pointer;
    font-size: 14px;
    opacity: 0.3;
    transition: opacity 0.2s;
}

.card:hover .delete-btn {
    opacity: 1;
}

/* Input when creating task */
.temp-input {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 2px dashed #ff4d6d;
    background: rgba(255,255,255,0.8);
    outline: none;
    margin-bottom: 10px;
    font-family: inherit;
}

/* Add Button anchored to bottom */
.add-wrapper {
    margin-top: auto;
    display: flex;
    justify-content: center;
    padding-top: 10px;
}

.add-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff4d6d, #ff758f);
    color: white;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(255, 77, 109, 0.4);
    transition: transform 0.3s ease;
}

.add-btn:hover {
    transform: scale(1.1) rotate(90deg);
}

@media (max-width: 768px) {
    .list { width: 100%; height: 400px; }
}