body {
    background: linear-gradient(120deg, #f6d365 0%, #fda085 100%);
    min-height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    padding: 32px 28px 24px 28px;
    width: 100%;
    max-width: 400px;
    min-width: 280px;
}

h1 {
    text-align: center;
    margin-bottom: 24px;
    color: #f76b1c;
    letter-spacing: 1px;
}

#habit-form {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

#habit-input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid #fda085;
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    transition: border 0.2s;
}
#habit-input:focus {
    border-color: #f76b1c;
}

#habit-form button {
    background: #f76b1c;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 18px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}
#habit-form button:hover {
    background: #fda085;
}

#habit-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

#habit-list li {
    background: #fff7f0;
    border-radius: 8px;
    margin-bottom: 12px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(247,107,28,0.07);
    font-size: 1rem;
    transition: box-shadow 0.2s;
}
#habit-list li:last-child {
    margin-bottom: 0;
}

.habit-title {
    font-weight: 500;
    color: #f76b1c;
}

.habit-actions {
    display: flex;
    gap: 8px;
}

.habit-actions button {
    border: none;
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.habit-actions .done-btn {
    background: #e0ffe0;
    color: #1c7f2c;
}
.habit-actions .done-btn:hover {
    background: #b6fcb6;
}

.habit-actions .delete-btn {
    background: #ffe0e0;
    color: #c91c1c;
}
.habit-actions .delete-btn:hover {
    background: #fcb6b6;
}

@media (max-width: 500px) {
    .container {
        padding: 18px 6px 12px 6px;
        max-width: 98vw;
    }
    h1 {
        font-size: 1.3rem;
    }
    #habit-form button {
        padding: 8px 10px;
        font-size: 0.95rem;
    }
    #habit-input {
        font-size: 0.95rem;
    }
    #habit-list li {
        font-size: 0.95rem;
        padding: 8px 8px;
    }
}