:root {
    --bg-light: #30b2da; /* Main Light Background */
    --card-light: #a6b3ff; /* Slightly lighter surface for card */
    --accent-blue: #007BFF; /* Primary Accent Blue */
    --text-dark: #000000; /* Main Text Color */
    --completed-green: #28A745; /* Green for completed tasks */
    --delete-red: #DC3545;
    
    /* Refined Neumorphism Shadows */
    --shadow-dark: rgba(163, 177, 198, 0.4); 
    --shadow-light: rgba(255, 255, 255, 0.7);
    --inner-shadow-dark: rgba(163, 177, 198, 0.3);
    --inner-shadow-light: rgba(255, 255, 255, 0.5);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    /* Set background to a solid color initially */
    background-color: var(--bg-light);
    color: var(--text-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 0; /* Remove padding from body */
    margin: 0;
    background-image: url(background.jpg);
}

/* New: Background Image Layer */
.background-image {
    position: fixed; /* Keep it stationary */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    
    /* 1. REPLACE THIS URL with your image path */
    background-image: url(background.jpg); 
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    
    /* 2. Apply a strong overlay (black transparent layer) and blur */
    filter: blur(5px) grayscale(50%); /* Subtle blur and desaturation for a soft look */
    z-index: -1; /* Place it behind everything */
}
 p {
    background-color: aliceblue;
    margin: 0 10px;
    padding: 2%;
    border-radius: 20px;
 }
/* New: Wrapper to center content and ensure z-index */
.app-wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px; /* Re-apply padding here */
    position: relative;
    z-index: 1; /* Keep content above background */
    
    /* Add a semi-transparent white wash over the whole app to soften the image contrast */
    background-color: rgba(255, 255, 255, 0.4); 
}

.title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--accent-blue);
    text-shadow: 1px 1px 2px var(--shadow-dark);
}

.subtitle {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-dark);
    opacity: 0.7;
}

.todo-card {
    width: 100%;
    max-width: 650px;
    padding: 30px;
    background-color: var(--card-light);
    border-radius: 30px;
    /* Core Neumorphic effect */
    box-shadow: 
        8px 8px 16px var(--shadow-dark),
        -8px -8px 16px var(--shadow-light);
}

/* Input Group */
.input-group {
    display: flex;
    margin-bottom: 20px;
    border-radius: 15px;
    overflow: hidden; 
    /* Inner shadow for the recessed look */
    box-shadow: 
        inset 4px 4px 8px var(--inner-shadow-dark),
        inset -4px -4px 8px var(--inner-shadow-light);
}

#taskInput {
    flex-grow: 1;
    padding: 15px 20px;
    font-size: 1rem;
    border: none;
    background: none;
    color: var(--text-dark);
    outline: none;
}

.add-button {
    background-color: var(--accent-blue);
    color: white;
    width: 60px; /* Fixed width for the plus icon button */
    padding: 0; 
    border: none;
    font-size: 1.5rem; /* Larger icon */
    cursor: pointer;
    transition: all 0.2s;
    
    /* Raised button look */
    box-shadow: 
        3px 3px 6px var(--shadow-dark),
        -3px -3px 6px var(--shadow-light);
}

.add-button:hover {
    background-color: #0069D9;
}

.add-button:active {
    /* Press in effect */
    box-shadow: 
        inset 2px 2px 5px var(--inner-shadow-dark),
        inset -2px -2px 5px var(--inner-shadow-light);
    transform: scale(0.98);
}

/* --- COMPETITIVE CONTROL LAYOUT --- */
.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.05); 
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    margin-bottom: 15px;
}

.filters {
    display: flex;
    border-radius: 10px;
    overflow: hidden;
    /* Simulates a single recessed unit for the filter group */
    box-shadow: 
        inset 2px 2px 4px var(--inner-shadow-dark),
        inset -2px -2px 4px var(--inner-shadow-light);
}

.filters button {
    background-color: var(--card-light);
    border: none;
    color: var(--text-dark);
    padding: 8px 15px;
    margin: 0; /* Remove internal margins to merge buttons */
    border-right: 1px solid rgba(0, 0, 0, 0.05); /* Subtle separator */
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.filters button:last-child {
    border-right: none;
}

.filters button:hover {
    background-color: rgba(255, 255, 255, 0.6);
}

.filters button.active {
    background-color: var(--accent-blue);
    color: white;
    font-weight: 700;
    box-shadow: none; /* Active button looks flush or pressed-in */
}

.actions-info {
    display: flex;
    align-items: center;
}

.item-count {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-right: 15px; /* Spacing from clear button */
}

.clear-btn {
    background: none;
    border: none;
    color: var(--text-dark);
    opacity: 0.8;
    cursor: pointer;
    transition: color 0.2s;
    font-size: 0.9rem;
    padding: 5px 10px;
    border-radius: 5px;
}

.clear-btn:hover {
    opacity: 1;
    color: var(--delete-red);
    background-color: rgba(0, 0, 0, 0.05);
}

/* Task List and Items (Remaining styles from previous version) */
.task-list {
    list-style: none;
    padding: 0;
}

.task-item {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: background-color 0.3s;
}

.task-item:last-child {
    border-bottom: none;
}

/* Checkbox Design */
.checkbox {
    min-width: 24px;
    height: 24px;
    background-color: var(--card-light);
    border-radius: 50%;
    margin-right: 15px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s;
    
    /* Raised circle */
    box-shadow: 
        3px 3px 6px var(--shadow-dark),
        -3px -3px 6px var(--shadow-light);
}

.checkbox.completed {
    background-color: var(--completed-green);
    /* Pressed look when completed */
    box-shadow: 
        inset 2px 2px 4px rgba(0, 0, 0, 0.4),
        inset -2px -2px 4px rgba(255, 255, 255, 0.4);
}

.checkbox i {
    color: white;
    font-size: 14px;
    transform: scale(0.5);
    opacity: 0;
    transition: transform 0.3s ease-out, opacity 0.3s;
}

.checkbox.completed i {
    transform: scale(1);
    opacity: 0;
    
}

.task-text {
    flex-grow: 1;
    font-size: 1.1rem;
    transition: color 0.3s, text-decoration 0.3s;
    user-select: none;
}

.task-item.completed .task-text {
    color: var(--completed-green);
    text-decoration: line-through;
    opacity: 0.6;
}

/* Actions (Edit/Delete) */
.actions {
    display: flex;
    gap: 10px;
    margin-left: 20px;
    opacity: 0; 
    transition: opacity 0.3s;
}

.task-item:hover .actions {
    opacity: 1; 
}

.actions button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    transition: color 0.2s;
    padding: 5px 0; 
}

.edit-btn {
    color: var(--accent-blue);
}

.delete-btn {
    color: var(--delete-red);
}

.edit-btn:hover {
    color: #0056B3;
}

.delete-btn:hover {
    color: #CC0000;
}

/* --- Responsive Design (Mobile Optimizations) --- */
@media (max-width: 600px) {
    .todo-card {
        padding: 20px;
        border-radius: 20px;
    }

    .input-group {
        flex-direction: column;
        gap: 10px;
        box-shadow: none;
    }

    .add-button {
        width: 100%;
        padding: 12px 20px;
        box-shadow: 3px 3px 6px var(--shadow-dark);
        font-size: 1rem;
    }

    /* Adjust controls for smaller screens */
    .controls {
        flex-wrap: wrap;
        gap: 10px;
    }

    .filters {
        order: 1;
        flex-grow: 1;
        width: 100%;
        /* The filter group takes full width, maintaining the fused look */
    }

    .actions-info {
        order: 2; 
        justify-content: space-between;
        width: 100%;
    }

    .item-count {
        margin-right: 0;
    }

    /* Stack task content on mobile */
    .task-item {
        flex-wrap: wrap;
    }
    
    .task-text {
        width: 100%;
        order: 2;
        margin-left: 39px; 
        margin-top: 5px;
    }
    
    .checkbox {
        order: 1;
        min-width: 22px;
        height: 22px;
    }

    .actions {
        order: 3;
        width: 100%;
        justify-content: flex-end;
        margin: 5px 0 0 0;
        opacity: 1;
    }
}

/* =======================================
   MODAL STYLING (Neumorphism)
   ======================================= */
   .modal {
    display: none; /* Hidden by default */
    position: fixed; 
    z-index: 1000; /* High z-index to cover everything */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(51, 51, 51, 0.4); /* Dark, soft overlay */
    backdrop-filter: blur(4px); /* Subtle blur on what's behind it */
    padding-top: 50px;
}

.modal-content {
    background-color: var(--card-light);
    margin: 5% auto; /* Center the modal vertically and horizontally */
    padding: 30px;
    border-radius: 25px;
    width: 90%;
    max-width: 450px;
    position: relative;
    
    /* Neumorphic shadow for the modal card */
    box-shadow: 
        10px 10px 20px var(--shadow-dark),
        -10px -10px 20px var(--shadow-light);
}

.close-btn {
    color: var(--text-dark);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.close-btn:hover,
.close-btn:focus {
    color: var(--delete-red);
}

h2 {
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.modal-input {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    font-size: 1rem;
    border: none;
    background: var(--card-light);
    color: var(--text-dark);
    border-radius: 10px;
    outline: none;
    
    /* Pressed/Recessed input field */
    box-shadow: 
        inset 3px 3px 6px var(--inner-shadow-dark),
        inset -3px -3px 6px var(--inner-shadow-light);
    transition: box-shadow 0.2s;
}

.modal-input:focus {
    box-shadow: 
        inset 1px 1px 2px var(--inner-shadow-dark),
        inset -1px -1px 2px var(--inner-shadow-light);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

.modal-save-btn, .modal-cancel-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    
    /* Raised button look */
    box-shadow: 
        3px 3px 6px var(--shadow-dark),
        -3px -3px 6px var(--shadow-light);
}

.modal-save-btn {
    background-color: var(--accent-blue);
    color: white;
}

.modal-save-btn:hover {
    background-color: #0069D9;
}

.modal-cancel-btn {
    background-color: var(--card-light);
    color: var(--text-dark);
}

.modal-cancel-btn:hover {
    background-color: #E8E8E8;
}

.modal-save-btn:active, .modal-cancel-btn:active {
    /* Pressed in effect */
    box-shadow: 
        inset 2px 2px 5px var(--inner-shadow-dark),
        inset -2px -2px 5px var(--inner-shadow-light);
    transform: scale(0.98);
}

/* Responsive adjustment for small screens */
@media (max-width: 480px) {
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    .modal-actions {
        flex-direction: column;
        gap: 10px;
    }
    .modal-save-btn, .modal-cancel-btn {
        width: 100%;
    }
}