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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-image: url('1.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    color: #2e2d1d;
    min-height: 100vh;
    padding: 2rem;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(212, 217, 200, 0.03);
    z-index: -1;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    font-size: 3rem;
    color: #d0e8d8;
    margin-bottom: 0.5rem;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.subtitle {
    color: #b2e0c7;
    font-size: 1.1rem;
    text-align: center;
    margin-bottom: 3rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.input-area {
    background: rgba(20, 35, 30, 0.75);
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border: 1px solid rgba(80, 100, 85, 0.3);
    backdrop-filter: blur(10px);
}

.input-wrap {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

input[type="text"] {
    flex: 1;
    padding: 1rem 1.5rem;
    border: 2px solid rgba(80, 100, 85, 0.4);
    border-radius: 6px;
    font-size: 1rem;
    background: rgba(30, 45, 40, 0.6);
    color: #d0e8d8;
}

input[type="text"]:focus {
    outline: none;
    border-color: #6b9080;
    background: rgba(30, 45, 40, 0.8);
}

input[type="text"]::placeholder {
    color: #8fb5a0;
}

#dateTime {
    padding: 1rem 1.5rem;
    border: 2px solid rgba(80, 100, 85, 0.4);
    border-radius: 6px;
    background: rgba(30, 45, 40, 0.6);
    color: #d0e8d8;
    min-width: 200px;
}

#dateTime:focus {
    outline: none;
    border-color: #6b9080;
    background: rgba(30, 45, 40, 0.8);
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    background: #4a6b5a;
    color: white;
    transition: all 0.2s;
}

.btn:hover {
    background: #5a7d6a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 107, 90, 0.4);
}

.tasks {
    background: rgba(20, 35, 30, 0.75);
    padding: 2rem;
    border-radius: 8px;
    min-height: 400px;
    border: 1px solid rgba(80, 100, 85, 0.3);
    backdrop-filter: blur(10px);
}

.sec-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #d0e8d8;
}

.task {
    background: rgba(30, 45, 40, 0.6);
    padding: 1.5rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid rgba(80, 100, 85, 0.3);
}

.task.done {
    opacity: 0.6;
}

.task.done .txt {
    text-decoration: line-through;
}

.task.editing {
    border: 2px solid #6b9080;
    background: rgba(35, 50, 45, 0.8);
}

.chk {
    width: 24px;
    height: 24px;
    border: 2px solid #6b9080;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chk.active {
    background: #4a6b5a;
    border-color: #6b9080;
    color: white;
}

.info {
    flex: 1;
}

.txt {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: #d0e8d8;
}

.dt {
    font-size: 0.9rem;
    color: #8fb5a0;
}

.actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: transform 0.15s;
}

.edit-btn {
    background: #5a7d6a;
    color: white;
}

.edit-btn:hover {
    transform: scale(1.1);
}

.del-btn {
    background: #8b4545;
    color: white;
}

.del-btn:hover {
    transform: scale(1.1);
}

.empty {
    text-align: center;
    padding: 3rem;
    color: #8fb5a0;
}

.empty i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.4;
    color: #6b9080;
}

.filters {
    text-align: center;
    margin-bottom: 1.5rem;
}

.filter-btn {
    padding: 0.6rem 1.2rem;
    margin: 0 0.5rem;
    border: none;
    border-radius: 6px;
    background: #4a6b5a;
    color: white;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.filter-btn:hover {
    background: #5a7d6a;
}

.filter-btn.active {
    background: #2e4639;
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .input-area {
        padding: 1.5rem;
    }

    .input-wrap {
        flex-direction: column;
    }

    #dateTime {
        min-width: 100%;
    }

    .btn {
        width: 100%;
    }

    .tasks {
        padding: 1.5rem;
    }

    .task {
        flex-wrap: wrap;
        padding: 1rem;
    }

    .info {
        flex: 1 1 100%;
        margin-bottom: 0.5rem;
    }

    .actions {
        width: 100%;
        justify-content: flex-end;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        margin: 0 0.25rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    input[type="text"],
    #dateTime,
    .btn {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }

    .task {
        padding: 0.8rem;
    }

    .txt {
        font-size: 1rem;
    }

    .dt {
        font-size: 0.8rem;
    }

    .icon-btn {
        width: 36px;
        height: 36px;
    }

    .filter-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
}